Gas chromatography, isotope

FTICR. Fourier-transform ion cyclotron resonance GC/IRMS. gas chromatography isotope ratio mass spectrometry... [Pg.445]

Figure 15.12 GC-GC chromatogram of a natural cw-3-hexen-l-ol fraction. Peak identification is as follows 1, ethyl-2-methylbutyrate 2, traw-2-hexenal 3, 1-hexanol 4, cw-3-hexen-l-ol 5, tro 5-2-hexen-l-ol. Adapted from Journal of High Resolution Chromatography, 15, S. Nitz et al.. Multidimensional gas chromatography-isotope ratio mass specti ometry, (MDGC-IRMS). Part A system desaiption and technical requuements , pp. 387-391, 1992, with permission from Wiley-VCH.

$Figure 15.12 GC-GC chromatogram of a natural cw-3-hexen-l-ol fraction. Peak identification is as follows 1, ethyl-2-methylbutyrate 2, traw-2-hexenal 3, 1-hexanol 4, cw-3-hexen-l-ol 5, tro 5-2-hexen-l-ol. Adapted from Journal of High Resolution Chromatography, 15, S. Nitz et al.. Multidimensional gas chromatography-isotope ratio mass specti ometry, (MDGC-IRMS). Part A system desaiption and technical requuements , pp. 387-391, 1992, with permission from Wiley-VCH.$

Binnert, C., Laville, M., Pachiaudi, C., Rigalleau, V. and Beylot, M. (1995) Use of gas chromatography isotope ratio mass spectrometry to study triglyceride metabolism in humans. Lipids 30, 869 873. [Pg.424]

Demmelmair, H. and Schmidt, H. L. (1993) Precise 813C determination in the range of natural abundance on amino acids from protein hydrolysates by gas chromatography isotope ratio mass spectrometry. Isotopenpraxis 29, 237 250. [Pg.426]

Scrimgeour, C. M., Begley, I. S. and Thomason, M. L. (1999) Measurement of deuterium incorporation into fatty acids by gas chromatography/isotope ratio mass spectrometry. Rapid Communications in Mass Spectrometry 13, 271. [Pg.431]

Silfer, J. A., Engel, M. H., Macko, S. A. and Jumeau, E. J. (1991). Stable carbon isotope analysis of amino acid enantiomers by conventional isotope ratio mass spectrometry and combined gas chromatography isotope ratio massspectrometry. Analytical Chemistry 63, 370 374. [Pg.431]

Focant JF, Reiner E, MacPerson K, Kolic T, Sjodin A, Patterson DG, Reese SL, Dorman FL, Cochran J Measurement of PCDDs, PCDFs, and non-ortho-PCBs by comprehensive two-dimensional gas chromatography-isotope dilution time-of-flight mass spectrometry (GC x CG-IDTOFMS). Talanta 63,1231-1240, 2004. [Pg.335]

Nitz, S., Weinreich, B., Drawer F. (1992) Multidimensional gas chromatography-isotope ratio mass spectrometry (MDGC-IRMS) High Resolut. Chromatogr. 15 387-391. [Pg.350]

Capillary Gas Chromatography—Isotope Ratio Mass Spectrometry Techniques 395 Table "VIA IRMS online coupling techniques [52]... [Pg.395]

Lamrini R, Crouzet JR, Francina A, Guilluy R, Steghens JP, Brazier JL (1994) Evaluation of OH radical production using 13C02 gas chromatography-isotope ratio mass spectrometry. Anal Biochem 220 129-136... [Pg.73]

For example, little is known about the isotopic composition of formaldehyde in the atmosphere. Formaldehyde is a chemical intermediate in hydrocarbon oxidation. The carbon (8 C) and hydrogen (8D) isotopic composition of atmospheric formaldehyde is analyzed using continuous flow gas chromatography isotope ratio mass spectrometry." Isotope ratios were measured using GC-IRMS (Finnigan MAT 253 stable isotope ratio mass spectrometer, single-sector field with electron impact ion source and multiple ion collection) with a precision of 1.1 and 50%(lo ) for 8 C and 8D, respectively. The accuracy of the online continuous flow isotope technique was verified by calibrating three aliquots of the gas phase standard via the offline dual inlet IRMS technique. The concentration of formaldehyde in ambient air was determined on IRMS major ion peak areas (i.e., mass 44 for 8 C and mass 2 for 8D)." ... [Pg.220]

Sephton M. and Gilmour 1. (2001a) Pyrolysis-gas chromatography-isotope ratio mass spectrometry of macromolecular material in meteorites. Planet. Space Sci. 49, 465-471. [Pg.291]

Rieley G., Collister J. W., Stern B., and Eglinton G. (1993) Gas chromatography/isotope ratio mass spectrometry of leaf wax n-aUcanes from plants of differing carbon dioxide metabolisms. Rapid Commun. Mass. Spectrom. 7, 488-491. [Pg.3979]

S. Sewenig, U. Hener, A. Mosandl (2003) Online determination of H/ H and C/ C isotope ratios of cinnamaldehyde from different sources using gas chromatography isotope ratio mass spectrometry. Eur Eood Res Technol 217, 444-448... [Pg.656]

C. Ruff, K. Hor, B. Weckerle, T. Konig, P. Schreier (2002) Authenticity assessment of estragole and methyl eugenol by on-line gas chromatography-isotope ratio mass spectrometry. J Agric. Food Chem. 50, 1028-1031... [Pg.658]

V. Karl, A. Dietrich, A. Mosandl (1994) Gas chromatography - isotope ratio mass spectrometry measurements of some carboxylic esters from different apple varieties. Phytochem. Anal. 5, 32-37... [Pg.660]

GC GC/irmMS Gas chromatograph, gas chromatography Gas chromatography / isotope ratio monitoring mass spectrometry... [Pg.475]

Roberts, B. J., Russ, M. E., and Ostrom, N. E., Rapid and precise determination of the of dissolved and gaseous dioxygen via gas chromatography-isotope ratio mass spectrometry. Environ. Sci. TechnoL, 34, 2337-2341, 2000. [Pg.259]

Such a method requires separate analyses of the reaction products for addition process this has usually been done by infrared spectroscopy ", gas chromatography isotopic dilution method " or nmr spectroscopy . Analysis of the unreacted fraction of the competing reactants may be used as a substitute for analysis of products, when the latter (or one of them) are slowly decomposing. [Pg.91]

Eocant et al. (2003) have described a rapid method of analyzing selected PCBs in human serum by gas chromatography-isotope dilution time-of-flight mass spectrometry. Analysis of soil and house dust samples for PCBs by enzyme-linked immunosorbent assay (ELISA) has been described (Chuang et al. [Pg.859]

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