Tri-n-butyl phosphate-d27, 1.2ml x 50ug/ml, toluene

Tramadol-d6 hydrochloride, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no.

Acetic acid, certified, 5ml

2,3,8-Trichloro[13C12]dibenzofuran, 1.2ml x 50ug/ml, toluene