Retention Time Verification Standard

4-Fluoro-1,3-dioxolan-2-one, >98%, 5g

2-Chloro-4-tert-butylphenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 98-28-2

EPA Method 533 Native Primary Std (br/l mix), 500ng/ml in MeOH, 1,2ml