: Samples are first treated with a brominating digestion (potassium bromate/bromide) to convert all mercury forms into mercuric ions ( Hg2+cap H g raised to the 2 plus power
: Gold, silver, and iodide can interfere with the reduction process. 245.7z.001
: Stannous chloride is added to reduce these ions into elemental mercury vapor ( Hg0cap H g to the 0 power : Samples are first treated with a brominating
To maintain accuracy, analysts must manage several chemical interferences: 245.7z.001
: High-purity argon gas carries the vapor into the CVAFS analyzer , where it is exposed to UV light (253.7 nm), causing fluorescence that is then measured. Critical Interferences
