A kind of Schiff base compound as sb(Ⅲ) ion colorimetric probe and its preparation method and application

An ion ratio and compound technology, which is applied in the field of fluorescent ion colorimetric probes to achieve the effects of simple synthesis route, good selectivity and easy preparation

Active Publication Date: 2019-11-12
ZUNYI MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, studies on Sb(Ⅲ) colorimetric probes are still very rare so far

Method used

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  • A kind of Schiff base compound as sb(Ⅲ) ion colorimetric probe and its preparation method and application
  • A kind of Schiff base compound as sb(Ⅲ) ion colorimetric probe and its preparation method and application
  • A kind of Schiff base compound as sb(Ⅲ) ion colorimetric probe and its preparation method and application

Examples

Experimental program
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Embodiment 1

[0032] The preparation method of the Sb(III) ion colorimetric probe of the embodiment of the present invention comprises the following steps:

[0033] Dissolve 1,2-phenylenediamine and 4-dimethylaminocinnamaldehyde in ethanol at room temperature, use acetic acid as a catalyst, recrystallize, purify and separate after reaction to obtain the target product Sb(III) ion colorimetric probe.

[0034] Its preparation route is as follows:

[0035]

[0036] Specifically, the preparation method of the Sb(III) ion colorimetric probe comprises the following steps:

[0037] Accurately weigh 0.22g (2mmol) of 1,2-phenylenediamine (1) and 0.35g (2mmol) of 4-dimethylaminocinnamaldehyde (2) into a round bottom flask, add ethanol to dissolve it, and then dropwise add Two drops of acetic acid were stirred at room temperature to react. TLC followed the reaction progress, and the reaction was completed in about 1 h, and a large amount of yellow-brown solid was precipitated. Then, it was filte...

Embodiment 2

[0038] The difference between embodiment 2 and embodiment 1 is only that ethanol is replaced by methanol.

Embodiment 3

[0039] The difference between Example 3 and Example 1 is that ethanol is replaced by N,N-dimethylformamide.

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Abstract

The invention discloses a Schiff base compound as a Sb(III) ion colorimetric probe as well as a preparation method and use thereof. The Sb(III) ion colorimetric probe is prepared by using 1, 2-phenylenediamine and 4-dimethylaminocinnamaldehyde as raw materials, and the synthesis is completed only in one step; furthermore, the synthesis conditions are mild, and the yield is high. The ion colorimetric probe has better selectivity and higher sensitivity to metal ions Sb(III). After the Sb(III) is added, an ion colorimetric probe solution rapidly becomes rose red from pale yellow, the absorbance of the solution has a better linear relationship with the ion concentration, but the addition of other common metal ions basically does not cause the change of the color and absorbance of the solution.The ion colorimetric probe can be used for performing special and rapid detection on the Sb(III), is strong in anti-interference ability, can be widely used in the content detection of the Sb (III) in an aqueous solution system as well as visual colorimetric detection, thus having a good application prospect in the fields of analysis and detection.

Description

technical field [0001] The invention belongs to the technical field of fluorescent ion colorimetric probes, and in particular relates to a Schiff base compound as a Sb(III) ion colorimetric probe, a preparation method and application thereof. Background technique [0002] Heavy metal pollution has always been a concern. Antimony (Sb) is a rare heavy metal element that mainly exists in the +3 and +5 valence states in the natural environment. Sb and its compounds are widely used in industry, and can be used to make flame retardants, ammunition, ceramics, semiconductors, insect repellants, etc. In recent years, due to excessive mining, smelting and waste discharge, the environmental problem of Sb pollution has been paid more and more attention. Sb and its compounds are potentially toxic and carcinogenic, and they are mainly absorbed into the body through the respiratory tract and digestive tract. Damage the liver, heart and nervous system, the specific symptoms are cough, vom...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C251/16C07C249/02G01N21/31
CPCC07C251/16G01N21/31
Inventor 胡云陈爱乾
Owner ZUNYI MEDICAL UNIVERSITY
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