butyl methyl ether

butane, 1-methoxy- N- butyl methyl ether N- butylmethylether ether, butyl methyl 1- methoxybutane methyl butyl ether methyl N-butyl ether methylbutylether PubMed: Energy analysis for the production of biodiesel in a spiral reactor using supercritical tert-butyl methyl ether (MTBE). PubMed: A comparative study of biodiesel production using methanol, ethanol, and tert-butyl methyl ether (MTBE) under supercritical conditions. PubMed: Rapid separation of cyanidin-3-glucoside and cyanidin-3-rutinoside from crude mulberry extract using high-performance countercurrent chromatography and establishment of a volumetric scale-up process. PubMed: A multi-targeted liquid chromatography-mass spectrometry screening procedure for the detection in human urine of drugs non-prohibited in sport commonly used by the athletes. PubMed: Large-scaled human serum sphingolipid profiling by using reversed-phase liquid chromatography coupled with dynamic multiple reaction monitoring of mass spectrometry: method development and application in hepatocellular carcinoma. PubMed: Hydrolysis of tert-butyl methyl ether (MTBE) in dilute aqueous acid. PubMed: Degradation mechanism of t-butyl methyl ether (MTBE) in atmospheric droplets. PubMed: A catalytic cycle for oxidation of tert-butyl methyl ether by a double C-H activation-group transfer process. PubMed: [Rapid dissolution of residual biliary calculi with tert-butyl methyl ether. Preliminary data]. PubMed: Versatile solvent systems for the separation of betalains from processed Beta vulgaris L. juice using counter-current chromatography. PubMed: LC-MS/MS assay for the determination of lurasidone and its active metabolite, ID-14283 in human plasma and its application to a clinical pharmacokinetic study. PubMed: Simultaneous and rapid determination of gefitinib, erlotinib, and afatinib plasma levels using liquid chromatography/tandem mass spectrometry in patients with non-small-cell lung cancer. PubMed: Preclinical pharmacokinetic evaluation of praziquantel loaded in poly (methyl methacrylate) nanoparticle using a HPLC-MS/MS. PubMed: A quantitative LC-MS/MS method for determining ipragliflozin, a sodium-glucose co-transporter 2 (SGLT-2) inhibitor, and its application to a pharmacokinetic study in rats. PubMed: A fast isocratic liquid chromatography method for the quantification of xanthophylls and their stereoisomers. PubMed: Development and validation of a LC-MS assay for the quantification of ikh12 a novel anti-tumor candidate in rat plasma and tissues and its application in a pharmacokinetic study. PubMed: A highly sensitive method for the quantification of fludrocortisone in human plasma using ultra-high-performance liquid chromatography tandem mass spectrometry and its pharmacokinetic application. PubMed: Development and validation of LC-MS/MS assay for the determination of the prodrug Midodrine and its active metabolite Desglymidodrine in plasma of ascitic patients: Application to individualized therapy and comparative pharmacokinetics. PubMed: Development of a method to screen and isolate potential α-glucosidase inhibitors from Panax japonicus C.A. Meyer by ultrafiltration, liquid chromatography, and counter-current chromatography. PubMed: HPLC-UV method for quantifying etoposide in plasma and tumor interstitial fluid by microdialysis: application to pharmacokinetic studies. PubMed: Development of an LC-MS/MS method for determination of bicalutamide on dried blood spots: application to pharmacokinetic study in mice. PubMed: Quantification of clenbuterol at trace level in human urine by ultra-high pressure liquid chromatography-tandem mass spectrometry. PubMed: Determination of exogenous epigallocatechin gallate peracetate in mouse plasma using liquid chromatography with quadrupole time-of-flight mass spectrometry. PubMed: Determining the fatty acid composition in plasma and tissues as fatty acid methyl esters using gas chromatography – a comparison of different derivatization and extraction procedures. PubMed: Comparative evaluation of seven different sample treatment approaches for large-scale multiclass sport drug testing in urine by liquid chromatography-mass spectrometry. PubMed: Novel hydrophobin-coated docetaxel nanoparticles for intravenous delivery: in vitro characteristics and in vivo performance. PubMed: A chiral high-performance liquid chromatography-tandem mass spectrometry method for the stereospecific determination of morinidazole in human plasma. PubMed: A non-invasive biomonitoring method for assessing levels of urinary pyrethroid metabolites in diapered children by gas chromatography-mass spectrometry. PubMed: High-resolution Orbitrap mass spectrometry for the analysis of carotenoids in tomato fruit: validation and comparative evaluation towards UV-VIS and tandem mass spectrometry. PubMed: Rate constant calculations