A rapid and reliable technique for N-nitrosodimethylamine analysis in reclaimed water by HPLC-photochemical reaction-chemiluminescence.

Fujioka, T; Takeuchi, H; Tanaka, H; Nghiem, LD; Ishida, KP; Kodamatani, H

A rapid and reliable technique for N-nitrosodimethylamine analysis in reclaimed water by HPLC-photochemical reaction-chemiluminescence.

Fujioka, T Takeuchi, H Tanaka, H Nghiem, LD Ishida, KP Kodamatani, H

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Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Chemosphere, 2016, 161, pp. 104-111
Issue Date:: 2016-10

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Field	Value	Language
dc.contributor.author	Fujioka, T
dc.contributor.author	Takeuchi, H
dc.contributor.author	Tanaka, H
dc.contributor.author	Nghiem, LD
dc.contributor.author	Ishida, KP
dc.contributor.author	Kodamatani, H
dc.date.accessioned	2022-02-08T06:50:33Z
dc.date.available	2016-06-25
dc.date.available	2022-02-08T06:50:33Z
dc.date.issued	2016-10
dc.identifier.citation	Chemosphere, 2016, 161, pp. 104-111
dc.identifier.issn	0045-6535
dc.identifier.issn	1879-1298
dc.identifier.uri	http://hdl.handle.net/10453/154298
dc.description.abstract	A fast and reliable analytical technique was evaluated and validated for determination of N-nitrosodimethylamine (NDMA) formation and rejection by reverse osmosis (RO) membranes in potable water reuse applications. The analytical instrument used in this study is high-performance liquid chromatography (HPLC), photochemical reaction (PR) and chemiluminescence (CL) - namely HPLC-PR-CL. Results reported here show that HPLC-PR-CL can be used to measure NDMA with a similar level of accuracy compared to conventional and more time-consuming techniques using gas chromatography and tandem mass spectrometry detection in combination with solid phase extraction. Among key residual chemicals (i.e. monochloramine, hydrogen peroxide and hypochlorite) in reclaimed wastewater, hypochlorite was the only constituent that interfered with the determination of NDMA by HPLC-PR-CL. However, hypochlorite interference was eliminated by adding ascorbic acid as a reducing agent. Direct injection of ultrafiltration (UF)-treated wastewater samples into HPLC-PR-CL also resulted in an underestimation of the NDMA concentration possibly due to interference by organic substances in the UF-treated wastewater. Accurate determination of NDMA concentrations in UF-treated wastewater was achieved by reducing the sample injection volume from 200 to 20 μL, though this increased the method detection limit from 0.2 to 2 ng/L. In contrast, no interference was observed with RO permeate. These results suggest that RO membranes could remove part of substances that interfere with the NDMA analysis by HPLC-PR-CL. In addition, RO treatment experiments demonstrated that HPLC-PR-CL was capable of evaluating near real-time variation in NDMA rejection by RO.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Chemosphere
dc.relation.isbasedon	10.1016/j.chemosphere.2016.06.094
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Environmental Sciences
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.subject.mesh	Chromatography, High Pressure Liquid
dc.subject.mesh	Dimethylnitrosamine
dc.subject.mesh	Drinking Water
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	Filtration
dc.subject.mesh	Hydrogen Peroxide
dc.subject.mesh	Luminescence
dc.subject.mesh	Solid Phase Extraction
dc.subject.mesh	Tandem Mass Spectrometry
dc.subject.mesh	Ultrafiltration
dc.subject.mesh	Waste Water
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Water Purification
dc.subject.mesh	Hydrogen Peroxide
dc.subject.mesh	Dimethylnitrosamine
dc.subject.mesh	Water Pollutants, Chemical
dc.subject.mesh	Ultrafiltration
dc.subject.mesh	Chromatography, High Pressure Liquid
dc.subject.mesh	Filtration
dc.subject.mesh	Environmental Monitoring
dc.subject.mesh	Water Purification
dc.subject.mesh	Luminescence
dc.subject.mesh	Tandem Mass Spectrometry
dc.subject.mesh	Solid Phase Extraction
dc.subject.mesh	Drinking Water
dc.subject.mesh	Waste Water
dc.title	A rapid and reliable technique for N-nitrosodimethylamine analysis in reclaimed water by HPLC-photochemical reaction-chemiluminescence.
dc.type	Journal Article
utslib.citation.volume	161
utslib.location.activity	England
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	closed_access	*
dc.date.updated	2022-02-08T06:50:32Z
pubs.publication-status	Published
pubs.volume	161

Abstract:

A fast and reliable analytical technique was evaluated and validated for determination of N-nitrosodimethylamine (NDMA) formation and rejection by reverse osmosis (RO) membranes in potable water reuse applications. The analytical instrument used in this study is high-performance liquid chromatography (HPLC), photochemical reaction (PR) and chemiluminescence (CL) - namely HPLC-PR-CL. Results reported here show that HPLC-PR-CL can be used to measure NDMA with a similar level of accuracy compared to conventional and more time-consuming techniques using gas chromatography and tandem mass spectrometry detection in combination with solid phase extraction. Among key residual chemicals (i.e. monochloramine, hydrogen peroxide and hypochlorite) in reclaimed wastewater, hypochlorite was the only constituent that interfered with the determination of NDMA by HPLC-PR-CL. However, hypochlorite interference was eliminated by adding ascorbic acid as a reducing agent. Direct injection of ultrafiltration (UF)-treated wastewater samples into HPLC-PR-CL also resulted in an underestimation of the NDMA concentration possibly due to interference by organic substances in the UF-treated wastewater. Accurate determination of NDMA concentrations in UF-treated wastewater was achieved by reducing the sample injection volume from 200 to 20 μL, though this increased the method detection limit from 0.2 to 2 ng/L. In contrast, no interference was observed with RO permeate. These results suggest that RO membranes could remove part of substances that interfere with the NDMA analysis by HPLC-PR-CL. In addition, RO treatment experiments demonstrated that HPLC-PR-CL was capable of evaluating near real-time variation in NDMA rejection by RO.

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http://hdl.handle.net/10453/154298