气体富集法测定水中微量挥发性芳香烃

Trace Analysis of Volatile Arene in Water By Gas Chromatography

采用气体富集装置,将水中苯、甲苯、二甲苯等芳香烃富集后结合吸附浓缩法导入气相色谱(GC)仪进行分析,检测浓度为10.5～16.9μg/L,富集法提高了20～53倍,并探讨了各种操作条件对色谱灵敏度的影响。

Trace of volatile arene in water is concentrated by gas phase stripping and adsorption an all —glass sampling device is designed which allows efficient concentration.The sample is transferred from ad- sorbent into the dcapillary column by heating.Detection limits of the method was 10.5μg/L.