ペンタエチレンヘキサミン固定化繊維状吸着剤を用いる金（III）の固相抽出分離

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タイトル別名
  • Solid-phase Extraction of Gold(III) Using a Fibrous Adsorbent Immobilizing Pentaethylenehexamine

抄録

Pentaethylenehexamine was immobilized on acrylic fiber in 2-propanol/water at 100°C for 15 h. The obtained fibrous adsorbent was able to adsorb gold(III) effectively at pH 1. The adsorption capacity for gold(III) was 2.5±0.1 mmol g−1 (mean±standard deviation, n = 3). The adsorption was rapid; 80% of gold(III) was adsorbed even at a flow rate of 63 mL min−1 when 0.10 g of the fibrous adsorbent and 100 mL of a solution containing 5.1×10−2 mmol L−1 of gold(III) at pH 1 were used. The adsorbed gold(III) could be quantitatively desorbed using 1 mol L−1 hydrohloric acid containing 0.1 mol L−1 thiourea. The fibrous adsorbent barely adsorbed 21 kinds of elements, including alkaline earth elements, such as calcium(II), and transition metal elements, such as manganese(II) and iron(III), at pH 1. The solid-phase extraction using the fibrous adsorbent was applicable to the separation of gold(III) in a real wastewater.

収録刊行物

  • 分析化学

    分析化学 63 (10), 785-789, 2014

    公益社団法人 日本分析化学会

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