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| 次溴酸盐氧化法测定海水中氨氮试验条件的优化 |
| Optimization of Test Conditions of Ammonia Nitrogen in Seawater by Hypobromite Oxidimetry Method |
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| DOI： |
| 中文关键词: 氨氮 次溴酸盐氧化法 海水 |
| 英文关键词: Ammonia nitrogen Hypo-bromate oxidimetry method Sea water |
| 基金项目: |
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| 摘要点击次数: 1615 |
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| 中文摘要: |
| 对次溴酸盐氧化法测定海水中氨氮的试验条件进行优化，考察了温度、氧化时间、次溴酸盐用量、氨基酸等影响因素，以及干扰离子对测定的影响。方法在0 mg/L～0.100 mg/L范围内线性良好，检出限为0.8 μg/L，标准溶液平行测定的RSD为4.4%，能力验证样品的测定结果合格。 |
| 英文摘要: |
| The experimental conditions for the determination of ammonia nitrogen in seawater by hypobromite oxidimetry method were optimized. The influence of reaction time, temperature, hypobromite's content and amino acids on the quantitation. Interfering ion and other effects on the experimental results were discussed too. The calibration curve showed a good linearity from 0 mg/L to 0.100 mg/L, the detection limit is 0.8 μg/L. Replicate analysis of standard solution shows the relative standard deviation of 4.4%. Test results of national standard material obtained from current method meet the requirement. |
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