Pesticides + Surrogates Back Catalog number: 92198 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677342 Nonafluoro-1-butanesulfonic acid, 50 µg/ml, Metha Price on request 679840 Tris-(2-chloropropyl)phosphate, 100 µg/ml, Methan Price on request 57011 Sodium (Na), 1000µg/ml in 2%-HNO3/Water, 100ml Price on request