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Calibrating Proton Transfer Reaction – Mass Spectrometry instruments
NPL provides a 20-component gas mixture standard for calibrating the transmission function of Proton Transfer Reaction – Mass Spectrometry (PTR-MS) instruments. The composition of this standard includes the following compounds at nominally 1 μmol/mol within a nitrogen balance gas. The uncertainties for each compound are in the range of 3-10 %.
NPL created the 20-component mixture in collaboration with the PTR-MS community to cover the largest mass to charge range currently possible to enable the best constraints on the transmission curve function for these instruments. However, NPL can also provide bespoke mixtures containing different compounds and different amount fractions if required.
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