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目的探讨2015版《中国药典》一部硫黄含量测定中过氧化氢试液的用量。方法从市场及医院收集硫黄药材14批,使用不同体积的过氧化氢试液,按照《中国药典》2015版一部中的方法,测定硫的含量。结果过氧化氢取试液用量分别为5,15,20m L,反应不完全,实验结果重现性较差且含量偏低。过氧化氢试液取用量为25、30m L时反应完全,二者无统计学差异(P>0.05),含量符合要求。结论《中国药典》2015版一部硫黄含量测定中过氧化氢试液使用量改为25m L较为适宜。
Objective To investigate the amount of hydrogen peroxide test solution in a Chinese version of the Chinese Pharmacopoeia 2015 edition for determination of sulfur content. Methods 14 batches of sulfur medicinal materials were collected from the market and the hospital. Different volumes of hydrogen peroxide test solution were used to determine the sulfur content according to the method of Chinese Pharmacopoeia 2015 Edition. Results Hydrogen peroxide test solution were 5,15,20 m L, the reaction is not complete, the experimental results were poor reproducibility and low content. Hydrogen peroxide test solution to take the amount of 25,30 m L reaction was complete, no significant difference between the two (P> 0.05), content in line with the requirements. Conclusion It is more appropriate to change the amount of hydrogen peroxide test solution used in the Chinese Pharmacopoeia 2015 edition into a sulfur content test to 25 mL.