Luo Qian;Huang Yan;Jieming Zhu;Ming Ta

discolor;method;potentilla discolor bge;trace elements;sample;faa

[Objective] To determine the contents of trace elements in Potentilla discolor Bge of traditional Yi medicine,so as to provide references for the development and application of P.discolor.[Method] P.discolor sample was digested by microwave with concentrated nitric acid.Then,Fe,Cu,Zn,Mn,Ca and Mg contents in P.discolor sample were detected by FAAS.[Result] P.discolor was rich in various essential trace elements for human body.This method had good linear relationship(R=0.995 7-0.998 2);the average recovery rate was 96.4%-107%(n=8);and RSD was 1.9%-5.5%(n=8).[Conclusion] This method was simple and accurate and could be used for the continuous detection of many elements in P.discolor.