Imidacloprid, 100µg/ml in methanol, 1ml Back Catalog number: S-12206M1-1ML Availability: In the manufacturer's stock Price on request - + Recommended 78004 2,4-D Price on request S-4142-2-IO Low level Nitrogen Calibration Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4142-0 Blank S-4142-05 0.5 S-4142-1 Price on request 92221 VOC Mix B, 2000ug/ml in MeOH, 1ml Price on request