Method 1613 Internal Standard Spiking Solution, 200ng/ml in Nonane, 0,5ml Back Catalog number: EDF-5999 Availability: In the manufacturer's stock Price on request - + Recommended 673779 2,4-DB-methyl ester, 100 µg/ml, Ethyl acetate, 5 Price on request DF-234678-S 2,3,4,6,7,8-Hexachlorodibenzofuran , 1.2ml x 50ug/ml, nonane Price on request 10536.22-2.53UGX5 [13C22 15N2]-Tetracycline Price on request