Zhang Ya-Jing, Wang Tao, Guo Qiao-Sheng, Zou Qing-Jun, Zhao Meng-Lu, Han Zheng-Zhou, Wei Min
Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing 210095, China.
Sanjiu Medical & Pharmaceutical Co., Ltd., Shenzhen 518110, China.
Zhongguo Zhong Yao Za Zhi. 2018 Jul;43(14):2908-2917. doi: 10.19540/j.cnki.cjcmm.20180510.011.
ICP-MS was used to determine the contents of five heavy metals such as lead (Pb), cadmium (Cd), mercury (Hg), arsenic (As) and copper (Cu) in Chrysanthemum indicum and soil samples. Pearson correlation and path analysis were used to analyze the effects of latitude and longitude and altitude on the content of heavy metal elements in Ch. indicum. To explore the relationship between geographical location of heavy metal content in Ch. indicum and the content of heavy metal elements in soil. The results showed that the Ch. indicum had high enrichment of Cd and had a synergistic effect on the absorption of five heavy metal elements. Elevation directly affected the accumulation of Pb and Cd in Ch. indicum and was a positive effect. The direct positive effect of latitude acts on the accumulation of Hg and Cu in Ch. indicum. The effect of longitude on the Cd content was the negative effect of longitude. The geographical location had different effects on the accumulation of heavy metal elements in Ch. indicum. There was a certain interaction between direct and indirect effects. Ch. indicum had different absorption and enrichment characteristics for different heavy metal species. When controlling the heavy metal content and medicinal material quality of Ch. indicum, we must fully consider the influence of geographical location on the quality of medicinal materials, select suitable geographic regions to carry out acquisitions, and choose a good ecological environment. Regional establishment of Chinese herbal medicine planting bases, or adopting certain agricultural measures to reduce the absorption of heavy metal elements in Ch. indicum herbs, while conducting research on chemical composition, strengthening the research on the effective forms of heavy metals, and paying attention to the safety of medicinal herbs.
采用电感耦合等离子体质谱法（ICP-MS）测定了野菊花及土壤样品中铅（Pb）、镉（Cd）、汞（Hg）、砷（As）和铜（Cu）5种重金属的含量。运用Pearson相关性和通径分析方法，分析了纬度、经度和海拔对野菊花中重金属元素含量的影响。探讨野菊花重金属含量的地理位置与土壤中重金属元素含量之间的关系。结果表明，野菊花对镉具有较高的富集能力，且对5种重金属元素的吸收存在协同效应。海拔直接影响野菊花中铅和镉的积累，且呈正效应。纬度对野菊花中汞和铜积累的直接正效应显著。经度对镉含量的影响表现为负效应。地理位置对野菊花中重金属元素积累的影响各异，直接效应与间接效应之间存在一定的相互作用。野菊花对不同重金属种类具有不同的吸收和富集特征。在控制野菊花重金属含量和药材质量时，必须充分考虑地理位置对药材质量的影响，选择适宜的地理区域进行采收，并选择良好的生态环境。区域性建立中药材种植基地，或采取一定的农艺措施降低野菊花药材中重金属元素的吸收，同时开展化学成分研究，加强对重金属有效形态的研究，并关注药材的安全性。
