Even though mass spectrometry has been in use for over a hundred years,it had only limited use with proteins until the 1980s because
A)not many proteins had been discovered and purified before the 1980s.
B)it was not possible to disperse charged proteins into a gaseous stream of particles.
C)many proteins are difficult or impossible to crystallize.
D)proteins decompose too quickly into their component amino acids.

Question

Quizplus · Accepted Answer

Mass spectrometry's limited use with proteins until the 1980s was primarily due to the difficulty in ionizing and vaporizing proteins without decomposition, making it challenging to disperse charged proteins into a gaseous stream of particles for analysis.

Even Though Mass Spectrometry Has Been in Use for Over