论文部分内容阅读
目的:建立适用于饮用水中挥发性氯化消毒副产物的分析方法。方法:利用吹扫捕集-气相色谱/质谱联用技术,全扫描方式进行质谱定性,外标法定量。结果:方法在试验浓度范围内线性良好(r>0.9991),检出限为0.02μg/L～0.13μg/L,样品平均回收率在95%～103%,相对标准偏差(RSD)在3.3%～9.5%。结论:该方法具有分析快速、简单,准确、灵敏、无干扰等优点,适合于饮用水中氯化消毒副产物的检测。
Objective: To establish a method suitable for the analysis of volatile chlorinated disinfection by-products in drinking water. Methods: Purification and trapping - gas chromatography / mass spectrometry, full scan mass spectrometry, external standard method. Results: The method showed a good linearity (r> 0.9991) with a detection limit of 0.02μg / L ~ 0.13μg / L, with an average recovery of 95% -103% and a relative standard deviation (RSD) of 3.3% ~ 9.5%. Conclusion: The method has the advantages of rapid, simple, accurate, sensitive and non-interference analysis. It is suitable for the detection of chlorinated disinfection by-products in drinking water.