摘要
本文采用高压消解-原子荧光光谱法测定大米中的重金属汞的含量,选定了大批样品的最佳处理方法,并优化了测定条件。得到回归方程为:A=1055.323*C+0.355,相关系数为:0.9995;检出限为:0.415μg/kg,线性范围为:0～2ng/mL;回收率为:95%～102%;相对标准偏差为1.0%-6.5%;结果满意。
Rice was digested and treated with high-pressure digestion for Hg determination by HG-AFS. The measurement conditions were optimized and the regression equation is： A=1055.323＂C＋0.355, with the linear range of 0-2ng/mL. The related coefficient, detection limit, recovery and RSD of the method were 0.9995, 0.415ug/kg, 95%-102% and 1.0%-6.5%, respectively. This method was simple, accurate and fast.
出处
《现代食品科技》
EI
CAS
2008年第11期1188-1190,共3页
Modern Food Science and Technology
