[Determination of o-chlorostyrene in the air of workplace by gas chromatography].
Wei Chen, Gui-Hua Liu, Kai Lin
文献索引:Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 29(2) , 152-3, (2011)
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摘要
To establish a rapid gas chromatographic method for determination of o-chlorostyrene in the air of workplace.The air samples were collected by syringes, injected directly to the GC system, and then separated by a FFAP capillary column (30 m × 0.53 mm × 0.25 µm), finally determined by a Flame Ionization Detector.A good linear correlation was showed within a range of 0 ∼ 1200 µg/L, with regression formula Y = 14 030 + 7 207X (r = 0.9999). The air sample could be stably stored in the syringe for 5 hrs. The relative standard deviation (RSD) of repeated injection of o-chlorostyrene standard solutions at three different concentration by six times was 1.28% ∼ 1.97%. The minimum detectable concentration was calculated to be 5.2 mg/m(3). Other coexistent violative organic compounds such as styrene, p-chlorostyrene, and m-chlorostyrene didn't interfere with the determination under the experimental conditions of this method.This method meets the requirement of "Guide for establishing occupational health standards-Part 4: Determination methods of air chemicals in workplace". It is applicable for determination of o-chlorostyrene in the air of workplace.
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