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Rock phosphate as a novel solid-phase extraction adsorbent for analysis of oxalic acid in plant xylem saps by RP-HPLC
Citation
Ni, L and Wei, W and Wang, Y and Cui, J and Wei, Z, Rock phosphate as a novel solid-phase extraction adsorbent for analysis of oxalic acid in plant xylem saps by RP-HPLC, Journal of Liquid Chromatography and Related Technologies, 36, (3) pp. 274-287. ISSN 1082-6076 (2013) [Refereed Article]
Copyright Statement
Copyright 2013 Taylor & Francis Group, LLC
Official URL: http://www.tandfonline.com/loi/ljlc20#.U-A2i_mSx8E
DOI: doi:10.1080/10826076.2011.653852
Abstract
A simple and effective method for elimination the interference from nitrate ions on oxalic acid
in RP-HPLC by solid-phase extraction with rock phosphate was developed. Rock phosphate is a
cost-effective and environmentally friendly mineral material; it exhibited good adsorption ability
for oxalic acid, other than nitrate ions, malic, or citric acid; therefore, rock phosphate could be used
as an excellent solid-phase extractor for solving interference from nitrate ions on oxalic acid in
RP-HPLC. The optimum experimental conditions for the separation and determination of organic
acids were studied. After the interference was eliminated, oxalic acid was determined by RP-HPLC
at the optimum chromatographic conditions with an average recovery ranging between 96.2% and
100.2%; the relative standard deviations (RSD) were less than 3.0%. This method was successfully
applied to determine the oxalic acid in xylem sap of pokeweed.
Item Details
Item Type: | Refereed Article |
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Keywords: | nitrate, oxalic acid, rock phosphate, RP-HPLC, separation, solid-phase extraction |
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: | Wei, Z (Professor Zhenggui Wei) |
ID Code: | 91130 |
Year Published: | 2013 |
Web of Science® Times Cited: | 2 |
Deposited By: | Austn Centre for Research in Separation Science |
Deposited On: | 2014-05-08 |
Last Modified: | 2014-08-05 |
Downloads: | 0 |
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