Preparation and application of novel phenazine imidazo phenylboronic acid fluorescence sugar probe
A technology of azole-based phenyl boron and fluorescent sugar, which is applied in the field of preparation of novel phenazinoimidazolyl phenylboronic acid-based fluorescent sugar probes, can solve the problems such as the difficulty in changing optical changes and spectral properties, and achieve high selectivity and sensitivity of sugar determination Good stability, stable fluorescence effect
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[0027] A preparation method of the novel phenazinoimidazolylphenylboronic acid fluorescent sugar probe, the steps are as follows:
[0028] 1) Mix 1ml of concentrated hydrochloric acid with 40ml of distilled water to obtain concentrated hydrochloric acid aqueous solution, add 1.0g of o-phenylenediamine, stir to dissolve it to obtain o-phenylenediamine solution, add 10g of FeCl 3 ·6H 2 O was dissolved in 20ml of distilled water to obtain an aqueous solution of ferric chloride. Slowly pour the aqueous solution of ferric chloride into the above-mentioned o-phenylenediamine solution under stirring conditions, that is, a blood-red precipitate would appear. Stand for 24 hours, then suction filter, wash away ferric chloride with water to obtain the crude product, add 20 times the amount of distilled water, heat to 85°C for recrystallization, and fully dry to obtain the crude product mixture of 2,3-diaminophenazine. Add 10ml of 2.5mol / L NaOH solution, add the crude product mixture int...
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