The stability of nitric oxide in acid solutions

被引：4

作者：

Gabor, G

机构：

[1] Ctr. Biologies Eval. Res., Food D., Bethesda, MD 20892

来源：

MICROCHEMICAL JOURNAL | 1997年 / 56卷 / 02期

关键词：

D O I：

10.1006/mchj.1996.1446

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Aqueous acid solutions of nitric oxide (NO) are used as a source for this species in chemical and biological experiments. To utilize known quantities of NO, it is necessary to determine the escape rate of NO from these solutions. Escape rates at constant temperature are concentration dependent. The rate constants at 25 degrees C are 3.26 x 10(-6), 2.7 x 10(-7), and 1.44 x 10(-7) min(-1) far 0.2, 0.01, and 0.001 mol/L solutions, respectively. The escape rates are further reduced upon lowering the temperature. The half times of escape from 0.2 and 0.01 mol/L solutions are 18 and 280 min at 25 degrees C but 350 and 490 min at 0 degrees C, respectively. (C) 1997 Academic Press.

引用

收藏

页码：171 / 176

页数：6

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