Abstract
Stable isotopic dilution was applied to the determination of dimethyl sulfide (DMS) in ambient air at the low part-per-trillion by volume (pptrv) levels. Perdeuterated DMS was used as an internal standard in the gas chromatography/mass spectrometry determination. The isotopically labelled internal standard provided insensitivity to possible losses of DMS in sampling and analysis. The lower limit of detection (LLD) was 1 pptrv with a sample acquisition time of 2 min.
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Thornton, D.C., Bandy, A.R., Ridgeway, R.G. et al. Determination of part-per-trillion levels of atmospheric dimethyl sulfide by isotope dilution gas chromatography/mass spectrometry. J Atmos Chem 11, 299–308 (1990). https://doi.org/10.1007/BF00053779
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DOI: https://doi.org/10.1007/BF00053779