Chromatography, Gas

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  Subject Areas on Research

  • A novel silver-sulfoethyl cellulose column for purification of ethynyl steroids from biological fluids. 
  • A re-examination of the gas chromatographic determination of -d-propoxyphene. 
  • Accumulation of glycolipids containing N-acetylglucosamine in erythrocyte stroma of patients with congenital dyserythropoietic anemia type II (HEMPAS). 
  • Alkaloids of American species of Erythrina. 
  • Alkaloids of some African, Asian, Polynesian and Australian species of Erythrina. 
  • Are mycoplasma membrane proteins affected by variations in membrane fatty acid composition? 
  • Blood levels after sublingual nitroglycerin. 
  • Cholesteryl esters in flue-cured tobacco. 
  • Clinical enflurane metabolism by cytochrome P450 2E1. 
  • Comparison of GC-MS and GC×GC-MS in the analysis of human serum samples for biomarker discovery. 
  • Detection of methanesulfonic acid in ethyl methanesulfonate. 
  • Determination of acrylamide in rat serum and sciatic nerve by gas chromatography-electron-capture detection. 
  • Determination of disopyramide and mono-N-desisopropyl-disopyramide in serum by gas-liquid chromatography with nitrogen-selective detection. 
  • Determination of hormonal steroid concentrations in biological extracts by high resolution mass fragmentography. 
  • Differences in the long chain (sphingoid) base composition of sphingomyelin from rats bearing Morris hepatoma 7777. 
  • Differential effects of modulation of docosahexaenoic acid content during development in specific regions of rat brain. 
  • Endotracheal lidocaine administration via an esophageal combitube. 
  • Extraction and determination by gas chromatography of S,S,S-tri-n-butyl phosphorotrithioate (DEF) in fish and water. 
  • Fetal translocation and metabolism of PAH obtained from coal fly ash given intratracheally to pregnant rats. 
  • Formation of flavorant-propylene Glycol Adducts With Novel Toxicological Properties in Chemically Unstable E-Cigarette Liquids. 
  • Ganglioside mapping of a human medulloblastoma xenograft. 
  • Genetics of a difference in cuticular hydrocarbons between Drosophila pseudoobscura and D. persimilis. 
  • Glycine and L-carnitine therapy in 3-methylcrotonyl-CoA carboxylase deficiency. 
  • Hepatitis C virus selectively perturbs the distal cholesterol synthesis pathway in a genotype-specific manner. 
  • Identification of metabolities of progesterone-4-14C in domestic sow urine. 
  • In vitro synthesis of steroids by a feminising adrenocortical carcinoma: effect of prolactin and other protein hormones. 
  • Isocoproporphyrin: nuclear-magnetic-resonance-and mass-spectral methods for the determination of porphyrin structure. 
  • Isolation, gas chromatography-mass spectrometry, and structures of new alkaloids from Erythrina folkersii Krukoff and Moldenke and Erythrina salviiflora Krukoff and Barneby. 
  • Lipid peroxidation induced by shockwave lithotripsy. 
  • Measurement of diphenylhydantoin in 0.1-ml plasma samples: gas chromatography and radioimmunoassay compared. 
  • Measurement of felbamate by wide-bore capillary gas chromatography and flame ionization detection. 
  • Metabolism and distribution of norethynodrel in pregnant and nonpregnant mice. 
  • Metabolism of norethynodrel by rat liver. 
  • Metabolites of progesterone in urine compared with progesterone in ovarian venous plasma of the cycling domestic sow. 
  • Methotrexate-induced alterations in beta-oxidation correlate with cognitive abilities in children with acute lymphoblastic leukemia. 
  • Modified extraction procedure for gas-liquid chromatography applied to the identification of anaerobic bacteria. 
  • Neuroactive steroids, mood stabilizers, and neuroplasticity: alterations following lithium and changes in Bcl-2 knockout mice. 
  • Norethynodrel metabolites in human plasma and urine. 
  • Oxygenated norethindrone derivatives from incubation with beagle liver. Structure, synthesis, and biological activity. 
  • Pathogenesis of Cryptococcus neoformans is associated with quantitative differences in multiple virulence factors. 
  • Pharmacometabolomics of statin response. 
  • Photodegradation pathways of nonabrominated diphenyl ethers, 2-ethylhexyltetrabromobenzoate and di(2-ethylhexyl)tetrabromophthalate: identifying potential markers of photodegradation. 
  • Placental transport of free palmitic and linoleic acids in the guinea pig. 
  • Polycyclic aromatic hydrocarbons of coal fly ash: analysis by gas-liquid chromatography using nematic liquid crystals. 
  • Proceedings: Measurement of endogenous steroid levels in human breast tumours by mass fragmentography. 
  • Quantitative analysis of gas-phase formaldehyde molecular species at equilibrium with formalin solution. 
  • Recent advances in the analysis of polychlorinated biphenyls in environmental and biological media. 
  • Recent and innovative methods for detection of bacteremia and fungemia. 
  • Selected metastable peak monitoring: a new specific technique in quantitative gas chromatography mass spectrometry. 
  • Short duration exercise increases breath hydrogen excretion after lactulose ingestion: description of a new phenomenon. 
  • Suppression of a P450 hydroxylase gene in plant trichome glands enhances natural-product-based aphid resistance. 
  • The MMT bag for emission source sampling: design and evaluation. 
  • The SIT image Vidicon as a gas-phase fluorescence detector for gas chromatography. 
  • The field ionization spectra of some natural coumarins. 
  • The isolation of 20alpha- and 20beta-hydroxypregn-4-en-3-one from porcine corpora lutea. 
  • The metabolism of ethynodiol diacetate by rat and human liver. 
  • Thin-layer and gas--liquid chromatographic identification of neutral steroids in human and rat feces. 
  • Toluene degradation in the recycle liquid of biotrickling filters for air pollution control.