摘要
目的:建立甲苯二异氰酸酯的气相色谱-质谱检测方法。方法:用甲苯萃取,经七氟丁酸酐衍生化,再将衍生物进行质谱定性定量分析。结果:方法最低检出浓度为0.001 mg/L,相对标准偏差(RSD)为4.3%(n=6),样品加标平均回收率为98%。结论:用GC/MS方法测定TDI,结果满意。
Objective：To establish a method for determination of Toluene diisocyanate（TDI） by GC-MS in air of workplace.Methods：TDI can be hydrolyzed to toluene diamine（TDA） which can be extracted with toluene.TDA of toluene was derivatived with Heptafluorobutyric anhydride and its derivative was used for determination by GC-MS.Results：The detection limits was 0.001 mg/L.The correlated coefficient was 0.999.The average recovery was 98% and RSD 4.3%（n=6）.Conclusion：The method is simple,efficient,accurate and sensitive.It can be used to determine TDI in air of workplace.
出处
《中国卫生检验杂志》
CAS
2010年第5期998-1000,共3页
Chinese Journal of Health Laboratory Technology
