Performance qualification (PQ) determines the precision of the LC system. Our performance check mix for LC-RI consists of five simple sugars in varied concentrations. We prepare the reference material in water, dehydrate it, and package it dry for enhanced stability.
Glucose (50-99-7), 2.1 mg
Fructose (57-48-7), 2.0 mg
Lactose (5989-81-1), 4.4 mg
Maltose (6363-53-7), 4.5 mg
Sucrose (57-50-1), 4.0 mg