| 异烟酸-巴比妥酸分光光度法测定水中总氰化物的探讨 |
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| 引用本文： | 曾嘉.异烟酸-巴比妥酸分光光度法测定水中总氰化物的探讨[J].环境监测管理与技术,2012,24(3):72-74. |
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| 作者姓名： | 曾嘉 |
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| 作者单位： | 上海市环境监测中心,上海,200030 |
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| 摘 要： | 对异烟酸-巴比妥酸分光光度法测定水中总氰化物的试验条件进行了探讨,分析了蒸馏时馏出液体积对结果的影响,明确了显色剂的配制及保存时效等问题。提出样品预蒸馏时可适当减少馏出液的收集体积,测定结果无显著性差异;将氯胺T、异烟酸-巴比妥酸试剂在冰箱中于4℃保存,在正常情况下可稳定使用4周。
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| 关 键 词： | 总氰化物 异烟酸-巴比妥酸分光光度法 水质 |
Discussion on Determination of Total Cyanides in Water by Isonicotinic Acid/Barbituric Acid Spectrophotometry |
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| ZENG Jia.Discussion on Determination of Total Cyanides in Water by Isonicotinic Acid/Barbituric Acid Spectrophotometry[J].The Administration and Technique of Environmental Monitoring,2012,24(3):72-74. |
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| Authors: | ZENG Jia |
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| Affiliation: | ZENG Jia(Shanghai Environmental Monitoring Center,Shanghai 200030,China) |
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| Abstract: | The test condition was discussed on determination of total cyanide in water by isonicotinic acid/barbituric acid spectrophotometry.Influence factor of distillate liquid volumes during distillation time on the test was analyzed.Preparation of colour-display reagent and store time were identified.It made some suggestion such as reducing distillate quantity collected during distillation at no significant differences of test results,storing solution of chloramine-T and isonicotinic acid-barbituric acid in a refrigerator to keep temperature at 4 ℃,usually which solution could be stable in 4 weeks. |
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| Keywords: | Total cyanide Isonicotinic acid-barbituric acid spectrophotometry Water quality |
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