2-(2-チアゾリルアゾ)-4-メチル-5-スルホメチルアミノ安息香酸を用いる銅,ニッケル,コバルトの高速液体クロマトグラフィー

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タイトル別名
  • ２‐（２‐チアゾリルアゾ）‐４‐メチル‐５‐スルホメチルアミノ安息香酸を用いる銅，ニッケル，コバルトの高速液体クロマトグラフィー
  • High performance liquid chromatography of copper, nickel, cobalt chelates with 2-(2-thiazolylazo)-4-methyl-5-(sulfomethylamino) benzoic acid
  • 2 2 チアゾリルアゾ 4 メチルー5 スルホメチルアミノ アンソクコウサン

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抄録

The reversed-phase ion-pair chromatography of 2-(2-thiazolylazo)-4-methyl-5-(sulfomethylamino) benzoic acid (TAMSMB) chelates with copper (II), nickel (II), cobalt (III), and TAMSMB was studied using ODS columns, and the method for the simultaneous determination of copper, nickel, and cobalt was developed. The effects of the composition of the eluent on the retention were examined. The watermethanol (70: 30 v/v) solution containing 0.075 mol dm-3 sodium chloride, 10-4 mol dm-3 TAMSMB and 0.01 mol dm -3 acetate buffer (pH 4.04.3) was the best as eluent. The procedure for the determination: A sample solution was taken into a 25-cm3 volumetric flask, and 2 cm3 of TAMSMB solution (5×10-3 mol dm-3), 5 cm3 of acetate buffer (0.1 mol dm-3, pH 5), and 2 cm3 of potassium periodate solution (0.4 %) were added, and the solution was diluted to the mark. This solution (100 mm3) was injected into a glass column (4 mm I. D.× 200 mm, ODS-silica), and the eluent was delivered at the flow rate (0.70. 8) cm3 min -1 TAMSMB chelates eluted in the order of cobalt, copper, and nickel were detected at 580 nm. The calibration curves were linear for (5120)ng Co, (280)ng Cu, (5140)ng Ni, and the limits of detection (S/N= 3) were Co 5 ng, Cu 2 ng, Ni 5 ng. This method was applied to the determination of cobalt, copper, and nickel in a glass sample. The chromatography using a micro column (0.5 mm I. D.×95 mm) was also studied.

収録刊行物

  • 分析化学

    分析化学 32 (10), 600-605, 1983

    公益社団法人 日本分析化学会

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