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氰化物是一种剧毒物质,除少数稳定的络合物(如铁氰化钾)基本无毒外,多有剧毒。氰化物进入人体后与高铁细胞色素氧化酶结合,生成氰化高铁细胞色素,致使氧化酶失去传递氧的作用,引起组织缺氧窒息。CN~-在饮水中一般存在限量为10ppb以下,水体中含10ppbCN~-时对鱼类有毒害,含30ppb吋影响水体中生物净化作用,因此,氰是环境监测中必不可少的重要项目之一。
Cyanide is a highly toxic substance, with the exception of a few stable complexes (such as potassium ferricyanide) that are largely non-toxic and poisonous. Cyanide into the human body with high-speed ferricyanide pigment oxidase, generating cyanidation of high-speed ferricyanide, resulting in the loss of oxygen to pass the role of oxygen, causing tissue hypoxia asphyxia. CN ~ - Generally, there is a limit of 10ppb in drinking water, 10ppbCN ~ - in water, toxic to fish, and 30ppb-inch affects the biological purification in water. Therefore, cyanide is an indispensable item in environmental monitoring one.