8260 Surrogates / Internals Standard Back Catalog number: 91515 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 61221 Aroclor 1221 in Transformer Oil Price on request C173133 (+)-Camphene, 25mg Price on request 677301 Caffeine, 100 µg/ml, Methanol, 1ml Price on request