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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