Ion Chromatography for the Continuous Determination of Sulfite and Sulfide in Gypsum and Gypsum Products

Abstract:

A quantitative ion chromatographic analytical method for the continuous determination of the sulfite and sulfide in gypsum and gypsum products is proposed. This paper established a determination method removal interference with each other between sulfite and sulfide that measure sulfite and sulfide content respectively. A set of calibration graphs for standards with different concentration ranges with indicate a good linear regression.The method presents good repeatability because in all cases the observed RSD was below 1% through two chromatographic parameters both of the retention time and the area of the analytical signal. The accuracy of the method was evaluated through recovery assays. The recoveries varied from93.9% to 105.7% depending on the anion, indicating that the extraction of the analytes was good enough to de used for the determination of the studied anions in gypsum sample.

• Periodical: Key Engineering Materials (Volume 726)
• Pages: 75-79
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.726.75
• Online since: January 2017
• Authors: Dan Hua Xu, Peng Chen, Shi Hua Liu
• Keywords: Continuous Determination, Ion Chromatography, Sulfide, Sulfite

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