Chem Sci Trans., 2017, 6(4),  pp 614- 618  

Research Article

Novel Method for the Quantification of Ropinirole Hydrochloride in Pure API and its Marketed Formulations Using 3-Methyl-2-benzothiazolinone Hydrazone Hydrochloride and p-Dimethylaminocinnamaldehyde as Chromogenic Reagents by Spectrophotometry

I. SRIKANTH¹*, M. SRILATHA¹, P. RATNA KUMARI¹, P. V. SURESH²

¹Department of Pharmaceutical Analysis, K.C. Reddy Institute of Pharmaceutical Sciences, Jangamguntla Palem, Medikonduru Mandal, Guntur 522 348, India
²Department of Pharmaceutical Analysis, Chalapathi Institute of Pharmaceutical Sciences, Chalapathi Nagar, Lam, Guntur 522 034, India