| 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 |
| DOI： |
| 分类号: |
| 基金项目: |
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| Direct Determination of Trace Mercury in Seawater with DMA -80 Automatic Mercury Analyzer |
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WANG Dong-jin
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Lianyungang Environmental Monitoring Central Station, Lianyungang, Jiangsu 222001, China
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| 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 |
