Please use this identifier to cite or link to this item: http://cmuir.cmu.ac.th/jspui/handle/6653943832/72227
Title: Open tubular capillary ion chromatography with online dilution for small ions determination in drinks
Authors: Tinakorn Kanyanee
Kanlayarat Tianrungarun
Wasin Somboot
Chanida Puangpila
Jaroon Jakmunee
Keywords: Agricultural and Biological Sciences
Chemistry
Issue Date: 15-Jul-2022
Abstract: This work aims to develop a more robust, easy-to-use, low-pressure, and cost-effective nonsuppressed open tubular capillary ion chromatography (NS-OTIC) approach with online dialysis for small ions determination in drinks. The fabricated device was applied for two selected columns, including poly(butadiene-maleic acid) on a 50-μm bore and AS18 Latex on 25-µm bore fused silica capillaries, for the separation of mixed cations (Na+, K+, Ca2+, Mg2+) and mixed anions (Cl−, Br−, NO2−, NO3−), respectively. High concentrations of ions (up to 100 mM) level can be directly introduced into the NS-OTIC system without an off-line (manual) dilution step. The linear relationship of the peak area and concentration of model ions can be obtained with a resolution > 1.1. The repeatability of the peak area for both OTIC columns was < 6% RSD. Juice and tea samples were successfully analyzed with % recoveries of 77–112 and 90–119 for cation and anion determinations, respectively.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85125595196&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/72227
ISSN: 18737072
03088146
Appears in Collections:CMUL: Journal Articles

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