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Ultra-trace determination of oxyhalides in ozonated aquacultural marine waters by direct injection ion chromatography coupled with triple-quadrupole mass spectrometry
Citation
Sanz Rodriguez, E and Lam, S and Smith, GG and Haddad, PR and Paull, B, Ultra-trace determination of oxyhalides in ozonated aquacultural marine waters by direct injection ion chromatography coupled with triple-quadrupole mass spectrometry, Heliyon, 7, (4) Article e06885. ISSN 2405-8440 (2021) [Refereed Article]
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Copyright Statement
© 2021 Published by Elsevier Ltd. Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) https://creativecommons.org/licenses/by-nc-nd/4.0/
DOI: doi:10.1016/j.heliyon.2021.e06885
Abstract
A direct, robust, accurate and highly sensitive method for oxyhalide species in natural waters, including seawater, using suppressed ion chromatography coupled with mass spectrometry (IC-MS) is described. The method utilised a high capacity, high efficiency anion-exchange column (Dionex IonPac AS11-HC, 4 mm, 2 × 250 mm), with the separation achieved using an electrolytically generated potassium hydroxide gradient, delivered at 0.380 mL min−1. Applying the method, detection limits for iodate, bromate, and chlorate in seawater after direct sample injection (20 μL injection volume, samples diluted 10-fold), were 11, 30 and 13 ng L−1 (ppt), respectively. Standard addition calibrations to ozonated seawater samples were linear, in all cases R2 > 0.999 (n = 10), with intra-day repeatability of 3.7, 11.2 and 1.8 % RSD (n = 10) for a low-level standard mixture (0.30 μg L−1 of iodate, 0.15 μg L−1 of bromate, and 1.50 μg L−1 of chlorate). The method was applied to the analysis of seawater samples taken pre- and post-disinfection points within a recirculating aquacultural system. Iodate, bromate and chlorate were detected as the main oxyanionic disinfection by-products, demonstrating the practical utility of the new method as a valuable tool for monitoring changes to seawater composition following disinfection treatments.
Item Details
Item Type: | Refereed Article |
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Keywords: | oxyhalides, natural and saline waters, ozonation, ion chromatography, mass spectrometry, ultra-trace determination, aquacultural industry |
Research Division: | Chemical Sciences |
Research Group: | Analytical chemistry |
Research Field: | Separation science |
Objective Division: | Animal Production and Animal Primary Products |
Objective Group: | Fisheries - aquaculture |
Objective Field: | Fisheries - aquaculture not elsewhere classified |
UTAS Author: | Sanz Rodriguez, E (Dr Estrella Sanz Rodriguez) |
UTAS Author: | Lam, S (Mr Shing Chung Lam) |
UTAS Author: | Smith, GG (Professor Gregory Smith) |
UTAS Author: | Haddad, PR (Professor Paul Haddad) |
UTAS Author: | Paull, B (Professor Brett Paull) |
ID Code: | 144223 |
Year Published: | 2021 |
Web of Science® Times Cited: | 1 |
Deposited By: | Fisheries and Aquaculture |
Deposited On: | 2021-04-29 |
Last Modified: | 2022-08-26 |
Downloads: | 8 View Download Statistics |
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