Rare earth complex fluorescent probe, its preparation method and application in methanol impurity detection

A technology of rare earth complexes and fluorescent probes, which is applied in the field of rare earth complex fluorescent probes and its preparation, can solve problems such as time-consuming, efficiency and benefit need to be improved, and complicated testing process, and achieve the effect of simple method

Inactive Publication Date: 2012-10-24
SUN YAT SEN UNIV
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of monitoring whether methanol contains impurities is generally realized by gas chromatography, but this method requires the use of large-scale GC-MS instruments, the testing process is complicated and time-consuming, and the efficiency and benefits need to be improved

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
  • Rare earth complex fluorescent probe, its preparation method and application in methanol impurity detection
  • Rare earth complex fluorescent probe, its preparation method and application in methanol impurity detection
  • Rare earth complex fluorescent probe, its preparation method and application in methanol impurity detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of rare earth complex fluorescent probe I, chemical formula is [Tb 2 (Msal) 6 (H 2 O) 4 ]·6H 2 O, wherein, Msal is 4-methylsalicylic acid, and its preparation method comprises the following steps:

[0042] 1) Dissolve 0.1533 g of 4-methylsalicylic acid (Msal) in 10 mL of water, and adjust the pH to 6 with 0.1M NaOH solution to obtain solution A;

[0043] 2) Add 0.1519g Tb(NO 3 ) 3 ·6H 2 O was dissolved in 10mL of water to obtain solution B;

[0044] 3) Mix solution A and solution B, and place the resulting mixed solution in an open container, slowly volatilize for a week, and precipitate colorless massive crystals, filter, wash the crystals with water three times, and dry to obtain the rare earth complex fluorescent probe I , its yield is 0.2135g, yield rate is 90.9%.

[0045] One crystal of the obtained rare earth complex fluorescent probe I was taken for X-ray single crystal diffraction, and the single crystal analysis results showed that the crystal o...

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 discloses a rare earth complex fluorescent probe, its preparation method and application in methanol impurity detection. The fluorescent probe is a compound of the following chemical formula: [Ln2(L)6(H2O)4].xH2O, wherein Ln is Tb or Eu, L as an electron-donating ligand, is salicylic acid or its derivative, and x ranges from 0 to 8. The preparation method consists of: dissolving the electron-donating ligand in water, adjusting the pH to 5-6.5, mixing the solution with a rare earth salt solution, standing or heating the obtained mixed solution till precipitation of a crystal, and filtering, washing, as well as drying the crystal so as to obtain the rare earth complex fluorescent probe. The binuclear complex synthesized in the invention as a fluorescent probe can effectively detect whether methanol is polluted by impurity solvents. And the detection method is simple, can be realized by employment of a relatively simple fluorometer, and needs no gas chromatograph and other complicated and expensive instruments, thus achieving the detection purposes of convenience and fastness.

Description

technical field [0001] The invention relates to a rare earth complex fluorescent probe and a preparation method thereof, and also relates to the application of the rare earth complex fluorescent probe in detecting whether impurities are contained in methanol and quantifying the impurities. Background technique [0002] Metal-organic complexes have undergone tremendous development in the last 20 years, and their application research has attracted much attention. However, new applications have rarely been reported recently, so how to make metal-organic complexes into new and easy-to-apply functional materials has aroused the interest of many researchers. [0003] Methanol is widely used and is the basic organic chemical raw material and high-quality fuel. It is also one of the important raw materials of pesticides and medicines. For the chemical industry, methanol is often used as a solvent or reaction medium for various reactions. Most of the above have higher requirements...

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
IPC IPC(8): C09K11/06C07F5/00G01N21/64
Inventor 杨洋溢曾承辉朱艺敏
Owner SUN YAT SEN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap