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目的:为开展职业病体检、人群本底水平调查等大批量尿样中汞的检测提供简单、省时、可靠的检验方法。方法:采用原子荧光法对经过水浴消解的尿样进行汞含量的检测。结果:本法最低检出限0.0016μg/L,测定范围在0~100μg/L有良好的线性关系,r=0.9994;精密度试验2份不同尿样的RSD分别为2.31%和1.12%。回收率试验2份尿样分别加入低、高两种不同浓度的标准其回收率分别为97.0%、98.2%、98.6%、98.9%。结论:水浴消解-原子荧光光谱法是快速、简便、可靠的测定尿汞的检测方法。
OBJECTIVE: To provide a simple, time-saving and reliable test method for the detection of mercury in high-volume urine samples such as physical examination, population background level survey and so on. Methods: The mercury content of urine samples digested by water bath was detected by atomic fluorescence spectrometry. Results: The minimum detection limit of this method was 0.0016 μg / L with a good linear relationship between 0-100 μg / L, r = 0.9994. The RSDs of two different urine samples in precision test were 2.31% and 1.12%, respectively. The recoveries of two urine samples were added to low and high levels of two different concentrations of the recovery rates were 97.0%, 98.2%, 98.6%, 98.9%. Conclusion: Digestion with water bath - atomic fluorescence spectrometry is a rapid, simple and reliable method for the determination of urinary mercury.