Internal Standard Spiking Solution, 1.2ml, nonane Back Catalog number: EPA-513ISS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended DF-1247-S 1,2,4,7-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 682030 D3-Sulfamethoxypyridazine, 10.0 µg/ml, Methanol, Price on request 680324 Triamcinolone acetonide, 250mg Price on request