of H-atom abstraction reactions from ethers by HȮ2 radicals. PubMed: A sensitive and fast method for trihalomethanes in urine using gas chromatography-triple quadrupole mass spectrometry. PubMed: Microsolvation and sp(2)-stereoinversion of monomeric α-(2,6-di-tert-butylphenyl)vinyllithium as measured by NMR. PubMed: Isolation of cyanidin 3-glucoside from blue honeysuckle fruits by high-speed counter-current chromatography. PubMed: Development of a supercritical fluid chromatography-tandem mass spectrometry method for the determination of lacidipine in beagle dog plasma and its application to a bioavailability study. PubMed: A comparison of patient matched meibum and tear lipidomes. PubMed: Effect of mobile phase on resolution of the isomers and homologues of tocopherols on a triacontyl stationary phase. PubMed: Combination of supercritical fluid extraction with counter-current chromatography to isolate anthocyanidins from the petals of Chaenomeles sinensis based on mathematical calculations. PubMed: Separation and quantification of 15 carotenoids by reversed phase high performance liquid chromatography coupled to diode array detection with isosbestic wavelength approach. PubMed: Validation of an electrospray ionisation LC-MS/MS method for quantitative analysis of telaprevir and its R-diastereomer. PubMed: Extraction and RP-HPLC determination of taxol in rat plasma, cell culture and quality control samples. PubMed: Development and validation of a LC-MS/MS method for the in vitro analysis of 1-hydroxymidazolam in human liver microsomes: application for determining CYP3A4 inhibition in complex matrix mixtures. PubMed: Application of supercritical fluid extraction coupled with counter-current chromatography for extraction and online isolation of unstable chemical components from Rosa damascena. PubMed: Liquid chromatography-tandem mass spectrometric assay for aliskiren, a novel renin inhibitor in micro-volumes of human plasma: a pharmacokinetic application in healthy South Indian male subjects. PubMed: A comparison of five lipid extraction solvent systems for lipidomic studies of human LDL. PubMed: Determination of gymnemagenin in rat plasma using high-performance liquid chromatography-tandem mass spectrometry: application to pharmacokinetics after oral administration of Gymnema sylvestre extract. PubMed: Determination of crenolanib in human serum and cerebrospinal fluid by liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS). PubMed: Determination of withaferin A and withanolide A in mice plasma using high-performance liquid chromatography-tandem mass spectrometry: application to pharmacokinetics after oral administration of Withania somnifera aqueous extract. PubMed: Synthesis and Pseudomonas lipase inhibition study of stereoisomers of decahydro-2-naphthyl-N-n-butylcarbamate. PubMed: Simple and sensitive liquid chromatography-tandem mass spectrometry methods for quantification of tadalafil in rat plasma: application to pharmacokinetic study in rats. PubMed: Determination of seven free anabolic steroid residues in eggs by high-performance liquid chromatography-tandem mass spectrometry. PubMed: Quantification of cabazitaxel, its metabolite docetaxel and the determination of the demethylated metabolites RPR112698 and RPR123142 as docetaxel equivalents in human plasma by liquid chromatography-tandem mass spectrometry. PubMed: Simultaneous determination of carisoprodol and aspirin in human plasma using liquid chromatography-tandem mass spectrometry in polarity switch mode: application to a human pharmacokinetic study. PubMed: Simultaneous determination of a novel anxiolytic agent buagafuran and one metabolite in human plasma by ultra-performance liquid chromatography-tandem mass spectrometry. PubMed: Validation of a fast and reliable liquid chromatography-tandem mass spectrometry (LC-MS/MS) with atmospheric pressure chemical ionization method for simultaneous quantitation of voriconazole, itraconazole and its active metabolite hydroxyitraconazole in human plasma. PubMed: A new, direct analytical method using LC-MS/MS for fatty acid esters of 3-chloro-1,2-propanediol (3-MCPD esters) in edible oils. PubMed: [Determination of three estrogens in animal liver and kidney tissues by liquid chromatography-tandem mass spectrometry]. PubMed: Molybdenum(VI) dioxo complexes employing Schiff base ligands with an intramolecular donor for highly selective olefin epoxidation. PubMed: Analytical method for the identification and assay of 12 phthalates in cosmetic products: application of the ISO 12787 international standard "Cosmetics-Analytical methods-Validation criteria for analytical results using chromatographic techniques". PubMed: Determination of NVP-BEZ235, a dual PI3K and mTOR inhibitor, in human and mouse plasma and in mouse tissue homogenates by reversed-phase high-performance