Preparation method of zearalenone ratio fluorescence probe
A technology of zearalenone and ratiometric fluorescent probes, which is applied in the fields of nano-optics, fluorescence/phosphorescence, and luminescent materials, can solve the problems of expensive instruments, low sensitivity, and complicated operations, and achieve high selectivity, high sensitivity, and The effect of simple preparation process
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specific Embodiment 1
[0022] Specific embodiment 1, the preparation of zearalenone fluorescent probe comprises the following steps:
[0023] (1) Preparation of silicon quantum dots: Add 0.3180g of sodium citrate to 8mL of glycerin, pass through argon protection, stir for 20min, then add 3-aminopropyltriethoxysilane (APTES) (as silicon source ), continue to stir for 10 min, then transfer to an oil bath, and raise the temperature to 185° C. to continue the reaction for 1.5 h. The solution changed from transparent and colorless to yellow, and had bright blue fluorescence under the irradiation of ultraviolet light, indicating the formation of silicon quantum dots. The crude silicon dots cooled to room temperature were transferred to a dialysis bag with a molecular weight cut-off of 3500 Da (MWCO: 3500), dialyzed for 24 hours with ultrapure water as the dialysate, and the solution in the dialysis bag was collected and lyophilized for storage.
[0024] (2) Preparation of cadmium telluride quantum dots: ...
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