Internal Standard - Surrogate Mix Back Catalog number: 96032 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678535 4-Chlorophenoxyacetic acid, 100 µg/ml, Acetonitri Price on request 685011 D3-(-)-Altenuene, 100 µg/ml, Acetonitrile, 1ml Price on request 98457 PW OC Pesticides Price on request