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1575091 
Journal Article 
Spectrophotometric Determination of Zirconium in Water Samples 
Zhang, X; Zhao, Yan; Wang, S; Zhai, QZ 
2013 
Yes 
Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 
25 
1 
587-588 
WOS:000312620300127 
According to the property that in 2.40 mol L-1 nitric acid medium Zr(IV) can form a 1:3 blue complex nature with DBC-arsenazo (DBC-ASA), a new spectrophotometric method for the determination of Zr(IV) was established. The maximum absorption wavelength of the complex is 560 nm, Zr(IV) and absorbance in the range of 0-1.20 mu g mL(-1) obeys Beer's law. The apparent molar absorptivity of the method is epsilon(560 nm) = 4.56 x 10(4) L mol(-1) cm(-1) and detection limit is 0.22 mu g mL(-1). The method was used for the determination of zirconium in water samples. The relative standard deviation of 13 determination was 1.71-1.96% and the recovery was 95.8-104.1%. 
Zirconium; DBC-Arsenazo; Water sample; Spectrophotometry