ELECTRON-CAPTURE NEGATIVE-ION (ECNI) MASS-SPECTROMETRY OF COMPLEX-MIXTURES OF CHLORINATED DECANES AND DODECANES - AN APPROACH TO ECNI MASS-SPECTRA OF CHLORINATED PARAFFIUS IN TECHNICAL MIXTURES

Citation
O. Froescheis et K. Ballschmiter, ELECTRON-CAPTURE NEGATIVE-ION (ECNI) MASS-SPECTROMETRY OF COMPLEX-MIXTURES OF CHLORINATED DECANES AND DODECANES - AN APPROACH TO ECNI MASS-SPECTRA OF CHLORINATED PARAFFIUS IN TECHNICAL MIXTURES, Fresenius' journal of analytical chemistry, 361(8), 1998, pp. 784-790
Citations number
23
Categorie Soggetti
Chemistry Analytical
ISSN journal
09370633
Volume
361
Issue
8
Year of publication
1998
Pages
784 - 790
Database
ISI
SICI code
0937-0633(1998)361:8<784:EN(MOC>2.0.ZU;2-P
Abstract
The electron capture negative ion (ECNI) mass spectra of two complex m ixtures of polychlorinated decanes (PCDe) and polychlorinated dodecane s (PCDo) are presented. The number of isomers in these mixtures is sti ll high but is drastically reduced in comparison to technical products of chlorinated paraffins (CP), due to their fixed chain length. As a result, the mass spectra are simplified and less complex. Different mo des of negative ion formation were observed in the spectra of the PCDe and PCDo. [M+Cl](-) adduct ions were the most abundant ions in the sp ectra of lower chlorinated molecules. Higher chlorinated isomers forme d prominently [M-Cl](-) and [M-HCl](-) fragments besides [M+Cl](-). Po ssible consequences fur the determination of chlorinated paraffins by ECNI-MS that result from the variation in ion formation are addressed.