Research Article | OPEN ACCESS
Detection of Na+, NH4+, K+ and Ca2+ in the Yoghourt and Beer
1, 2Dongwu Liu, 1Ling Kong and 1Zhiwei Chen
1School of Life Sciences
2Analysis and Testing Center, Shandong University of Technology, Zibo 255049, China
Advance Journal of Food Science and Technology 2015 5:317-321
Received: January ‎8, ‎2015 | Accepted: February ‎14, ‎2015 | Published: August 20, 2015
Abstract
Ion Chromatography (IC) has been developed for the determination of inorganic ions and organic acids. Chromatography can yield the precise and reproducible data if the experimental condition is kept constant. In this study, the cations Na+, NH4+, K+ and Ca2+ in the yoghourt and beers were determined with the technique of IC. A Dionex ICS-2000 ion chromatograph with a Dionex gradient pump, eluent degassing module and conductivity detector was used. Cations were separated on a CS12 A ion-exchange column, with a CG-12 A guard column and detected after suppression with CSRS 300 cation electrical self-regenerating suppressor. The results indicated that the technique of IC was suitable for the rapid, precise and accurate determination of Na+, NH4+, K+ and Ca2+ in the yoghourt and beer samples. In addition, the acceptable detection limits were obtained for Na+, NH4+, K+ and Ca2+ and the time of analysis was significantly shortened with the technique of IC. The data will provide theories and rapid methods for the supervision of yoghourt and beer quality.
Keywords:
Beer, Ca2+, ion chromatography, K+, Na+, NH4+,
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Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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The authors have no competing interests.
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