建立了电感耦合等离子体质谱(ICP-MS)法测定用HNO3+H2O2混合酸经微波消解处理苦杏仁样品中B, Na, Mg, Al, P, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Mo, Cd, Ba, Pb等24种微量元素的分析方法, 优化了仪器的最佳工作条件。 通过添加标准进行加标回收, 结果表明, 24种待测微量元素的相对标准偏差(RSD)均小于4.79%, 回收率在90.00%～109.30%之间。 该法具有准确度高、 精密性好、 并能同时进行多种元素测定等优点, 该法可为苦杏仁中无机元素的快速检测提供科学依据。

Samples of bitter almond were digested by microwave digestion, and trace elements amounts of B, Na, Mg, Al, P, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Mo, Cd, Ba and Pb in sample solutions were determined by inductively coupled plasma mass spectrometry (ICP-MS). HNO3+H2O2 was used to achieve the complete decomposition of the organic matrix in a closed-vessel microwave oven. The working parameters of the instrument were optimized. The results showed that the relative standard deviation (RSD) was less than 4.79% for all the elements, and the recovery was 90.00%～109.30% by adding standard recovery experiment. This method was simple, sensitive and precise and can perform simultaneous multi-elements determination for bitter almond, which could satisfy the sample examination request and provide scientific rationale for determining inorganic elements in bitter almond.