Interference Standard 4 Back Catalog number: 52041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1350.1-100-ME Chloroform, 99+%,100 µg/mL,MeOH,1mL, Price on request 95185 Supelco Column # 101336-05 Price on request MBP-CP Mass-Labelled Coplanar PCB Mixture, 10.0µg/mL in Nonane/8% toluene, 1,2ml Price on request