漫反射FT-IR法测定复合维生素B片剂中维生素B2的含量

目的：建立复合维生素B片剂中维生素B2含量的检测方法。方法：采用中红外漫反射定量分析技术，潮定了复合维生素B片剂中维生素B2的含量。结果：可直接测定出样品中维生素B2的含量，且吸光度与维生素B2的质量百分数成良好的线性关系，平均回收率为99．79％，RSD为1.85％。结论：本方法准确、可靠，可用于复合维生素B片剂中维生素B2的含量测定。

Determination of vitamin B2 in the tablet of vitamin B complex in diffuse reflectance FTIR

OBJECTIVE To establish a method for determination of vitamin B 2 in the tablet of vitamin B complex. METHOD Diffuse reflectance FTIR was used for determination of vitamin B 2.RESULTS The content of vitamin B 2 could be detected directly,and the relationship between the absorbance and the concentration was linear. The average recovery of vitamin B 2 was 99.79%,and RSD was 1.85%.CONCLUSION The method is simple,fast and reliable;it has been proved to be a good practice for determination of vitamin B 2 in the tablet of vitamin B complex.