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2004•Unpublished venueRequires access

Determination of Trace Palladium by Spectrophotometric Method with 4,5-Dibromophenylfluorone

Wenbin Chen

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Abstract

The color reaction of the reagent DBPF with Pd(II) in the presence of SLS was studied. Results show that the new color reagent reacts with Pd(II) to form a stable yellow complex(1︰4)in the presence of SLS at pH 6.3 of HAc-NaAc buffer. The maximum absorption wavelength and apparent molar absorptivity are 376 nm and 1.06×10~(5 ) L/(mol·cm) respectively. Beer′s law is obeyed in the range of 0～12 μg/10 mL Pd(II). The method has been applied to the determination of trace palladium (II) in palladium catalyst and mineral samples with satisfactory results.

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What this paper is about

The color reaction of the reagent DBPF with Pd(II) in the presence of SLS was studied. Results show that the new color reagent reacts with Pd(II) to form a stable yellow complex(1︰4)in the presence of SLS at pH 6.3 of HAc-NaAc buffer. The maximum absorption wavelength and apparent molar absorptivity are 376 nm and 1.06×10~(5 ) L/(mol·cm) respectively. Beer′s law is obeyed in the range of 0～12 μg/10 mL Pd(II). The method has been applied to the determination of trace palladium (II) in palladium catalyst and mineral samples with satisfactory results.

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Available abstract

The color reaction of the reagent DBPF with Pd(II) in the presence of SLS was studied. Results show that the new color reagent reacts with Pd(II) to form a stable yellow complex(1︰4)in the presence of SLS at pH 6.3 of HAc-NaAc buffer. The maximum absorption wavelength and apparent molar absorptivity are 376 nm and 1.06×10~(5 ) L/(mol·cm) respectively. Beer′s law is obeyed in the range of 0～12 μg/10 mL Pd(II). The method has been applied to the determination of trace palladium (II) in palladium catalyst and mineral samples with satisfactory results.

Key concepts: Palladium, Molar absorptivity, Reagent, Color reaction, Chemistry, Spectrophotometry, Absorption (acoustics), Buffer solution

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