Arsenic (As) Back Catalog number: 50439 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2911.17-100-ME Sodium p-n-undecylbenzenesulfonate, 100µg/mL in MeOH, 1ml Price on request 59242 AA Standard #2 Price on request 92353 EPA Method 8141 Standard Price on request