ABSTRACT

Note: Metal contamination or prolonged storage in glass vessel exposed to light will result in a solution that would degrade Cy5.

• 2 M HEPES

4.77 g HEPES-free acid in 10 mL water

Filter sterilize

Store at room temperature for up to 3 months

• 0.1 M Na2CO3

0.53g in 50 mL water

• 0.1 M sodium bicarbonate pH 9.0

4.2 g of NaHCO3 in 500 mL water (pH should be about 8.5)

Adjust pH to 9.0 by adding 0.1 M Na2CO3 (25-30 mL)

Filter-sterilize the buffer

Note: Recommend making fresh, although it may be dispensed into aliquots and stored at –20°C for up to 2 months.