Mass Spectrometry (VCE SSCE Chemistry): Flashcards
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10 cards from this deck
MS separation basis
MS separation basis
Mass-to-charge ratio ()
MS detection sensitivity range
MS detection sensitivity range
Parts per billion to parts per trillion
Three stages of MS process
Three stages of MS process
Ionisation, separation, detection
Ionisation in MS creates what
Ionisation in MS creates what
Positively charged ions
Molecular ion peak location
Molecular ion peak location
Highest value in spectrum
Base peak characteristics
Base peak characteristics
Tallest peak, 100% relative intensity
Fragment ions definition
Fragment ions definition
Smaller pieces of molecule with lower
Why MS needs vacuum
Why MS needs vacuum
Prevent air molecule interference
when charge is 1+
when charge is 1+
Equals molecular mass
Chlorine isotope pattern in spectrum
Chlorine isotope pattern in spectrum
Two peaks separated by 2 mass units, ~3:1 ratio