DIRECT DETERMINATION OF COPPER WITH THIOSEMICARBAZIDE BY UV-VIS SPECTROPHOTOMETRIC METHOD AND EFFECT OF PRESENCE SOME OTHER CATIONS

Normal 0 21 false false false TR X-NONE X-NONE MicrosoftInternetExplorer4 Direct determination of copper at the presence of Pb 2+ , Cd 2+ , Sn 2+ , Sn 4+ , Co 2+ , Ni 2+ , Fe 2+ , Fe 3+ , Cr 3+ , Cr 6+ , Zn 2+ , Mn 2+ ,   As 3+ , As 5+ ,   ions was carried out using thiosemicarbazide as complexing agent by UV-VIS spectrophotometry. The peak of Cu 2+ -thiosemicarbazide complex at 356 nm in 0.1 M HNO 3 insert ignore into journalissuearticles values(aq); was taken to be reference. With the application of same method to the top water, the amount of Cu 2+ ,   in tap water was determined to be 0.11±0,03 mg/L. This method is important as it requires no pre-seperation technique and it is sensitive upto 1.0x10-6 M.   Key Words: Direct determination, Copper, UV-VIS spectrophotometry, Thiosemicarbazide.