•  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
期刊检索


检索
检索项:
检索词:
总目录
  • WCSB9︱2019(第九届)世界采样和混样大会 查看全文>>
  • 关于召开第十五届全国青年分析测试学术报告会的通知 查看全文>>
友情链接
矿物元素指纹图谱的建立及在西洋参产地鉴别中的应用研究
    点此下载全文
作者单位
张春华,陈春桃,陈亮,韩必恺,李子宜,吴惠勤,黄晓兰 广东省科学院测试分析研究所(中国广州分析测试中心)广东省化学危害应急检测技术重点实验室广东省中药质量安全工程技术研究中心广东广州510070 
基金项目:广东省科学院发展专项资金项目(2019GDASYL-0105016)
中文摘要:采用电感耦合等离子体质谱法测定了山东、吉林、美国和加拿大4个产地西洋参中50种矿物元素的含量,研究了不同产地西洋参矿物元素的差别和转换系数,构建了西洋参的矿物元素指纹图谱。以各产地矿物元素含量的平均值构建了山东、吉林、美国和加拿大产西洋参的矿物元素标准指纹图谱。采用SPSS 200计算了各西洋参矿物元素指纹图谱与其矿物元素标准指纹图谱的相似度,确定了山东、吉林、美国和加拿大产西洋参矿物元素指纹图谱的相似度阈值分别为093、091、098和093。通过比较未知产地西洋参矿物元素指纹图谱与矿物元素标准指纹图谱的相似度,进行西洋参的产地判别。采用20批未知产地西洋参样品验证模型的准确性,正确率为85%。此外,研究表明,不同生长年限和不同部位西洋参样品对所建立的西洋参产地鉴别方法无影响。
中文关键词:西洋参  矿物元素指纹图谱  产地鉴别  电感耦合等离子体质谱法
 
Establishment of Mineral Element Fingerprints and Their Application in Identification on Geographical Origin of American Ginseng
Abstract:An inductively coupled plasma mass spectrometry(ICP-MS) was applied to the detection of concentrations of 50 mineral elements in American ginseng originated from Shandong(China),Jilin(China),USA and Canada.The mineral element compositions in American ginseng from different places were compared to decide the reduction factors,and then the mineral element fingerprints were constructed by transferring element compositions into graphs.In addition,the standard element fingerprints were established by using the average concentrations of each mineral element in American ginseng from Shandong(China),Jilin(China),USA and Canada,respectively.The similarity degrees between the mineral element fingerprints and the standard element fingerprints of the American ginseng samples from different regions were calculated with SPSS 200 Software.The thresholds of the similarity degrees were 093,091,098 and 093 for American ginseng from Shandong(China),Jilin(China),USA and Canada,respectively.To identify the geographical origin of an unknown American ginseng,it need calculate the similarity degree between the mineral element fingerprint of the unknown American ginseng and the standard element fingerprints,if the similarity degree is higher than the threshold of the similarity degree of American ginseng of a certain geographical origin,the unknown American ginseng belongs to the origin.20 batches of unknown American ginseng were used to verify this method with an accuracy of 85%.Furtherfore,the different ages and parts of American ginseng had no impact on the presented method.
Key Words:American ginseng  mineral element fingerprints  geographical origin  inductively coupled plasma mass spectrometry
引用本文:张春华,陈春桃,陈亮,韩必恺,李子宜,吴惠勤,黄晓兰.矿物元素指纹图谱的建立及在西洋参产地鉴别中的应用研究[J].分析测试学报,2021,40(3):318-325.
摘要点击次数: 132
全文下载次数: 218
查看全文  下载PDF阅读器