chemistry - TOF
sounds silly but I revise chemistry through actively visualising concepts
In tof - the ions are separated by their differences of masses which leads to a difference in the time it takes for the ions to travel a fixed distance
but are magnetic fields still required to allow the ions to be discharged as the electric plate but just not as strongly compared to other mass spectrometers as this technique relies on its time of flight rather than the current generated?
thanks
In tof - the ions are separated by their differences of masses which leads to a difference in the time it takes for the ions to travel a fixed distance
but are magnetic fields still required to allow the ions to be discharged as the electric plate but just not as strongly compared to other mass spectrometers as this technique relies on its time of flight rather than the current generated?
thanks
Original post by Lebkuchen
sounds silly but I revise chemistry through actively visualising concepts
In tof - the ions are separated by their differences of masses which leads to a difference in the time it takes for the ions to travel a fixed distance
but are magnetic fields still required to allow the ions to be discharged as the electric plate but just not as strongly compared to other mass spectrometers as this technique relies on its time of flight rather than the current generated?
thanks
In tof - the ions are separated by their differences of masses which leads to a difference in the time it takes for the ions to travel a fixed distance
but are magnetic fields still required to allow the ions to be discharged as the electric plate but just not as strongly compared to other mass spectrometers as this technique relies on its time of flight rather than the current generated?
thanks
As far as I'm aware there are no magnetic fields in time of flight mass spec, the molecules are injected in and then ionised, then they are attracted to a negatively charged plate and then drift down a tube through a vacuum and take an electron from the detector, generating a current, then the size of this current is recorded, but I am a little rusty
No magnetic fields in a TOF mass spectrometer, thats why they are much cheaper than single beam spectrometers, you don't need to buy or up keep electromagnets, try here it may help: https://www.science-revision.co.uk/A-level_mass_specrometer_TOF.html
Original post by Scanjo63
No magnetic fields in a TOF mass spectrometer, thats why they are much cheaper than single beam spectrometers, you don't need to buy or up keep electromagnets, try here it may help: https://www.science-revision.co.uk/A-level_mass_specrometer_TOF.html
thanks that made a lot more sense!
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