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| 新体系催化动力学光度法测定痕量亚硝酸根 | |
| 引用本文： | 孙彩兰,蹇瑞红,姜维民.新体系催化动力学光度法测定痕量亚硝酸根[J].分析试验室,2001,20(2):34-36. |
| 作者姓名： | 孙彩兰 蹇瑞红 姜维民 |
| 作者单位： | 1. 抚顺职业技术学院化工系, 2. 抚顺石化公司催化剂厂研究所, 3. 抚顺石化公司石油三厂, |
| 摘 要： | 基于增敏剂吐温 - 80存在下亚硝酸根催化过氧化氢氧化中性红的反应 ,建立了测定痕量亚硝酸根的新催化动力学光度法。方法的灵敏度较常规方法提高了 2 .2倍 ,测定的线性范围为 2～ 1 0 μg/L,检出限为 2 .7× 1 0 - 10 g/m L。已用于测定水样中 NO2 - 的含量 |
| 关 键 词： | 亚硝酸根 催化动力学光度法 表面活性剂 水 痕量分析 |
| 文章编号： | 1000-0720(2001)02-0034-03 |
Determination of Trace Nitrite by Catalytic Photometry in System of Nonionic Surfactant |
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| SUN Cai,lan.Determination of Trace Nitrite by Catalytic Photometry in System of Nonionic Surfactant[J].Chinese Journal of Analysis Laboratory,2001,20(2):34-36. | |
| Authors: | SUN Cai lan |
| Abstract: | A new catalytic spectrophotometric method for determination oftrace NO2- was developed. The method was based on the oxidation of neutral red by H2O2 catalyzied by NO2-in the presence of Tween-80. Because of the addition of Tween-80, the sensitivity was raised by 2.2 times. The linear range of determination is 2～12 μg/L with detection limit of 2.7×10-10 g/mL. The method was applied to the determination of trace NO2- in water samples. |
| Keywords: | Catalytic spectrophotometry Surfactant Nitrite |
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