When running a spectrum of a neat liquid, what are problems that may arise when:

a. using a low-viscosity liquid?

b. using a viscous liquid?

Problems of a) using a low-viscosity liquid is:

--> The low viscosity of liquid makes the path length of sample is thin so the signal will appear weak

Problem of b) Using a viscous liquid is:

--> The viscous liquid will make the sample spend more time with thick path length so the signal will be more intense