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Lebedev, R. S.

doi:10.1023/a:1021928817028

Cited by 11 publications

(6 citation statements)

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“…This class of organic compounds was discovered in the middle of the 20 th century. 13 These compounds exhibit different biological activity, in particular hypoglycemic, antimicrobial, fungicidal, antiviral, antiinflammatory, and antitumor. [14][15][16] In our previous studies, the physicochemical properties of the new reagents: 5-hydroxyimino-4-imino-1,3thiazo lidin-2-one (HITO), 4-[N'-(4-imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid and 1-(5-benzylthiazol-2-yl)azonaphthalen-2-ol, which belong to the class of azolidones, and the interaction of Pd(II), Rh(III), Pt(IV), Ir(IV), Cu(II), Zn(II), Cd(II), Ni(II), and Hg(II) ions with these reagents were investigated [17][18][19][20][21][22][23][24][25][26][27][28] and the methods of their determination with good metrological characteristics were proposed.…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Ru(IV) Using 5-Hydroxyimino-4-imino-1,3-thiazolidin-2-one as a Novel Analytical Reagent

Tymoshuk¹,

Oleksiv

Khvalbota³

et al. 2019

ACSi

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The interaction of Ru(IV) ions with a novel analytical reagent-5-hydroxyimino-4-imino-1,3-thiazolidin-2-one, by spectrophotometric method was investigated. The complex is formed at pH 5.0 in acetate buffer medium after heating in the boiling water bath (~371 K) for 25 min. The complex has maximum absorption at 350 nm and is stable for 24 h. Beer's law is valid over the concentration range of 0.5-6.1 µg mL-1 for Ru(IV). The molar absorptivity at λ = 350 nm is 6.21 × 10 3 L mol-1 cm-1. The limit of detection of this method is 0.2 µg mL-1. The interfering effect of various cations and anions on the spectrophotometric determination of the Ru(IV) were investigated. The proposed method was successfully applied to the determination of Ru(IV) in alloys.

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Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Ru(IV) Using 5-Hydroxyimino-4-imino-1,3-thiazolidin-2-one as a Novel Analytical Reagent

Tymoshuk¹,

Oleksiv

Khvalbota³

et al. 2019

ACSi

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“…[21][22][23][24] Azolidones as a new class of organic compounds were discovered in the middle of the 20 th century. 25 These reagents are widely used in medicine, due to their wide range of biological activity. 26,27 In this work, we investigated the interaction of palladium(II) ions with first-time synthesized reagent -4-[N'-(4-imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid (ITHBA).…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Studies of 4-[N’-(4-Imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid as a Reagent for the Determination of Palladium

Lozynska

Tymoshuk²,

Чабан³

2015

ACSi

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The spectrophotometric behavior of a new, first-time synthesized reagent -4-[N'-(4-imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid (ITHBA), has been investigated. A simple, rapid, accurate, selective and sensitive method for the spectrophotometric determination of Pd(II) ions using this reagent was developed. The optimal conditions for the formation of the complexes were found. The molar absorptivity at λ = 438 nm is 7.5 × 10 3 L mol -1 cm -1 , and Beer's law is observed for the concentrations ranging from 0.2-2.2 μg mL -1 Pd(II). The effects of extraneous ions were investigated. The method proved to be successful in determination of palladium in the intermetallides and resistor. The accuracy of spectrophotometric palladium assay in real objects with 4-[N'-(4-imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid has been confirmed by voltammetric or atomic absorption spectroscopy method.

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“…Among the large number of known reagents, azolidons and their derivatives, which contain functional groups with electron donor atoms S, N, O [7], have attracted special interest. Rodanine, which belongs to the class of azolidons, and its derivatives are successfully used in analytical practice as reagents for the determination of noble and heavy metals [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric method for palladium determination using 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one and application to the analysis of intermetallides

Lozynska¹,

Tymoshuk²,

Rydchuk³

2014

Chem. Met. Alloys

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This work describes the application of a new, simple and rapid spectrophotometric method to the determination of palladium in the intermetallides Yb 40 Pd 38 Sn 22 and Yb 40 Pd 40 Ga 20. The method is based on the interaction of palladium(II) ions with 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one at pH = 5.0, in a medium of acetate buffer and sodium chloride. The range of the determined concentrations of palladium is 6.0•10-6-6.0•10-5 M. Intermetallides / Palladium(II) / Spectrophotometry / 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one

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Cited by 11 publications

References 0 publications

Spectrophotometric Determination of Ru(IV) Using 5-Hydroxyimino-4-imino-1,3-thiazolidin-2-one as a Novel Analytical Reagent

Spectrophotometric Determination of Ru(IV) Using 5-Hydroxyimino-4-imino-1,3-thiazolidin-2-one as a Novel Analytical Reagent

Spectrophotometric Studies of 4-[N’-(4-Imino-2-oxo-thiazolidin-5-ylidene)-hydrazino]-benzenesulfonic acid as a Reagent for the Determination of Palladium

Spectrophotometric method for palladium determination using 5-hydroxyimino-4-imino-1,3-thiazolidin-2-one and application to the analysis of intermetallides

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