Uncertainty Estimation of Metals and Semimetals Determination in Wastewater by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES)

8th Brazilian Congress on Metrology

Marques, J.R.^1 ; Villa-Soares, S.M.^1 ; Stellato, T.B.^1 ; Silva, T.B.S.C.^1 ; Faustino, M.G.^1 ; Monteiro, L.R.^1 ; Pires, M.A.F.^1 ; Cotrim, M.E.B.^1

Centro de Química e Meio Ambiente, Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP), Brazil^1

关键词: Analytes;    Concentration ranges;    Environmental legislations;    Inductively coupled plasma-optical emission spectrometry;    Measurement uncertainty;    Method of analysis;    Uncertainty estimation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/733/1/012023/pdf
DOI  :  10.1088/1742-6596/733/1/012023

来源: IOP

【 摘 要 】

The measurement uncertainty is a parameter that represents the dispersion of the results obtained by a method of analysis. The estimation of measurement uncertainty in the determination of metals and semimetals is important to compare the results with limits defined by environmental legislation and conclude if the analytes are meeting the requirements. Therefore, the aim of this paper is present all the steps followed to estimate the uncertainty of the determination of amount of metals and semimetals in wastewater by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). Measurement uncertainty obtained was between 4.6 and 12.2% in the concentration range of mg.L-1.