Surrogate Standard Solution, 1.2ml, nonane

POE (15) tallow amine, 1g

Diclofenac D4 acid (phenyl D4), 100 ng/µl, 1.1ml

p-Aminobenzoic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 150-13-0