Hg(II)—SCN^———甲基紫三元络合物光度法测定牛奶中痕量的汞
2003
用Hg(Ⅱ)-SCN--甲基紫三元络合物光度法测定牛奶中痕量的汞,该法灵敏度高,络合物的摩尔吸光系数e=5.015×105L/(mol@cm),汞浓度在0~8μg/(50 mL)时与吸光度呈线性关系,线性回归方程为A=0.04693c+0.01816,相关系数r=0.9928,汞的回收率为97.0%~98.5%,检出限为0.0068μg/mL.
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