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提出了用混合酸(盐酸+硝酸)溶解样品。在混合酸介质中,于同一份溶液里,用火焰原子吸收分光光度法测定锡铅合金中主含量元素锡、铅。该法简便、快速、实用,共存离子不相互干扰,回收率在98%~102%间。所测样品和国家标准样品均获得令人满意的结果。
It is proposed to dissolve the sample with a mixed acid (hydrochloric acid + nitric acid). In a mixed acid medium, in the same solution, the main content of tin and lead in tin-lead alloy was determined by flame atomic absorption spectrophotometry. The method is simple, rapid, practical, co-existing ions do not interfere with each other, the recovery rate of 98% to 102%. The tested samples and national standard samples all achieved satisfactory results.