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Study on Solid Phase Extraction and Spectrophotometric Determination of Palladium in Cyanide Residue with p-Sulfobenzylidene-rhodanine

Yin Jia-yuan

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Abstract

Based on the color reaction of p-sulfobenzylidene-rhodanine (SBDR) with palladium (II) and the solid phase extraction of its colored complex with C18 cartridge, a new method for the determination of palladium in cyanide residue was studied. In pH 2.0 buffer solution medium and in the presence of CTMAB, SBDR can react with palladium to form a stable 2:1 complex. The molar absorptivity is 7.79×104 L·mol-1·cm-1 at 535 nm. Beer’s law is obeyed in the range of 0.01～2.0 μg/mL. The method was applied to the determination of palladium in cyanide residue with good results.

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What this paper is about

Based on the color reaction of p-sulfobenzylidene-rhodanine (SBDR) with palladium (II) and the solid phase extraction of its colored complex with C18 cartridge, a new method for the determination of palladium in cyanide residue was studied. In pH 2.0 buffer solution medium and in the presence of CTMAB, SBDR can react with palladium to form a stable 2:1 complex. The molar absorptivity is 7.79×104 L·mol-1·cm-1 at 535 nm. Beer’s law is obeyed in the range of 0.01～2.0 μg/mL. The method was applied to the determination of palladium in cyanide residue with good results.

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Available abstract

Based on the color reaction of p-sulfobenzylidene-rhodanine (SBDR) with palladium (II) and the solid phase extraction of its colored complex with C18 cartridge, a new method for the determination of palladium in cyanide residue was studied. In pH 2.0 buffer solution medium and in the presence of CTMAB, SBDR can react with palladium to form a stable 2:1 complex. The molar absorptivity is 7.79×104 L·mol-1·cm-1 at 535 nm. Beer’s law is obeyed in the range of 0.01～2.0 μg/mL. The method was applied to the determination of palladium in cyanide residue with good results.

Key concepts: Palladium, Rhodanine, Cyanide, Chemistry, Molar absorptivity, Residue (chemistry), Solid phase extraction, Color reaction

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Study on Solid Phase Extraction and Spectrophotometric Determination of Palladium in Cyanide Residue with p-Sulfobenzylidene-rhodanine — Research Paper | ScholarLens