Liquid chromatography-mass spectrometry quantification

Weller, P. and Breithaupt, D.E., Identification and quantification of zeaxanthin esters in plants using liquid chromatography-mass spectrometry, J. Agric. Food Chem., 51, 7044, 2003. [Pg.237]

Breithaupt DE. 2004. Identification and quantification of astaxanthin esters in shrimp (Pandalus borealis) and in a microalga (Haematococcus pluvialis) by liquid chromatography-mass spectrometry using negative ion atmospheric pressure chemical ionization. J Agric Food Chem 52 3870-3875. [Pg.212]

Recent studies, including the use of Microtox and ToxAlert test kits [55,56], were carried out for the determination of the toxicity of some non-ionic surfactants and other compounds (aromatic hydrocarbons, endocrine disruptors) before implementation on raw and treated wastewater, followed by the identification and quantification of polar organic cytotoxic substances for samples with more than 20% inhibition. Furthermore, the study of their contribution to the total toxicity was obtained using sequential solid-phase extraction (SSPE) before liquid chromatography-mass spectrometry (LC-MS) detection. This combined procedure allows one to focus only on samples containing toxic substances. [Pg.263]

Kratzsch C, Peters FT, Kraemer T, Weber AA, Maurer HH. 2003. Screening, library-assisted identification and validated quantification of fifteen neuroleptics and three of their metabolites in plasma by liquid chromatography/ mass spectrometry with atmospheric pressure chemical ionization. J Mass Spectrom 38 283. [Pg.172]

Shackleton CHL, Kletke C, Wudy S, Pratt JH (1990) Dehydroepiandrosterone sulfate quantification in serum using high-performance liquid chromatography/mass spectrometry and a deuterated internal standard a technique suitable for routine use or as a reference method. Steroids 55 472-478... [Pg.604]

Internal reflection spectroscopy is widely applied for on-line process control. In this type of application, the chemical reactor is equipped with an internal reflection probe or an IRE. The goal of this type of application is the quantification of reactant and/or product concentrations to provide real-time information about the conversion within the reactor. In comparison with other analytical methods such as gas chromatography, high-pressure liquid chromatography, mass spectrometry, and NMR spectroscopy, ATR spectroscopy is considerably faster and does not require withdrawal of sample, which can be detrimental for monitoring of labile compounds and for some other applications. [Pg.242]

Wemer, U., Wemer, D., Mundkowski, R., Gillich, M., and Brune, K. (2001). Selective and rapid liquid chromatography-mass spectrometry method for the quantification of rofecoxib in pharmacokinetic studies with humans. J. Chromatogr. B Biomed. Sci. Appl. 760 83-90. [Pg.83]

Flarakos J, Luo W, Aman M, Svinarov D, Gerber N, Vouros P (2004) Quantification of risperidone and 9-hydroxyrispeiidone in plasma and saliva from adult and pediatric patients by liquid chromatography-mass spectrometry. J Chromatogr A 1026(1—2) 175—183... [Pg.193]

Maurer HH (2005) Advances in analytical toxicology the current role of liquid chromatography-mass spectrometry in drug quantification in blood and oral fluid. Anal Bioanal Chem 381 (1) 110-118. doi 10.1007/s00216-004-2774-z... [Pg.194]

Quantification of TKIs in patients plasma samples is at present principally performed by liquid chromatography-mass spectrometry (LC-MS) after suitable plasma pretreatment, which implies most generally a protein precipitation with an organic... [Pg.210]

Rochat B et al (2008) Imatinib metabolite profiling in parallel to imatinib quantification in plasma of treated patients using liquid chromatography-mass spectrometry. J Mass Spectrom... [Pg.243]

John H, Walden M, Schafer S, Genz S, Forssmann WG (2004) Analytical procedures for peptide quantification in pharmaceutical research by liquid chromatography-mass spectrometry. Anal Bioanal Chem 378 883-897... [Pg.346]

Liberato et al. reported the separation and quantification of acetycholine and choline by thermospray liquid chromatography-mass spectrometry... [Pg.99]

FancinUi, G. et al. Quantification of gluten exorphin A5 in cerebrospinal fluid by liquid chromatography—mass spectrometry. J. Chmmatogr. B. 2006, 833, 204-209. [Pg.96]

