Time of Flight Mass Spectrometry (AQA A-Level Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What data does TOF mass spectrometry provide?
What data does TOF mass spectrometry provide?
Relative isotopic masses & abundance
In electrospray ionisation, how do particles become positive ions?
In electrospray ionisation, how do particles become positive ions?
They gain a proton
What type of ions does electron impact ionisation produce?
What type of ions does electron impact ionisation produce?
ions
In the acceleration stage, all ions receive the same what?
In the acceleration stage, all ions receive the same what?
Kinetic energy
Which ions reach the detector first in the ion drift stage?
Which ions reach the detector first in the ion drift stage?
Lighter ions
What produces the current at the detector?
What produces the current at the detector?
Ions gaining an electron
What does the base peak represent in a mass spectrum?
What does the base peak represent in a mass spectrum?
The most abundant ion
Which magnesium isotope appears as the base peak with the highest abundance?
Which magnesium isotope appears as the base peak with the highest abundance?
at m/z = 24
In mass spectrum, what does the peak at m/z = 72 represent?
In mass spectrum, what does the peak at m/z = 72 represent?
What causes the small peak at m/z = 47 in ethanol's mass spectrum?
What causes the small peak at m/z = 47 in ethanol's mass spectrum?
Presence of atom