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硒和碲的纸上分配色层,Burstall等曾以丁醇进行研究,Weatherley提出以丙酮和丁酮体系作为硒的展开剂以测定复杂物质中的硒。我们采用上行法研究硒和碲的纸上吸附色层时,发现以含0.01—0.05M氯化钠的0.01M盐酸作展开剂,不仅可以使硒和碲分离,而且在近30种元素存在下可以检出微量碲。试验结果如下: 一、展开剂酸度:见图1,随着酸度的降低,碲的比移值急剧下降,在pH～2时,碲斑较集中,如
Selenium and tellurium on the distribution of paper color layer, Burstall et al. Had been studied butanol, Weatherley proposed acetone and methyl ethyl ketone system as a developer of selenium to determine the complex material selenium. We use the upside method to study selenium and tellurium paper adsorption color layer, we found that with 0.01-0.05M sodium chloride 0.01M hydrochloric acid as a developing agent, not only selenium and tellurium can be separated, but also in the presence of nearly 30 kinds of elements A small amount of tellurium can be detected. Test results are as follows: First, the developer acidity: see Figure 1, with the decrease of acidity, tellurium ratio decreased sharply, at pH ~ 2, the tellurium spot is more concentrated, such as