Arsenic determination in naphtha by electrothermal atomic absorption spectrometry after preconcentration using multiple injections
نویسندگان
چکیده
منابع مشابه
Arsenic determination in naphtha by electrothermal atomic absorption spectrometry after preconcentration using multiple injections
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 کاملDetermination of arsenic in seafood by electrothermal atomic absorption spectrometry after microwave digestion: NMKL collaborative study.
Eight laboratories participated in an interlaboratory method performance (collaborative) study of a method for the determination of arsenic in foodstuffs of marine origin by electrothermal atomic absorption spectrometry after wet digestion using a microwave oven technique. The study was preceded by a practice round of familiarization samples. The method was tested on 8 materials (cod roe, krill...
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...
متن کاملDetermination of Cadmium by Electrothermal Atomic Absorption Spectrometry after its Separation and Preconcentration by Syringe to Syringe Dispersive Liquid Phase Microextraction-Solidified Floating Organic Drop
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...
متن کاملAutomated on-line separation–preconcentration system for platinum determination by electrothermal atomic absorption spectrometry
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...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Analytical Atomic Spectrometry
سال: 2003
ISSN: 0267-9477,1364-5544
DOI: 10.1039/b306101a