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Calibration standards for selected ion flow tube mass spectrometry
NPL provides an 8-component gas mixture standard for calibrating Selected Ion Flow Tube Mass Spectrometry (SIFT-MS) instruments. The composition of this standard includes the following compounds at nominally 2 μmol/mol within a nitrogen balance gas. The uncertainties for each compound are in the range of 3-5 %.
Note: Commonly used names are shown here but the preferred IUPAC names where appropriate are: 2-methyl propane (isobutane), 1,2,3,4,5-Pentafluoro-6-(trifluoromethyl)benzene (octafluorotoluene) and 1,4-Xylene (p-xylene).
NPL created the 8-component mixture in collaboration with the SIFT-MS community to address the most common calibration requirements. However, NPL can provide bespoke mixtures containing different compounds and different amount fractions if required.
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Find out more about Mass spectrometry calibration (PTR-MS)
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