NIR or similar techniques for Blend Uniformity, Do they Work?

tbc wrote:

I have recently read an article about using NIR or other similar techniques to measure blend uniformity instead of traditional sampling with thieves. Do these techniques really work? Are they acceptable to the FDA?

It seems that NIR techniques can be used instead of traditional theives sampling check the page below:

http://www.aapspharmscitech.org/view.asp?art=pt030324&pdf=yes

The current trends in process analytical technology (PAT) are Infra-red, Spetroscopy, thermal, optical, and various physical and microbiological identification techniques are emerging fast. In future PAT will take over QC as Q-PAT.