Particle Analyzers
Ted Pella Inc Unconjugated Gold Sols-Gold Colloids, 10NM, 100 mL
The nanometer sized gold colloids can be characterized as follows: Monodispersed gold nanoparticles supplied in water, having trace amounts of citrate, tannic acid and potassium carbonate. Citrate stabilized with a net negative surface charge. Gold colloid pH's range from above 5 for 5nm gold to less than 9 for the larger sized particles (pH increases with size). Available in a size range from 5 to 250nm. The particles are invaluable tools for light scattering, either Raman or plasmon resonance.
Polysciences, Inc. Fluoresbrite YG Microspheres 20.0 um
Fluoresbrite Yellow Green Microspheres have excitation and emission spectra similar to FITC with excitation maxima of 441nm and emission maxima at 485nm. They are one of the brightest microspheres available at this wavelength and are used extensively in phagocytosis studies, flow cytometry and diagnostic assays.
Malvern Panalytical Ms3000 Dry Windows
Pair of anti-reflection coated windows and Viton window seals for the Mastersizer 3000 dry measurement cell (MAZ2050).