岷县当归无机元素分析及重金属安全研究

Analysis of inorganic elements in Angelica sinensis and study on the safety of heavy metals

中文关键词:  岷县当归  无机指纹图谱  电感耦合等离子体质谱法

英文关键词:Angelica  fingerprint of inorganic elements  inductively coupled plasma mass spectrometry

中文摘要:

      目的 分析岷县当归中Li、Be、Na、Mg、Al、K、Ca等28种无机元素的含量及重金属安全状况, 建立岷县当归无机元素指纹图谱。方法 采用超级微波-电感耦合等离子体质谱法测定岷县当归中无机元素含量。结果 岷县当归中28种无机元素均有检出, 各元素含量差异很大。平均含量最高的是K(106722.680 mg/kg), 最低的为Cd(0.021 mg/kg); 重金属Cu、As、Cd、Hg、Pb的含量分别为4.941、0.540、0.021、0.028、0.749 mg/kg占《药用植物及制剂进口绿色行业标准》中相应元素限量(Cu≤20.000 mg/kg, As≤2.000 mg/kg, Cd≤0.300 mg/kg, Hg≤0.200 mg/kg, Pb≤5.000 mg/kg)的24.7%、27.2%、7.0%、14.0%、15.0%; 28种无机元素含量分布具有相似峰形。结论 目前, 岷县当归重金属积累较少, 建立的无机元素指纹图谱, 从无机元素角度进一步完善岷县当归指纹图谱数据库, 为岷县当归的产地溯源技术的建立提供谱图支持。

英文摘要:

      Objective To explore contents of 28 inorganic elements including Li, Be, Na, Mg, Al, K and Ca and safety status of heavy metals in Angelica sinensis produced in Minxian, Establishing the inorganic element fingerprint of Angelica sinensis produced in Minxian. Methods Inductively coupled plasma mass spectrometry (ICP-MS) was taken to detect the contents of the 28 elements in Angelica. Results Twenty-eight kinds of inorganic elements in Angelica sinensis were detected, and the content of each element varied greatly. The highest average content was K (106722.68 mg/kg), and the lowest was Cd (0.021 mg/kg). The content of heavy metals in the five major producing in areas of Minxian was relatively low. The contents of Cu, As, Cd, Hg and Pb were 4.941, 0.540, 0.021, 0.028, 0.749 mg/kg accounted for the corresponding element limit in the “Green industry standard for imports of medicinal plants and preparations” (Cu≤20.000 mg/kg, As≤2.000 mg/kg, Cd≤0.300 mg/kg, Hg≤0.200 mg/kg, Pb≤5.00 mg/kg) of 24.7%, 27.2%, 7.0%, 14.0%, 15.0%. The content distribution of 28 elements in Angelica has similar peak shape. Conclusion At present, the accumulation of heavy metals in Angelica sinensis is less; the fingerprint of inorganic elements is established, and the fingerprint database of Minxian Angelica is further improved from the perspective of inorganic elements, which provides spectral support for the establishment of the traceability technology of the origin of Minxian Angelica.