Development of a purge and trap continuous flow system for the stable carbon isotope analysis of volatile halogenated organic compounds in water.
A purge and trap (P&T) continuous flow system was developed in order to concentrate high volumes of water for trace analyses and stable carbon isotope measurements of volatile halogenated organic compounds (VHOCs) in seawater. The P&T parameters were evaluated regarding quality parameters, extraction efficiency and isotope fractionation. Precision (about 20%), linearity (>0.9676), and recoveries (between 75% and 99%) were reasonable within the large concentration range tested. Isotope fractionation was between 1 per thousand and 3 per thousand. Finally, the developed system was successfully applied to the quantitative and stable carbon isotope analysis of three water samples of different origin.
Auer
Nicole R
NR
Department of Marine Chemistry, Baltic Sea Research Institute Warnemünde, IOW, Seestrasse 15, 18119 Rostock, Germany.
Manzke
Bert U
BU
Schulz-Bull
Detlef E
DE
D002247:Carbon Isotopes / Q000032:analysis; D002849:Chromatography, Gas / Q000295:instrumentation / Q000379:methods*; D006846:Hydrocarbons, Halogenated / Q000032:analysis* / Q000737:chemistry; D015203:Reproducibility of Results; D014835:Volatilization; D014867:Water / Q000032:analysis* / Q000737:chemistry
D002247:Carbon Isotopes; D006846:Hydrocarbons, Halogenated; D014867:Water