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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 43, Number 1
JKCSEZ 43(1)
February 20, 1999

Title	Adsorptive Stripping Voltammetry of Ge(IV)-Mercaptoacetic Acid Complex Ge(IV)-Mercaptocetic Acid 착물에 의한 흡착벗김 전압-전류법
Author	Chan-il Park, Suk-Hee Seong, Ki-Won Cha 박찬일, 성숙희, 차기원
Keywords
Abstract	Mercaptoacetic acid를 이용하여 흡착벗김 전압전류법으로 미량의 게르마늄을 정량하는 방법을 연구하였다. 이때 지지전해질은 0.25 M NaCl 용액(pH 6.0)을 사용하였고, mercaptoacetic acid의 농도는 5.0×10-6M이 되도록 조절하여 실험하였다. Ge(IV)-Mercaptoacetic acid 착물의 봉우리 전위는 -1.402V vs. Ag/AgCl에서 나타났다. 착물의 봉우리 전위에 미치는 NaCl의 농도, mercaptoacetic acid의 농도, 축적 시간등에 대하여 조사하였다. 또한, Amberlite IRC-718 킬레이트 수지를 다른 이온들로 부터 Ge(IV)을 분리하는데 적용하였다. The adsorptive stripping voltammetric determination method of trace germanium (IV) using mercaptoacetic acid as a ligand was studied. Optimal conditions were found to be 0.25 M NaCl solution (pH 6.0) containing mercaptoacetic acid concentration of 5.O×10-6 M. The peak potential appeared at - 1.402 V vs. Ag/AgCl. Effects of sodium chloride concentration, mercaptoacetic acid concentration, and accumulation time for the complex of Ge(IV)-Mercaptoacetic acid on the peak current were studied. Amberlite IRC-718 chelating resin was applied to the separation of Ge(IV) from other metal ions.
Page	36 - 41
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