Research Article - (2011) Volume 2, Issue 10

Simultaneous Determination of Coumarin, O-Coumaric Acid, Dihydrocoumarin and Syringaldehyde in Guaco Extracts and Pharmaceutical Preparations by HPLC-DAD

João Cleverson Gasparetto, Thais Martins Guimarães De Francisco, Francinete Ramos Campos and Roberto Pontarolo*
Department of Pharmacy, Universidade Federal do Paraná, Curitiba, Brazil
*Corresponding Author: