Multiple-detector responses or multiple-retention times: what is more informative for gas chromatography peak identification?
Multiple-separation and -detection are two approaches applied at the identification of analytes in chromatography. Using them depends on the physico-chemical properties and elemental content of the analytes. When physico-chemical properties are similar multiple-separation gives better opportunities for the identification. In this case, the efficiency of the columns is very important. When analytes contain some characteristic groups as--NO2, halogen, or nitrogen atoms then multiple-detection will be more useful. The sensitivity and/or selectivity of the detectors increase reliability of identification significantly.
Central Laboratory of Veterinary Control and Ecology, Iskarsko Shosse Str 5, 1528 Sofia, Bulgaria. clvce@netissat.bg
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Stoev
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Mihailova
D002849:Chromatography, Gas / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity