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[Objective] To preliminarily study the relationship between the Cd content in Ligusticum chuanxiong Hort. and the pH value and active-state Cd content in cultivated soil. [Method] Contents of active-state Cd in L. chuanxiong cultivated in soils with different pH values were extracted and detected by oscillation extraction, ultrasonic extraction and atomic absorption method. And the Cd content in corresponding L. chuanxiong was detected. [Result] In soil with pH value between 4.9 and 5.76, content of ion form Cd accounted for 52.09% of the total Cd content. In soil with pH value between 7.21 and 7.53, content of ion form Cd accounted for 24.11%. Cd content in L. chuanxiong was low when the pH value of cultivated soil was high. [Conclusion] Low pH value of soil had high content percentage of ion form Cd and great Cd content in L. chuanxiong.
[Objective] To preliminarily study the relationship between the Cd content in Ligusticum chuanxiong Hort. And the pH value and active-state Cd content in cultivated soil. [Method] Contents of active-state Cd in L. chuanxiong cultivated in soils with different pH Values were extracted and detected by oscillation extraction, ultrasonic extraction and atomic absorption method. And the Cd content in corresponding L. chuanxiong was detected. [Result] In soil with pH value between 4.9 and 5.76, content of ion form Cd accounted for 52.09% content of ion form Cd accounted for 24.11%. Cd content in L. chuanxiong was low when the pH value of cultivated soil was high. [Conclusion] Low pH value of soil had high content percentage of ion form Cd and great Cd content in L. chuanxiong.