GCMS techniques using chemical ionization have been em-ployed to characterize by
molecular weight composition, five FDA reference Aroclor standards. The results Indicated …

Positive Ion chemical ionization GC/MS was evaluated for the quantitation of
polychloroblphenyls (PCBs) using 10 or less selected PCB standards. Positive Ion chemical …

A quadrupole ion trap mass spectrometer coupled with a gas chromatograph was used to
study the reactions of two co-eluting polychlorinated biphenyl (PCB) compounds, congener …

Software was developed to perform fully automated Identifi-cation and measurement of
polychlorinated biphenyls (PCBs) In environmental sample extracts analyzed with capillary …

The responses of selected‐ion monitoring of electron impact mass spectra and selected‐
reagent‐ion chemical ionization mass spectra of polychlorinated biphenyls (PCBs), relative …

The polychlorinated biphenyls are a difficult-to-analyze class of environmental contaminants
because of the large number of possible individual isomers and their physical and chemical …

A procedure to measure concentrations of polychlorinated biphenyls (PCBs) by using nine
selected PCB congeners as concentration calibration standards was developed and ap …

This report describes the utilization of gas-liquid chromatography coupled with chemical
ionization and electron impact mass spectrometry for the characterization and isomeric …

A method for determination of polychlorinated biphenyls (PCBs) in environmental and
biological materials has been developed. This method includes rapid chromatography …

The H2 and CH4 chemical ionization (Cl) mass spectra of selected polychlorinated biphenyl
isomers (PCBs) have been studied In detall. The H2 Cl mass spectra are shown to pro-vide …