액체 크로마토그래피에서 Hexadecyl $NtnOenH_4$-Octadecylsilanized silicas(ODS)를 이용한 혼합금속용액으로부터 Cu(II)의 분리
Separation of Cu(II) from Metal Mixture Solution Using a Hexadecyl $NtnOenH_4$-Octadecylsilanized Silicas(ODS) in Liquid Chromatography
분석과학 / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1995, v.8 no.3, pp.299-304
신영국
김시중
김해중
신영국,
김시중,
&
김해중.
(1995). 액체 크로마토그래피에서 Hexadecyl <TEX>$NtnOenH_4$</TEX>-Octadecylsilanized silicas(ODS)를 이용한 혼합금속용액으로부터 Cu(II)의 분리, 8(3), 299-304.
초록
정지상으로서 N, N'-bispalmtoyl 1, 12-diaza-3, 4:9,10-dibenzo-5, 8-cyclopentadecane (hexadecyl $NtnOenH_4$)-octadecylsilanized silicas(ODS)와 이동상으로 물을 사용하여 Ba(II), Cr(II), Fe(II) 및 Cu(II)의 흡착특성을 조사하였다. 수용액상 Ba(II), Cr(II), Fe(II) 및 Cu(II)의 결합상수와 흡착도를 조사한 결과 그 순위는 Ba(II)$NtnOenH_4$-octadecylsilanized silicas(ODS)에 흡측되는 금속이온의 농도 증가는 cation chelation mechanism에 의해 설명할 수 있었다. 또한 수용액상에서 Ba(II), Cr(II), Fe(II) 및 Cu(II)이 혼합된 용액에서 Cu(II)의 분리효율이 다른 이온들에 비해서 좋게 나타남을 알 수 있었다.
- keywords
-
binding constant,
degree of sorption,
separation,
cation-chelation mechanism
Abstract
The adsorption behaviors of Ba(II), Cr(II), Fe(II) and Cu(II) on the N, N'-bispalmtoyl 1, 12-diaza-3, 4:9, 10-dibenzo-5, 8-cyclopentadecane (hexadecyl $NtnOenH_4$)-octadecylsilanized silicas(ODS) were investigated with water as the mobile phase. Binding constants for metal ions were measured in aqueous solution. The order of binding constants(K) and the degree of sorption(E) were Ba(II)$NtnOenH_4$-octadecyisiianized silicas(ODS) increased with concentration of metal ions, and the degree of adsorption was found to be affected by the cation-chelation mechanism. The experimental results showed good efficiency for separation of Cu(II) from mixtures of Ba(II), Cr(II), Fe(II) and Cu(II) in aqueous solution.
- keywords
-
binding constant,
degree of sorption,
separation,
cation-chelation mechanism