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通过转相-吹扫捕集(P&T)-气质联机法(A法)及液体直接进样法(B法)两种测试手段,对有机挥发份(苯系物及氯苯类化合物)溶液进行定量分析,两种分析方法的RSD为0.81-5.12%;直接进样分析快速、稳定,而吹扫捕集-GCMS灵敏度高,检出限可达0.3-0.3ug/L,说明两种分析方法可互为佐证,可以满足苯系物和氯苯类有机提取溶液的定量分析要求。
The volatile organic compounds (benzene series and chlorobenzene series) were separated by P & T-GC method (A method) and liquid direct injection method (B method) Quantitative analysis showed that the RSD of the two methods were 0.81-5.12%. The direct injection analysis was rapid and stable, but the purge and trap-GCMS sensitivity was high. The detection limits were up to 0.3-0.3ug / L, indicating that the two analytical methods Can be mutually supportive, to meet the quantitative analysis of benzene and chlorobenzene organic extraction solution requirements.