CLP Calibration Std. IV Back Catalog number: 52152 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72281 L-Tryptophan Price on request 1330.22-100-IO Dibenz[a,h]anthracene-d14, 100µg/ml in Isooctane, 1ml Price on request CCHLORD cis-Chlordane (a), 1.2mL x 100ug/mL, nonane Price on request