EPA Method 1657 Analytes Back Catalog number: 31784 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 677019 Imidacloprid olefin, 10 µg/ml, Acetonitrile, 10m Price on request 34002 EPA Method 524.2 - Additional Analytes Price on request L429-RS Method 429 Recovery Standard Solution, 100µg/ml in Isooctane/10% toluene, 1,2ml Price on request