Preparation of 8-quinolinol immobilized adsorbents with minimum contamination for the preconcentration of trace metals in water

Several materials were tested for their usefulness as supports to immobilize 8-quinolinol through an azo bonding to prepare clean adsorbents for the preconcentration of trace metals in water. Satisfactory results were obtained with CAPCELL-NH2 (silicone-coated silica gel with alkyl amino groups), an...

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Published inBUNSEKI KAGAKU Vol. 42; no. 2; pp. 107 - 110
Main Authors KASAHARA, Issei, WILLIE, Scott N., STURGEON, Ralph E., BERMAN, Shier S., TAGUCHI, Shigeru, GOTO, Katsumi
Format Journal Article
LanguageJapanese
Published Tokyo The Japan Society for Analytical Chemistry 05.02.1993
Nippon Bunseki Kagakkai
Subjects
adsorbent with immobilized 8-quinolinol
preconcentration
trace metals in seawater
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Summary:Several materials were tested for their usefulness as supports to immobilize 8-quinolinol through an azo bonding to prepare clean adsorbents for the preconcentration of trace metals in water. Satisfactory results were obtained with CAPCELL-NH2 (silicone-coated silica gel with alkyl amino groups), and with SEPABEADS (polyvinyl polymer with alkyl amino groups). The adsorbents synthesized from them are clean and can be used for the concentration of metals prior to determination by GFAAS or ICP-MS. Six metals (Cd, Cu, Fe, Ni, Pb, and Zn) in the standard seawater sample, NASS-3, were determined by GFAAS after enrichment with 8-quinolinol bonded SEPABEADS. The results were in good agreement with the certified concentrations.
ISSN:0525-1931
DOI:10.2116/bunsekikagaku.42.2_107