Extraction of iridium(III) and iridium(IV) chloride complexes by a new sorbent containing sulfur and nitrogen

Afonin, M. V.; Simanova, S. A.; Burmistrova, N. M.; Shiryaeva, O. A.; Karpov, Yu. A.; Dal’nova, Yu. S.; Панина, Н. С.

doi:10.1134/s0020168509140052

Cited by 4 publications

(1 citation statement)

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“…Up to now, a number of separation and preconcentration procedures, such as solid-phase extraction (SPE), co-precipitation, cloud point extraction (CPE), and liquid-liquid extraction (LLE), have been developed and used for the preconcentration and separation of iridium and other metal ions at trace levels in various environmental samples by analytical chemists around the world (Soylak et al 2004;Papaiconomou et al 2014;Afonin et al 2009;Taher et al 1997;Pirogov and Havel 1997).…”

Section: Introductionmentioning

confidence: 99%

Solid-phase extraction of iridium from soil and water samples by using activated carbon cloth prior to its spectrophotometric determination

Özkantar

Yılmaz

Soylak

et al. 2015

Environ Monit Assess

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A solid-phase extraction method for separation and preconcentration of Ir(IV) ion by using activated carbon cloth (ACC) has been presented. Ir(IV) as their 1-(2-pyridylazo) 2-naphtol (PAN) chelate was adsorbed on ACC at pH 2.0 and was eluted from ACC with acidic dimethylformamide (DMF). The Ir(IV) concentration was determined at 536 nm as Ir(IV)-PAN complex by using UV-vis spectrophotometer. The analytical parameters including pH, sample and eluent flow rates, amount of PAN, eluent type, concentration, and sample volume were optimized. The effects of foreign ions on the recoveries of iridium were also investigated. The preconcentration factor was calculated as 60. The limit of detection (LOD) and the limit of quantification (LOQ) of the method were found as 0.039 and 0.129 μg L(-1), respectively. The method was applied to soil and water samples for iridium determination.

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Section: Introductionmentioning

confidence: 99%