Publikace na Přírodovědecká fakulta, Ústřední knihovna |
2021
Abstrakt
Volatile species of rhenium were generated using a 19 W thin film flow-through UV photoreactorfrom 6 mol L-1 formic acid. The addition of 1000 mg L-1 Cd2+ and 10 mg L-1 Fe2+ as sensitizers was found to be critical for achieving analytically useful photochemical vapor generation efficiency.
Wrapping the UV photoreactor in aluminum foil also had a positive effect on the photochemical vapor generation efficiency and the optimal carrier flow rate was found to be 1.6 mL min-1. Using these optimal conditions, the limit of detection and repeatability (at 100 ng L-1 Re) were determined to be 0.2 ng L-1 and 4.8% (n = 10), respectively.