QC Standard 1 Back Catalog number: 52084 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91830 WS 038 Herbicides AMP 2 - Methyl Derivatives Price on request 0179.17-500-IO 2-n-Pentyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 147793-32-3 Price on request DF-LCS-B200 Mass-Labelled PCDD/PCDF Solution/Mixture, 1.2ml , nonane Price on request