7H-Perfluoroheptanoic acid, 50µg/ml in MeOH, 1ml Back Catalog number: 2835.7-50-ME Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended S-4051-3K-10HW Sulfur Calibration Mixtures: Di-n-butyl sulfide in Heavy White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C) Price on request 2248.22-100-5AN HT-2 Toxin, 100µg/mL, Solvent-acetonitrile, Unit 5mL, # of units-1, Cas.no. 26934-87-2 Price on request NIST-1849A Infant/Adult nutritional powder (milk), 10 x 10g Price on request