Compared with common sample pretreating method of organic solvent extraction, this method showed the advantages of simple procedure, very little loss of analyzed sample, rapidity and sensitivity.
相比目前常用的有机溶剂萃取的样品处理方法，该方法显示了步骤简单、待分析物损失量小和快速灵敏的优点。
Another pretreating method was that the sample was dissolved in nitric acid and perchloric acid. It proved that the method was simple and convenient with accurate results.
介绍了用硝酸及高氯酸处理试样后进行铁、铜含量的测定分析，方法简便，回收率高，分析结果令人满意。
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