Question

Which of the following probes are used for the introduction of the sample?

(a) Silica

(b) Quartz

(c) Graphite

(d) Silver

I have been asked this question in class test.

This is a very interesting question from Components of Mass Spectrometer topic in chapter Mass Spectrometer of Analytical Instrumentation

Answer 1

Right choice is (a) Silica

To elaborate: Solid samples with low vapour pressure are introduced into the entrance of the chamber. They are introduced using silica or platinum probe.