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铜和铜合金中锑的测定一般采用光度法或极谱法,应用火焰原子吸收法测定的有关资料报道不多。本文采用加金属锡生成偏锡酸作聚附剂,附加氢氧化铁共沉淀富集锑,在盐酸介质中进行原子吸收测定。试验结果表明,方法简便,准确度和精密度高,适应范围广,可测定含锑大于0.005％的铜及铜合金。仪器及主要试剂岛津AA-640-13型原子吸收分光光度计;仪器工作条件见表1。
Determination of copper and copper alloy antimony generally photometry or polarography, the application of flame atomic absorption spectrometry data reported little. In this paper, tin metal is added to produce meta-stannous acid as agglomerating agent, and ferric hydroxide is added to coprecipitate to enrich antimony, and atomic absorption is measured in hydrochloric acid medium. The test results show that the method is simple, accurate and precise, and suitable for a wide range of applications. Copper and copper alloys with antimony greater than 0.005% can be determined. Instruments and main reagents Shimadzu AA-640-13 atomic absorption spectrophotometer; instrument working conditions in Table 1.