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前言在我们的前一篇报告中,介绍了钯一碳催化剂用硝酸一高氯酸湿法氧化处理,然后用原子吸收标准加入法测定其中钯含量的方法。这种测定法不受样品活性碳基体和试液酸度的影响,可以得到相当准确的测定结果,但标准加入法对于大量样品的测试,显得比较繁冗。本工作在干扰试验的基础上,进一步改进用原子吸收直接比较法测定。方法简便、快速,精确度与加入法相似,准确度符合工艺要求。该法适用于大批样品的控制分析。实验 (一)仪器(包括操作条件)和主要试剂同前法。
Preface In our previous report, a method was described for the wet oxidation of palladium-carbon catalyst with nitric acid-perchloric acid and the determination of the palladium content by atomic absorption standard addition. This assay is not affected by the sample’s active carbon matrix and the acidity of the test solution, which gives fairly accurate measurements, but the standard addition method is laborious for testing a large number of samples. This work is based on the interference test, to further improve the direct comparison with atomic absorption determination. The method is simple, fast, and accuracy is similar to adding method, the accuracy meets the technical requirements. The law applies to a large number of sample control analysis. Experiment (a) equipment (including operating conditions) and the main reagent with the former method.