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A Simple Colorimetric Assay for L-Dopa in the Presence of Tyrosine Using the Phosphotungstic Acid Reagent

 

作者: Sherry Scott,   E.J. Behrman,  

 

期刊: Analytical Letters  （Taylor Available online 1988）
卷期: Volume 21, issue 2  

页码: 183-191

 

ISSN:0003-2719

 

年代: 1988

 

DOI:10.1080/00032718808055745

 

出版商: Taylor & Francis Group

 

关键词: L-DOPA;tyrosine;phosphotungstic acid reagent

 

数据来源: Taylor

 

摘要:

L-DOPA (3,4-dihydroxy-L-phenylalanine) reduces the phosphotungstic acid reagent whereas tyrosine does not. We have modified the usual assay conditions to give a relatively stable blue color while avoiding the use of cyanide by lowering the pH.

 

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