Khaodee W, Poti N, Kunthadee P. Simple Detection Kit for Copper (II) Ion in Water using Solid Sorbent Modified with Cyanidin Extracted from Red Cabbage. Asian Health Sci.Tech.Rep. [internet]. 2021 Feb. 10 [cited 2026 Aug. 30];29(3):105-13. available from: https://ph03.tci-thaijo.org/index.php/ahstr/article/view/1430