8260Matrix Spike Back Catalog number: 97031 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 63060 2,3,4,4'-Tetrachlorobiphenyl (60) Price on request BDE-099S 2,2',4,4',5-Pentabromodiphenyl ether,50µg/ml IO,1m Price on request 684530 D3-Ipronidazole, 100 µg/ml, Methanol, 1ml Price on request