O-Desmethylvenlafaxine,100 µg/mL,MeOH,1mL,

Decachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

2,6-Diisopropylphenol-d18,1000 µg/mL,MeOH,1mL,

EPA Method 8141 Surrogate Standard