Liusheng He wrote: > Recently we tried to do Karyton laser alignment at 413 nm line for >FRET assay and found that Uv excited beads from Molecular Probe was not >excited by these lines. Is anyone there knowing any commercial standard >beads for line 413 or 407 nm? Polysciences' yellow-green beads are sufficiently well excited in the violet region to be usable for alignment of a flow cytometer using a krypton laser (or violet diode laser) light source. -Howard
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