Briscoe G B, Cooksey B G, Růzicka J, Williams M
Department of Chemistry, The University of Aston in Birmingham, Birmingham 4, England.
Talanta. 1967 Dec;14(12):1457-65. doi: 10.1016/0039-9140(67)80168-1.
The possibility of automating substoichiometric analysis by isotope dilution has been proposed previously. Automation where the analysis is based on solvent extraction has now been carried out experimentally. Preliminary experiments are described by means of which optimum conditions for this type of automated determination can be chosen and its reproducibility and selectivity checked. As an example traces of mercury down to 5 x 10(-6) g are determined and the method is applied to the analysis of low-grade cinnabar ores.
以前曾有人提出过通过同位素稀释实现亚化学计量分析自动化的可能性。现在已经对基于溶剂萃取的分析自动化进行了实验。本文描述了初步实验,通过这些实验可以选择这种自动化测定的最佳条件,并检查其重现性和选择性。作为一个例子,测定了低至5×10(-6)克的汞痕量,并将该方法应用于低品位朱砂矿石的分析。