University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

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Inorganic compound

Classification: Inorganic compound -> lead nitrate

Citations 1

"Application Of 2-mercaptobenzothiazole-modified Silica Gel To Online Preconcentration And Separation Of Silver For Its Atomic Absorption Spectrometric Determination"
Analyst 1998 Volume 123, Issue 2 Pages 239-243
Qiaosheng Pu, Qiaoyu Sun, Zhide Hu and Zhixing Su

Abstract: 2-Mercaptobenzothiazole-modified silica gel was used for the flow injection online pre-concentration-separation and determination of silver by flame atomic absorption spectrometry. Two types of manifold, with one or two columns, were adopted. Silver ion was selectively adsorbed from 0.05 to 6 M HNO3 solution and was readily desorbed by thiourea solution The ions coexisting with Ag(I) exhibit virtually no interference in the determination with the exception of Cl-. An Ag(I) concentration ≥1 ppb could be determined reliably if a long pre-concentration time was used. The sample throughput was 60 h-1 using the two-column manifold with a pre-concentration time of 60 s. Ag in a geological sample, a copper metal sample and a lead nitrate sample was determined satisfactorily.
Silver Spectrophotometry Preconcentration Silica gel Interferences