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Schiff base compound as Sb(III) ion colorimetric probe as well as preparation method and use thereof

A technology of ion ratio and compound, applied in the field of fluorescent ion colorimetric probes, to achieve the effects of simple processing, easy preparation and good selectivity

Active Publication Date: 2018-07-20
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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  • Schiff base compound as Sb(III) ion colorimetric probe as well as preparation method and use thereof
  • Schiff base compound as Sb(III) ion colorimetric probe as well as preparation method and use thereof
  • Schiff base compound as Sb(III) ion colorimetric probe as well as preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0033] At room temperature, 1,2-phenylenediamine and 4-dimethylaminocinnamaldehyde were dissolved in ethanol, acetic acid was used as a catalyst, and the target product Sb(Ⅲ) ion colorimetric probe was obtained by recrystallization and purification after the reaction.

[0034] The preparation route is as follows:

[0035]

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

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

Embodiment 2

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

Embodiment 3

[0039] The difference between Example 3 and Example 1 is only that ethanol is replaced with 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 specifically relates to a Schiff base compound used as an Sb(Ⅲ) ion colorimetric probe and 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, which mainly exists in the natural environment as +3 and +5 compounds. Sb and its compounds are widely used in industry and can be used to make flame retardants, ammunition, ceramics, semiconductors, insect repellents, etc. In recent years, due to excessive mining, smelting, and waste discharge, the environmental problem of Sb pollution has received increasing attention. Sb and its compounds are potentially toxic and carcinogenic, and are mainly taken into the body through the respiratory and digestive tracts. Damage to the liver, heart and nervous system. Specific symptoms include coughing, vomiting, abdominal ...

Claims

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Application Information

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Patent Type & Authority Applications(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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