[Detecting the isoflurane in the air of workplaces with chromatographic method].
OBJECTIVE
To establish a solvent desorption Gas chromatographic method for detecting the isoflurane in air of workplaces.


METHODS
This method is based on "Standardization of methods for determination of toxic substances in workplace air".


RESULTS
This method presents the linear relation with the minimum detectable limit 1.0 µg/ml and the minimum detectable concentration 0.07 mg/m(3). The precision (RSD) was 0.5% ∼ 5.0%, the mean dsorption efficiencies were 96.7% ∼ 98.9%, the absorption efficiencies were 92.1% ∼ 100%, the breakthrough volume was 3.7 mg isoflurane/100 mg active carbon. Other volatile organic solvents (Sevoflurane, Enflurane and Ethyl Alcohol) did not interfere the detection. The sample could be stored in the active carbon tube at least for 10 days.


CONCLUSIONS
This method is meet the requirement of GBZ/T 210.4-2008 "Guide for establishing occupational health standards-Part4: Determination methods of air chemicals in workplace" and is feasible for determining the isoflurane in the air of workplaces.
Shenzhen Prevention and Treatment Center for Occupational Diseases, Guangdong, China.
Wen
W
Zhang
Jin-min
JM
Cai
Tian-di
TD
Li
Jun-tao
JT
He
Shuang-feng
SF
Li
Jian-pei
JP
Yun
Yi-ran
YR
Lin
Juan
J
Yi
D000395:Air Pollutants, Occupational / Q000032:analysis*; D002849:Chromatography, Gas / Q000379:methods*; D007530:Isoflurane / Q000032:analysis*; D017132:Workplace
D000395:Air Pollutants, Occupational; D007530:Isoflurane