Internal Standard Stock Solution, 1.2ml, nonane Back Catalog number: EPA-1668IS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 677047 Diethyl adipate, 1ml Price on request 34002 EPA Method 524.2 - Additional Analytes Price on request 682186 D14-Trifluralin, 100 µg/ml, Acetonitrile, 1ml Price on request