Electron capture negative ion mass spectrometry

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. 

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. 

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

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. 

HRGC/ECNI/MS (/HRMS) =high resolution gas chromatography/electron capture negative ion/mass spectrometry (high resolution mass spectrometry). 

Tomy GT, Stern GA, Muir DCG, Fisk AT, Cymbalisty CD, Westmore )B (1997) Quantifying C 0-C13 polychloroalkanes in environmental samples by high resolution gas chromatography/ electron capture negative ion mass spectrometry. Anal Chem 69 2762-2771... 

Laramee, J. A. Mazurkiewicz, P. Berkout, V. and Deinzer, M. L. Discrete Electron Capture Negative Ion Mass Spectrometry in Encyclopedia of Analytical Chemistry. New York Wiley, 2000. 

Brumley, W.C., C.M. Brownrigg, and A.H. Grange. 1993. Determination of toxaphene in soil by electron-capture negative ion mass spectrometry after fractionation by high-performance gel permeation chromatography. J. Chromatogr. 633 177-183. 

Characteristic travel distance Environmental bioaccumulation potential Electron-capture negative ion mass spectrometry Estimation programs interface (EPI) suite European... 

Gas chromatography-electron capture negative-ion mass spectrometry is now possible at the zeptomole level for suitable derivatives. When the GC-MS system is tuned precisely for octafluoronaphthalene and four products derived from DNA adducts, the detection limit for N N -bis(pentafluorobenzyl)-5-[(pentafluorobenzy-loxy)methyl]uracil is 200 zmol, with response linear to 22 amol [163], a clear indication of the potential sensitivity achievable by GC-MS. 

The quantitative determination by mass spectrometry of 2- and 3-hydroxy fatty acids in complex food matrices and as chemical markers for the detection of endotoxins derived from Gram-negative bacteria requires their transformation into the corresponding methyl esters and, often, the additional derivatization of hydroxyl groups in trimethylsilyl ethers or other derivatives. In a research work on the content of 2- and 3-HSAs in bovine milk, deuterated hydroxy fatty acids have been particularly useful as internal standards for mass analyses. [20] For this study, the methyl ester of 2-HSA-9,10-J2 was prepared from methyl 2-hydroxy-9-cis-octadecenoate by deuteration in the presence of Wilkinson s catalyst. The hydroxy group was transformed into the pentafluorobenzoyl ester and the product was used as standard in gas chromatography with electron-capture negative ion mass spectrometry. 

Jenske R., Vetter W. Gas chromatography/electron-capture negative ion mass spectrometry for the quantitative determination of 2- and 3-hydroxy fatty acids in bovine mUk fat. Journal of Agricultural and Food Chemistry, 56 5500-5505 (2008). 

Stenunler, E.Tk. Hites, R.A. The Fragmentation of N ative Ions Generated by Electron Capture Negative Ion Mass Spectrometry A Review with New Data. Biomed. Environ. Mass Spectrom. 1988, 77,311-328. 

Electron-Capture Negative-Ion Mass Spectrometry (ECNI-MS)... 

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