WS Trace Elements #2 Back Catalog number: 55013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681953 Paraoxon-ethyl, 10.0 µg/ml, Acetone, 10ml Price on request 1939.6-1MLX5 1-(Trimethylsilyl)imidazole, neat, Solvent-neat, Unit 1mL, # of units-5, Cas.no. 18156-74-6 Price on request 0176.14-500-IO 2-Ethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 8916-98-8 Price on request