Spectrophotometric determination of Chlorpheniramine Maleate and Phenylpropanolamine Hydrochloride by “two wavelengths method”

The most striking features of “Two Wavelengths Method” are its simplicity, sensitivity and rapidity. It is also an easier and economical method than HPLC separation technique and does not require the use of any expensive or toxic reagent. These advantages make it especially suitable for routine quality control.