A Quantitative Spectrometric Assay for the Determination of Solution Concentration of para-sulphonato-calix[n]arenes and Their Derivatives |
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Authors: | Cecile F Rousseau Sebastien Cecillon Eric Da Silva Anne-Marie Freyria Daniel Herbage Edwige Leclere Anthony W Coleman |
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Institution: | (1) IBCP, CNRS/UCBL UMR 5086, 7 passage du Vercors, Lyon, Cedex 07, F-69367, France |
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Abstract: | A spectrometric assay for the determination of concentration of para-sulphonato-calixn]arenes and their derivatives has been developed using dimethylmethylene blue (DMMB) as a probe. Interaction with para-sulphonato-calixn]arenes leads to a metachromatic shift in the spectrum of DMMB with appearance of a peak at 536 nm and diminution of the spectral
intensity of the peaks at 594 and 649 nm. The method shows good linearity in the concentration range 0–6 μg/ml for para-sulphonato-calixn]arenes.
in final form: 27 December 2004 |
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Keywords: | 1 9-dimethylmethylene blue assay calix[n]arenes spectrometry |
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