Rubidium (Rb) Back Catalog number: 56037 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3438.10-100-CY Metamitron Price on request 82701 EPA Method 8270A - Mix #14 Price on request 2761.14-100-AN 3,3'-Dimethoxybenzidine,100 µg/mL,acetonitrile,1mL, Price on request