High pressure liquid chromatography and

Francesconi, K.A., P. Micks, R.A. Stockton, and K.J. Irgolic. 1985. Quantitative determination of arsenobe-taine, the major water-soluble arsenical in three species of crab, using high pressure liquid chromatography and an inductively coupled argon plasma emission spectrometer as the arsenic-specific detector. Chemosphere 14 1443-1453. 

The P in HPLC is sometimes referred to as pressure, as in high-pressure liquid chromatography, and at other times performance. 

Donahue, E. V., McCann, )., and Ames, B. N. Detection of Mutagenic Impurities in Carcinogens and Noncarcinogens by High-Pressure Liquid Chromatography and The Salmonella/Mlcrosome Test , Cancer Research (1978) 38, 431. 

Zhang, L., Freitas, MA., Wickham, J., Parthun, M.R., Klisovic, M.I., Marcucd, G. and Byrd, J.C. (2004) Differential expression of histone post-translational modifications in acute myeloid and chronic lymphocytic leukemia determined by high-pressure liquid chromatography and mass spectrometry. Journal of the American Society for Mass Spectrometry, 15, 77-86. 

Spencer, G. F., Plattner, R. D., and Miwa, T. (1977). Jojoba oil analysis by high pressure liquid chromatography and gas chromatography/mass spectrometry. J. Am. Oil Chemists Soc. 54,187-189. 

GA Perfetti, FL Joe Jr, T Fazio. Reverse phase high pressure liquid chromatography and fluorescence detection of ethoxyquin in milk. J Assoc Off Anal Chem 66 1143-1147, 1983. 

I Stober, HR Schulten. Combined application of high-pressure liquid chromatography and field desorption mass spectrometry for the determination of biocides of the phenylurea and carbamate type in surface water. Sci Total Environ 16 249-262, 1980. 

The model phosphonamidothioate 1 , incorporating the essential features of the desired inhibitor 4, was prepared from methylphos-phonothioic dichloride in two steps. The two diastereomers of the diester 15 were separated by high pressure liquid chromatography and individually deprotected with base to give pure and lgg. 

H. A. Adams, B. Weber, M. B. Bachmann, M. Guerin, and G. Hempelmann, The simultaneous determination of ketamine and midazolam using high pressure liquid chromatography and UV detection (HPLC/UV), Anaesthesist, 47 619 (1992). 

A wide array of laboratory techniques and instrumentation is used in forensic studies. This includes ultraviolet, infrared, and visible spectrophotometry neutron activation analysis gas chromatography and mass spectrophotometry high pressure liquid chromatography and atomic absorption spectrophotometry. The techniques and instrumentation chosen depend on the type of sample or substance to be examined. 

Lehmann, W. D., Zhesbald, N., and Heinrich, H. C. (1981). Assay for plasma free phenylalanine and tyrosine by high-pressure liquid chromatography and field desorption mass spectrometry and its application to an in vivo study of the phenylalanine hydroxylat-ing system in man. Biomed. Mass Spectrom. 8, 598-605. 

Neutral selenium rings Se have been studied in the vapor phase by mass spectroscopy, in solution by high-pressure liquid chromatography, and in the solid state by Raman spectroscopy and X-ray crystallography. 

GC- and LC-MS (Fig. 2), although others have also used other techniques including Fourier transform infrared spectroscopy, thin layer chromatography, high-pressure liquid chromatography, and Raman spectroscopy. The major techniques as judged by current number of publications will be discussed below. 

The oil shale of the Julia Creek deposit has been shown to contain a very complex mixture of vanadium porphyrin compounds. Several groups of compounds were isolated by column chromatography and high pressure liquid chromatography and examined by ultra-violet-visible spectroscopy, insertion probe, fast atom bombardment and field desorption mass spectrometry. These groups of compounds were found to consist of several homologous series, and included some compounds tentatively identified as phylloerythrin and chlorin derivatives. 

In recent years, several techniques have been developed for mass spectrometry, whereby samples are ionized and analysed from a condensed phase, without prior volatilization. These desorption techniques have permitted the extension of mass spectrometric analyses to sulfate and glutathione conjugates, as well as to underivatized and labile glucuronic acid conjugates. Primary among these techniques are field desorption 6, plasma desorption (7), laser desorption (8), fast atom bombardment (or secondary ion mass spectrometry with a liquid sample matrix) ( ) and thermospray ionization ( O). The latter can also serve to couple high pressure liquid chromatography and mass spectrometry for analysis of involatile and thermally labile samples. 

Hanigan, M. H., Townsend, D. M., Deng, M., Marto, J. A., MacDonald, T. J. High pressure liquid chromatography and mass spectrometry characterization of the nephrotoxic biotransformation products of cisplatin. Drug Metab Dispos 2003, 31, 705-713. 

JF Sayegh. A simplified radioimmunoassay of plasma nortriptyline in depressed patients compared with high pressure liquid chromatography and gas liquid chromatography. Neurochem Res 11 193, 1986. 

K. K. Chan, D. D. Giannini, J. A. Staroscik, and W. Sadee, 5-Azacytidine hydrolysis kinetics measured by high-pressure liquid chromatography and 13C-NMR spectroscopy, J. Pharm. Sci. 68, 807- 812 (1979). 

The products from cumene hydroperoxide decomposition induced by organic sulfur compounds were determined by quantitative NMR except for phenol by high-pressure liquid chromatography and cumene hydroperoxide by iodometric titration (16). Cumyl alcohol is produced in the initial oxidation of sulfenic acid to sulfonic acid, and subsequently most of it is converted to a-methylstyrene as shown in Table II. The major products (40-45%) are phenol and acetone consistent with an acid-catalyzed decomposition of cumene hydroperoxide. Considerable... 

Joos, B. Ledergerber, B. Flepp, M. Bettex, J.-D. Liithy, R. Siegenthaler, W. Compeuison of high-pressure liquid chromatography and bioassay for determination of ciprofloxacin in serum and urine. 

Cooper, M.J. and Anders, M.W., 1974. Determination of long chain fatty acids as 2-napthacyl esters by high pressure liquid chromatography and mass spectrometry. Anal. Chem., 46 1849-1852. 

Francesconi, K.A., Micks, P., Stockton, R.A. and Irgolic, K.J. (1985). Quantitative Determination of Arsenobetaine, the Major Walter-Soluble Arsenical in Three Species of Crab. Using High Pressure Liquid Chromatography and an Inductively Coupled Argon... 

Recently, eight strains of Pr. reticulatum, isolated from the Mutsu bay (Japan), were cultured in the laboratory, and analyzed by fluorometric high pressure liquid chromatography and LC/MS methods for YTX production and composition. All strains tested were confirmed to produce YTX, even if the toxin amount differed from strain to strain. None of them was shown to produce known YTX analogs. 

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