市售10种中药饮片中二氧化硫残留量测定

目的测定10种常用中药饮片中二氧化硫残留量。方法采用酸蒸馏碘滴定法。结果市售10种中药饮片样品均有二氧化硫残留,且超过国家新标准。结论市售中药二氧化硫残留现象普遍,应引起高度重视,建议以国字食品药品监督局制订的中药材及饮片中控制二氧化硫残留量检测限度为标准,加大监管力度。

Determination of sulfur dioxide residue levels in 10 types of prepared Chinese medicines

Abstract] Objective To determine the sulfur dioxide residue levels of 10 types of Chinese herbal medicine. Methods The acid distilled iodine titration method was used. Results The levels of sulfur dioxide residue in all the prepared Chinese herbal medicine samples from markets were higher than that in the new national standards. Conclusion The results suggest that the sulfur dioxide residue levels of Chinese herbal medicine in markets are commonly higher than the new national standards. This phenomenon should be highlighted and actions should be taken to negulate the prodution of prepared Chinese herbal medicine.