liquid chromatography with fluorescence detection. PubMed: Development and validation of a liquid chromatography-tandem mass spectrometry assay for hair analysis of atomoxetine and its metabolites: Application in clinical practice. PubMed: Determination of atomoxetine and its metabolites in conventional and non-conventional biological matrices by liquid chromatography-tandem mass spectrometry. PubMed: High-performance liquid chromatography analysis of a novel small-molecule, anti-cancer drug, Palomid 529, in human and mouse plasma and in mouse tissue homogenates. PubMed: High-throughput analysis of testosterone in serum samples by on-line solid phase extraction liquid chromatography-tandem mass spectrometry. PubMed: High-performance liquid chromatographic method with amperometric detection employing boron-doped diamond electrode for the determination of sildenafil, vardenafil and their main metabolites in plasma. PubMed: HPLC-UV method development for fentanyl determination in rat plasma and its application to elucidate pharmacokinetic behavior after i.p. administration to rats. PubMed: Determination of vandetanib in human plasma and cerebrospinal fluid by liquid chromatography electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS). PubMed: GC-MS method for the simultaneous determination of β-blockers, flavonoids, isoflavones and their metabolites in human urine. PubMed: Practical access to the proline analogs (S,S,S)- and (R,R,R)-2-methyloctahydroindole-2-carboxylic acids by HPLC enantioseparation. PubMed: Liquid chromatography-atmospheric pressure chemical ionization tandem mass spectrometry for the simultaneous determination of dimethoxyaschantin, dimethylliroresinol, dimethylpinoresinol, epimagnolin A, fargesin and magnolin in rat plasma. PubMed: High-performance liquid chromatography/tandem mass spectrometry method for the determination of arbidol in human plasma. PubMed: HPLC with ultraviolet detection for the determination of chloroquine and desethylchloroquine in whole blood and finger-prick capillary blood dried on filter paper. PubMed: Simple HPLC method for determination of rosiglitazone in sheep plasma and amniotic fluid and its application in a pregnant sheep model. PubMed: An examination of pentafluorobenzoyl derivatization strategies for the analysis of fatty alcohols using gas chromatography/electron capture negative ion chemical ionization-mass spectrometry. PubMed: Simultaneous identification and validated quantification of 11 oral hypoglycaemic drugs in plasma by electrospray ionisation liquid chromatography-mass spectrometry. PubMed: Rapid and simultaneous measurement of midazolam, 1'-hydroxymidazolam and digoxin by liquid chromatography/tandem mass spectrometry: application to an in vivo study to simultaneously measure P-glycoprotein and cytochrome P450 3A activity. PubMed: Validation of a GC/MS method for the detection of two quinolinone-derived selective androgen receptor modulators in doping control analysis. PubMed: Improved methods for the fatty acid analysis of blood lipid classes. PubMed: Quantification of triamcinolone acetonide in ocular tissues after intravitreal injection to rabbit using liquid chromatography-tandem mass spectrometry. PubMed: Determination of myrtucommulone from Myrtus communis in human and rat plasma by liquid chromatography/tandem mass spectrometry. PubMed: New phenolic grape skin products from Vitis vinifera cv. Pinot Noir. PubMed: Enantioselective aerobic oxidation of α-hydroxy-ketones catalyzed by oxidovanadium(V) methoxides bearing chiral, N-salicylidene-tert-butylglycinates. PubMed: Determination of doxazosin and verapamil in human serum by fast LC-MS/MS: application to document non-compliance of patients. PubMed: Liquid chromatography/tandem mass spectrometry method for determination of olanzapine and N-desmethylolanzapine in human serum and cerebrospinal fluid. PubMed: Separation of anthocyanins from Perilla frutescens by high speed countercurrent chromatography. PubMed: A highly sensitive LC-MS/MS method for the determination of S-citalopram in rat plasma: application to a pharmacokinetic study in rats. PubMed: A sensitive and specific liquid chromatography-tandem mass spectrometric method for determination of belinostat in plasma from liver cancer patients. PubMed: Bioreduction of alpha-methylcinnamaldehyde derivatives: chemo-enzymatic asymmetric synthesis of Lilial and Helional. PubMed: Liquid chromatographic analysis of the anticancer alkaloid luotonin A and some new derivatives in human serum samples. PubMed: Quantification of sunitinib in human plasma by high-performance liquid chromatography-tandem mass spectrometry. PubMed: Metabolites of ephedrines in human urine after administration of a single therapeutic dose. PubMed: Simultaneous determination of pyrethroid and pyrethrin metabolites in human urine by gas chromatography-high resolution mass spectrometry. PubMed: Development and validation of a liquid chromatography-isotope dilution tandem mass spectrometry for determination of olanzapine in human plasma and its application to bioavailability study. PubMed: Simultaneous determination of itraconazole and hydroxyitraconazole in human plasma by liquid chromatography-isotope dilution tandem mass spectrometry method. PubMed: HPLC determination of bezafibrate in human plasma and its application to pharmacokinetics studies. PubMed: Oxygen-atom transfer from carbon dioxide to a Fischer carbene at (PNP)Ir. PubMed: High-performance liquid chromatographic analysis of retinal and retinol isomers. PubMed: Liquid chromatography-tandem mass spectrometry for the determination of paclitaxel in rat plasma after intravenous administration of poly(L-glutamic acid)-alanine-paclitaxel conjugate. PubMed: Bioanalytical method for the quantification of sunitinib and its n-desethyl metabolite SU12662 in human plasma by ultra performance liquid chromatography/tandem triple-quadrupole mass spectrometry. PubMed: [Simultaneous determination of stimulant, narcotics and antiestrogen in urine by gas chromatography-nitrogen phosphorous detection]. PubMed: Simultaneous determination of diosmin and diosmetin in human plasma by ion trap liquid chromatography-atmospheric pressure chemical ionization tandem mass spectrometry: Application to a clinical pharmacokinetic study. PubMed: Direct space methods for powder X-ray diffraction for guest-host materials: applications to cage occupancies and guest distributions in clathrate hydrates. PubMed: [Determination of ten sedative residues in pork and kidney by ultra performance liquid chromatography-tandem mass spectrometry]. PubMed: Development of a high-performance liquid chromatographic-mass spectrometric method for the determination of cellular levels of the tyrosine kinase inhibitors lapatinib and dasatinib. PubMed: A routine feasible HPLC analysis for the anti-angiogenic tyrosine kinase inhibitor, sunitinib, and its main metabolite, SU12662, in plasma. PubMed: Determination of anabolic steroids in muscle tissue by liquid chromatography-tandem mass spectrometry. PubMed: Simultaneous determination of venlafaxine and its main active metabolite O-desmethyl venlafaxine in rat plasma by LC-MS/MS. PubMed: Separation of polar betalain pigments from cacti fruits of Hylocereus polyrhizus by ion-pair high-speed countercurrent chromatography. PubMed: Determination of zearalenone by liquid chromatography/tandem mass spectrometry and application to a pharmacokinetic study. PubMed: Mechanistic consequences of composition in acid catalysis by polyoxometalate keggin clusters. PubMed: Determination of imatinib mesylate and its main metabolite (CGP74588) in human plasma and murine specimens by ion-pairing reversed-phase high-performance liquid chromatography. PubMed: Stereoselective determination of allethrin by two-dimensional achiral/chiral liquid chromatography with ultraviolet/circular dichroism detection. PubMed: Estimation of rat blood:air partition coefficients of volatile organic chemicals using reconstituted mixtures of blood components. PubMed: Application of centrifugal counter-current chromatography to the separation of macrolide antibiotic analogues. I. Selection of solvent systems based on solubility and partition coefficient investigations. PubMed: New sensitive method for the determination of hydrochlorothiazide in human serum by high-performance liquid chromatography with electrochemical detection. PubMed: Determination of anabolic steroids in bovine urine by liquid chromatography-tandem mass spectrometry. PubMed: Isolation of hydroxycinnamoyltartaric acids from grape pomace by high-speed counter-current chromatography. PubMed: Improved procedures for the generation of diborane from sodium borohydride and boron trifluoride. PubMed: Hydroboration. 97. Synthesis of new exceptional chloroborane--Lewis base adducts for hydroboration. Dioxane--monochloroborane as a superior reagent for the selective hydroboration of terminal alkenes. PubMed: Rapid and cost-effective determination of acrylamide in coffee by planar chromatography and fluorescence detection after derivatization with dansulfinic acid. PubMed: Application of silver ion in the separation of macrolide antibiotic components by high-speed counter-current chromatography. PubMed: Determination of a novel paclitaxel derivative (NPD-103) in human plasma by ultra-performance liquid chromatography-tandem mass spectrometry. PubMed: Isolation of isomangiferin from honeybush (Cyclopia subternata) using high-speed counter-current chromatography and high-performance liquid chromatography. PubMed: Liquid chromatography-tandem mass spectrometry for the determination of methylprednisolone in rat plasma and liver after intravenous administration of its liver-targeted dextran prodrug. PubMed: Determination of a novel epothilone D analog (AV-EPO-106) in human plasma using ultra-performance liquid chromatography-tandem mass spectrometry. PubMed: Qualitative confirmation procedure for ephedrines as acetonide derivatives in doping urine samples by gas chromatography/electron ionization mass spectrometry. PubMed: Sensitive quantitation of reboxetine enantiomers in rat plasma and brain, using an optimised reverse phase chiral LC-MS/MS method. PubMed: [Simultaneous determination of nine beta-agonist residues in animal derived foods by ultra performance liquid chromatography-tandem mass spectrometry]. PubMed: Development and validation of reversed phase liquid chromatographic method utilizing ultraviolet detection for quantification of irinotecan (CPT-11) and its active metabolite, SN-38, in rat plasma and bile samples: application to pharmacokinetic studies. PubMed: Activity coefficients at infinite dilution measurements for organic solutes and water in the ionic liquid 1-butyl-3-methylimidazolium trifluoromethanesulfonate. PubMed: Purification of gangliosides by liquid-liquid partition chromatography. PubMed: Determination of Paclitaxel in Human Plasma by UPLC-MS-MS. PubMed: Determination of anabolic steroids in muscle tissue by liquid chromatography-tandem mass spectrometry. PubMed: Determination of 2-isopropyl thioxanthone and 2-ethylhexyl-4-dimethylaminobenzoate in milk: comparison of gas and liquid chromatography with mass spectrometry. PubMed: Electron ionization mass spectra of ephedrines in a doping confirmatory procedure: a curious migration of the trimethylsilyl group in the N-acetyl-O-trimethylsilyl derivatives. PubMed: Counter-current chromatographic estimation of hydrophobicity of Z-(cis) and E-(trans) enalapril and kinetics of cis/trans isomerization. PubMed: Employing atmospheric pressure photoionization in liquid chromatography/tandem mass spectrometry to minimize ion suppression and matrix effects for the quantification of venlafaxine and O-desmethylvenlafaxine. PubMed: High-performance liquid chromatographic method for the determination and pharmacokinetic study of oxypeucedanin hydrate and byak-angelicin after oral administration of Angelica dahurica extracts in mongrel dog plasma. PubMed: Separations of hydrophobic synthetic peptides in counter-current chromatography. PubMed: Determination of roxatidine in human plasma by liquid chromatography/electrospray mass spectrometry and application to a clinical pharmacokinetic study. PubMed: Hydrate kinetics study in the presence of nonaqueous liquid by nuclear magnetic resonance spectroscopy and imaging. PubMed: LC-MS determination and relative bioavailability of doxazosin mesylate tablets in healthy Chinese male volunteers. PubMed: Use of tert-butylbenzoylated tartardiamide chiral stationary phase for the enantiomeric resolution of acidic compounds by nano-liquid chromatography. PubMed: Liquid chromatography/tandem triple-quadrupole mass spectrometry for determination of paclitaxel in rat tissues. PubMed: Quantification of tipranavir in human plasma by high-performance liquid chromatography with UV detection. PubMed: Analytical separation of tea catechins and food-related polyphenols by high-speed counter-current chromatography. PubMed: Analysis of coumarin 7-hydroxylation activity of cytochrome P450 2A6 using random mutagenesis. PubMed: Liquid chromatography-electrospray tandem mass spectrometry method for determination of indapamide in serum for single/multiple dose bioequivalence studies of sustained release formulations. PubMed: Paclitaxel quantification in mouse plasma and tissues containing liposome-entrapped paclitaxel by liquid chromatography-tandem mass spectrometry: application to a pharmacokinetics study. PubMed: Quantitative analysis of the P-glycoprotein inhibitor Elacridar (GF120918) in human and dog plasma using liquid chromatography with tandem mass spectrometric detection. PubMed: [Simultaneous determination of pseudoephedrine and chlorpheniramine in human plasma by HPLC-UV detection method]. PubMed: Sensitive and selective liquid chromatography-electrospray ionization tandem mass spectrometry analysis of hydrochlorothiazide in rat plasma. PubMed: Effect of Coriolis force on counter-current chromatographic separation by centrifugal partition chromatography. PubMed: Sensitive high-performance liquid chromatography/mass spectrometry method for determination of steviol in rat plasma. PubMed: Enantioselective Lewis acid-catalyzed Mukaiyama-Michael reactions of acyclic enones. Catalysis by allo-threonine-derived oxazaborolidinones. PubMed: Bioanalysis of zosuquidar trihydrochloride (LY335979) in small volumes of human and murine plasma by ion-pairing reversed-phase high-performance liquid chromatography. PubMed: Comparison of