Internal Standard Back Catalog number: 95665 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MCDE-61 2,3,4,5-Tetrachloro[13C12]diphenyl ether, 1.2ml x 50ug/ml, nonane Price on request 679566 Nequinate, 25mg Price on request 35031 EPA Method 525.2 - Internal Standard, 2000µg/ml in MeChl, 1ml Price on request