Colour balance is not applicable with partial spectral band light. The only thing you can do is use a lightsource with know emission spectrum, and calibrate your lens+sensor's response for those wavelengths. Then you can assign an arbitrary Look-Up-Table (LUT) to represent different amounts of reflection.
True. I realize that colour balance and white balance are not the best way of describing it, but they are the particular methods I have been playing with to get faux colour images. I know I could make arbitrary lookup tables, but for the moment I do not wish to go that route.
Apparently, Canon cameras are not the best suited for UV photography according to this source.
Sadly, this is true. I have chatted with Dr. Schmitt several times on the issue including sending samples and yeah.. even converted to full spectrum, Canon bodies suck at UV. Unfortunately it is all I have so that is what I am working with.
He also makes other sometimes spectacular looking images but don't forget that this is done by using very special equipment and processing:
He does indeed have access to equipment that most of us could only dream of, though in his blog he has done a good job demonstrating that using even cheap stuff like old enlarging lenses you can get some pretty good results.