Method for determining soil total cyanide--isonicotinic acid--barbituric acid spectrophotometric method
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 谱尼测试集团股份有限公司
- Publication Date
- 2008-09-03
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to a method for measuring total cyanide in soil, which is a method for developing color with isonicotinic acid-barbituric acid and quantitatively analyzing with an ultraviolet-visible spectrophotometer. Background technique
[0002] Cyanide is a highly toxic substance, and its toxicity to the human body is mainly due to its combination with ferricytochrome oxidase to generate cyanide ferricytochrome oxidase, which loses the function of transferring oxygen and causes tissue hypoxia asphyxia. The main source of cyanide in soil is man-made pollution sources, such as small gold mine mining, smelting, electroplating, organic chemical industry, mineral processing and other industrial waste water polluting nearby and downstream soil resources. When people use these land resources, they will affect people's health. constitutes a great health hazard. At present, there is no method for analyzing total cyanide in soil by isonicotinic acid-b...