Heavy Metal Residual Characteristics of Liquorice and  Pollutional Risk Assessment in Ningxia(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Heavy Metal Residual Characteristics of Liquorice and  Pollutional Risk Assessment in Ningxia

Author(s):: LI Caihong; WANG Caiyan; WANG Xiaojing; (Supervision and Testing Center for Lycium Quality，Ministry of Agriculture，Yinchuan，Ningxia 750002)

Keywords:: liquorice; heavy metal; residual characteristics; correlated relationship; the pollutional risk assessment

Abstract:: Taking Ningxia licorice in different regions and planting soil as the experimental materials，five kinds of heavy metal element content (lead，cadmium，arsenic，mercury，copper)were determinated by atomic abomic absorption and atomic fluorescence，the characteristics of heavy metal residues and pollutional risk were analyzed.The results showed that five kinds of heavy metal were detected to varying degrees in licotice，but the content was very low；it was significantly correlated relationship between Cd and Cu content in the glycyrrhiza,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 licorice and soil.Licorice was pollution-free in Ningxia using the single pollution index and comprehensive pollution index evaluate heavy metal pollution risk.

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Last Update: 2016-11-01