VOCs POLLUTANTS DETERMINATION BY GC-MS
Pages 125-134
Monica Culea, O. Cozar
Abstract
Some important VOCs pollutants in drinking water are trihalomethanes, chlorinated by-products resulting
from the reaction of chlorine with different natural organic matter in water. Different analytical methods for
trihalomethanes determination in drinking water are described. VOCs as chloroform, bromodichloromethane,
dibromochloromethane and bromoform were determined by four different techniques: liquid-liquid
extraction-gas chromatography-mass spectrometry (LLE-GC-MS), headspace-gas chromatography-mass
spectrometry (headspace-GC-MS), purge and trap-gas chromatography-mass spectrometry (purge and trap-
GC-MS); and headspace extraction-gas chromatography-electron capture detection (headspace-GC-ECD).
The quantitative methods were validated and applied for distribution systems control and treatment
optimization studies.