| 主次波长分光光度法测定水中氨氮 |
| 摘要点击 721 全文点击 642 投稿时间：1992-09-22 |
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| 中文关键词 主次波长 分光光度法 氨氮 |
| 英文关键词 primary-secondary wavelength spectrophotometry NH3-N |
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| 中文摘要 |
| 在碱性介质中,氨与Nessler试剂反应生成黄色化合物.用依据悬浮颗粒对光吸收原理建立显色反应的主次双波长光度测定氨氮(NH3-N)新方法.方法检出限0.02mg/L,精密度RSD<2%,加标回收率93%-105%,且计算曲线稳定,适合于天然水、废水等环境水质监测. |
| 英文摘要 |
| In alkaline solution NH3-N may react with Ness-ler's agent forming a yellow compound. Based on the light absorption property of the formed suspended particle a new method for determining NH3-N by primary secondary wavelength spectro-photometry was developed. The detection limit of the method for NH3-N is 0.02 mg/L, RSD<2% and the recovery is 93%-105%. The method is suitable for the determination of NH3-N natural water and polluted water. |
