Ibuprofen, 100 µg/ml, Methanol, 1ml

Dodecylbenzene (hard type) (mixture of branched chain isomers), 500ml

Trixylyl phosphate, purified ion m/z 424 (heptamethyl),100 µg/mL,isooctane,1mL,

Diclofenac sodium, 100 µg/ml, Methanol, 1ml