ANSARI, ...., RAZA, ...., NIAZI, ...., & BUKHARI, .... 2005 Jun 1. A Simple Spectrophotometric Determination of Diclofenac Sodium in Commercial Dosage Forms using 2,3-Dichloro-5, 6-Dicyano-1,4-Benzoquinone (DDQ). Pakistan Journal of Analytical & Environmental Chemistry. [Online] 6:1