Mediterranean Pistacia lentiscus genotypes by random amplified polymorphic DNA, chemical, and morphological analyses. PubMed: Liquid chromatographic assay for the simultaneous determination of indole-3-carbinol and its acid condensation products in plasma. PubMed: Purification of quinoline yellow components using high-speed counter-current chromatography by stepwise increasing the flow-rate of the mobile phase. PubMed: Simultaneous determination of nine antiretroviral compounds in human plasma using liquid chromatography. PubMed: Evaluation of exudates by solid phase microextraction-gas chromatography. PubMed: Enhanced photo-degradation of contaminants in petroleum refinery wastewater. PubMed: [Determination of 4-bromo-2,5-dimethoxyamphetamine (DOB) found in illicit tablets seized in Italy]. PubMed: Simultaneous quantitation of ephedrines in urine by gas chromatography-nitrogen-phosphorus detection for doping control purposes. PubMed: Determination of clenbuterol residues in bovine urine by optical immunobiosensor assay. PubMed: Comparison of tanker drivers' occupational exposures before and after the installation of a vapour recovery system. PubMed: Ascorbic acid reduction of residual active chlorine in potable water prior to halocarboxylate determination. PubMed: Normal-phase high-performance liquid chromatography of tocopherols and tocotrienols. Comparison of different chromatographic columns. PubMed: Determination of linsidomine in human plasma by tandem LC-MS with ESI. PubMed: Determination of erythromycin, clarithromycin, roxithromycin, and azithromycin in plasma by high-performance liquid chromatography with amperometric detection. PubMed: Separation and purification of anthocyanins by high-speed countercurrent chromatography and screening for antioxidant activity. PubMed: Long-term detection of clenbuterol in human scalp hair by gas chromatography-high-resolution mass spectrometry. PubMed: Analysis of brefeldin A and the prodrug breflate in plasma by gas chromatography with mass selective detection. PubMed: Stereoselective determination of clenbuterol in human urine by capillary electrophoresis. PubMed: Sensitive high-performance liquid chromatographic determination of arbidol, a new antiviral compound, in human plasma. PubMed: Validated method for the determination of idazoxan in human plasma by liquid chromatography with tandem mass spectrometric detection. PubMed: Quantitation of o-, m- and p-cresol and deuterated analogs in human urine by gas chromatography with electron capture detection. PubMed: Determination of erythromycin concentrations in rat plasma and liver by high-performance liquid chromatography with amperometric detection. PubMed: A multiresidue method for determination of trace levels of pesticides in air and water. PubMed: Determination of resin acids in pulp mill EOP bleaching process effluent. PubMed: Determination of paclitaxel in biological fluids by micellar electrokinetic chromatography. PubMed: Specific high-performance liquid chromatographic assay with ultraviolet detection for the determination of 1-(2-chloroethyl)-3-sarcosinamide-1-nitrosourea in plasma. PubMed: A liquid chromatographic assay for the stereospecific quantitative analysis of halofantrine in human plasma. PubMed: High-performance liquid chromatographic assay for genistein in biological fluids. PubMed: Degradation of 1,4-dioxane by an actinomycete in pure culture. PubMed: Positive ion EI mass spectra of 2,3,5-trisubstituted-1,5-benzothiazepines, diltiazem, clentiazem and their fat-soluble metabolites. PubMed: Sample clean-up and high-performance liquid chromatographic techniques for measurement of whole blood rapamycin concentrations. PubMed: Improved purification of an (R)-oxynitrilase from Linum usitatissimum (flax) and investigation of the substrate range. PubMed: Determination of lansoprazole and its metabolites in plasma by high-performance liquid chromatography using a loop column. PubMed: Determination of clenbuterol in urine as its cyclic boronate derivative by gas chromatography-mass spectrometry. PubMed: Rapid screening method for the determination of diethylstilbestrol in edible animal tissue by column liquid chromatography with electrochemical detection. PubMed: Determination of the monoamine oxidase B inhibitor Ro 19-6327 in plasma by high-performance liquid chromatography using precolumn derivatization with fluorescamine and fluorescence detection. PubMed: Analysis of anticancer drugs in biological fluids: determination of taxol with application to clinical pharmacokinetics. PubMed: Determination of erythromycin in human plasma, using column liquid chromatography with a polymeric packing material, alkaline mobile phase and amperometric detection. PubMed: A HPLC method for the simultaneous determination of disopyramide, lidocaine and their monodealkylated metabolites. PubMed: