Why are samples ionised?

So that all of the atoms can travel at the same speed

What happens during acceleration?

An electric field accelerates positive ions

Ions are given the same kinetic energy

Electricity accelerates negative ions

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1Why are samples ionised?
1. ATo lose a proton
2. BTo create positive ions
3. CSo the ions can be accelerated
4. DSo that all of the atoms can travel at the same speed
2Atoms are ionised after they are dissolved in a [blank_start]polar[blank_end] solvent. They are then pushed through a nozzle at a [blank_start]high[blank_end] speed. Once they are ionised, the sample then consists of [blank_start]positive[blank_end] ions.
1. Anon-polar
2. Bpolar
3. Cpositive
4. Dneutral
5. Ehigh
6. Flow
7. Gnormal
8. Helectrical
9. Inegative
10. Jpositive
3What happens during acceleration?
1. AAn electric field accelerates positive ions
2. BElectricity accelerates negative ions
3. CIons move at a constant speed
4. DIons are given the same kinetic energy
4Ions leave the electric field with a constant speed and a constant kinetic energy.
1. AVerdadero
2. BFalso
5During ion drift, the region that the ions enter has [blank_start]no[blank_end] electric field and they drift through this at [blank_start]the same[blank_end] speed after acceleration.
1. Ano
2. Bsome
3. Ca positive
4. Da negative
5. Ea lot of
6. Fa higher
7. Ga lower
8. Hthe same
6Ions must be charged in order for them to be accelerated.
1. AVerdadero
2. BFalso

Descripción: Test sobre Time-of-Flight Mass Spectrometry, creado por shmockol el 28/12/2015.
Autor: shmockol
Idioma: English
Visitas: 462
Etiquetas: a level chemistry chemistry aqa as level aqa as chemistry tof mass spec time-of-flight
Valoración: 4,5 de 5 · 2 valoraciones
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