4257135
Pregunta 1
Pregunta
Why are samples ionised?
Respuesta
-
To lose a proton
-
To create positive ions
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So the ions can be accelerated
-
So that all of the atoms can travel at the same speed
Pregunta 2
Pregunta
Atoms 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.
Respuesta
-
non-polar
-
polar
-
positive
-
neutral
-
high
-
low
-
normal
-
electrical
-
negative
-
positive
Pregunta 3
Pregunta
What happens during acceleration?
Respuesta
-
An electric field accelerates positive ions
-
Electricity accelerates negative ions
-
Ions move at a constant speed
-
Ions are given the same kinetic energy
Pregunta 4
Pregunta
Ions leave the electric field with a constant speed and a constant kinetic energy.
Respuesta
- True
- False
Pregunta 5
Pregunta
During 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.
Respuesta
-
no
-
some
-
a positive
-
a negative
-
a lot of
-
a higher
-
a lower
-
the same
Pregunta 6
Pregunta
Ions must be charged in order for them to be accelerated.
Respuesta
- True
- False
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