WS Drinking Water Kit Back Catalog number: 38235 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended E888862 Estradiol 17-Valerate-d9, 1mg Price on request S-4376-1-4.5AC ISO 18857-1 4-n-Nonylphenol (ring13C6), Internal standard 1 ng/µL, in acetone, 5mL Price on request ACQ-WH03-030 Ethanol standard in whole blood,0.3g/L,whole blood, 3mL Price on request