[Determination of volatile organic compounds in drinking water by purge and trap gas chromatography/mass spectrometry].
OBJECTIVE
To establish a method for determination of volatile organic compounds in drinking water by purge and trap GC/MS.


METHODS
Volatile organic compounds in water were purged and trapped by Tekmar 3100, then desorbed and analyzed by GC/MS. Selective ion masses were used in quantitative measurement.


RESULTS
60 VOCs were separated and analyzed in 36 min. Within concentration range from 0 microg/L to 12 microg/L, the correlation coefficient for 51 target compounds was greater than 0.995. The method detection Limits were in the range from 0.021 microg/L to 0.70 microg/L. Recoveries were between 90% and 120%. RF RSD was less than 30%.


CONCLUSIONS
Purge and trap gas chromatography/ mass spectrometry is a sensitive and accurate method for determination of volatile organic compounds in drinking water.
Luo
Tian
T
Institute for Environment and Health Related Product Safety, China CDC, Beijing 100021, China.
Zhou
Zhi-rong
ZR
Lin
Shao-bin
SB
D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D012680:Sensitivity and Specificity; D055549:Volatile Organic Compounds / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis*
D055549:Volatile Organic Compounds; D014874:Water Pollutants, Chemical