电感耦合等离子体原子发射光谱法测定8种蔬菜中微量元素

ICP-AES Determination of 16 Elements of Microamounts in 8 Kinds of Vegetables

将电感耦合等离子体原子发射光谱法（ICP—AES）应用于8种蔬菜中钙、铝、铜、铁、锰、锌、铬、汞、磷、硒、镁、砷、镉、铅、钾、钠等16种微量元素的测定。方法中给出了仪器的工作条件，并叙述了分析谱线的选择，采用微波加热方法对试样进行消解。16种微量元素的检出限在0．3～30．0μg·L^-1之间，经试验得出各元素的回收率在94．3％-104．8％之间。

ICP-AES was applied to the determination of microamounts of 16 elements （Ca, Al, Cu, Fe, Mn, Zn, Cr, Hg, P, Se, Mg, As, Cd, Pb, K, Na） in 8 kinds of vegetables. Working conditions of the instrument was given and the choice of analytical spectral lines was described. Microwave heating was used in the sample digestion. Detection limits for these elements were found in the range of 0.3-30.0μg·L^-1. Results of recovery test obtained were in the range of 94. 3%-104.8%.