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    • Isolasi Senyawa Fenolik dari Daun Tumbuhan Putat (Planchonia valida Blume) 

      Hasibuan, Nur Adawiyah Kaffah (Universitas Sumatera Utara, 2018)
      Isolation of phenolic compounds 1700 g leaves of Putat (Planchonia valida Blume) has been done.Isolation stages included maceration with methanol, partition and separation using column chromatography with eluent chloroform ...