Mass-Labelled HCH Solution/Mixture, 2µg/ml in Nonane, 1,2ml Back Catalog number: MHCH-MXA Availability: In the manufacturer's stock Price on request - + Recommended 56033 Arsenic (As) Price on request 59910 Cations Std. Level 5 Price on request 53101 ICP-MS Verification Standard #2 Price on request