| 对二甲氨基苯甲醛分光光度法测定水中肼 |
| 摘要点击 1004 全文点击 1567 投稿时间：1994-02-09 |
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| 中文关键词 肼 对二甲氨基苯甲醛 分光光度法 |
| 英文关键词 hydrazine dimethylaminoben spectrophotometric |
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| 中文摘要 |
| 肼与对二甲氨基苯甲醛在酸性条件下反应,生成黄色对二甲氨苄连氮。在1.00—0.002mg/L范围内,反应物浓度与颜色成正比,最大吸收波长458um.利用该原理可以测定水质中肼的含量。方法简便,灵敏度高,干扰物质少。经8个实验室对0.100、0.500、0.800mg/L肼标准溶液的验证,实验室内标准偏差3.7%、0.9%、0.6%。实验室间相对偏差4.4%、1.3%、0.9%。回收率为88%—110%。能满足水和废水中肼测定的要求。 |
| 英文摘要 |
| The condition for reaction of hydrazine with dimethylaminobenzaldehyde and the composition of complex formed in the presence of acid have been studied.The concentration of the complex is in proportion to the colour in a range of 1.00—0.002mg/L.The maximum absorbance is at 458um. The relative standard deviations with in the labs are 3.7%,0.9% and 0.6% at 0.100, 0.500 and 0.800mg/L, respectively;and those among different labs are 4.4%,1.3% and 0.9%,respectively.The recoveries are 88% to 110%. |
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