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Electron capture negative ion

Stemmier, E.A. and Hites, R.A., Electron Capture Negative Ion Mass Spectra of Environmental Contaminants and Related Compounds, VCH, Weinheim, Germany, 1988. [Pg.452]

Wagner, S.L., L.R. Durand, R.D. Inman, U. Kiigemagi, andM.L. Deinzer. 1991. Residues of pentachlorophenol and other chlorinated contaminants in human tissues analysis by electron capture gas chromatography and electronic capture negative ion mass spectrometry. Arch. Environ. Contam. Toxicol. 21 596-606. [Pg.1234]

Yu and Bayne [58] differentiated different aroclors in soil using linear discrimination and analyses by electron capture negative ion chemical ionization mass spectrometry. [Pg.174]

The electron capture negative ion chemical ionization mass spectrometric method [58] discussed in section 5.6.1.6 for the determination of polychlorobiphenyls in soils has also been applied to sludges. [Pg.179]

All the compounds studied exhibited M accompanied by intense [M — NO2]- fragment ions in their electron capture negative ion chemical ionization spectra. Additional ions were of low intensity101. [Pg.285]

High-resolution gas chromatography/electron capture negative ion high-resolution mass spectrometry (HRGC-EC-NI-HRMS) has been used for quantifying chloroalkanes in environmental samples [718]. [Pg.89]

Oehme, M. Quantification of fg-pg Amounts by Electron Capture Negative Ion Mass Spectrometry - Parameter Optimization and Practical Advice. Fresenius J. Anal Chem. 1994, 350, 544-554. [Pg.353]

Stemmler EA, Hites RA. 1987. The electron capture negative ion mass spectra of 2,6-dinitroaniline and 2,4-dinitrophenol herbicides and related nitrobenzene derivatives. Biomed Environ Mass Spectrom 14 417-434. [Pg.126]

Electron-capture negative-ion mass spectrometry 1995 ECNIMS 20 [26, p. 60]... [Pg.29]

Kok RM, Howells DW, van den Heuvel CC, Guerand WS, Thompson GN, Jakobs C (1993) Stable isotope dilution analysis of GABA in CSF using solvent extraction and electron-capture negative-ion mass fragmentography. J Inherit Metab Dis 16 508-512... [Pg.127]

Stellaard F, ten Brink HJ, Kok RM, van den Heuvel L, Jakobs C (1990) Stable isotope dilution analysis of very long chain fatty acids in plasma, urine and amniotic fluid by electron capture negative ion mass fragmentography. Clin Chim Acta 192 33-144... [Pg.232]

Fig. 10 Gas chromatography-electron-capture negative-ion high-resolution mass spectrometry multiple-ion chromatogram (sum of penta-octachlorobornanes) of a sediment sample from the Mississauga Basin of Lake Ontario (2-3 cm depth) showing predominance of B6-923 and B7-1001 [84]. Other congener identities are defined in ref [84]. [Reproduced with permission from SETAC]... Fig. 10 Gas chromatography-electron-capture negative-ion high-resolution mass spectrometry multiple-ion chromatogram (sum of penta-octachlorobornanes) of a sediment sample from the Mississauga Basin of Lake Ontario (2-3 cm depth) showing predominance of B6-923 and B7-1001 [84]. Other congener identities are defined in ref [84]. [Reproduced with permission from SETAC]...
Low pressures (10 6 torr) of a reagent gas may be introduced during the delay between ion formation and excitation to provide more selective Cl reactions, such as hydrogen/deuterium exchange reactions (18) or to provide a source of low energy electrons for electron capture negative ion Cl reactions (53, 54). As in the case of "self-CI", the extent of these Cl reactions may be controlled by changing the delay time between ion formation and excitation. [Pg.8]

Iodinated aliphatic compounds Mel, Etl Electron capture (negative ion hydration and photodetachment) [283]... [Pg.301]

Hunt, D. F., and Crow, F. W. (1978). Electron capture negative ion chemical ionisation mass spectrometry. Anal. Ckem. 50, 1781-1784. [Pg.157]

In addition to an increase in the volatility of the analytes, derivatization may also bring about an enhancement in the sensitivity of detection. This is particularly relevant with fluorine-containing reagents (perfluorobenzylation, trifluoroacetylation, heptafluorobutylation), followed by GC/MS analysis under electron-capture negative-ion Cl conditions. [Pg.270]

R.M. Black and R.W. Read, Detection of trace levels of thiodiglycol in blood, plasma and urine using gas chromatography-electron capture negative ion chemical ionisation mass spectrometry, J. Chromatogr., 449, 261-270 (1988). [Pg.428]

The regioselective chloride loss from regiospecifically chlorine-37 enriched dichloro-, trichloro-, tetrachloro- and pentachlorodibenzofurans (149) was investigated under electron capture negative-ion chemical ionization conditions334. [Pg.256]

Chlorine-37 labelled trichlorodibenzofurans have been synthesized as shown in equations 144-146. The 37Cl-labelled PCDBFs have been synthesized to identify the labile chlorines of PCDBFs under electron-capture negative-ion mass-spectrometry conditions and to develop a convenient analytical method to study the above class of compounds in a more controlled way296. [Pg.466]

Ahnoff M, Persson BA (1990) Chromatography of calcium channel blockers. J Chromatogr 531 181-213 Review Carvalho M, Oliveira CH, Mendes GD et al. (2001) Amlodip-ine bioequivalence study quantification by liquid chromatography coupled to tandem mass spectrometry. Bio-pharm Drug Dispos 22 383-390 Fischer C, Heuer B, Heuck K, Eichelbaum M (1986) Quantification of nitrendipine by stable isotope dilution and electron-capture negative ion chemical ionization. Biomed Environ Mass Spectrom 13 645-650... [Pg.640]


See other pages where Electron capture negative ion is mentioned: [Pg.1456]    [Pg.459]    [Pg.195]    [Pg.353]    [Pg.462]    [Pg.150]    [Pg.158]    [Pg.231]    [Pg.326]    [Pg.1456]    [Pg.118]    [Pg.136]    [Pg.232]    [Pg.87]    [Pg.204]    [Pg.214]    [Pg.8]    [Pg.9]    [Pg.33]    [Pg.222]   
See also in sourсe #XX -- [ Pg.231 ]




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Electron capture negative ion mass spectrometry

Electron negative

Gas chromatography/electron-capture negative-ion chemical ionization

Ion negative ions

Negative ions

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