10X HBS (stocks)

10 X HBS from stock solutions

To make mL 10X HBS/Ca/Mg
add: mL 1M CaCl2.
add: mL 1M MgCl
add: mL 1M KCl
add: mL 5M NaCl
add: mL 1M HEPES

pH 7.3 with NaOH

Filter sterilize