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Ells B, Barnett DA, Purves RW, et al. Detection of nine chlorinated and brominated haloacetic acids at part-per-trillion levels using ESI-FAIMS-MS. Anal Chem. 2000;72(19):4555-9doi: 10.1021/ac000341v.
Ells, B., Barnett, D. A., Purves, R. W., & Guevremont, R. (2000). Detection of nine chlorinated and brominated haloacetic acids at part-per-trillion levels using ESI-FAIMS-MS. Analytical chemistry, 72(19), 4555-9. https://doi.org/10.1021/ac000341v
Ells, et al. "Detection of nine chlorinated and brominated haloacetic acids at part-per-trillion levels using ESI-FAIMS-MS." Analytical chemistry vol. 72,19 (2000): 4555-9. doi: https://doi.org/10.1021/ac000341v
Ells B, Barnett DA, Purves RW, Guevremont R. Detection of nine chlorinated and brominated haloacetic acids at part-per-trillion levels using ESI-FAIMS-MS. Anal Chem. 2000 Oct 01;72(19):4555-9. doi: 10.1021/ac000341v. PMID: 11028610.
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Anal Chem. 2000 Oct 01;72(19):4555-9. doi: 10.1021/ac000341v.

Detection of nine chlorinated and brominated haloacetic acids at part-per-trillion levels using ESI-FAIMS-MS.

Analytical chemistry

Ells, Barnett, Purves, Guevremont

Affiliations

  1. University of Alberta, Edmonton, Canada.

PMID: 11028610 DOI: 10.1021/ac000341v

Abstract

A combination of electrospray ionization, high-field asymmetric waveform ion mobility spectrometry, and mass spectrometry (ESI-FAIMS-MS) was used for the analysis of a solution containing a mixture of the nine chlorinated and brominated haloacetic acids. For a carrier gas of nitrogen in the FAIMS analyzer, haloacetate anions of the mono- and dihalogenated acids and the decarboxylated anions of three of the trihalogenated acids were detected. No signal was observed for bromodichloroacetic acid (BDCAA) at a dispersion voltage of -3400 V. The addition of a small amount of carbon dioxide to the nitrogen carrier gas resulted in the detection of the pseudomolecular trihaloacetate anions, including BDCA-, and significant increases in sensitivities for the trihalogenated species. The addition of carbon dioxide to the nitrogen carrier gas had little effect on the mono- and dihalogenated anions. Quantitative analysis of the nine haloacetic acids, using flow injection, gave detection limits between 5 and 36 parts-per-trillion in 9/1 methanol/water (v/v) containing 0.2 mM ammonium acetate.

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