Silicon (Si), 1000µg/ml in 2%-HNO3/Water, 100ml Back Catalog number: 57014 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 8647.12-50-NN 1,2,3,8,9-Pentachlorodibenzo-p-dioxin,50 µg/mL,n-nonane,1mL, Price on request 9198.21-100-ME Pregnenolone, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 145-13-1 Price on request 1245.9-K-ME n-Nonane Price on request