Method 1613 Internal Standard Spiking Solution, 200ng/ml in Nonane, 0,5ml Back Catalog number: EDF-5999 Availability: In the manufacturer's stock Price on request - + Recommended 55186 CWA Lithium Price on request MOCP-MXA Mass-Labelled OC Pesticide Mixture, 2µg/ml in Nonane, 1,2ml Price on request 11908.20-100MG Fluorescein (free acid),neat,neat,100mg, Price on request