Today, we experienced a torch melt on our 5100 ICP-OES - see photo. Initial checks of our instrument have not revealed the cause. The following where checked:
1. Chiller on and coolant at correct level.
2. Torch correctly positioned in Rf coil.
3. Aux. gas flow set as normal flow of 1.5 mL/min.
4. Sample introduction system was cleaned the previous day, a spare intro set was placed onto the instrument (clean and dry).
In addition, we do not experience devitrification and no not run samples in a salt matrix.
Any ideas of potential causes?
