Mass-Labelled PCB Solution , 1.2ml x 20ng/ml, nonane Back Catalog number: PCB-SS-A20 Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended FPEPA 3-Perfluoropentyl propanoic acid (5:3), 50µg/ml in MeOH, 1,2ml Price on request SFA-015S Methylheneicosanoate C21:0, 10mg/mL in Hexane, 1ml Price on request 684219 N-Nitrosodimethylamine NDMA, 100 µg/ml, Methanol, Price on request