diatomaceous earth

aquafil N 81 armsorb gkhi calofrig Fj celatom celite chromaton chromatron N super chromosorb G diatomite fossil flour kieselguhr kieselgur silica diatomaceous siliceous earth PubMed: The insecticidal effect of diatomaceous earth against adults and nymphs of Blattella germanica. PubMed: Anionic surfactant micelle-mediated extraction coupled with dispersive magnetic microextraction for the determination of phthalate esters. PubMed: Optimisation of a sample preparation method for the determination of fumonisin B(1) in rice. PubMed: Production and characterization of crude and refined oils obtained from the co-products of Nile tilapia and hybrid sorubim processing. PubMed: Horizontal transfer of diatomaceous earth and botanical insecticides in the common bed bug, Cimex lectularius L.; hemiptera: cimicidae. PubMed: Simultaneous determination of total fatty acid esters of chloropropanols in edible oils by gas chromatography-mass spectrometry with solid-supported liquid-liquid extraction. PubMed: Validation (in-house and collaboratory) of the quantification method for ethyl carbamate in alcoholic beverages and soy sauce by GC-MS. PubMed: Micro-nanopores fabricated by high-energy electron beam irradiation: suitable structure for controlling pesticide loss. PubMed: A rapid method to determine sterol, erythrodiol, and uvaol concentrations in olive oil. PubMed: Purification of recombinant EGFP by fusion with L2 (252-273) from ribosomal protein L2 using magnetic particles. PubMed: Characterization of the diatomite binding domain in the ribosomal protein L2 from E. coli and functions as an affinity tag. PubMed: Determination of chlorophylls in Taraxacum formosanum by high-performance liquid chromatography-diode array detection-mass spectrometry and preparation by column chromatography. PubMed: Determination of carotenoids in Taraxacum formosanum by HPLC-DAD-APCI-MS and preparation by column chromatography. PubMed: Immobilization of glucosyltransferase from Erwinia sp. using two different techniques. PubMed: Matrix solid phase dispersion extraction of ginsenosides in the leaves of Panax ginseng C.M. Mey. PubMed: Determination of chloropropanols in foods by one-step extraction and derivatization using pressurized liquid extraction and gas chromatography-mass spectrometry. PubMed: [Study on rapid analysis method of pesticide contamination in processed foods by GC-MS and GC-FPD]. PubMed: Determination of perfluorinated compounds in mollusks by matrix solid-phase dispersion and liquid chromatography-tandem mass spectrometry. PubMed: Effect of diatomaceous earth on parasite load, egg production, and egg quality of free-range organic laying hens. PubMed: Preparation of carotenoids and chlorophylls from Gynostemma pentaphyllum (Thunb.) Makino and their antiproliferation effect on hepatoma cell. PubMed: Capillary liquid chromatography with diode array and mass spectrometry detection for heterocyclic aromatic amine determination in ready-to-eat food treated with electron-beam irradiation. PubMed: [Analysis of acephate, methamidophos and omethoate in animal and fishery products, and honey by LC-MS]. PubMed: Multi-residue method for the determination of organochlorine pesticides in fish feed based on a cleanup approach followed by gas chromatography-triple quadrupole tandem mass spectrometry. PubMed: Silicon in beer and brewing. PubMed: Acaricidal effect of different diatomaceous earth formulations against Tyrophagus putrescentiae (Astigmata: Acaridae) on stored wheat. PubMed: Determination of benzoylurea insecticides in food by pressurized liquid extraction and LC-MS. PubMed: Short communication: Evaluation of supercritical fluid extraction aids for optimum extraction of nonpolar lipids from buttermilk powder. PubMed: Detection and isolation of antiatherogenic and antioxidant substances present in olive mill wastes by a novel filtration system. PubMed: Optimized HPLC method for analysis of polar and nonpolar heterocyclic amines in cooked meat products. PubMed: Matrix solid-phase dispersion as a sample pretreatment for the speciation of arsenic in seafood products. PubMed: Evaluation of natural diatomaceous earth deposits from south-eastern Europe for stored-grain protection: the effect of particle size. PubMed: Development of an analytical scheme for the determination of pyrethroid pesticides in composite diet samples. PubMed: [Factors affecting Diatomaceous earth effectiveness in the control of Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae) adults]. PubMed: Determination of neonicotinoid insecticides residues in bovine milk samples by solid-phase extraction clean-up and liquid chromatography with diode-array detection. PubMed: Esterification and hydrolytic activities of Candida rugosa lipase isoform 1 (LIP1) immobilized on celite 545, duolite A7, and sephadex G-25. PubMed: Removal of basic dye (methylene blue) from wastewaters utilizing beer brewery waste. PubMed: Use of solid-supported liquid-liquid extraction in the analysis of polyphenols in wine. PubMed: On-capillary sample cleanup method for the electrophoretic determination of carbohydrates in juice samples. PubMed: Effect of fining and filtration on the haze formation in bayberry (Myrica rubra Sieb. et Zucc.) juice. PubMed: Influence of instar and commodity on insecticidal effect of two diatomaceous earth formulations against larvae of Ephestia kuehniella (Lepidoptera: Pyralidae). PubMed: Susceptibility of different European populations of Tribolium confusum (coleoptera: Tenebrionidae) to five diatomaceous earth formulations. PubMed: Effect of temperature and humidity on insecticidal effect of SilicoSec against Ephestia kuehniella (Lepidoptera: Pyralidae) larvae. PubMed: Effect of temperature, exposure interval, and depth of diatomaceous earth treatment on distribution, mortality, and progeny production of lesser grain borer (Coleoptera: Bostrichidae) in stored wheat. PubMed: Automated method for measuring globin adducts of acrylamide and glycidamide at optimized