电感耦合等离子体质谱法测定紫甘薯中痕量元素  

ICP-MS Determination of Trace of Elements in Purple Sweet Potatoes

作　　者：陈新[1] 周宏[1] 柳闽生[1] 张凤[1] 

机构地区：[1]南京晓庄学院化学系,南京211171

出　　处：《理化检验（化学分册）》2010年第12期1397-1399,共3页Physical Testing and Chemical Analysis(Part B:Chemical Analysis)

摘　　要：用硝酸和过氧化氢在MDS-6型微波消解仪中处理紫甘薯试样,用电感耦合等离子体质谱法测定13种试样中痕量元素的含量。用动态反应池技术消除质谱测定中的光谱干扰。在优化试验条件下,方法的检出限(3S/N)在0.015～1.890μg·L^(-1)范围,方法用于紫甘薯中痕量元素的测定,加标回收率在94%～102%之间。The sample of purple sweet potato was digested with HNO_3 and H_2O_2 in MDS-6 microwave digestor and 13 trace elements in the solution were determined by ICP-MS.The spectral inferences were eliminated by the technique of dynamic reaction cell（DRC）.Under the optimized conditions,values of detection limit（3S/N） of the method found were in the range of 0.015-1.890μg·L^（-1）.The proposed method was applied to the determination of micro-amount of elements in purple sweet potato,giving values of recovery found by standard addition method ranged from 94%to 102%.

关 键 词：电感耦合等离子体质谱法 微波消解试样 紫甘薯 痕量元素 

分 类 号：O657.63[理学—分析化学]