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Investigation and Analytical Application of the β-Type Chelate of Lanthanoids With Chlorophosphonazo III

 

作者: Gao Jinzhang,   Zhu Xiangming,   Kang Jingwan,   Bai Guangbi,  

 

期刊: Analytical Letters  （Taylor Available online 1985）
卷期: Volume 18, issue 12  

页码: 1507-1517

 

ISSN:0003-2719

 

年代: 1985

 

DOI:10.1080/00032718508066229

 

出版商: Taylor & Francis Group

 

关键词: Lanthanoids Analysis;β-Type Chelate;Chlorophosphonazo III

 

数据来源: Taylor

 

摘要:

The color-reaction of chlorophosphonazo III (CPA III) with lanthanide ions has been studied. It is found that under optimum conditions a light and heavy rare earth binuclear chelate with CPA III, of which the ratio of the metals to CPA III is 1:1:3, can be formed and used for determination of trace amounts of light rare earths in the presence of heavy rare earths. The molar absorptivity maximum of the chelate is 5x1051 mol−1cm−1.

 

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