For a solid or liquid sample, the sample is firstly processed as following: step A, ammonia water is added into the sample, and ethanol is added after reaction;

对于固体和液体样品，先对样品进行如下处理：A） 样品中加入氨水，反应后加入乙醇；

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For a solid or liquid sample, the sample is firstly processed as following: step A, ammonia water is added into the sample, and ethanol is added after reaction;

对于固体和液体样品，先对样品进行如下处理：A） 样品中加入氨水，反应后加入乙醇；

youdao