A field portable membrane introduction mass spectrometer with in-line standard infusion and sample heat exchanger for real-time monitoring of volatile organic compounds in aqueous samples
Martinsen, Morten R.
Davey, Nicholas G.
Bell, Ryan J.
Krogh, Erik T.
Gill, Chris G.
MetadataShow full item record
Maintaining a steady sample temperature when analyzing real-time samples in the field is crucial for Membrane Introduction Mass Spectrometry (MIMS). Diffusion through the membrane interface is temperature dependent, and sample temperature might vary depending on the sample source. In order to reduce this source of inaccuracy, an in-field and online continuous monitoring system based on (MIMS) coupled with a heat exchanger and in-line standard addition was developed for monitoring volatile organic compounds (VOC) in actual field samples. Parametric studies of the heat exchanger have been conducted in the laboratory. In order to maintain control on instrumental signal drift during continuous, long-term analysis periods, the system used continuous infusion of internal standard (tuloene-d8) into the sample stream and also provided the possibility to infuse, in the same way, an analyte for standard addition calibration. This set-up has been utilized in the field for analyzing both natural water sources and heavily polluted process water. The system was demonstrated to offer a rapid method for quantifying volatile hazardous pollutants in aqueous matrices with good time-resolution.
Identifier (Other)DOI: 10.1016/j.enceco.2020.09.003
Except where otherwise noted, this item's license is described as Attribution NonCommercial No Derivatives 4.0 International
Showing items related by title, author, creator and subject.
[Post-print] Rapid screening of carboxylic acids from waste and surface waters by ESI-MS/MS using barium ion chemistry and on-line membrane sampling Duncan, Kyle D.; Volmer, Dietrich A.; Gill, Chris G.; Krogh, Erik T. (Springer, 2016-03)Negative ion tandem mass spectrometric analysis of aliphatic carboxylic acids often yields only non-diagnostic ([M-H]-) ions with limited selective fragmentation. However, carboxylates cationized with Ba2+ have ...
[Post-print] Discrimination of constructed air samples using multivariate analysis of full scan membrane introduction mass spectrometry (MIMS) data Richards, Larissa C.; Davey, Nicholas G.; Fyles, Thomas M.; Gill, Chris G.; Krogh, Erik T. (John Wiley & Sons, Inc., 2018-02-28)RATIONALE: Volatile and semi-volatile organic compounds (S/VOCs) are important atmospheric pollutants affecting both human and environmental health. They are directly measured as an unresolved mixture using membrane ...
[Post-print] A semi-quantitative approach for the rapid screening and mass profiling of naphthenic acids directly in contaminated aqueous samples Duncan, Kyle D.; Letourneau, Dane R.; Vandergrift, Gregory W.; Jobst, Karl; Reiner, Eric; Gill, Chris G.; Krogh, Erik T. (John Wiley & Sons, Inc., 2016-01)We report the use of a direct sampling, online analytical approach for the determination of acid extractable naphthenic acids in complex aqueous samples, known as condensed phasemembrane introductionmass spectrometry ...