| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1163261 | Analytica Chimica Acta | 2015 | 6 Pages |
•Lanthanide–azide based sulfide sensors were synthesized and characterized.•The probes have excitation and emission profiles compatible with sulfide-contaminated samples from the petrochemical industry.•A terbium-based probe was used to measure the sulfide concentration in oil refinery wastewater.•A europium-based probe had compatibility with partially refined crude oil samples.
A series of lanthanide-based, azide-appended complexes were investigated as hydrogen sulfide-sensitive probes. Europium complex 1 and Tb complex 3 both displayed a sulfide-dependent increase in luminescence, while Tb complex 2 displayed a decrease in luminescence upon exposure to NaHS. The utility of the complexes for monitoring sulfide levels in industrial oil and water samples was investigated. Complex 3 provided a sensitive measure of sulfide levels in petrochemical water samples (detection limit ∼ 250 nM), while complex 1 was capable of monitoring μM levels of sulfide in partially refined crude oil.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide
