Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of bipolar bidentate ligand and its synthesis method, application

A bidentate ligand and reaction technology, applied in the field of bipolar bidentate ligand and its preparation, can solve problems such as unsatisfactory detection results, and achieve the effects of enhanced RLS, high sensitivity, and good selectivity

Active Publication Date: 2019-07-16
NANHUA UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the problem of unsatisfactory detection results in the analysis of uranium by the existing resonance light scattering method, and provides a novel bipolar bidentate ligand (IPTP)

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of bipolar bidentate ligand and its synthesis method, application
  • A kind of bipolar bidentate ligand and its synthesis method, application
  • A kind of bipolar bidentate ligand and its synthesis method, application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 Synthesis of Bipolar Bidentate Ligands

[0024] Add 100mL of 0.12mol / L dilute hydrochloric acid to a 250mL round bottom flask, add 60mmol of pyrrole and 5mmol of isophthalaldehyde, and react under magnetic stirring at room temperature in the dark. The reaction system is monitored in real time by TLC. Control suitable reaction time, after TLC monitoring reaction substrate m-phthalaldehyde consumes substantially completely, finish reaction;

[0025] The reaction liquid was neutralized to pH=8-9 with ammonia water, filtered, and the filter cake was continuously washed with petroleum ether until the filtrate was colorless. Send a little of the solid obtained by suction filtration to HPLC to monitor its composition content, and the rest of the solid can be recrystallized with ethyl acetate-petroleum ether or column chromatography (silicon dioxide, petroleum ether:ethyl acetate=100:1-1:1) Purify and vacuum dry to obtain the bipolar bidentate ligand. The yield is 1...

experiment example 1

[0027] Experimental Example 1 Using the ligand obtained in Example 1 to analyze and detect uranium

[0028] Take a 10mL colorimetric tube, add 1mL 10μmol / L ligand solution, then add 1.0mL Tris-HCl buffer solution (pH7.0), an appropriate amount of uranyl standard solution, dilute to 10mL with twice distilled water, and mix Shake the solution well, let it stand at room temperature for 1 hour, scan synchronously with △λ=0, record the resonance light scattering spectrum, and use the resonance light scattering intensity (I RLS ) draw a standard curve to the concentration (c) of uranyl;

[0029] The conventional uranium analysis method in the field and the ligand of the present invention as a probe were used to quantitatively analyze uranyl in environmental water samples by the RLS method, and the results are shown in Table 1.

[0030] Table 1 Comparison of different methods for the determination of uranium in water

[0031]

[0032] It can be seen from Table 1 that kinetic pho...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a bipolar bidentate ligand and a synthetic method and an application thereof. The invention relates to a novel bipolar bidentate ligand IPTP and a synthetic method and an application in uranium analysis. The novel bipolar bidentate ligand IPTP is prepared by performing a reaction on isophthalaldehyde and pyrrole. The IPTP is coordinated with uranyl to enable a system to generate a strong resonance light scattering signal, so that a novel method of detecting uranium by means of a resonance light scattering method is established.

Description

technical field [0001] The invention relates to the field of organic synthesis, in particular to a novel bipolar bidentate ligand, its preparation method and its application in uranium analysis. Background technique [0002] Uranium is a very important energy resource and strategic resource. It has heavy metal toxicity and radioactivity, which can continuously cause harm to human health and even cause cancer. Therefore, the detection of uranium is very important for resource development, health maintenance and environmental protection. At present, the methods for detecting uranium mainly include X-ray fluorescence method, inductively coupled plasma emission spectrometry, radioanalysis, etc., but these methods require expensive instruments and high experimental costs, and are not suitable for routine analysis. The cost of photometric detection is low, but generally requires pretreatment to separate and enrich the sample. Therefore, it is of great significance to establish a...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07D207/323C08G83/00G01N21/47
CPCC07D207/323C08G83/008G01N21/47
Inventor 肖锡林许丽廖力夫王娇蒋敏彭鹏程
Owner NANHUA UNIV