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水质的硝酸盐在还原剂的作用下,被还原成亚硝酸盐后,在硝酸盐试纸条上显紫红色,根据颜色的深浅判定水质中硝酸盐的含量。同时方法操作简单,结果准确,适用于水质硝酸盐含量的快速检测。
Under the action of the reducing agent, the nitrate of water quality is reduced to nitrite, which is marked with purple color on the test strip of nitrate. The content of nitrate in water is determined according to the color depth. At the same time the method is easy to operate and the result is accurate. It is suitable for the rapid detection of nitrate in water quality.