论文部分内容阅读
利用高碘酸强的氧化性，使ＶＢ２氧化，其本身生成碘酸与硝酸银反应生成沉淀，通过测定沉淀中的Ａｇ＋，建立了分析ＶＢ２的新方法——原子吸收分析法。测得ＶＢ２的量与吸光度峰值高度在２．５～１５μｇ／ｍＬ范围内呈良好线性关系（ｒ＝０．９９９９），回收率在９５％～１０３％范围内，与药典法测定结果的相对偏差小于３．２％。
The oxidation of VB2 by the strong oxidation of periodic acid made VB2 oxidize, which itself formed iodate and reacted with silver nitrate to form a precipitate. A new method for the analysis of VB2 was established by the determination of Ag + in the precipitate - atomic absorption spectrometry. The linear relationship between the amount of VB2 and the peak height of absorbance was found in the range of 2.5 ~ 15μg / mL (r = 0.9999). The recoveries ranged from 95% to 103% Less than 3.2%.