1,3,5-三硝基苯纯度测定方法研究  

Determination methods of the purity of 1,3,5-trinitrobenzene

作　　者：封跃鹏[1] 杨刚[1] 徐鹏[1] 房丽萍[1] 

机构地区：[1]环境保护部标准样品研究所,北京100029

出　　处：《化学试剂》2013年第12期1111-1113,共3页Chemical Reagents

摘　　要：建立了1,3,5-三硝基苯纯度的测定方法。通过气相色谱峰面积归一化法测定1,3,5-三硝基苯试剂中有机杂质;采用气相色谱法直接测定1,3,5-三硝基苯的纯度,尝试用常压干燥法和卡尔费休库仑法测定试剂中水分来间接测定1,3,5-三硝基苯纯度。研究发现,气相色谱法和常压干燥法的测定结果具有一致性,而卡尔费休库仑法与前两者的测定结果差异较大。Determination methods of the purity of 1,3,5-trinitrobenzene ware established. The organic impurities in 1,3,5trinitrobenzene regent was determined by peak area normalization method of GC-FID （ Gas Chromatography-Flame Ionization Detector）. The determination methods of the purity of 1,3,5trinitrobenzene was invesitigated with the principal component analysis of GC-FID. It was tied to test indirectly the purity of 1,3,5-trinitrobenzene, with determined moisture content in 1,3,5-trinitrobenzene by atmospheric pressure drying and by Karl Fischer coulometry. The result of determination by atmospheric pressure drying corresponds with the result of determination by GC-FID. The result of determination by Karl Fischer coulometry is different from the results of determination by GC-FID and by atmospheric pressure drying.

关 键 词：1 3 5-三硝基苯 纯度 水分 杂质 

分 类 号：O656.9[理学—分析化学]