| Ion Trap
Analyzer |
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| • | Variable radio
frequency voltage applied to |
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| the ring
electrode |
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| • | ions of
appropriate m/z circulate in stable |
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| orbit |
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| • | scan rf, heavier
particles stable, lighter |
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| particles collide
with ring electrode |
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| • | ejected ions
detected by transducer as an |
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| ion current |
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