煤焦油中萘含量测定方法的改进

Improvement of the Method for Determining Naphthalene Content in Coal Tar

针对目前煤焦油中萘含量测试方法存在的问题,进行了分析研究,并对常用的测定方法进行了改进,开发了蒸馏-色谱法。结果表明,蒸馏-色谱法能准确测定煤焦油中萘含量,其准确度和精密度能满足国家标准的要求,精度高、误差小、操作简便,适用于生产在线控制。

In view of the problems that exist in and research of the determination method have been chromatography method has finally been developed the methods determining the naphthalene content in coal tar, analysis repeatedly carried out in the hope to improve it, and a distillation The results show that this method can accurately determine the naphthalene content in the coal tar, and its accuracy and precision can meet the Chinese Standard. The distillation chromatography method features in high accuracy, low error, easy operation, and is applicable to on-line production control.