[Determination of chloroform and carbon tetrachloride in residential air by capillary gas chromatography].
Wei Sheng Yan Jiu
; 40(2): 208-10, 2011 Mar.
Article
in Zh
| MEDLINE
| ID: mdl-21560312
ABSTRACT
OBJECTIVE:
To establish solvent desorption capillary gas chromatography method for determination of chloroform and carbon tetrachloride in residential air.METHODS:
The sample was absorbed by active carbon glass tube, then desorbed by Acetone and determined by Capillary Gas Chromatography.RESULTS:
Linear range of thismethod:
5.0 x 10(-4)-1.0 x 10(-1) mg/m3 for chloroform, 1.9 x 10(-4)-1.0 x 10(-2) mg/m3 for carbon tetrachloride. The sample could be stored in the active carbon glass tube for 7 days. The re-occurrence rate of this method is good. RSD is 0.41%-1.54% for chloroform, 0.31%-1.03% for carbon tetrachloride. Detection limit of thismethod:
1.5 x 10(-3) ng for chloroform, and 5.8 x 10(-4) ng for carbon tetrachloride. Recovery rate for different concentrations 88.5%-98.6% For chloroform, and 91.0%-99.0% for carbon tetrachloride. Sampling efficiency 93.7%-99.2% for chloroform, and 90.6%-99.2% for carbon tetrachloride. Other Volatile halogenated hydrocarbons with similar structures and similar nature in the residential air do not interfere the measurement.CONCLUSION:
The method was easy and quick, with high sensibility. It was applicable to monitor the chloroform and carbon tetrachloride in residential air.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Carbon Tetrachloride
/
Chloroform
/
Chromatography, Gas
/
Air Pollution, Indoor
/
Air Pollutants
Country/Region as subject:
Asia
Language:
Zh
Journal:
Wei Sheng Yan Jiu
Journal subject:
SAUDE PUBLICA
Year:
2011
Document type:
Article
Affiliation country:
China