毛细管气相色谱法同时测定工作场所空气中丁酮、三氯乙烯、四氯乙烯、正丁醇、乙苯

主要针对研究用气相色谱法同时测定工作场所空气中丁酮、三氯乙烯、四氯乙烯、正丁醇、乙苯质量浓度。该法线性范围0.2~1 630μg/mL,最低检出质量浓度为0.1~0.7 mg/m~3,加标回收率96.43%~98.56%,相对标准偏差小于5%。该法灵敏度高、精密度与准确度好、并且操作简便、分离效果好,在满足实验条件的前提下能大大缩短采样时间和分析时间。

Simultaneous Determination of Butanone,Trichloroethylene, Tetrachloroethylene,n-butanol and Ethylbenzene by Capillary GC

This method is mainly based on gas chromatography method for the simultaneous determination of butanone, trichloroethylene, tetrachloroethylene, n-butanol and ethylbenzene in the air of workplace. The linear range of the method is 0. 2~1 630 μg/mL, the minimum detectable concentration is 0. 1 ~0. 7 mg/m3 , the standard recovery rate is 96. 43% ~98. 56%, and the relative standard deviation is less than 5%. The method has the advantages of high sensitivity, good precision and accuracy, simple operation, good separation effect, and can greatly reduce the sampling time and analysis time under the premise of satisfying the experimental conditions.