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| 修正的凯氏法-纳氏试剂光度法测定固体废物中总氮 |
| Determ ination of Total Nitrogen in Solid Waste by M odified Kjeldahl -Nessler ’ Reagent Colorimetric M ethod |
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| DOI： |
| 中文关键词: 总氮 凯氏法 纳氏试剂 分光光度法 固体废物 |
| 英文关键词: Totalnitrogen Modified Kjeldahl Nessler’reagent Spectrophotometry Solid wastes |
| 基金项目: |
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| 摘要点击次数: 1098 |
| 全文下载次数: 1942 |
| 中文摘要: |
| 采用修正的凯氏法消解、凯氏定氮仪定氮、纳氏试剂分光光度法测定固体废物中的总氮, 对催化剂、硝基化试剂、消解时间 、消解温度等试验参数作了优化, 方法检出限为0.012 5 g/kg,RSD ≤ 3.5% , 加标回收率为90.9% ～ 109% 。 |
| 英文摘要: |
| The method wasestablished fordetermination oftotalnitrogen in solid wastesby modified Kjel dahl-Nessler’reagentspectrophotometry. The experimentparameters were optimized in catalyzer, nitrified reagent, time and temperature ofdigestion. The detection limitofthe method was0.012 5 g/kg, RSD lessthan3.5% ,the recoveriesfrom 90.9% to109%. |
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