Tạp chí Đại học Thủ Dầu Một, S. 2 (2011)

Cỡ chữ:  Nhỏ  Vừa  Lớn

Simutaneous specttrophotometric determination of Ni2+, Zn2+ with xylenol organge in some industrial waters

Phan Xuân Thảo Nhi, Phạm Văn Tất

Tóm tắt


The formation constants and the concentration of [M] and [MLi] in complex solutions of Ni2+ and Zn2+ with xylenol orange were determined by spectrophotometric method and principal component analysis. In this way, the spectral data were used to calculate the formation constants of complexes between ions Ni2+ and Zn2+ with xylenol orange using algorithm of principal component analysis (PCA) in DATAN. The concentration values of Ni2+ and Zn2+ in synthetic solutions resulting from this technique using xylenol orange (XO) at pH 7.2 agree well with experimental data. This method can be applied to simultaneous determination of Ni2+ and Zn2+ in the industrial waste waters. 


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Tạp chí Đại học Thủ Dầu Một, ISSN: 1859-4433