| 双波长分光光度法测定含硝酸盐水样中二甲基乙酰胺 |
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| 引用本文： | 宋玉栋,常风民,周岳溪.双波长分光光度法测定含硝酸盐水样中二甲基乙酰胺[J].中国环境监测,2010,26(1):8-11. |
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| 作者姓名： | 宋玉栋 常风民 周岳溪 |
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| 作者单位： | 1. 中国环境科学研究院水污染控制技术研究所,北京,100012
2. 中国环境科学研究院水污染控制技术研究所,北京,100012;中国矿业大学(北京校区)化学与环境工程学院,北京,100083 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项(2008ZX07207-004);;环境保护部专项(黄河流域水污染状况调查与水体污染控制对策研究) |
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| 摘 要： | 紫外分光光度法是目前水中N,N-二甲基乙酰胺(DMAC)的常用分析方法。研究结果表明,硝酸盐对紫外分光光度法测定DMAC具有很强的干扰。本研究中提出一种双波长法用于消除水中硝酸盐的干扰作用,所采用的波长对为194.0nm和219.0nm。精密度实验及加标回收实验表明,方法的相对标准偏差在4%以内,回收率为95%~102%,可有效消除硝酸盐的干扰作用。
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| 关 键 词： | 紫外分光光度法 双波长分光光度法 硝酸盐 DMAC |
| 收稿时间： | 2009/3/21 0:00:00 |
Determination of Dimethylacetamide (DMAC) in Nitrate-containing Water Samples by Dual-Wavelength Spectrophotometry |
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| SONG Yu-dong.Determination of Dimethylacetamide (DMAC) in Nitrate-containing Water Samples by Dual-Wavelength Spectrophotometry[J].Environmental Monitoring in China,2010,26(1):8-11. |
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| Authors: | SONG Yu-dong |
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| Institution: | 1.Research Center of Water Pollution Control Technology;Chinese Research Academy of Environmental Science;Beijing 100012;China |
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| Abstract: | Ultraviolet spectrophotometry is widely used in the determination of dimethylacetamide(DMAC) in water.It is found in this study that nitrate has significant interference on the determination of DMAC.A novel dual-wavelength spectrophotometry is proposed for the determination of DMAC in water samples containing nitrate.The results indicate that the interference of nitrate is well eliminated using wavelength of 194.0nm and 219.0nm for the determination of DMAC.The recovery rates of the method are 100%~102% and... |
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| Keywords: | Ultraviolet spectrophotometry Dual-wavelength spectrophotometry Nitrate Dimethylacetamide |
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