Published in Medical Letter on the CDC and FDA, April 26th, 2006
"A procedure is presented for the simultaneous determination of phenylephrine HCl (PE), chlorpheniramine maleate (CM), and methscopolamine nitrate in commercial tablets or capsules by liquid chromatography (LC) with two UV absorbance detectors in series. Reference and sample solutions are prepared in methanol. LC separations are performed on a 7.5-cm Novapak silica column. The mobile phase was prepared by mixing 930 mL methanol with 70...
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