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Determination of Pyrophosphate and Trace Amounts of Orthophosphate in Solution

 

作者: L.A. Douglas,   J.F.B. Field,  

 

期刊: Analytical Letters  （Taylor Available online 1975）
卷期: Volume 8, issue 3  

页码: 195-203

 

ISSN:0003-2719

 

年代: 1975

 

DOI:10.1080/00032717508058198

 

出版商: Taylor & Francis Group

 

关键词: Pyrophosphate;orthophosphate;ammonium molybdate antimony potassium tartrate;ascorbic acid

 

数据来源: Taylor

 

摘要:

A colorimetric method of determining pyrophosphate in the presence of trace amounts of orthophosphate is described. It involves conversion of pyrophosphate to orthophosphate in a heated acid molybdate solution and subsequent addition of ascorbic acid to the orthophosphate formed for development of a blue color. The method is accurate and precise, and gives quantitative recovery of pyrophosphate added to soil extracts.

 

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