대한화학회지 (Journal of the Korean Chemical Society)

  • 제16권5호
  • /
  • Pages.304-313
  • /
  • 1972
  • /
  • 1017-2548(pISSN)
  • /
  • 2234-8530(eISSN)
대한화학회 (Korean Chemical Society)
권호 표지

透膜法에 依한 이온量 및 分子量의 決定에 關한 硏究 (I) 透析裝置 및 實驗方法의 改良

A Study on the Determination of Ionic and Molecular Weight of Dissolved Substance by Dialysis Method (Ⅰ). Improvements of the Dialysis Apparatus and Its Operations

  • 신윤경 (仁荷大學校 工科大學 窯業工學科) ;
  • 이전 (仁荷大學校 工科大學 窯業工學科)
  • Shin Yun Kyong (Department of Chemistry Engineering, College of Engineering, Inha University) ;
  • Rhee Jhun (Department of Chemistry Engineering, College of Engineering, Inha University)
  • 발행 : 1972.10.30
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초록

溶解된 粒子의 이온量 또는 分子量을 決定하는 方法으로서의 透膜法에는 裝置의 未備點과 實驗方法의 改良되어야 할 點이 아직 남아 있으므로 우선 이들을 改善하여 補完하였다. 透析簡에 膜을 密着시킬수 있도록 鐵製링을 開發하였다. 透析液과 外部液의 水準을 0.02mm의 精度로 一致調節하고 維持시킴으로써 渗透 및 濾過效果를 最小限度로 抑制시켰다. 두 液의 攪拌速度를 任意의 定速度로 變更하여 그 攪拌量을 一定하게 維持할 수 있도록 하였으며, 그 溫度를 透析其間中 ${\pm}0.01^{\circ}C$의 精度로 一致維持시킬수 있도록 하였다. 透析期間中 透析液의 부피變化를 -1.62 ~ +0.92%範圍로 좁혔으며, 渗透 및 濾過效果와 膜孔의 크기와의 關係를 追究하여 最適透析時間을 究明하였다.

This paper reports the improvements of the dialysis apparatus and operations since there are some problems to be improved in the dialysis method which is applied to determine the ionic and molecular weight of dissolved particles. The hook gauge was utilized in order to control the surface level of the dialysing solution and the solvent to be equal with the precision of 0.02 mm to minimize the osmotic and filtration effects. An accurate agitation velocity for both solutions was maintained and so was the same temperature for both solutions with ${\pm}0.01^{\circ}C$ precision. The dialysis membrane was fixed uniformly and flatly on one end of the dialysis cylinder by using a newly developed ring. The volume change of the dialysing solution during the dialysis was reduced to the range of -1.62 ~ +0.92%. Optimum duration of dialysis was searched from the relation between the osmotic and filtration effect and the pore size of the membrane.

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