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Can I read Gel permeation Chromatography in coiled columns on EtoBox?
Gel permeation Chromatography in coiled columns by Walter Heitz is a Chemistry article available to read on EtoBox.
What is Gel permeation Chromatography in coiled columns about?
Whereas in gas chromatography the use of coiled columns is the usual procedure, in liquid chromatography the use of straight columns is favoured. ## Bent columns give an additional contribution to peak spreading which is of greater importance in liquid chromatography than in gas chromatography owing to smaller diffusion coefficients. The low linear velocities of the mobile phase used in gel permeation chromatography enable conditions to be found where the additional contribution of bending to peak spreading is small. In the separation of oligomers, columns of 2-mm tube diameter and 20-cm coil diameter were used. With total lengths of 10 and 20 m, theoretical plate counts of ca. 70,000 and 150,000, respectively, could be obtained. The experimental conditions of column filling, etc., are discussed. Examples are shown to demonstrate the potentialities of this technique. The main advantage is the low solvent requirement and the practicability. As predicted by theory, there is no advantage with respect to analysis time.
Who reads Gel permeation Chromatography in coiled columns?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Walter Heitz
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 1873-3778)
- Published
- 1973
- Language
- EN
- Field
- Chemistry (Physical Sciences)