Trace Elements #4 Back Catalog number: 52328 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9136.12-50-IO 2,2',3,3',4,4',6,6'-Octabromodiphenyl ether,50 µg/mL,isooctane,1mL Price on request EC9605-RS Recovery Standard Solution, 1.2ml, isooctane Price on request 73681 3,4,5-Trimethylphenol Price on request