Retention Time Marker Solution Iowa OA-2

Morphine-3-glucuronide, 1000µg base/mL, Solvent-DMF, Unit 1mL, # of units-1, Cas.no. 20290-09-9

Sodium hyaluronate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 9067-32-7

Calcium Chloride Solution (CaCl2)