Pillai, C BRao, S J1984-08-012009-05-271984-08-012009-05-271984-08-01Pillai CB, Rao SJ. A comparative study of procaine estimation in procaine penicillin G by chloroform extraction method and spectrophotometric method. Hindustan Antibiotics Bulletin. 1984 Aug-Nov; 26(3-4): 142-4http://imsear.searo.who.int/handle/123456789/2668engChloroformMethodsPenicillin G --analysisPenicillin G, Procaine --analysisProcaine --analysisSpectrophotometryA comparative study of procaine estimation in procaine penicillin G by chloroform extraction method and spectrophotometric method.Comparative Study