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# Mass Spectrometer watch

1. State what is adjusted in the mass spectrometer in order to direct ions with different m/z values onto the detector. Explain your answer. (3 Marks)

I understand that it's the magnetic field strength that is adjusted.
My reason: To allow the ions to enter the detector in order of increasing mass?

Magnetic/electric field
Correct link between deflection and m/z
Correct link between deflection and field

Does this last part literally mean, the stronger the field the more the deflection? Please can somebody write me a model answer. Thanks.
2. *bump*
3. (Original post by bubbles95)
State what is adjusted in the mass spectrometer in order to direct ions with different m/z values onto the detector. Explain your answer. (3 Marks)

I understand that it's the magnetic field strength that is adjusted.
My reason: To allow the ions to enter the detector in order of increasing mass?

Magnetic/electric field
Correct link between deflection and m/z
Correct link between deflection and field

Does this last part literally mean, the stronger the field the more the deflection? Please can somebody write me a model answer. Thanks.
Yes it does.

Increasing the strength of the magnetic field will increase deflection. A lower m/z will be deflected more than a higher m/z.
4. (Original post by bubbles95)
State what is adjusted in the mass spectrometer in order to direct ions with different m/z values onto the detector. Explain your answer. (3 Marks)

I understand that it's the magnetic field strength that is adjusted.
My reason: To allow the ions to enter the detector in order of increasing mass?

Magnetic/electric field
Correct link between deflection and m/z
Correct link between deflection and field

Does this last part literally mean, the stronger the field the more the deflection? Please can somebody write me a model answer. Thanks.

And pretty sure the guy above me summed it up :P
5. I would say:
for Mark1 - the electromagnetic field is adjusted
for Mark2 - The stronger the magnetic field, the stronger the deflection

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Updated: January 6, 2013
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