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Updated: Jun 24, 2026

Expression of Cementitious Pore Solution and the Analysis of Its Chemical Composition and Resistivity Using X-ray Fluorescence
Published on: September 23, 2018
Simultaneous determination of fluorine, chlorine and bromine in cement with ion chromatography after pyrolysis
Yasunari Noguchi1, Liang Zhang, Toshihisa Maruta
1Research Center, Taiheiyo Consultant Co. Ltd., Osaku 2-4-2, Sakura 285-8655, Japan.
Abstract:
A rapid method for simultaneous determination of fluorine, chlorine and bromine in cement with ion chromatography after pyrolysis was proposed for routine quality control analysis. The elements were separated from cement sample by pyrolysis, and were subsequently determined with ion chromatography. A pyrolysis method was investigated for the separation of micro amounts of these elements from cement. Total time taken to determine these elements is about 45 min including 25 min for the pyrolysis and 18 min for ion chromatography. The results of recovery tests ranged 95% or above. The limits of detection for F, Cl and Br are 0.2, 0.3 and 0.5 mg kg(-1), respectively. The method was successfully applied to the simultaneous determination of F, Cl and Br in commercial ordinary Portland cements.
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