EPA Method 8315 Calibration Mix #2 Back Catalog number: 83510 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10864.10-100-ME Serotonin-13C2,15N hydrochloride (ethylamine-13C2,15N),100 µg base/mL,MeOH,1mL Price on request CA16270300 Pirimiphos-methyl-N-desethyl, 100mg Price on request C300800-1G Chitin, Practical Grade, 1g Price on request