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Tandem MS (MS/MS)

Two stages of mass selection in series with a fragmentation step in between. The first stage selects a precursor ion, a collision cell fragments it, and the second stage analyses the product ions. Selectivity is the product of two mass filters and a known fragmentation pathway.

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Related terms

Accurate massAccurate mass and mass defectBase peakCID and HCDDeuterated internal standardMass-to-charge ratio (m/z)Molecular ion (M+)MRM (multiple reaction monitoring)Quantifier and qualifier transitionsResolution

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