Problem 15.4

a) Imaging mass spectrometry, now popular with MALDI-MS, has originally been deleveloped in inorganic MS. Which method has been used in the very beginning of mass spectral imaging?

b) Lasers can be used to ablate material from rather well-defined spots on surfaces. Which ionization method is generally combined with that process for element imaging purposes?

c) What is the typical size of MS images in terms of numbers of pixels along each coordinate? Explain reasons for that.

Answered all questions? Want to see the solutions page?