4-Chlorophenol, 100 µg/ml, Methanol, 5ml

pH 12.45 Standard @ 25°C

2-Perfluorodecyl-[1,1-2H2]-[1,2-13C2]-ethanol (10:2), 50µg/ml in MeOH, 1,2ml

Sulfur Calibration Stock Solution Thiophene 1000 µg/mL in Toluene; unit: 5x1mL ampoules Please request for diluted samples in the range 1 to 1000 ng/mL.