Glycolic acid

Thiofanox-sulfoxide, 100 µg/ml, Acetonitrile, 5m

EPA 8040 Surrogate Standard S-4241 2mg/mL each in isopropanol, 1 mL, 5 x 1mL, 5mL 2-Fluorophenol 2,4,6-Tribromophenol

Phosphate (PO4-3) as P