Derivative Spectrophotometric Methods for Simultaneous Determination of Quercetin and Gentisic acid in Capparis spinosa L. Baghdad Sci.J [Internet]. 2024 May 1 [cited 2024 May 21];21(5):1536. Available from: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/8632