Liquid scintillation counting for removable contamination on wipes. If enhanced containment is necessary, handle volatile compounds in closed systems vented through suitable traps. If both are used in the same area, establish controls that are conservative for both isotopes. Some S-35 compounds generate volatile fractions during lyophilization or incubation. Check for airborne and surface contamination.
Charcoal is effective in absorbing and minimizing airborne contamination.