火焰原子吸收分光光度法测定中药材中微量铁含量研究

摘要

[目的]建立中药材中微量铁含量的测定方法。[方法]采用火焰原子吸收分光光度法进行测定,测定波长为248.3 nm。[结果]铁在1.0～8.0μg范围内线性关系良好（r=0.999 3,n=5）,平均回收率为100.91%（RSD=1.94%,n=5）。[结论]该方法简便、灵敏,适用于中药材中微量铁的检测。%[Objective] A method was established to determine the content of trace iron in traditional Chinese medicines. [Method] Flame atomic absorption spectrometry was used and the determination wavelength was 248.3 nm. [Results] The linear range of determination of trace iron wasl.O- 8.0 I-t g （r=-0.999 3）, the average recovery and RSD value of trace iron were 100.91% and 1.94% respectively. [Conclusion] The method is simple and sensitive for determination of trace iron in traditional Chinese medicines.