Flow-injection spectrophotometric determination of cadmium with quinolylazo compound after on-line separation using a silica gel column

2-[2-(4-Methylquinolyl)azo]-5-diethylaminophenol(QADP) reacts with cadmium in aqueous ethanol and the molar absorptivity of the QADP—cadmium complex is the highest (1.51 × 1O 5 M −1 cm −1, γ max 569 nm) of the reagents reported previously. A flow-injection spectrophotometric determination of cadmium...

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Published in:Talanta (Oxford) 1994-05, Vol.41 (5), p.799-803
Main Authors: Ishizuki, Tomosuke, Matsumoto, Koji, Yuchi, Akio, Ozawa, Tadao, Yamada, Hiromichi, Wada, Hiroko
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Language:English
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Analytical chemistry
Chemistry
Exact sciences and technology
Spectrometric and optical methods
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container_issue 5
container_start_page 799
container_title Talanta (Oxford)
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creator Ishizuki, Tomosuke
Matsumoto, Koji
Yuchi, Akio
Ozawa, Tadao
Yamada, Hiromichi
Wada, Hiroko
description 2-[2-(4-Methylquinolyl)azo]-5-diethylaminophenol(QADP) reacts with cadmium in aqueous ethanol and the molar absorptivity of the QADP—cadmium complex is the highest (1.51 × 1O 5 M −1 cm −1, γ max 569 nm) of the reagents reported previously. A flow-injection spectrophotometric determination of cadmium with QADP after on-line separation using silica gel column was proposed. A 450 μg/l cadmium concentration could be determined in the presence of 13 mg/l zinc, 83 mg/l lead and 11 mg/l iron.
doi_str_mv 10.1016/S0039-9140(94)80065-0
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subjects Analytical chemistry
Chemistry
Exact sciences and technology
Spectrometric and optical methods
title Flow-injection spectrophotometric determination of cadmium with quinolylazo compound after on-line separation using a silica gel column
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