Tricyclic Mix

2-(4-Nonylphenoxy)acetic acid isomer mixture,10 µg/mL,isooctane,1mL,

Mirtazapine, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 61337-67-5

EPA Method 551.1 Internal Standard