Retention Time Marker Standard Back Catalog number: 93609 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended TBDE-83R Great Lakes Chemical DE-83™ Decabromodiphenyl Oxide, 1.2ml x 100ug/ml, toluene Price on request 82411 EPA Method 8240A Sys Perf Check Cmpds Price on request 70411 7,12-Dimethylbenz(a)anthracene Price on request