Palladium ion probe and preparation and application thereof

A palladium ion probe and ion technology, which are applied to the palladium ion probe and the fields of preparation and application thereof, can solve the problems of poor water solubility, long response time, influence detection by coexisting ions, etc., and achieve short response time, simple preparation method and raw material. low cost effect

Inactive Publication Date: 2015-07-08
SHAANXI XUEQIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing palladium ion probes have problems such as poor wate...

Method used

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  • Palladium ion probe and preparation and application thereof
  • Palladium ion probe and preparation and application thereof
  • Palladium ion probe and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: Preparation of the compound whose structural formula is represented by formula (I), namely compound (1).

[0045] (1) Dissolve 8-hydroxyjulonidine-9-carbaldehyde and 3-bromopropyne in the organic solvent acetonitrile according to the molar ratio of 1:1, reflux under stirring for 10 hours, steam out the solvent, use a silica gel column The intermediate product 8-(propynyloxy)julonidine-9-carbaldehyde was obtained by chromatography in a yield of 80% by weight.

[0046] (2) The obtained intermediate product 8-(propynyloxy)julonidine-9-carbaldehyde and benzothiazole acetonitrile were dissolved in the organic solvent methanol according to the molar ratio of 1:1, and the reaction was refluxed under stirring for 10 hours , after the solvent was evaporated, the pure compound (1) was obtained by silica gel column chromatography with a yield of 85%.

[0047]The pure product of compound (1) was analyzed by nuclear magnetic resonance (Bruker AVANCE 300MHz, Bruker, Switz...

Embodiment 2

[0054] Example 2: Preparation of compound (1).

[0055] The 8-(propynyloxy)julonidine-9-carbaldehyde prepared in step (1) of Example 1 was reacted with benzothiazole acetonitrile in a molar ratio of 1:1.5, and 8-(propyne Oxy)julonidine-9-carbaldehyde and benzothiazole acetonitrile were dissolved in organic solvent methanol, and the reaction was refluxed under stirring for 10 hours. After the solvent was evaporated, methanol was used as a solvent to obtain a red compound ( 1) in 68% yield.

Embodiment 3

[0056] Example 3: Using compound (1) as a probe molecule to detect palladium ions.

[0057] Compound (1) was formulated as a fluorescent probe into 10 -5 mol / L solution, take 2mL of pure water, tap water, river water and lake water respectively, add the same amount of probe solution in turn, react for 5 minutes, and then detect its ultraviolet-visible spectrum and fluorescence spectrum, the experiment shows that the palladium ion in river water and lake water The content is relatively large, and the content of palladium ions in tap water and purified water is relatively low.

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Abstract

The invention relates to a palladium ion probe, and the palladium ion probe has good water solubility and short metal ion response time, is free of coexisting ions to affect detection, is a good colorimetric or fluorescent probe, and can be used as the colorimetric or fluorescent probe for detecting metal palladium ions in an aqueous or organic solvent. The invention also relates to a method for preparing the palladium ion probe, the method is simple in operation, raw material cost is low and the product purity is high. The palladium ion probe as the colorimetric or fluorescent probe for detecting the palladium ions in water is short in palladium ion response time, can realize detection of the palladium ions in water, and has potential application value in the living cell fluorescence imaging detection.

Description

technical field [0001] The invention belongs to the technical field of molecular probes, and relates to a palladium ion probe and its preparation and application. Background technique [0002] As a catalyst, palladium is widely used in organic synthesis and automobile exhaust treatment, and the impact of palladium ions on the environment has attracted worldwide attention. After palladium ions enter the environment, they accumulate in soil and plants, pollute water bodies, and cause harm to human health. In addition, palladium ions can also combine with amino acids, proteins, DNA and other macromolecules containing sulfhydryl groups, affecting normal physiological activities. The detection of palladium ions is particularly important in view of the hazards to the environment and human health. [0003] Traditional detection methods such as atomic emission spectrometry (AES), atomic absorption spectrometry (AAS), atomic fluorescence spectrometry (AFS), plasma mass spectrometry...

Claims

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Application Information

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IPC IPC(8): C07D455/04C09K11/06G01N21/64G01N21/78
CPCC07D455/04C09K11/06C09K2211/1483G01N21/6428G01N21/78
Inventor 李连庆孟丽萍
Owner SHAANXI XUEQIAN NORMAL UNIV
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