含能材料2012，Vol.20Issue(6)：789-793,5.DOI:10.3969/j.issn.1006-9941.2012.06.028
后化学发光法检测水中微量偏二甲肼
Determination of Trace Unsymmetrical Dimethyl Hydrazine in Water by Luminol-Potassium Periodate Post-chemiluminescence Method
吴婉娥 1孟晓红 1张会坛1
作者信息
- 1. 第二炮兵工程学院503教研室,陕西西安 710025
- 折叠
摘要
Abstract
A post chemiluminescence(PCL) phenomenon was observed when unsymmetrical dimethyl hydrazine(UDMH) solution was injected into a solution after the finish of CL reaction of alkaline luminol and potassium periodate. A new method for the determination of trace UDMH was established based on the studies of the CL reaction conditions including the concentration of potassium periodate and luminol,the length of tube,the velocity of solution flow,the luminal alkalinity(NaOH) and other experiments. The linear response range of this method was from 1.0 ×10-6 to 1.0×10-4 g· L-1 with a detection limit of 3.3×10-7 g· L-1. The relative standard deviation for 4.0×10-6 g·L-1 UDMH solution was 2.7% for 11 tests. This method has been used to determine UDMH in water with satisfactory results. The PCL mechanism is also discussed briefly.关键词
分析化学/后化学发光/高碘酸钾/鲁米诺/偏二甲肼Key words
analytical chemistry/ post-chemiluminescence reaction/ potassium periodate/ luminol/ unsymmetrical dimethyl hydrazine分类
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吴婉娥,孟晓红,张会坛..后化学发光法检测水中微量偏二甲肼[J].含能材料,2012,20(6):789-793,5.
