Sensor molecule for recognizing iron ions and fluorine ions through fluorescence-colorimetric relay, synthesis and application for organogel
An organic gel and fluorescence recognition technology, applied in the field of ion detection, can solve rare problems
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[0032] The synthesis and characterization of the sensor molecule S of the present invention and its application in relay colorimetry / fluorescence recognition of iron ions and fluorine ions will be further described below through specific examples.
[0033] 1. Preparation of sensor molecule S
[0034] In 50ml absolute ethanol, add 1.49g (4×10 -3 mol) N-methoxycarbonylmethyl-2-undecylbenzimidazole, 2.17g 80% hydrazine hydrate (4×10 -2 mol) at a temperature of 80°C for 10 hours, after the reaction was completed and cooled to room temperature, the solvent was removed by rotary evaporation, the sample was mixed and loaded on the column, and eluted with chloroform:methanol=100:1 (v / v), and the light yellow solid product was obtained as Sensor molecule S; yield 78.6%. Its mass spectrum see figure 1 .
[0035] Changing the ratio of substrate N-methoxycarbonylmethyl-2-undecylbenzimidazole and hydrazine hydrate, as well as the amount of reaction time and reaction temperature will ch...
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