2011-12-Predavanje 2- MS

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Transcript of 2011-12-Predavanje 2- MS

Masna spektrometrija

Masni spekter

Alkilna cepitev

Alilna cepitev

Beta cepitev

Alfa cepitev

Retro Diels Alderjeva reakcija

Mc Lafferty-eva

cepitev

Milejše metode ionizacije

Schematic diagram of tandem mass spectrometry. In tandem mass spectrometry (or MS/MS) ions with the mass-to-charge (m/z) ratio of interest (that is, parent or precursor ion) are selectively reacted to generate a mass spectrum of product ions. CID, collision-induced dissociation; IRMPD, infrared multi-photon photodissociation; SID, surface-induced dissociation.

Tandem MS

Elektrospray ionizacija

http://www.astbury.leeds.ac.uk/facil/MStut/mstutorial.htm

Elektrospray ionizacija

http://www.astbury.leeds.ac.uk/facil/MStut/mstutorial.htm

MALDI (matrix assisted laser

desorption ionization) ionizacija

http://www.astbury.leeds.ac.uk/facil/MStut/mstutorial.htm

MALDI (matrix assisted laser

desorption ionization) ionizacija

http://www.astbury.leeds.ac.uk/facil/MStut/mstutorial.htm