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Spectrophotometric Determination of Gadolinium(III) With O-Hydroxyhydroqoinonephthalein in Mixed Micelles of N-Hexadecylpyridinilm Chloride and Brij 35

 

作者: Ituso Mori,   Yoshikazu Fujita,   Minako Toyoda,   Kayo Tanaka,  

 

期刊: Analytical Letters  （Taylor Available online 1992）
卷期: Volume 25, issue 12  

页码: 2377-2388

 

ISSN:0003-2719

 

年代: 1992

 

DOI:10.1080/00032719208017969

 

出版商: Taylor & Francis Group

 

关键词: Spectrophotometry;Gadolinium(III);o-hydroxy-hydroquinonephthalein;Mixed micellar media;N-pyridinium chloride-Brij 35

 

数据来源: Taylor

 

摘要:

A sensitive, simple and selective spectrophotometric method for the determination of gadolinium(III) is proposed using o-hydroxyhydroquinonephthalein(Qnph), by analogy with phenylfl-uorone(Phfl), in the presence of N-hexadecylpyridinium chlo-ride(HPC)-Brij 35 mixed surfactants. The calibration curve is rectilinear in the range of 0 – 16.0 μg per 10 ml at 590 nm with an apparent absorption coefficient(ε) of 1.2 × 1051 cm−1mol−1and Sandell sensitivity of 0.0013 μg/cm2gado-linium(III).

 

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