Carbetamide,1000 µg/mL,neat,1mL,

Ethanol standard in serum,2.0g/L,serum, 1.5mL

3,3',5,5'-Tetrabromobisphenol A dimethyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 37853-61-5

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.