Determination of rhodium and platinum by electrothermal atomic absorption spectrometry after preconcentration with a chelating resin
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چکیده
منابع مشابه
Determination of Rhodium(III) Ions by Flame Atomic Absorption Spectrometry after Preconcentration with Modified Magnetic Activated Carbon
A new method for analysis of trace amount of Rh(III) ions by magnetic activated carbon modified with 2,3,5,6-tetra(2-pyridyl)pyrazine (MAC/TPPZ) as the magnetic sorbent has been proposed. The proposed adsorbent was found to be advantageous over conventional solid phase extraction (SPE) in terms of operational simplicity and low time-consuming. The experimental parameters affecting the extractio...
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A flow injection on-line sorption preconcentration system for the electrothermal atomic absorption spectrometric determination of platinum has been developed. The method employs on-line preconcentration of platinum on a column packed with silica gel functionalised with 1,5-bis(di-2-pyridyl)methylene thiocarbohydrazide (DPTH-gel) placed in the autosampler arm. The modification of the autosampler...
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Marcio V. Reboucas,* Sergio L. C. Ferreira and Benicio de Barros Neto Braskem S. A., Unidade de Insumos Básicos, Laboratório, Rua Eteno 1561, Complexo Petroquı́mico de Camacari, Camacari-Bahia, Brazil 42810-000. E-mail: [email protected] Universidade Federal da Bahia, Instituto de Quı́mica, Departamento de Quı́mica Analitica, Campus Universitário de Ondina, Salvador-Bahia, Brazil 4017...
متن کاملPreconcentration of gallium by coprecipitation with synthetic zeolites prior to determination by electrothermal atomic absorption spectrometry.
Synthetic zeolites were dissolved in nitric acid, and the resulting solution used as a coprecipitant for the preconcentration of trace amounts of gallium in water samples prior to determination by electrothermal atomic absorption spectrometry (ETAAS). The gallium preconcentration conditions and the ETAAS measurement conditions were optimized. Gallium was quantitatively concentrated with the zeo...
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The application of syringe to syringe dispersive liquid phase microextraction-solidified floating organic drop was extended for the separation and preconcentration of trace amounts of cadmium ions from water and cereal samples. The extracted cadmium was quantified by electrothermal atomic absorption spectrometry. Factors affecting the complex formation as well as microextraction efficiency such...
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ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 2007
ISSN: 0103-5053
DOI: 10.1590/s0103-50532007000600024