V, 1000 µg/mL in 2% HNO3, 100ml

1,5-Bis-(1-methylethyl)-biguanide HCl, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 45095-69-0

2,4,6-Collidine, neat, Solvent-neat, Unit 10MG, # of units-1, Cas.no. 108-75-8

EPA Method 625 Base/Neutrals Mix #2