| Autor: |
Warut Singseeta, Budsakorn Wongsing, Puttaraksa Naksen, Purim Jarujamrus, Somkid Pencharee |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Talanta Open, Vol 7, Iss , Pp 100199- (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2666-8319 |
| DOI: |
10.1016/j.talo.2023.100199 |
| Popis: |
In this work, we developed a portable multispectral fluorometer for determining formalin (FA). We used nitrogen-doped carbon dots (N-CDs) as the fluorescence probe, based on right-angle fluorescence spectrometry with twin excitation high-power light emitting diode sources. The multispectral spectroscopy sensor was used as a detector for fluorescence intensity. The fluorescence intensity values were displayed from 0 to 65535 a.u. The FA determination results show a linear relationship in the FA concentration range of 10-75 mg L−1 with r2 = 0.9908. The limit of detection (LOD) was 2.09 mg L−1 (calculated from 3SDblank/slope (n = 3)). In addition, the percentage of relative errors compared with the standard method and standard instrument shows less than 10 percent. The performance of a portable multispectral fluorometer in actual samples exhibited no significant difference compared to the validation instrument results. Therefore, the development of a portable multispectral fluorometer can be used as a fluorometer, and the measurement performance is comparable to a standard fluorescence spectrometer. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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