LI Caihong,WANG Caiyan,WANG Xiaojing,et al.Residual Characteristics and Pollutional Risk Assessment of Heavy Metal in Ningxia Original Radix Astragali[J].Northern Horticulture,2016,40(21):171-174.[doi:10.11937/bfyy.201621042]
宁夏道地黄芪重金属残留特征及污染评价
- Title:
- Residual Characteristics and Pollutional Risk Assessment of Heavy Metal in Ningxia Original Radix Astragali
- Keywords:
- Radix Astragali; heavy metal; residual characteristics; correlated relationship; pollutional risk assessment
- 文献标志码:
- A
- 摘要:
- 以宁夏不同产区黄芪及种植土壤为研究对象，采用原子吸收法和原子荧光法测定其中的铅、镉、砷、汞、铜5种重金属元素含量，研究了种植土壤重金属对黄芪重金属残留特征及污染风险的影响。结果表明：黄芪中5种重金属均有不同程度的检出但含量很低；黄芪中Hg与Cu含量之间呈显著负相关关系，Pb和Cd含量之间呈显著正相关关系；土壤中Cu与Pb、As、Cd含量之间，Pb和Cd、As含量之间呈极显著正相关关系，Cd和As、Hg含量之间呈显著正相关关系；Cu含量在黄芪和土壤之间呈显著正相关性。采用单项污染指数法和综合污染指数法对黄芪重金属污染风险进行评价，宁夏道地黄芪无污染。
- Abstract:
- Taking Radix Astragali in different region of Ningxia and planting soil as the experimental material，lead，cadmium，arsenic，mercury，copper five kinds of heavy metal element content were determined by using atomic abomic absorption，the effect of soil heavy metals on heavy metal residue characteristics of astragalus membranaceus and pollution risk were studied.The results showed that five kinds of heavy metal were detected to varying degrees in Radix Astragali，but the content was very low；it was significantly correlated relationship between Cd and Cu content in the Radix Astragali.It was extremely significant or significant correlation between Cu and Pb,As，Cd content in the soil，between As and Pb，Cd content there was a very significant or significant correlation relationship in the soil；Cu content was significant correlation between Radix Astragali and soil.Radix Astragali was pollution-free production in Ningxia using the single pollution index and comprehensive pollution index evaluate heavy metal pollution risk.
参考文献/References:
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备注/Memo
第一作者简介：李彩虹（1979-），女，本科，助理研究员，现主要从事农产品质量标准与检测技术等研究工作。E-mail:lch.6868@163.com.责任作者：马芸（1967-），女，本科，高级实验师，现主要从事农产品质量标准与检测技术等研究工作。E-mail:Xia0113@126.com.基金项目：宁夏自然科学基金资助项目（NZ15271）。