Edman reaction conditions. PubMed: Determination of carbendazim residues in fruit juices by liquid chromatography-tandem mass spectrometry. PubMed: Application of accelerated solvent extraction followed by gel performance chromatography and high-performance liquid chromatography for the determination of polycyclic aromatic hydrocarbons in mussel tissue. PubMed: Determination of pesticides and PCBs in virgin olive oil by multicolumn solid-phase extraction cleanup followed by GC-NPD/ECD and confirmation by ion-trap GC-MS. PubMed: A cost-effective screening method for pesticide residue analysis in fruits, vegetables, and cereal grains. PubMed: Determination of 266 pesticide residues in apple juice by matrix solid-phase dispersion and gas chromatography-mass selective detection. PubMed: Application of tandem mass spectrometry combined with gas chromatography to the routine analysis of ethyl carbamate in stone-fruit spirits. PubMed: Improved method to obtain pure alpha-galactosides from lupin seeds. PubMed: Residues and half-lives of pyrethrins on field-grown pepper and tomato. PubMed: Optimization of a clean-up procedure for the determination of heterocyclic aromatic amines in urine by field-amplified sample injection-capillary electrophoresis-mass spectrometry. PubMed: Efficacy of diatomaceous earth to control internal infestations of rice weevil and maize weevil (Coleoptera: Curculionidae). PubMed: Determination of total fat in milk- and soy-based infant formula powder by supercritical fluid extraction. PubMed: Synthesis of antioxidant propyl gallate using tannase from Aspergillus niger van Teighem in nonaqueous media. PubMed: Purification and characterization of molybdenum species from Medicago sativa (alfalfa) grown on mine tailings. PubMed: Determination of pesticides in composite dietary samples by gas chromatography/mass spectrometry in the selected ion monitoring mode by using a temperature-programmable large volume injector with preseparation column. PubMed: Immobilization and characterization of ficin. PubMed: Determination of crude fat in meat by supercritical fluid extraction: direct method: PVM 3:2000. PubMed: Action of amorphous diatomaceous earth against different stages of the stored product pests Tribolium confusum, Tenebrio molitor, Sitophilus granarius and Plodia interpunctella. PubMed: Grain surface-layer treatment of diatomaceous earth for insect control. PubMed: Classification of chili powders by thin-layer chromatography and principal component analysis. PubMed: Impact of food source on survival of red flour beetles and confused flour beetles (Coleoptera: Tenebrionidae) exposed to diatomaceous earth. PubMed: Simple method of isolation and purification of alpha-galactosides from legumes. PubMed: Toxicity of diatomaceous earth to red flour beetles and confused flour beetles (Coleoptera: Tenebrionidae): effects of temperature and relative humidity. PubMed: Automatic microgravimetric determination of fats in milk products by use of supercritical fluid extraction with on-line piezoelectric detection. PubMed: Selectivity of celite-immobilized patatin (lipid acyl hydrolase) from potato (Solanum tuberosum L.) tubers in esterification reactions As influenced by water activity and glycerol analogues as alcohol acceptors. PubMed: Polyphenolic content in five tuscany cultivars of Olea europaea L. PubMed: Rapid determination of citrinin in corn by fluorescence liquid chromatography and enzyme immunoassay. PubMed: trans-resveratrol content in commercial peanuts and peanut products. PubMed: Experimental Induction of Morphological Deformities in Chironomus riparius Larvae by Chronic Exposure to Copper and Lead PubMed: Comparison of inert markers [chromic oxide or insoluble ash (Celite)] for determining apparent metabolizable energy of wheat- or barley-based broiler diets with or without enzymes. PubMed: Comparison of the properties of trypsin immobilized on 2 Celite derivatives. PubMed: [Changes in the lymph nodes of rats under the influence of natural sorbents in damaging exposure to carbophos]. PubMed: Determination and survey of deoxynivalenol in white flour, whole wheat flour, and bran. PubMed: Multicolumn solid-phase extraction cleanup of organophosphorus and organochlorine pesticide residues in vegetable oils and butterfat. PubMed: Biogenic amorphous silica. PubMed: Quantitative determination of heterocyclic amines in food products. PubMed: Application of solid-phase partition cartridges in the determination of fungicide residues in vegetable samples. PubMed: Characteristics of beta-lactoglobulin binding to the all-trans-retinal moiety covalently immobilized on Celite. PubMed: Quantitation of mutagenic/carcinogenic heterocyclic aromatic amines in food products. PubMed: Enhanced supercritical fluid carbon dioxide extraction of pesticides from foods using pelletized diatomaceous earth. PubMed: The manipulation of DNA with restriction enzymes in low water systems. PubMed: Rapid immunochemical screening method for aflatoxin B1 in human and animal urine. PubMed: Migration testing of plastics and microwave-active materials for high-temperature food-use applications. PubMed: Simple methods for quantifying mutagenic heterocyclic aromatic amines in food products. PubMed: Liquid chromatographic-electrochemical determination of ethylenethiourea in foods by revised official method. PubMed: Liquid chromatographic-atomic absorption spectrophotometric method for determination of methyl mercury in seafood: collaborative study. PubMed: Improved method for partition of organophosphate pesticide residues on a solid phase partition column. PubMed: The simultaneous determination of diacetoxyscirpenol and T-2 toxin in fungal cultures and grain samples by capillary gas chromatography. PubMed: HPLC determination of N-nitrosomethylurea in biological fluids by reaction with 4-nitrothiophenol. PubMed: Polyamide-kieselguhr thin-layer chromatography of yellow food dyes. PubMed: [A view on the standard of diatomaceous earth as food additives].