Analysis of clomiphene isomers in human plasma and detection of metabolites using reversed-phase chromatography and fluorescence detection. PubMed: [Determination of eleven steroid hormones in animal muscle tissues and eggs using ultra-performance liquid chromatography-tandem mass spectrometry]. PubMed: Implementation of gas chromatography combined with simultaneously selected ion monitoring and full scan mass spectrometry in doping analysis. PubMed: Urinary metabolic profile of 19-norsteroids in humans: glucuronide and sulphate conjugates after oral administration of 19-nor-4-androstenediol. PubMed: Ultra-performance liquid chromatography-tandem mass spectrometry for the determination of lacidipine in human plasma and its application in a pharmacokinetic study. PubMed: A chemoenzymatic approach to the synthesis of enantiomerically pure (S)-3-hydroxy-gamma-butyrolactone. PubMed: Determination of lovastatin in human plasma by ultra-performance liquid chromatography-electrospray ionization tandem mass spectrometry and its application in a pharmacokinetic study. PubMed: A stereospecific high-performance liquid chromatographic assay for the determination of ketoconazole enantiomers in rat plasma. PubMed: A novel enantioselective microassay for the high-performance liquid chromatography determination of oxcarbazepine and its active metabolite monohydroxycarbazepine in human plasma. PubMed: A small-scale method for quantitation of carotenoids in bacteria and yeasts. PubMed: A new high performance liquid chromatographic method for quantification of atomoxetine in human plasma and its application for pharmacokinetic study. PubMed: Ultra-performance liquid chromatography/tandem mass spectrometry method for the determination of lercanidipine in human plasma. PubMed: Optimisation of the derivatization in cellulose-type chiral selectors for enantioseparation by centrifugal partition chromatography. PubMed: Effect of the mobile phase on the retention behavior of optical isomers of the mandelic acid derivative methyl 2-phenyl-2-(tetrahydropyranyloxy) acetate by chiral HPLC. PubMed: GC-MS determination of amphetamines in serum using on-line trifluoroacetylation. PubMed: Double deprotonation of coordinated ethylimide to CH3CN: molecular mechanism and relevance to the chemistry of Mo and W organoimides. PubMed: Determination of paclitaxel in rat plasma by LC-MS-MS. PubMed: Determination of phthalates in milk and milk products by liquid chromatography/tandem mass spectrometry. PubMed: Stability studies of testosterone and epitestosterone glucuronides in urine. PubMed: Development of a faster determination of 10 anabolic steroids residues in animal muscle tissues by liquid chromatography tandem mass spectrometry. PubMed: Simultaneous determination of carotenoids, tocopherols, and gamma-oryzanol in crude rice bran oil by liquid chromatography coupled to diode array and mass spectrometric detection employing silica C30 stationary phases. PubMed: Isolation of flavanol-anthocyanin adducts by countercurrent chromatography. PubMed: Rapid liquid chromatography-tandem mass spectrometry method for quantification of ziprasidone in human plasma. PubMed: Determination of tadalafil in small volumes of plasma by high-performance liquid chromatography with UV detection. PubMed: Characterization of pigments from different high speed countercurrent chromatography wine fractions. PubMed: Quantitation of itopride in human serum by high-performance liquid chromatography with fluorescence detection and its application to a bioequivalence study. PubMed: Hemiortho esters and hydrotrioxides as the primary products in the low-temperature ozonation of cyclic acetals: an experimental and theoretical investigation. PubMed: A simple and sensitive assay for the quantitative analysis of paclitaxel in human and mouse plasma and brain tumor tissue using coupled liquid chromatography and tandem mass spectrometry. PubMed: A rapid, sensitive and validated method for the determination of ondansetron in human plasma by reversed-phase high-pressure liquid chromatography. PubMed: Synthesis and HPLC enantioseparation of the cyclopropane analogue of valine (c3Val). PubMed: Simultaneous determination of YM-64227, a phosphodiesterase type 4 inhibitor, and its five metabolites in dog plasma by high-performance liquid chromatography with fluorescence detection. PubMed: Simple, sensitive and rapid liquid chromatographic/electrospray ionization tandem mass spectrometric method for the quantification of lacidipine in human plasma. PubMed: Identification and quantification of carotenoids including geometrical isomers in fruit and vegetable juices by liquid chromatography with ultraviolet-diode array detection. PubMed: Fractionation of grape anthocyanin classes using multilayer coil countercurrent chromatography with step gradient