Question

In a solid sample treatment technique, the finely ground solid sample is mixed with mineral oil to make a thick paste which is then spread between IR transmitting windows. What is the name of this solid sample treatment technique?

(a) Pressed pellet

(b) Mull technique

(c) Solid films

(d) Solids run in solution

I got this question during an internship interview.

This is a very interesting question from Instrumentation of IR in portion Colorimetry and Spectrometry of Analytical Instrumentation

Answer 1

Correct option is (b) Mull technique

To elaborate: The mentioned technique is Mull technique. This method is used for qualitative analysis but not quantitative analysis.