ドデシルベンゼンスルホン酸塩による銅(II)-α,β,γ,δ-テトラキス(1-メチルピリジニウム-4-イル)ポルフィン錯体のイオン対抽出

概要

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A cationic copper(II) complex of α,β,γ,δ-tetrakis-(1-methylpyridinium-4-yl) porphin was extracted with dodecylbenzene sulfonate. Polyoxyethylene nonyl phenyl ether with average 7.5 ethylene oxide units (POE-7.5) was used as an extractant, based on the fact that a dilute micellar solution of POE-7.5 separates into two phases above 0 ℃ (the cloud point). The complex was extractable into a lower phase (about 0.6ml) rich in POE-7.5 from 60 g of the micellar solution, and the recovery yield of the complex was 60 %. 4-Methylpyridine (4-Py) was effective in increasing the recovery yield, which rose to 95 % by adding a 1000-fold excess of 4-Py in relation to the copper(II) concentration. This is probably due to adduct formation of the complex with 4-Py. This technique, in combination with a dualwavelength spectrophotometric method, was applied to the determination of copper(II) in water at several ppb level.
社団法人日本分析化学会の論文
1982-08-05