Question

What best summarizes the MALDI method by which gas phase ions are produced for mass spectrometry?

a.

Sample is hit by a low energy xenon beam

b.

Sample is forced through a narrow capillary tube and the solvent rapidly evaporates

c.

Sample is embedded in a crystalline matrix and bombarded by laser beams

d.

Sample is heated and then bombarded by electrons

Answer: (c).Sample is embedded in a crystalline matrix and bombarded by laser beams

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Q. What best summarizes the MALDI method by which gas phase ions are produced for mass spectrometry?

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