Validation and uncertainty estimation of an analytical method for the determination of phenolic compounds in concrete

Journal of the Serbian Chemical Society

Mihajlović Ivana J.¹  Nikolić Željka M.²  Savić Branislava G.²  Brdarić Tanja P.²  Milutinović Slobodan M.²  Seović Mina M.²  Tošić Miloš S.² 

[1] Faculty of Technical Sciences, Department of Environmental Engineering, Novi Sad;Institute of Nuclear Sciences, Department of Physical Chemistry, Vinča, Belgrade;

关键词: building material;    GUM;    Monte Carlo;   

DOI  :  10.2298/JSC180518106S

来源: DOAJ

【 摘 要 】

Organic contaminants from building materials negatively affect the health of people. This study presents an analytical method for the simultaneous identification and quantification of 9 phenolic compounds, i.e., phenol, 2-chlorophenol, 2,4-dimethylphenol, 2,4-dichlorophenol, 2,6-dichlorophenol, 4-chloro-3- -methylphenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrahlorophenol and pentachlorophenol, in concrete by a gas chromatographic method with mass spectrometric detection (GC–MS). By comparing the MS spectra of the test compounds with MS spectra of analytical standards, reliable identification was achieved. The method could be applied in a given range (from 0.01 to 7.5 mg kg-1) with appropriate parameters of precision, accuracy, repeatability and linearity. The developed method could be used for quality control testing of phenols in concrete during the construction of new buildings, old residences and construction waste. The measurement uncertainty of the phenolic compounds in concrete was evaluated using two approaches, i.e., GUM recommendations and a Monte Carlo method. Disagreement of those methods was observed. The Monte Carlo method could be used in the evaluation of combined measurement uncertainty for the determination of phenolic compounds in concrete. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. TR 37021]

【 授权许可】

Unknown