ICP-MS法测定三丫苦中微量元素的研究

The Trace Elements in Evodia lepta (Spreng.) Merr. Measured by ICP-MS

采用微波消解技术ICP—MS法测定了三丫苦根、茎、叶中的Li，B，Mg，V，Mn，Cu，As，Sr，Mo，Cs，Ba，Ph，Cr，Fe，Ni，Co，Sn，Sb，Bi，Cd20种元素的含量．结果表明：各元素的检出限为0．007～0．883mg·L^-1，相对标准偏差为0．19％～3．8％，回收率为81．1％～115．1％．三丫苦植物的根、茎、叶中含有较高的Mg，Mn，Fe，B，Cu，Sr，Ni，Ba微量元素，具有一定的药用价值．该方法操作简便、测量快速、结果准确，易于推广．

ICP-MS with microwave digestion technique was used to measure the content of Li, B, Mg, V, Mn, Cu, As, Sr, Mo, Cs, Ba, Pb, Cr, Fe, Ni, Co, Sn, Sb, Bi and Cd in the roots, stems and leaves of Evodia lepta （ Spreng. ） Merr. The results showed the detection limits of all elements were 0.007 - 0. 883 mg · L- 1, the RSDs were 0.19% -3.8% ,and the recovery rate were 81.1% - 115.1%. The roots, stems and leaves of Evodia lepta （Spreng.） Merr contained Mg, Mn, Fe, B, Cu, Sr, Ni, Ba, which have some medicinal value. The method was simple, rapid, accurate, and reliable.