Ammonia as (NH4+)

Benzyl salicylate, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 118-58-1

4-Cyclohexylbutyric acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 4441-63-8

ASTM D-2887 Column Test Standard