Semi-Volatile Standard

(+/-)-Epinephrine hydrochloride,1000 µg base/mL,MeOH,1mL,

Atrazine-d5 (ethyl-d5),100 µg/mL,acetonitrile,1mL,

2,2',4,6,6'-Pentachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane