View source for E/2 mass spectrum

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M<sup>2</sup><sup>+</sup> + X &rarr; M<sup>+</sup> + X<sup>+</sup> 

Processes of the charge-stripping type: M<sup>+</sup> + X &rarr; M<sup>2+</sup> + X + e occurring in [[Collision Cell|collision cell]] (containing gas X) located in a [[Field Free Region|field-free region]] preceding a [[Magnetic Sector|magnetic]] and [[Electric Sector|electric sector]] combination placed in either order, may be detected as follows;- if the instrument slits are wide and if the [[Electric Sector|electric sector]] field is set to half the value required to transmit the main ion beam, the only ions [[Transmission|transmitted]] will be those with [[Kinetic Energy|kinetic energy]]/charge ratio half, or almost half, that of the main ion beam. The [[Product Ion|product ion]]s of the above [[Charge Stripping Reaction|charge stripping]] process fulfil that condition. If the magnetic field, B, is scanned, a [[mass spectrum]] of such doubly-charged product ions and thus of their singly-charged precursors is obtained. Such a spectrum is termed a E/2 mass spectrum.
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[[Category:Sequential m/z Separation]]
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