基于XRF法建立云浮市南药品种重金属及有害元素含量快速测定方法  

Establishment of a Rapid Detection Method for Heavy Metal and Harmful ElementContent in Southern Medicinal Varieties in Yunfu Based onX-ray Fluorescence Spectroscopy

作　　者：黎莉莉 黄海珍 区梓聪 Li Lili;Huang Haizhen;Ou Zicong(Yunfu Institute for Food and Drug Control,Yunfu 527300,China)

机构地区：[1]云浮市食品药品检验所,广东云浮527300

出　　处：《广东化工》2025年第5期143-145,共3页Guangdong Chemical Industry

摘　　要：目的:采用便携式X射线荧光元素分析仪(XRF)建立云浮市南药品种重金属及有害元素含量的快速检测方法。方法收集云浮市辖区内种植的17批次样品采用便携式XRF对上述中药材进行测定,将测试结果与电感耦合等离子体质谱法(ICP-MS)的测定结果对比,报告其重金属及有害元素含量情况并评价其实用性。结果采用ICP-MS测定17批次中药材的5种元素(铅、砷、镉、汞、铜)的含量均低于限值水平,与XRF的测定结果对比,相对平均偏差(RD%)均小于10%。便携式XRF测定5种元素的检测限,分别为20 ppm、16 ppm、30 ppm、20 ppm、8 ppm;重复性(RSD%)均小于6%;检测范围分别为20 mg/L~1000 mg/L、20 mg/L~1000 mg/L、20 mg/L~1000 mg/L、30 mg/L~1000 mg/L、10 mg/L~1000 mg/L。结论:云浮市辖区内种植的牛大力、广藿香、三丫苦、肉桂、巴戟天5个南药品种均无出现重金属及有害元素污染的情况,品质较佳。便携式XRF具有较好的实用性、稳定性和耐用性。该方法适用于云浮市南药品种重金属及有害元素含量的快速检测,可在中药材重金属及有害元素初筛阶段进行半定量分析测试。Objective:This article was established a rapid detection method for heavy metals and harmful element content in southern medicinal varieties inYunfu using a portable X-ray fluorescence elemental analyzer(XRF).Method:A total of 17 batches of Chinese medicinal materials were collected from thejurisdiction of Yunfu.The portable XRF was used to determine the above-mentioned Chinese medicinal materials.The test results were compared with thoseobtained by inductively coupled plasma mass spectrometry(ICP-MS).The heavy metals and harmful element content of the 17 batches of Chinese medicinalmaterials were reported and their practicality was evaluated.Simultaneously.Results:The results showed that the content of 5 elements(lead,arsenic,cadmium,mercury,copper)in 17 batches of Chinese medicinal materials were all below the limit level determined by ICP-MS.Compared with the results of XRF,the relativeaverage deviation(RD%)was less than 10%.The detection limits for five elements were determined by portable XRF,with values of 20 ppm,16 ppm,30 ppm,20 ppm,and 8 ppm.The repeatability(RSD%)were less than 6%.The detection ranges were 20 mg/L~1000 mg/L,20 mg/L~1000 mg/L,20 mg/L~1000 mg/L,30 mg/L~1000 mg/L,and 10 mg/L~1000 mg/L.Conclusion:The five southern medicinal varieties planted in the jurisdiction of Yunfu,including Niu da li,Guang huo xiang,San ya ku,Cinnamon,and Ba ji tian,has been no occurrence of heavy metals and harmful elements pollution,with better quality.The portable XRF has goodpracticality,stability,and durability.This method is suitable for rapid detection of heavy metals and harmful elements in southern medicinal varieties in Yunfu.It canbe used for semi-quantitative analysis and testing of heavy metals and harmful elements in Chinese medicinal materials during the initial screening stage.

关 键 词：电感耦合等离子体质谱法 便携式X射线荧光元素分析法 重金属及有害元素 含量测定 南药 

分 类 号：R931[医药卫生—生药学]