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Spectrophotometric Determination of Sulfate by Solvent Extraction with Nonionic Surfactant Span 20 and Crystal Violet

 

作者: Shigeya Sato,   Etsuro Iwamoto,   Yuroku Yamamoto,  

 

期刊: Analytical Letters  (Taylor Available online 1981)
卷期: Volume 14, issue 7  

页码: 531-534

 

ISSN:0003-2719

 

年代: 1981

 

DOI:10.1080/00032718108081425

 

出版商: Taylor & Francis Group

 

关键词: sulfate;spectrophotometric determination;solvent extraction;nonionic surfactant;span 20;crystal violet

 

数据来源: Taylor

 

摘要:

The sulfate ion is extracted into toluene with nonionic surfactant span 20 and crystal violet. A linear calibration curve was obtained between the absorbance due to crystal violet in the extract and sulfate concentrations over the range 2.5 × 10−5to 2.5 × 10−4mol 1−1(2.4 to 24 ppm) in the aqueous phase.

 

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