中文摘要：

目的考察安徽市场特色中药材的二氧化硫残留情况。方法收集了安徽亳州药材市场、合肥药店及医院样品共43份，采用2015版药典规定的酸碱滴定法检测样品中二氧化硫的含量。结果根据药典规定，除山药，粉葛，天麻，天花粉，白芍，白术含硫量〈=400mg／kg，其它药材含硫量〈=150mg／kg为符合标准，亳州市场、药店、医院中药材样品二氧化硫测定情况分别为4种，5种，3种药材超标。结论当前市场上中药材的二氧化硫残留量超标的问题仍然存在，有关部门应制定专项检查规定，以保证中药材的用药安全。

英文摘要：

Objective To investigate the remanent SO2 in characteristics of Chinese herbal medicine of Anhui. Methods The authors collect 43 samples from Chinese medicinal material markets in Bozhou, drugstore in Hefei and chinese medicine hospital in Hefei, and use acid-base titration in Chp 2015. Results According to the Chp 2015, except for yam, fenge, tianma, snakegourd root, white paeony root, Atractylodis macrocephalae, which are standard by contenting sulfur dioxide no more than 400 mg/kg, the others that content SO2 no more than 150 mg/kg meet standards, the number of the samples collect from Chinese medicinal material markets, drugstore, Chinese medicine hospital, which exceed criterion, are 4, 5, 3, respectively. Conclusion Until now, there remains the phenomenon that remanent SO2 in Chinese traditional medicine exceeds standard. The related departments should formulate special inspection requirement to make sure the safe medication of Chinese traditional medicine.