re: UV beads

Michael Fox (MFox@vines.ColoState.EDU)
Mon, 16 Dec 96 9:07:58 MST

Regarding the best UV beads for alignment, David Dicker wrote that he tried
UV beads from Polysciences and found their CVs to be horrendous, so he used
Coulter DNA Check beads instead. We used DNA Check beads from Coulter for a
long time, but they are expensive and quality control is not good. Contrary
to David's experience, we found that Polysciences UV beads Fluorescebrite BB
(Cat #183-10) are extremely good and very cheap per use because you get an
enormous concentration. The CVs can routinely be measured below 1% using an
Argon laser in UV using reasonable power levels (e.g. 100 mW). I don't think
there is a better source of UV beads around for the quality and value.

Mike Fox
Colorado State University


Home Page Table of Contents Sponsors E-Mail Archive Web Sites

CD-ROM Vol 3 was produced by Monica M. Shively and other staff at the Purdue University Cytometry Laboratories and distributed free of charge as an educational service to the cytometry community. If you have any comments please direct them to Dr. J. Paul Robinson, Professor & Director, PUCL, Purdue University, West Lafayette, IN 47907. Phone: (765)-494-0757; FAX(765) 494-0517; Web http://www.cyto.purdue.edu , EMAIL cdrom3@flowcyt.cyto.purdue.edu