EPA Method 8140/8141 Analytes Back Catalog number: 81400 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 95305 Paraquat-d8 Price on request 50800 Spiking Solution #1 Price on request 66180 PCB No. 180, 100µg/ml in Isooctane, 1ml Price on request