Our colored carboxylated PS latex particles are made by incorporating organic color dye into our carboxylated white PS latex particles. These red and blue beads are used in applications when color visualization is important for detection and are widely used in rapid (lateral flow) tests. Color intensity can be customized to suit your specific needs. Please contact us for details. 300nm and 400nm particles are widely used in rapid tests.

Product specifications:

• Concentration: aqueous suspension of 10% w/v
• average diameter tolerance will be within 10% of each specified catalog number
• NaN3 preservative <=0.1%
• recommended storage 2–8oC
• available for order in 5 mL, 15 mL, and 100 mL quantities
• special bulk pricing available for >=500 mL (contact us for a quote)