Spiking Standard 5 Back Catalog number: 52071 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679158 Mepanipyrim-2-hydroxypropyl, 100 µg/ml, Acetonitr Price on request 680614 Dibutyl maleate, 250mg Price on request 10536.22-2.53UGX5 [13C22 15N2]-Tetracycline Price on request