Ingredient	Amount	(Notes) Final Conc.
Cysteine Water	7.8mL	1mM cysteine
Papain	Varies (*190μl for the bottle of 44.0mg/ml)	20 units/ml (400 units total for 20ml worth of sol’n)
H&B conc.	2mL
Carbogen	95% O2 + 5% CO2
HCl 5N	10μl
0.5% Phenol red	20μl	0.001%
Kynurenate 0.5M	10μl	(In 1N NaOH) 0.5mM