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Miniaturized capillary ion chromatograph with UV light-emitting diode based indirect absorbance detection for anion analysis in potable and environmental waters

Citation

Murray, E and Li, Y and Currivan, S and Moore, B and Morrin, A and Diamond, D and Macka, M and Paull, B, Miniaturized capillary ion chromatograph with UV light-emitting diode based indirect absorbance detection for anion analysis in potable and environmental waters, Journal of Separation Science, 41, (16) pp. 3224-3231. ISSN 1615-9306 (2018) [Refereed Article]

Copyright Statement

Copyright 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

DOI: doi:10.1002/jssc.201800495

Abstract

A miniaturized, flexible, and low-cost capillary ion chromatography system has been developed for anion analysis in water. The ion chromatography has an open platform, modular design, and allows for ease of modification. The assembled platform weighs ca. 0.6kg and is 2525cm in size. Isocratic separation of common anions (F-, Cl-, NO2-, Br-, and NO3-) could be achieved in under 15min using sodium benzoate eluent at a flow rate of 3 μL/min, a packed capillary column (0.150150mm) containing Waters IC-Pak 10um anion exchange resin, and light-emitting diode based indirect UV detection. Several low UV light-emitting diodes were assessed in terms of sensitivity, including a new 235nm light-emitting diode, however, the highest sensitivity was demonstrated using a 255nm light-emitting diode. Linear calibration ranges applicable to typical natural water analysis were obtained. For retention time and peak area repeatability, relative standard deviation values ranged from 0.60-0.95 and 1.95-3.53%, respectively. Several water samples were analysed and accuracy (recovery) was demonstrated through analysis of a prepared mixed anion standard. Relative errors of -0.36, -1.25, -0.80, and -0.76% were obtained for fluoride, chloride, nitrite, and nitrate, respectively.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Separation science
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Li, Y (Mr Yan Li)
UTAS Author:Currivan, S (Dr Sinead Currivan)
UTAS Author:Macka, M (Professor Mirek Macka)
UTAS Author:Paull, B (Professor Brett Paull)
ID Code:151924
Year Published:2018
Web of Science® Times Cited:19
Deposited By:Plant Science
Deposited On:2022-08-08
Last Modified:2022-09-12
Downloads:0

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