| Autor: |
Anderson, Benjamin R., Gese, Natalie, Nawani, Pranav, Eilers, Hergen |
| Předmět: |
|
| Zdroj: |
Applied Physics B: Lasers & Optics; Dec2023, Vol. 129 Issue 12, p1-8, 8p |
| Abstrakt: |
Currently, the majority of phosphate-sensitive phosphors reported in the literature are metal-based complexes that require complicated and expensive synthesis to prepare. In this study we investigate the phosphate detecting capabilities of an inexpensive off-the-shelf phosphor: Eu(acac) 3 . We characterize its phosphate sensitivity as a function of sensor concentration and find that the quenching coefficient is inversely proportional to the sensor concentration. This results in the limit-of-detection scaling linearly with sensor concentration. We determine its concentration-independent sensitivity to be 1.558 ± 0.012, which results in our lowest sensor concentration (44 μ M) having a limit-of-detection of 3.39 ± 0.68 μ M. We also find that for phosphate concentrations less than the sensor concentration, the fluorescence intensity ratio behaves linearly, but transitions to a non-linear functionality as the phosphate concentration exceeds the sensor concentration. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
|
Nepřihlášeným uživatelům se plný text nezobrazuje |
K zobrazení výsledku je třeba se přihlásit.
|
