6Rahman N,Nasrul H M.Validated spectrophotometric methods for the determination of amlodipine besylate in drug formulations using 2,3-dichloro 5,6-dicyano 1,4-benzoquinone and ascorbic acid[J].J Pharm Biomed Anal,2003,31(2):381-392.
9Ramadan NK,,Mohamed HM,Moustafa AA.Rapid and highly sensitive HPLC and TLC methods for quantitation of amlodipine besilate and valsartan in bulk powder and in pharmaceutical dosage forms and in human plasma. Analytical Letters . 2010
10elebier M,Kaynak MS,Altin z S,et al.Validated HPLC method development:the simultaneous analysis of amlodipine and valsartan in samples for liver perfusion studies. Hacet Univ J Facul Pharm . 2008
