Fig. 3From: Smart stability indicating spectrophotometric methods for determination of modafinil: the promising treatment for post-covid neurological syndromeRatio spectra of modafinil 5-30 µg/mL(–) and 50 µg/mL of its acidic degradation product (-—-) using 70 µg/mL of degradation as a divisor in methanolBack to article page