PTR-MS Sensitivity and Detection Limits
Market-leading online detection limits for VOCs reaching ppqv-level with ULTRA-PURE ion source.
The best available detection limits for online trace gas analysis now also with H3O+, NO+ and O2+ as precursor ions.
We continously improve our technology and are proud to share unmatched detection limits approaching ppqv-level (parts per quadrillion) and highest possible reagent ion intensities with you.
IONICON PTR-MS instruments are trusted by scientists all over the world for more than a decade with good reason. Unlike other technologies PTR-MS is delivering real single-digit pptv-level sensitivity for most VOCs.
The following examples were recorded with a new, off-the-shelve, IONICON High-Sensitivity PTR-MS. The following graphs illustrate that even sub-pptv concentrations are possible and realistic with an IONICON High-Sensitivity PTR-MS. The new IONICON ULTRA-PURE ion source now delivers up to 60 times higher reagent ion yields than generally are acknowledged for PTR-MS technology in recent literature(1). (Click on graphs to enlarge)
| Typical IONICON Reagent Ion Yields | Reagent Ion Yield/Sensitivities Evolution |
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| LoD measurement with H3O+ as reagent ion | LoD measurement with NO+ as reagent ion |
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| 30s integration time LoD measurement | 180s integration time LoD measurement |
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| IONICON PTR-MS Detection Limit Evolution | |
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R. S. Blake, P. S. Monks, A. M. Ellis: Proton-Transfer Reaction Mass Spectrometry. Chem. Rev., 109 (3) (2009), 861-896. Link
A. Jordan, S. Haidacher, G. Hanel, E. Hartungen, J.Herbig, L. Märk, R. Schottkowsky, H. Seehauser, P. Sulzer, T. D. Märk: An online ultra-high sensitivity proton-transfer-reaction mass-spectrometer combined with switchable reagent ion capability (PTR+SRI-MS), International Journal of Mass Spectrometry (2009). Link
Related download:
PTR+SRI-MS Sensitivity & LoD Poster (0.2 MB .pdf)
PTR-MS technology overview folder (0.4 MB .pdf - 8 pages A4)
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