The pre-processing requirements of the sample of the експериментална електрична пећ високотемпературна метода пепела

1. Whether the sample should be pretreated, how to pretreat it, and what method of sampling should be taken into consideration should be based on the characteristics of the sample, the requirements of the inspection, and the performance of the analytical instrument used;

2. Pretreatment should be avoided or used as little as possible, in order to reduce the operation steps, speed up the analysis, and reduce the adverse effects brought by the pretreatment process, such as the introduction of pollution and the loss of the object to be tested;

3. When the sample is processed by the decomposition method, the decomposition must be complete without causing the loss of the tested component, and the recovery rate of the tested component should be high enough;

4. The sample cannot be contaminated, and the components to be tested and substances that interfere with the determination cannot be introduced;

5. The consumption of reagents should be as little as possible, the method is simple and easy, fast, and less pollution to the environment and personnel.