Analysis of airborne carboxylic acids and phenols as their pentafluorobenzyl derivatives: gas chromatography/ion trap mass spectrometry with a novel chemical ionization reagent, PFBOH

Article Abstract:

A derivatization with pentafluorobenzyl bromide (PFBBr) and the utilization of capillary gas chromatography/ion trap mass spectrometry (GC/ITMS) enabled the characterization of airborne carboxylic acids. Pentafluorobenzyl alcohol (PFBOH) proved useful as a novel reagent gas for chemical ionization and mass spectra (CIMS) of pentafluorobenzyl derivatives. PFBOH gas at reduced pressure yielded pentafluorobenzyl ions, m/z=181, and the resulting CIMS where determined by the predominance of the [M=181]+ ions.

Air Pollution Control R&D, Mass Spectrometers, Carboxylic Acid Salts, Gas Chromatographs, Usage, Air pollution, Air pollution research, Pollution control research, Mass spectrometry, Gas chromatography, Carboxylic acids

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Speciation of organotin compounds, total tin, and major trace metal elements in poisoned human organs by gas chromatography-flame photometric detector and inductively coupled plasma-mass spectrometry

Article Abstract:

Researchers from the Chinese Academy of Science analyzed tissue from major organs of an organotin contaminated lard poisoning victim using gas chromatography-flame photometric detector and plasma-mass spectrometry. Results yielded concentrations of methyltin compounds ranging from 0.10-1.93 ug/g wet weight.

China, All Other Basic Organic Chemical Manufacturing, Industrial Organic Chemicals, Organotin Compounds, Chemical industry, Tin industry, Chinese Academy of Science

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Specific interactions of organic substances in size-exclusion chromatography

Article Abstract:

Researchers from the University of Karlsruhe, Germany used nonideal interactions between gel and sample in combination with UV absorption, fluorescence, dissolved organic carbon and electrical conductivity to interpret size-exclusion chromatogram of natural organic matter and lignisulfonic acids.

Germany, R&D NEC, Lignin Sulfonates, Soap and cleaning agents industry, Cleaning agents industry, Organic sulfur compounds, Karlsruhe, University of

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