Theophylline, 100µg/ml in MeOH, 5ml

Didodecyldimethylammonium bromide, 100 µg/ml, Ace

2-Isopropyl-6-methyl-4-pyrimidinol, 1000µg/ml in Acetonitrile, 1ml

4 Fluorinated Internal Standard Mix 4 Analytes, each Wt.% as listed; units: 1x10mL, 5x10mL neat Name Wt.% Name Wt.% Fluorobenzene 16.7 1-Fluoronaphthalene 8