To study photochemical transformation of dissolved organic molecules under controlled conditions, we have set up a closed irradiation.
The setup consists of several parts:
- Black box to shield environment from UV irradiation
- Water bath with heater and flow-through pump to keep temperature level constant, a fan is mounted on the back wall for air exchange
- 8 UVA-340 fluorescent tubes (Q-Lab), distance to sample can be adjusted
- Quartz tubes (~170 mL volume) to irradiate aqueous samples
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