Extraction of organic acids by ion-pair extraction with tri-n-octylamine - VIII. Identification of synthetic dyes in pharmaceutical preparations |
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| Authors: | Puttemans M L Dryon L Massart D L |
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| Institution: | Farmaceutisch Instituut, Vrije Universiteit Brussel, Laarbeeklaan 103, 1090 Brussels, Belgium |
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| Abstract: | Synthetic dyes were extracted from syrups, oral suspensions, tablets, gelatin capsules, suppositories and granules by ion-pair formation with tri-n-octylamine (TnOA) and back-extracted with perchlorate ions. Identification was performed by TLC on cellulose layers and by reversed phase ion-pair HPLC. |
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| Keywords: | Synthetic dyes pharmaceutical preparations ion-pair extraction identification |
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