Concentration and spectrophotometric determination of zirconium(IV) during the analysis of rock using a chelating sorbent

Басаргин, Н. Н.; Oskotskaya, E. R.; Simakov, P. E.; Rozovskii, Yu. G.

doi:10.1134/s0020168510150070

Cited by 2 publications

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Section: Methods Of Molecular Spectroscopymentioning

confidence: 99%

“…In a number of works, the preliminary concentration of zirconium or its complex with arsenazo III on sorbents of various types is used (Basargin et al, 2010;Ghasemi & Zolfonoun, 2010;Pourreza, Mouradzadegun & Mohammadi, 2011;Karve & Gholave, 2014). Thus, the high selectivity of zirconium determination against the background of 10 3 -10 4 -fold mass excesses of many transition, alkaline, alkaline-earth, and rare-earth metals is demonstrated after its concentration on the polymeric chelate sorbent -polystyrene-2-hydroxy-(azo-1)-2′hydroxy-3′,5′-dinitrobenzene (Basargin et al 2010). In the work of Ghasemi and Zolfonoun (2010), the detection limit of zirconium was 0.48 μg•l −1 when using the ion-exchange resin Amberlite XAD-2000 for the concentration treated with α-benzoinoxime, but the selectivity was not as high as in the previous procedure -copper and iron (III) influence the determination of zirconium at 50-fold excess.…”

Section: Methods Of Molecular Spectroscopymentioning

confidence: 99%

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Zirconium in modern analytical chemistry

Печищева

Shunyaev

Melchakova

2018

Reviews in Analytical Chemistry

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Abstract Detailed monographs on the analytical chemistry of zirconium, which is widely used in all fields of modern science and technology, were published in the 1960s–1970s of the last century. This review summarizes information on the modern methods for determination of zirconium in a great variety of natural, technical, and biological objects. Focus is made on the works published in scientific periodicals after 2005. Spectroscopic techniques of zirconium determination including molecular and atomic spectrometry, X-ray fluorescence analysis, and electrochemical and activation methods are described. The paper also describes the applications of zirconium compounds, in particular, in analytical chemistry.

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Section: Methods Of Molecular Spectroscopymentioning

confidence: 99%

Section: Methods Of Molecular Spectroscopymentioning

confidence: 99%

Zirconium in modern analytical chemistry

Печищева

Shunyaev

Melchakova

2018

Reviews in Analytical Chemistry

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“…Ïðåäñòàâëÿåò èíòåðåñ ïðèìåíåíèå àðñåíàçî III äëÿ ôîòîìåòðè÷åñêîãî îïðåäåëåíèÿ öèðêîíèÿ [19,20]. Èç òàáë.…”

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Photocolorimetric determination of zirconium microcontent in the products of linear alpha-olefins production

Gatiyatullina¹,

Sayakhov²,

Latypova³

2018

Zavod. lab., Diagn. mater.

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Analytical control of the technological process of linear alpha-olefins (LAO) production using a zirconium carboxylate based catalyst according to α-SABLIN technology calls for determination of the residual zirconium in the solvent when washing equipment, in the reaction products and wastewater, the purity of which is strictly regulated. Features of photocolorimetric determination of zirconium impurities with different complexing agents are considered and sensitivity of the determination with iron, aluminum, nickel and chromium present is estimated by comparing the values of the «sensitivity index» (by E. Sendel) and «specific absorption» (by Z. Marchenko). The reaction of complex formation with arsenazo III in 9 – 10 M HCl is used for determination of zirconium in the LAO production related products. The resulting colored complex exhibits the maximum light absorption at a wavelength of 670 nm. The measured content ranges from 0.100 to 100 mg/kg, 103-fold amounts of Ni2+, Fe3+, Al3+ and 400-fold amounts of Cr3+ do not interfere with the determination. The method of additives is used to eliminate the interfering effect of the acidity of the medium. It is shown that the developed technique provides a satisfactory level of the reproducibility and correctness of the results for analytical control of LAO production.

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Concentration and spectrophotometric determination of zirconium(IV) during the analysis of rock using a chelating sorbent

Cited by 2 publications

References 0 publications

Zirconium in modern analytical chemistry

Zirconium in modern analytical chemistry

Photocolorimetric determination of zirconium microcontent in the products of linear alpha-olefins production

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