HOME PAGE * KS3 SCIENCES * GCSE BIOLOGY CHEMISTRY PHYSICS * ADVANCED LEVEL CHEMISTRY
SPECTROSCOPY INDEXES * All Advanced Organic Chemistry Notes * [SEARCH BOX]
Advanced Organic Chemistry: Mass spectrum of methanol
|
The mass spectrum of methanol Doc Brown's Chemistry Advanced Level Pre-University Chemistry Revision Study Notes for UK IB KS5 A/AS GCE advanced A level organic chemistry students US K12 grade 11 grade 12 organic chemistry courses involving molecular spectroscopy analysing mass spectra of methanol
Methanol CH4O
Interpreting the fragmentation pattern of the mass spectrum of methanol [M]+ is the molecular ion peak (M) with an m/z of 32 corresponding to [CH4O]+, the original methanol molecule minus an electron, [CH3OH]+. The small M+1 peak at m/z 33, corresponds to an ionised methanol molecule with a 13C atom in it i.e. an ionised methanol molecule of formula [13CH3OH]+
The most abundant ion of the molecule under mass spectrometry investigation (methanol) is usually given an arbitrary value of 100, called the base ion peak, and all other abundances ('intensities') are measured against it. Identifying the species giving the most prominent peaks (apart from M) in the fragmentation pattern of methanol.
Formation of m/z 30 ion:
Formation of m/z 29 ion:
Formation of m/z 15 ion:
Key words & phrases: CH3OH image diagram on how to interpret and explain the mass spectrum of methanol m/z m/e base peaks, image and diagram of the mass spectrum of methanol, details of the mass spectroscopy of methanol, low and high resolution mass spectrum of methanol, prominent m/z peaks in the mass spectrum of methanol, comparative mass spectra of methanol, the molecular ion peak in the mass spectrum of methanol, analysing and understanding the fragmentation pattern of the mass spectrum of methanol, characteristic pattern of peaks in the mass spectrum of methanol, relative abundance of mass ion peaks in the mass spectrum of methanol, revising the mass spectrum of methanol, revision of mass spectroscopy of methanol, most abundant ions in the mass spectrum of methanol, how to construct the mass spectrum diagram for abundance of fragmentation ions in the mass spectrum of methanol, how to analyse the mass spectrum of methanol, how to describe explain the formation of fragmented ions in the mass spectra of methanol equations for explaining the formation of the positive ions in the fragmentation of the ionised molecule of methanol recognising the base ion peak of methanol interpreting interpretation the mass spectrum of methanol CH4O methyl alcohol Links associated with methanol
|
