Chobtam K, Dechakiatkrai, Theerakarunwong C. DEVELOPMENT OF A SIMPLE COLORIMETRIC SENSOR FOR THE DETECTION OF COPPER AND IRON METAL IONS . PSRU J. Sci. Tech. [Internet]. 2022 Aug. 24 [cited 2024 May 7];7(2):14-29. Available from: https://ph01.tci-thaijo.org/index.php/Scipsru/article/view/247858