Complexation and chromatographic studies involving water soluble calixarenes and nitrophenols |
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| Authors: | J S Millership M A McKervey J A Russell |
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| Institution: | (1) School of Pharmacy, The Queen's University of Belfast, Medical Biology Centre, 97 Lisburn Road, BT9 7BL Belfast, Northern Ireland;(2) School of Chemistry, The Queen's University of Belfast, Stranmillis Road, BT9 5AG Belfast, Northern Ireland |
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| Abstract: | Summary In this study, an investigation of the utilisation of the sodium salts of 4-sulphonic calix4]arene and 4-sulphonic calix6]arene
as mobile phase additives in reversed phase HPLC is described. Consistent with earlier work these mobile phase additives were
shown to strongly influence the retention behaviour and separation factor of 2-, 3- and 4-nitrophenols. Proton NMR and UV
spectroscopic data is presented to demonstrate that this chromatographic behaviour is due to pH effects and not due to complexation
between the nitrophenols and the calixarenes. |
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| Keywords: | Column liquid chromatgraphy Water soluble calixarenes Mobile phase additives Inclusion complexation pH effects |
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