微波密闭消解—原子荧光法测定水中的硒

Microwave digestion-atomic fluorescence determination of selenium

目的:建立微波消解原子荧光法测定水中硒的方法。方法:采用微波消解技术对水样进行消化处理,原子荧光法测定水中硒的含量。结果:消解完全彻底,回收率在95.7%～104.7%之间,方法的检测限为0.12μg/L,在0.001μg/ml～0.10μg/ml范围内,相关系数r=0.9997,相对标准偏差1.5%。结论:微波密闭消解水样,消化过程节约试剂,防止试样中待测元素的损失,干扰少,适用于水中硒的测定。

Objective：To establish a microwave digestion and Atomic Fluorescence Determination of Se.Methods： Of microwave digestion of water samples digestion treatment,Atomic Fluorescence Determination of selenium content.Results： Of full and complete digestion,recovery of 95.7%～104.7%,and the method detection limit was 0.12 μg/L,in 0.001 μg/ml～0.10 μg/ml range,correlation coefficient r=0.9997,the relative standard deviation of 1.5%.Conclusion： Microwave digestion of water samples,the digestive process saving agents,to prevent the loss of elements in samples tested,less interference for the determination of selenium in water.