The possibility of transforming a wide (pH 3.5-10) into a narrow pH gradient in isoelectric fccusing (IEF) has been examined by.the use of different amino acid terminators at the electrodes, vi-\_. 50 mM Asp, 50 mM Trp, 45 m!\4 Phe. 0.5 M Gly or OS 1l4 Lys. The pH gradient formation and decay seem t
Transient state isoelectric focusing: Resolving power and zone resolution
โ Scribed by Nicholas Catsimpoolas
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 361 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0003-2697
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โฆ Synopsis
A digital on-line data acquisition system has been used in conjunction with a scanning isoelectric focusing assembly for the direct calcuIation of the resolving power and zone resolution in transient state isoelectric focusing experiments. The application of the method to the evaluation of these two parameters in relation to (a) the applied electric field strength during focusing, and (b) to the diffusion in the absence of current is presented. A linear relationship between l/o' (where 0 is the standard deviation of the concentration distribution of a focused zone) and the applied voltage was demonstrated. The resolving power and resolution were generally improved with increased electric field strength.
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