Question

For a mass spectrometric analysis, the compounds are converted into ___________________

(a) gaseous ions

(b) soluble form

(c) matrix

(d) antibody

Answer 1

Correct choice is (a) gaseous ions

For explanation I would say: For the mass spectrometric analysis of proteins, they are converted into positively-charged gaseous ions that are accelerated through a curved tube (under the influence of a magnetic field) to a negatively-charged plate.