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An 16O2+ ion circulates at 500. MHz in an ICR cell.

i) What would the cyclotron

frequency be for an 14N2+ ion in this same cell under the same conditions, in MHz? Please use integer atomic weights as indicated. (Hint: take ratios of expressions for the cyclotron frequency, cancel like terms and rearrange.)

ii) What would the m/z ratio be for a singly charged ion that is circulating at one half the frequency of 16O2 + ?

iii) What would the cyclotron frequency be for a doubly charged ion, O22+?

iv) Suppose you were collecting data over a 0.2 second sampling interval, and your resolution were 10,000. How long would your data sampling interval need to be to increase the resolution to 25,000? 

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Given, we of Oxygen = 16
Charge (2) on Oxygen : 2
Frequency (9), 50 0 MHZ
Foomula : -
Find Magnetic Field (B.)
)=9 * Bo
2# 5 x m
Substituting above given Values in formula
500 =
2 # Bo
2* 22 * 16...

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