Custom Metals Standard

Ampicillin trihydrate, Comet assay grade, , Solvent-, Unit , # of units-, Cas.no. 7177-48-2

Validation Mixture for Oxygenates and PONA 33 Analytes each Wt.% s listed; units: 1x1mL, 5x1mL neat Use this standard to monitor and make adjustments to the total operation of the system. Name Wt.%

4-Aminophenol, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 123-30-8