MA - VPH Matrix Spiking Sub Back Catalog number: 91965 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79894 Tetrachloro-m-xylene Price on request MDD-12478 1,2,4,7,8-Pentachloro[13C12]dibenzo-p-dioxin, 1.2ml x 50ug/ml, toluene Price on request 72507 1,5-Pentamethylenetetrazole Price on request