[Determination of tert-butyl alcohol in the air of the workplace by solvent desorption gas chromatography].
Objective:To establish solvent desorption gas chromatographic method for determination of tert-butyl alcohol in the air of the workplace.Methods:After tert-butyl alcohol in the air of the workplace collected with activated carbon tube and desorbed with 2% 2-propanol in CS2, and then separated with DB-FFAP capillary column and detected with flame ionization detector.Results:The linearity ranges were 0.6~2 264.0 mg/L. The limit of quantification was 0.6 mg/L. The determination has a good reproducibility. The intraassay and interassay precisions were 2.8%~3.2% and 3.8%~5.7%. The desorption efficiencies were 93.9%~98.1%. Absorption efficiencies were 95.8%~100.0%. The breakthrough volume was above 7.1 mg in 100mg activated carbon. The samples in activated carbon tube could be stored for at least 14 days at ambient temperature.Conclusion:The method is feasible for determination of tert-butyl alcohol in the air of the workplace.
Shenzhen Prevention and Treatment center for Occupational Diseases, Shenzhen 518001, China.
T D
TD
Li
F
F
Liu
Y X
YX
Xie
J H
JH
Chen
D019840:2-Propanol; D000395:Air Pollutants, Occupational / Q000032:analysis*; D002606:Charcoal; D002849:Chromatography, Gas / Q000379:methods*; D015203:Reproducibility of Results; D012997:Solvents; D017132:Workplace; D020002:tert-Butyl Alcohol / Q000032:analysis*
D000395:Air Pollutants, Occupational; D012997:Solvents; D002606:Charcoal; D020002:tert-Butyl Alcohol; D019840:2-Propanol