Author/Authors :
Kossakovski، نويسنده , , D.A and OʹConnor، نويسنده , , S.D and Widmer، نويسنده , , John Baldeschwieler، نويسنده , , J.D and Beauchamp، نويسنده , , J.L، نويسنده ,
Abstract :
A new instrument for simultaneous analysis of surface topography and chemical composition has been developed. An uncoated probe of a near-field scanning optical microscope (NSOM) is used to deliver laser radiation to the sample surface. Laser-desorbed species are analyzed with a time-of-flight mass spectrometer (TOF MS). Both elemental and molecular analysis can be performed with simultaneous topographical imaging of the sample.