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Title

Determination of minor elements in steelmaking flue dusts using laser ablation inductively coupled plasma mass spectrometry

AuthorsGómez Coedo, Aurora CSIC ; Padilla, Isabel CSIC ORCID ; Dorado López, María Teresa CSIC
KeywordsLaser ablation
Inductively coupled plasma mass spectrometry
Steelmaking flue dusts
Pressed powder
Issue Date15-Jul-2005
PublisherElsevier
CitationTalanta 67: 136-143 (2005)
AbstractElement determination in solid waste products from the steel industry usually involves the time-consuming step of preparing a solution of the solid. Laser ablation (LA) inductively coupled plasma mass spectrometry (ICP-MS) has been applied to the analysis of Cr, Ni, Cu, As, Cd and Sn, elements of importance from the point of view of their impact on the environment, in electric arc furnace flue dust (EAFD). A simple method of sample preparation as pressed pellets using a mixture of cellulose and paraffin as binder material was applied. Calibration standards were prepared spiking multielement solution standards to a 1:1 ZnO + Fe2O3 synthetic matrix. The wet powder was dried and mechanically homogenised. Quantitative analysis were based on external calibration using a set of matrix matched calibration standards with Rh as a internal standard. Results obtained using only one-point for calibration without matrix matched, needing less time for standardization and data processing, are also presented. Data are calculated for flue dust reference materials: CRM 876-1 (EAFD), AG-6203 (EAFD), AG-6201 (cupola dust) and AG-SX3705 (coke ashes), and for two representative electrical arc furnace flue dusts samples from Spanish steelmaking companies: MS-1 and MS-2. For the reference materials, an acceptable agreement with certificate values was achieved, and the results for the MS samples matched with those obtained from conventional nebulization solutions (CN). The analytical precision was found to be better than 7% R.S.D. both within a single pellet and between several pellets of the same sample for all the elements.
Publisher version (URL)http://dx.doi.org/10.1016/j.talanta.2005.02.029
URIhttp://hdl.handle.net/10261/221680
DOI10.1016/j.talanta.2005.02.029
Identifiersdoi: 10.1016/j.talanta.2005.02.029
issn:: 0039-9140
Appears in Collections:(CENIM) Artículos

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