Fanciulli, G. et al. Liquid chromatography-mass spectrometry assay for quantification of gluten exorphin B5 in cerebrospinal fluid. J. Chromatogr. B. 2007, 852,485-490. [Pg.173]

Wang, Y. Xu, X. van Lieshout, M. West, C.E. Lugtenburg, J. Verhoeven, M.A. Creemers, A.F.L. Muhilal and van Breemen, R.B. 2000. A liquid chromatography-mass spectrometry method for the quantification of bioavailability and bioconversion of P-carotene to retinol in humans. Anal. Chem. 72 4999-5003. [Pg.148]

Suzuki, T, Jin, T, Shirota, Y, Mitsuya, T, Okumura, Y, and Kamiyama, T. 2005b. Quantification of lipophilic toxins associated with diarrhetic shellfish poisoning (DSP) in Japanese bivalves by liquid chromatography-mass spectrometry (LC-MS) and comparison with mouse bioassay (MBA) as the official testing method in Japan. Fish Sci 71, 1370-1378. [Pg.185]

Maurer, H.H., Tenberken, O., Kratzsch, C., Weber, A., Peters, F.T. Screening for library-assisted identification and fully validated quantification of 22 beta-blockers in blood plasma by liquid chromatography-mass spectrometry with atmospheric pressure chemical ionization. J. Chromatogr. A 1058, 169-181 (2004)... [Pg.329]

John, H., Walden, M., Schafer, S., Genz, S., Forssmarm, W.G. (2004). Analytical procedures for quantification of peptides in pharmaceutical research hy liquid chromatography mass spectrometry. Anal. Bioanal. Chem. 378 883-97. [Pg.786]

Quantification of Endogenous Retinoic Acid in Human Plasma by Liquid Chromatography/Mass Spectrometry... [Pg.166]

Identification and quantification of low molecular weight and volatile phenols is usually performed by Gas Chromatography and Mass Spectrometry (GC-MS). For analysis and structural characterization of more polar compounds such as polyphenols, liquid-phase and Liquid Chromatography Mass Spectrometry (LC-MS) and Multiple Mass Spectrometry (MS/MS and MSn) techniques are used (Niessen and Tinke, 1995 de Hoffmann, 1996 Abian, 1999 Flamini et al., 2007). [Pg.82]

Deters M, Kirchner G, Resch K, Kaever V. Simultaneous quantification of siroUmus, everolimus, tacrolimus and cyclosporine by liquid chromatography-mass spectrometry. Clin Chem Lab Med 2002 40 285-... [Pg.187]

Wall, D.B. Finch, J.W. Cohen, S.A. Quantification of Codeine by Desorption/lonization on Silicon Time-of-Flight Mass Spectrometry and Comparisons with Liquid Chromatography/Mass Spectrometry, Rapid Commun. Mass Spectrom. 18, 1403-1406 (2004). [Pg.537]

Dizdaroglu, M., Jaruga, P., and Rodriguez, H. (2001) Identification and quantification of 8,5 -cyclo-2 -deoxyadenosine in DNA by liquid chromatography mass spectrometry. [Pg.78]

Pedersen SN, Lindholst C (1999) Quantification of the xenoestrogens 4- tert. -octylphenol and bisphenol A in water and in fish tissue based on microwave assisted extraction, solid-phase extraction and liquid chromatography-mass spectrometry. J Chromat A 864, 17-24. [Pg.434]

Moor, M.J. Hashed, M.S. Kalhom, T.F. Levy, R.H. Howald, W.N. Application of thermospray liquid chromatography-mass spectrometry to the simultaneous quantification of tracer concentrations of isotopically labelled carbamazepine epoxide and steady-state levels of carbamazepine and carbamazepine epoxide. J.Chromatogr, 1989, 474, 223—230... [Pg.250]

Esteban, N.V. Yergey, A.L. Liberate, D.J. Lougfalin, T. Loriaux, D.L. Stable isotope dilution method using thermospray liquid chromatography/mass spectrometry for quantification of daily cortisol production in humans. Biomed.Environ.Mass.Spectrom., 1988, 15, 603-608 [thermospray LC-MS] Sheikh, S.U. Touchstone, J. HPLC of steroids in non-aqueous mobfle phase at subambient temperature. J.Liq.Chromatogr., 1987, 10, 2489-2496 [column temp -50 simultaneous cortisone, desoxycorticos-terone, estradiol, estrone]... [Pg.739]

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