Mass Spectrometry of Small Molecules Magnetic-Sector Instruments

Mass Spectrometry of Small Molecules Magnetic-Sector Instruments 

At its simplest, mass spectrometry (MS) is a technique for measuring the mass, and therefore the molecular weight (MW), of a molecule. In addition, it s often possible to gain structural information about a molecule by measuring the masses of the fragments produced when molecules are broken apart. 

More than 20 different kinds of commercial mass spectrometers are available depending on the intended application, hut all have three basic parts an ionization source in which sample molecules are given an electrical charge, a mass analyzer in which ions are separated by their mass-to-charge ratio, and a detector in which the separated ions are observed and counted. 

Electron impact (El), or Eleotrospray ionization (ESI), or Matrix-assisted laser desorption ionization (MALDI) 

Ultraviolet spectroscopy Is a conjugated it electron system present  

Nuclear magnetic What is the carbon-hydrogen framework  

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I Mass Spectrometry of Small Molecules Magnetic-Sector Instruments 425... 

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