Multi-Element Solution 4 Back Catalog number: 52136 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11759.12-100-IO 2,2',3,3',4,6,6'-Heptachlorobiphenyl,100 µg/mL,isooctane,1mL, Price on request 92738 Aroclor 1260 Price on request BR-PFOA Perfluorooctanoic acid with branched isomers, 50µg/ml in MeOH, 1,2ml Price on request