
																
																	Colorimetric determination of Hg2+ via thiosemicarbazide-to-oxadiazole transformation of a coumarin-benzopyrylium dye
																
																
																
															Keywords: Hg2+ ion; Colorimetric signaling; Coumarin-benzopyrylium dye; Thiosemicarbazide-oxadiazole transformation; Smartphone;