Niobium (Nb) Back Catalog number: 58041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0727.12-K-IO 1,8-Dimethylnaphthalene, 1000µg/ml in Isooctane, 1ml Price on request 673236 Clomazone, 10.0 µg/ml, Acetonitrile, 10ml Price on request L20007700IO PCB No. 77, 10µg/ml in Isooctane, 10ml Price on request