COD Calibration Standard

2,4-DB-methyl ester, 10.0 µg/ml, Ethyl acetate,

Sildenafil-d3 (N-methyl-d3-piperazine), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1126745-90-1

Perfluoro-4-ethylcyclohexane sulfonic acid, potassium salt, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 335-24-0