Direct determination of copper with thiosemicarbazide by UV-VIS spectrophotometric method and effect of presence some other cations

$Cu^{2+}$ nin UV-GB spektrofotometresi ile $Pb^{2+}$, $Cd^{2+}$, $Sn^{2+}$, $Sn^{4+}$, $Co^{2+}$, $Ni^{2+}$, $Fe^{2+}$, $Fe^{3+}$, $Cr^{3+}$, $Cr^{6+}$, $Zn^{2+}$, $Mn^{2+}$, $As^{3+}$, $As^{5+}$ iyonları varlığında doğrudan tayini kompleksleştirici reaktif olarak tiyosemikarbazit kullanılarak yapıldı. Burada $Cu^{2+}$-tiyosemikarbazit kompleksinin 0,1 M HNO3'li ortamda vermiş olduğu 356 nm'deki absorpsiyon pikinden yararlanıldı. Bu metod çeşme suyuna uygulandığında, çeşme suyundaki bakır 0,11$pm$0,03 mg/L olarak bulundu. Metod hiç bir ön ayırma işlemi gerektirmemesi ve $10^{-6}$ M'a kadar hassas oluşu bakımından önemlidir.

Bakırın tiyosemikarbazit ile UV-GB spektrofotometrik metodla doğrudan tayini ve bu tayine diğer bazı katyonların etkisi

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 HNO3 (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$pm$0,03 mg/L. This method is important as it requires no pre-seperation technique and it is sensitive up to l.0 x $l0^{-6}$ M.

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