Abstract
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 μ = 350 nm is 6.21 × 103 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.
Highlights
Ruthenium and its compounds are widely used in various fields: as a catalyst in chemical, petroleum, and pharmaceutical industries, in electrical contacts, resistors, as electrode materials for supercapacitors, and it improves the corrosion properties of alloys, etc.[1,2,3]
For spectrophotometric determination of ruthe nium, S and N containing organic compounds are widely used.[3,4,5,6,8,9,10,11,12]. Azolidones belong to such compounds. This class of organic compounds was discovered in the middle of the 20th century.[13]
In this paper, we investigated the interaction of ruthenium(IV) ions with 5-hydroxyimino-4-imino1,3-thiazolidin-2-one
Summary
Ruthenium and its compounds are widely used in various fields: as a catalyst in chemical, petroleum, and pharmaceutical industries, in electrical contacts, resistors, as electrode materials for supercapacitors, and it improves the corrosion properties of alloys, etc.[1,2,3] There is a need to develop sensitive, simple and inexpensive methods for the quantitative determination of ruthenium in different samples. For spectrophotometric determination of ruthe nium, S and N containing organic compounds are widely used.[3,4,5,6,8,9,10,11,12] Azolidones belong to such compounds. This class of organic compounds was discovered in the middle of the 20th century.[13] These compounds exhibit different biological activity, in particular hypoglycemic, antimicrobial, fungicidal, antiviral, antiinflammatory, and antitumor.[14,15,16].
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