引用本文:王冬进.利用DMA-80自动测汞仪直接测定海水中痕量汞[J].环境监控与预警,2010,2(1):24-26
WANG Dong-jin.Direct Determination of Trace Mercury in Seawater with DMA -80 Automatic Mercury Analyzer[J].Environmental Monitoring and Forewarning,2010,2(1):24-26
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利用DMA-80自动测汞仪直接测定海水中痕量汞
王冬进
连云港市环境监测中心站,江苏 连云港 222001
摘要:
采用DNA-80自动测汞仪直接测定海水中的痕量汞,详细介绍了干燥时间、分解温度、释放温度等分析条件的优化选择。试验结果,方法在0.4~400ng范围内线性良好,检出限为2×10^-5mg/L,方法操作简单,灵敏度高,结果准确。
关键词:  海水  痕量汞  直接测定  检出限
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Direct Determination of Trace Mercury in Seawater with DMA -80 Automatic Mercury Analyzer
WANG Dong-jin
Lianyungang Environmental Monitoring Central Station, Lianyungang, Jiangsu 222001, China
Abstract:
Trace mercury in seawater was directly determined with DMA - 80 Automatic Mercury Analyzer. Optimization on the choice of analytical condition, such as dry time, decomposition temperature and reduction temperature were elaborated. The result showed that the technique was in a good linear relation in the range between 0.4 -400 ng and the detection limits 2 × 10^-5 mg/L, The technique is easy to use with high sensitivity and accuracy.
Key words:  seawater  trace mercury  direct determination  detection limit