| 废水中二硫化碳的快速测定 |
| 摘要点击 694 全文点击 621 投稿时间：1996-02-08 |
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| 中文关键词 分光光度 二硫化碳废水 快速测定 双点验证 |
| 英文关键词 wastewater fast determination spectrophotometry CS2 |
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| 中文摘要 |
| 对分光光度测定废水中二硫化碳的方法进行了改进,通过采用管式曝气代替鼓泡法,提高了汽提效率,使分析测定一个样品的时间由原1-2 h缩短到几min,实现了快速测定.方法的相对标准偏差≤3.0%,最低检出量为5/μg,若取水样10 ml,最低检出浓度为0.5 mg/L。 |
| 英文摘要 |
| This paper studied an improving method using spectrophotometry to determine CS2 in wastewater. By using tube-strip system instead of washing gas bottle, the stripping efficiency was raised, and the stripping time was reduced greatly. Nearly no declining sensibility and accuracy of analysis, the time of analysis was shortened from 1-2 hours to several minutes. The carbon disulfide in wastewater can be determined quickly. Analytical precision is <3% of RSD, mass of detection limit<5 μg, recovery >90%. If the wastewater sample is 10 ml, the lowest detection consistence is <0.5 mg/L. |
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