Cdex, Inc. (fka CDEX)

[d4diddy]

doyourdd, if you do your DD you will also find that many companies manufacture UV fluorescence spectrometers (fluorometers).

Have you read how the Valimed cuvette chamber has been redesigned to hold the new 250 microliter cuvettes which have a more consistent wall thickness (measurement precision)?

Here's a fluorometer that can test a 1 miroliter sample without the use of a cuvette:

http://www.nanodrop.com

There's dozens and dozens of commercially available fluorometers and NIR spectrometers.