How can you differentiate between DI Water and IPA on an FT-IR scan

Here are two IR spectra, can you tell the difference?

Water:
http://webbook.nist.gov/cgi/cbook.cgi?ID…


IPA:
http://webbook.nist.gov/cgi/cbook.cgi?ID…

IPA:
See Infrared spectrum: liquid film near bottome of page
http://www.rod.beavon.clara.net/2propano…