Spectroscopy (OCR A-Level Chemistry A): Flashcards
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Practise the cards
10 cards from this deck
Purpose of mass spectrometry
Purpose of mass spectrometry
Identify organic compounds by determining molecular mass
How molecular ion () forms
How molecular ion () forms
Molecule loses one electron during ionisation
Location of peak in mass spectrum
Location of peak in mass spectrum
Highest value on right side of spectrum
What peak reveals
What peak reveals
Molecular mass of the compound
Cause of M+1 peak
Cause of M+1 peak
isotope present in molecule
Natural abundance of
Natural abundance of
Approximately 1.1%
Fragmentation in mass spectrometry
Fragmentation in mass spectrometry
Molecular ions break into smaller fragment ions
What is detected after fragmentation
What is detected after fragmentation
Positively charged fragment ions only, not radicals
Base peak definition
Base peak definition
Tallest peak in the mass spectrum
value of fragment
value of fragment
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