Detection of monobromamine, monochloramine and dic...[Rapid Commun Mass Spectrom. 2008]

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1: Rapid Commun Mass Spectrom. 2008;22(5):677-81. Links

Detection of monobromamine, monochloramine and dichloramine using selected ion flow tube mass spectrometry and their relevance as breath markers.

Senthilmohan ST, Kettle AJ, McEwan MJ, Dummer J, Edwards SJ, Wilson PF, Epton MJ.

Syft Technologies Ltd., 3 Craft Place Middleton, Christchurch, New Zealand.

We report a fast, sensitive, real-time method to measure monobromamine, monochloramine and dichloramine using selected ion flow tube mass spectrometry (SIFT-MS). Relative rate coefficients and product distributions are reported for the reagent ions H3O+ and O2 +. Rapid reactions with the haloamines were observed with H3O+ and O2 + but no fast reaction was found with NO+. A slow reaction between NO+ and dichloramine was observed. We demonstrate the feasibility of determining these compounds in a single human breath for which the limit of detection is approaching 10 parts per billion (ppb). We also report preliminary measurements of these compounds in the breath of individuals where the concentrations of bromamine and chloramine ranged from 10 to 150 ppb.

PMID: 18257115 [PubMed - indexed for MEDLINE]

ReviewSelected ion flow tube mass spectrometry for on-line trace gas analysis in biology and medicine. [Eur J Mass Spectrom (Chichester, Eng). 2007]
A longitudinal study of methanol in the exhaled breath of 30 healthy volunteers using selected ion flow tube mass spectrometry, SIFT-MS. [Physiol Meas. 2006]
ReviewSelected ion flow tube mass spectrometry (SIFT-MS) for on-line trace gas analysis. [Mass Spectrom Rev. 2005]
A longitudinal study of ethanol and acetaldehyde in the exhaled breath of healthy volunteers using selected-ion flow-tube mass spectrometry. [Rapid Commun Mass Spectrom. 2006]
Selected ion flow tube: a technique for quantitative trace gas analysis of air and breath. [Med Biol Eng Comput. 1996]

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Detection of monobromamine, monochloramine and dichloramine using selected ion flow tube m...Detection of monobromamine, monochloramine and dichloramine using selected ion flow tube mass spectrometry and their relevance as breath markers.

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Detection of monobromamine, monochloramine and dichloramine using selected ion flow tube mass spectrometry and their relevance as breath markers.

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