GPC Calibration Standard Back Catalog number: 90877 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 5MBDE47 2,2',4,4'-Tetrabromo-5-methoxydiphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 92258 Semi-Volatile Internal Standard Price on request 673994 Nitrofen, 100mg Price on request