Abstract
Eriochrome cyanine R(chrome azurol S) is used as a color reagent to determine Sc in the presence of phosphatidyl choline, eta = 3.7 * 10/sup 4/ (4.5 * 10/sup 4/). This method has been connected to extraction separation to determine Sc in the presence of rare earth elements, and good results have been obtained. Phosphatidyl choline(PC) is a biochemical reagent, which can be used as a surfactant. It has been reported that chrome azurol S(CAS) can be used to determine Be in the presence of PC but it has not been reported that eriochrome cyanine R(ECR) and CAS can been used to determine Sc in the presence of PC. This paper has put forward a method by which Sc can be determined. ECR (CAS) has been used as a color reagent and PC as a surfactant. Conditional experiments have been made and this method has been connected to extraction separation. Tributyl phosphate (TBP) extracts Sc from rare earth elements to make a determination and good results have been obtained.
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