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Spectrophotometric Analysis of Systems with Non-Additive Absorbances

 

作者: A.M. Wahbi,   MagdaA.H. Barary,  

 

期刊: Analytical Letters  （Taylor Available online 1983）
卷期: Volume 16, issue 20  

页码: 1617-1623

 

ISSN:0003-2719

 

年代: 1983

 

DOI:10.1080/00032718308077165

 

出版商: Taylor & Francis Group

 

关键词: Spectrophotometry;Deviation from Beer's Law;interaction between p-hydroxybenzoic acid and PIT;the increment method;evaluation by least squares

 

数据来源: Taylor

 

摘要:

The increment method under least squares has been applied to the spectrophotometric determination of p-hydroxybenzoic acid complexed with polyvinylpyrrolidone in water. The mean percentage recovery for six prepared mixtures was found to be 99.49 + 1.25. When the Amaxmethod has been applied, the mean percentage recovery was found to be 90.99+5.59. The theoretical bases of the method have been discussed.

 

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