title: A comparative study of procaine estimation in procaine penicillin G by chloroform extraction method and spectrophotometric method.
mesh_terms: D002725:Chloroform; D008722:Methods; D010400:Penicillin G / Q000032:analysis*; D010402:Penicillin G Procaine / Q000032:analysis*; D011343:Procaine / Q000032:analysis*; D013053:Spectrophotometry
chemical_list: D010402:Penicillin G Procaine; D011343:Procaine; D002725:Chloroform; D010400:Penicillin G