Separation and spectrophotometric determ
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Fabrizio De Fabrizio
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Article
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1978
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John Wiley and Sons
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English
โ 224 KB
A simple chromatographic procedure was developed for the separation and determination of theophylline and hydroxyethyltheophylline. An aliquot of diluted syrup was pipetted into a chromatographic column containing a strong anion-exchange resin, which retains theophylline and allows the hydroxyethyl