Chromatographic behaviour of positional isomers on porous graphitic carbon

Wan, Qian H., Shaw, P. Nicholas, Davies, Martyn C. and Barrett, David A. (1995). Chromatographic behaviour of positional isomers on porous graphitic carbon. In: 20th International Symposium on Chromatography, Bournemouth, United Kingdom, (219-227). 19-24 June 1994. doi:10.1016/0021-9673(94)00813-O

Author Wan, Qian H.
Shaw, P. Nicholas
Davies, Martyn C.
Barrett, David A.
Title of paper Chromatographic behaviour of positional isomers on porous graphitic carbon
Conference name 20th International Symposium on Chromatography
Conference location Bournemouth, United Kingdom
Conference dates 19-24 June 1994
Journal name Journal of Chromatography A   Check publisher's open access policy
Place of Publication Amsterdam, Netherlands
Publisher Elsevier
Publication Year 1995
Sub-type Fully published paper
DOI 10.1016/0021-9673(94)00813-O
ISSN 0021-9673
Volume 697
Issue 1-2
Start page 219
End page 227
Total pages 8
Language eng
Abstract/Summary Retention characteristics of six sets of ionizable substituted benzene isomers have been measured on a porous graphitic carbon column using buffered aqueous eluents containing 35% acetonitrile. The elution orders varied with the different types of substituents on the benzene ring and were not readily predictable from the known structures of the isomers. Over the range of mobile phase between pH 2 to 9.4, the retention of the solutes was correlated directly with their degree of ionization, with the ionized form being least retained. An interpretation of these data was suggested based on the solute molecular orientation effect induced by the competing interactions of solute with adsorbent and solvent.
Keyword Performance liquid-chromatography
Stationary phases
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Conference Paper
Collection: School of Pharmacy Publications
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Created: Mon, 20 Dec 2010, 14:12:08 EST