目的对成都市售白芷、粉葛中二氧化硫残留情况进行检测,分析目前市场上中药硫熏现状。方法酸蒸馏碘滴定法。结果市售白芷、粉葛中药材样品均有二氧化硫残留,且部分超过国家标准。结论市售中药材二氧化硫残留现象普遍,应引起高度重视,加大监管力度。 Objective To detect the residue of sulfur dioxide in Angelica dahuricae and Pueraria lobata L. in Chengdu and analyze the current status of sulfur smoked herb in the market. Methods Acid distillation iodometric titration. Results Angelica, powder Pueraria herbs samples are sulfur dioxide residues, and some more than the national standard. Conclusion The common phenomenon of residual sulfur dioxide in traditional Chinese medicinal materials is widespread and should be paid great attention to and supervision should be intensified.