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Published on 08 Aug 2012 | over 4 years ago

This short flash animation video outlines the basic principles of a Mass Spectrometer.
The key points illustrated are:
TINY AMOUNTS OF SAMPLE ARE REQUIRED - THE SAMPLE MUST BE CHANGED TO A VAPOUR - ONE OR MORE ELECTRONS ARE REMOVED FROM ATOMS OR MOLECULES TO PRODUCE +VE IONS - AN ION-ACCELERATING ELECTRIC FIELD, TOGETHER WITH PLATES WITH SLITS, FORMS A NARROW BEAM - A MAGNETIC FIELD DEFLECTS THE ION BEAM - THE ION WITH THE GREATEST MASS AND SMALLEST CHARGE (1+) IS DEFLECTED THE LEAST - IONS HIT A DETECTION PLATE PRODUCING A TINY ELECTRICAL CURRENT THAT IS APPLIFIED - THE MORE IONS OF A SPECIFIC MASS:CHARGE RATIO THE GREATER THE CURRENT AND TALLER THE PEAK

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