elution. PubMed: Quantitation of SU1 1248, an oral multi-target tyrosine kinase inhibitor, and its metabolite in monkey tissues by liquid chromatograph with tandem mass spectrometry following semi-automated liquid-liquid extraction. PubMed: Development and validation of a gas chromatography-mass spectrometry assay for hair analysis of amphetamine, methamphetamine and methylenedioxy derivatives. PubMed: Migration of lubricants from food packagings. Screening for lipid classes and quantitative estimation using normal-phase liquid chromatographic separation with evaporative light scattering detection. PubMed: Mechanism of formation of hydrogen trioxide (HOOOH) in the ozonation of 1,2-diphenylhydrazine and 1,2-dimethylhydrazine: an experimental and theoretical investigation. PubMed: Evidence for the HOOO(-) anion in the ozonation of 1,3-dioxolanes: hemiortho esters as the primary products. PubMed: Rapid and sensitive liquid chromatography-tandem mass spectrometry method for the quantitation of domperidone in human plasma. PubMed: [Coprecipitation of the Pseudomonas fluorescens lipase with hydrophobic compounds as an approach to its immobilization for catalysis in nonaqueous media]. PubMed: Evidence for HOOO radicals in the formation of alkyl hydrotrioxides (ROOOH) and hydrogen trioxide (HOOOH) in the ozonation of C-H bonds in hydrocarbons. PubMed: Determination of ochratoxin A in baby food by immunoaffinity column cleanup with liquid chromatography: interlaboratory study. PubMed: Effect of water activity and immobilization on fatty acid selectivity for esterification reactions mediated by lipases. PubMed: Bioanalysis and preliminary pharmacokinetics of the acridonecarboxamide derivative GF120918 in plasma of mice and humans by ion-pairing reversed-phase high-performance liquid chromatography with fluorescence detection. PubMed: Determination of plasma bromvalerylurea and its main metabolite by a simple high-performance liquid chromatographic method and quantitation of bromide by energy dispersive X-ray spectrometry in carbon tetrachloride-intoxicated rats. PubMed: Sensitive and simple determination of mannitol in human brain tissues by gas chromatography-mass spectrometry. PubMed: Influences of metal cations on the determination of the alpha-oxocarboxylates as the methyl esters of the O-(2,3,4,5,6-pentafluorobenzyl)oximes by gas chromatography: the importance of accounting for matrix effects. PubMed: Molecular addition compounds. 16. New, highly reactive borane adducts with N,N-dialkyl-tert-alkylamines for hydroboration PubMed: High-performance liquid chromatography of non-polar retinoid isomers. PubMed: The effect of overliming on the toxicity of dilute acid pretreated lignocellulosics: the role of inorganics, uronic acids and ether-soluble organics. PubMed: Comparative fatty acid selectivity of lipases in esterification reactions with glycerol and diol analogues in organic media. PubMed: 17O NMR spectroscopic characterization and the mechanism of formation of alkyl hydrotrioxides (ROOOH) and hydrogen trioxide (HOOOH) in the low-temperature ozonation of isopropyl alcohol and isopropyl methyl ether: water-assisted decomposition PubMed: Adaptation of solid phase extraction to an automated column switching method for online sample cleanup as the basis of a facile and sensitive high-performance liquid chromatographic assay for paclitaxel in human plasma. PubMed: Comparative methodology in the determination of alpha-oxocarboxylates in aqueous solution ion chromatography versus gas chromatography after oximation, extraction and esterification. PubMed: Quantitative determination of tolbutamide and its metabolites in human plasma and urine by high-performance liquid chromatography and UV detection. PubMed: Rapid and sensitive determination of paclitaxel in mouse plasma by high-performance liquid chromatography. PubMed: Assay for the quinocarmycin analog DX-52-1 in human plasma using high-performance liquid chromatography with automated column switching and low wavelength ultraviolet detection. PubMed: Separation of lac dye components by high-speed counter-current chromatography. PubMed: Laxative poisoning: toxicological analysis of bisacodyl and its metabolite in urine, serum, and stool. PubMed: Toluene 2-Monooxygenase-Dependent Growth of Burkholderia cepacia G4/PR1 on Diethyl Ether. PubMed: Isolation of 4'-bromo-4,5,6,7-tetrachlorofluorescein from a synthetic mixture by pH-zone-refining counter-current chromatography with continuous pH monitoring. PubMed: High-performance liquid chromatographic determination of primary amines in aqueous solutions after extraction and derivatization with 2,2-diphenyl-1-oxa-3-oxonia-2-boratanaphthalene (DOOB). PubMed: Separation and purification of peptides by high-speed counter-current chromatography. 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