A novel reaction-based fluorescent probe for the detection of cysteine in milk and water samples
| Autor: | Liu Yongguo, Shaoxiang Yang, Hongyu Tian, Sun Baoguo, Wang Jialin, Wang Hao, Hao Yanfeng |
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| Rok vydání: | 2018 |
| Předmět: |
Color
010402 general chemistry 01 natural sciences Fluorescence Analytical Chemistry Limit of Detection Animals Cysteine Color response Fluorescence response Fluorescent Dyes Detection limit Chromatography 010405 organic chemistry Chemistry Drinking Water Water General Medicine 0104 chemical sciences Fluorescence intensity Milk Spectrometry Fluorescence Food Analysis Food Science |
| Zdroj: | Food Chemistry. 262:67-71 |
| ISSN: | 0308-8146 |
| DOI: | 10.1016/j.foodchem.2018.04.084 |
| Popis: | A novel fluorescent probe 3′-hydroxy-3-oxo-3H-spiro [isobenzofuran-1,9′-xanthene]-6′-yl-2,4-dinitrobenzenesulfonate (probe 1) was designed and synthesized as a visual sensor for the detection of cysteine levels in milk and water samples. The addition of cysteine to the solution of probe 1 resulted in an increase in fluorescence intensity and color change, from light yellow to yellow-green. The distinct color response indicated that probe 1 could be used as a visual sensor for cysteine. Cysteine can be detected quantitatively at concentrations between 0 and 400 μM and the detection limit of the fluorescence response to the probe was 6.5 μM. This suggests that probe 1 could be used as a signaling tool to determine the cysteine levels in samples, such as milk and water. |
| Databáze: | OpenAIRE |
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