| 热焓法测定亚硝酸根的研究 |
| |
| 引用本文： | 李玉侠,朱永春.热焓法测定亚硝酸根的研究[J].分析化学,1994,22(7):724-726. |
| |
| 作者姓名： | 李玉侠 朱永春 |
| |
| 作者单位： | 沈阳农业大学(李玉侠)，沈阳医学院化学教研室!沈阳110031(朱永春，姜凤茹) |
| |
| 摘 要： | 本文以对氨基苯磺酸与亚硝酸在酸性条件下重氮化的放热反应为基础，通过测定孤立体系中的温度变化，建立起亚硝酸根的热焓分析方法，该方法在０．０３５－０．２３０ｍｇ／ｍｌ范围内可准确测定ＮＯ＾－２的含量，相对标准偏差小于１．３６％，平均相对误差小于０．７２％，最低检限为０．０３５ｍｇ／ｍｌ。
|
| 关 键 词： | 热焓法 亚硝酸根 重氮化反应 |
Determination of Nitrite by Enthalpy Method |
| |
| Li Yuxia.Determination of Nitrite by Enthalpy Method[J].Chinese Journal of Analytical Chemistry,1994,22(7):724-726. |
| |
| Authors: | Li Yuxia |
| |
| Abstract: | An enthalpic analytical method of NO_2~- has been developed based on measuring the change of temperature in the isolated system during the diazo-reaction of o-aminoben-zenesulfonic acid , which belongs to an exothermic reaction. The amounts of NO_2~- heve been detected in the range of 0. 035-0. 230 mg/ml with RSD of 1. 36%, relative average error of 0. 72% and detection limit of 0. 035 mg/ml. |
| |
| Keywords: | Enthalpy method Nitrite Diazo-reaction |
| 本文献已被 CNKI 维普 等数据库收录！ |
