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V2O5 - use conc
hot Sulphuric acid adding hydrogen peroxide carefully dropwise until clear)
Ores (fuse in Pt0 with KF + K2S2O7 - no KF if silica not present)
ICP-MS INTERNAL STD
1000ug/mL THORIUM 30mL CL01.1501.0100 V2O5 - use concElement properties Thorium Location: Period 7 (actinoid) Atomic Weight: 232. 0381 Coordination Number: 8 Chemical Form in Solution: Th(OH)3+ and Th(OH)22+ Storage & Handling: Keep tightly sealed when not in use. Store and use at 20 4C. Do not pipet from container. Do not return portions removed for pipetting to container. Chemical Compatibility: Soluble in HCl and HNO3. Avoid H3PO4, H2SO4, and HF, although solubilities may not be a problem depending