[Study on solid-phase-extraction spectrophotometric determination of silver with p-sulfobenzylidene-rhodanine]

[Study on solid-phase-extraction spectrophotometric determination of silver with p-sulfobenzylidene-rhodanine] Research Abstract Details 

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[Study on solid-phase-extraction spectrophotometric determination of silver with p-sulfobenzylidene-rhodanine] Abstract Text:

Lin Wang,Qiu-fen Hu,Guang-yu Yang,Jia-yuan Yin,

The color reaction of silver with p-sulfobenzylidene-rhodanine (SBDR) was studied. Based on the color reaction of SBDR with silver (I) and the solid phase extraction of its colored complex with Waters Porapak Sep-Park-C18 cartridge, a new method for the determination of micro-amount of silver (I) was studied. In the presence of pH = 2.8 citric acid-sodium hydroxide buffer solution and Tween-80 medium, SBDR can react with silver (I) to form a stable 2:1 complex. The colored complex can be extracted by C18 cartridge and eluted by ethanol (containing 5% acetic acid), and then can be determined by spectrophotometry. The molar absorptivity is 7.53 x 10(4) L x mol(-1) x cm(-1) at 520 nm. Beer's law is obeyed in the range of 0-1.2 microg x (25 mL)(-1). This method can be applied to the determination of silver in water with satisfactory results.

[Study on solid-phase-extraction spectrophotometric determination of silver with p-sulfobenzylidene-rhodanine] Publishing Authors By Initials

L Wang,QF Hu,GY Yang,JY Yin,

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[Study on solid-phase-extraction spectrophotometric determination of silver with p-sulfobenzylidene-rhodanine] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Guang pu xue yu guang pu fen xi = Guang pu

VOLUME: 24

Page Numbers: 187-9

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ISSN: 1000-0593

DAY: 16

MONTH: Feb

YEAR: 2004

[Study on solid-phase-extraction spectrophotometric determination of silver with p-sulfobenzylidene-rhodanine] Information

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LANGUAGE: chi

NlmUniqueID: 9424805

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Grant and Affiliation Information for [Study on solid-phase-extraction spectrophotometric determination of silver with p-sulfobenzylidene-rhodanine]

AFFILIATION: The School of Chemistry and Bio-Science, Yunnan University for Nationalities, Kunming 650031, China.

Country: China

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MEDLINETA: Guang Pu Xue Yu Guang Pu Fen X

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