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Colorimetric recognition method for uranyl ions

An identification method and technology of uranyl ions, which are used in material analysis by observing the effect on chemical indicators, analysis by chemical reaction of materials, organic chemistry, etc., which can solve the problem of less sensors and interference of uranyl ions. problem, to achieve the effect of good sensitivity and anti-interference ability, good anti-interference ability and broad market prospects

Active Publication Date: 2017-06-06
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very few sensors that use colorimetric analysis to identify uranyl ions, and they will be interfered by other metal ions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Colorimetric Recognition of Uranyl Ion by 5-(Diethylamine)-2-((5-(4-(1,2,3-Triphenylethylene)phenyl)-2-pyridine)diazo)phenol

[0022] The configuration concentration is 10 -3 mol / L dimethyl of 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene)phenyl)-2-pyridine)diazo)phenol Sulfoxide solution, each taking 20 μL of 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene)phenyl)-2-pyridine)diazo) Phenol dimethyl sulfoxide solution in a cuvette, add 1180 μL of dimethyl sulfoxide, 750 μL of purified water, add 50 μL of concentration of 4×10 -4 M's uranyl ion solution, obtained a mixed solution with a total volume of 2000 μL, left it for 10 minutes, placed the solution under natural light, observed the color of the solution, and found that the solution added with uranyl ions was blue, which was effectively different from that presented by other metal solutions. color. The results show that 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene)phenyl)-2-pyridine)diazo)phenol as a...

Embodiment 2

[0024] Colorimetric recognition of iron ions by 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethene)phenyl)-2-pyridine)diazo)phenol

[0025] The configuration concentration is 10 -3 mol / L dimethyl of 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene)phenyl)-2-pyridine)diazo)phenol Sulfoxide solution, each taking 20 μL of 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene)phenyl)-2-pyridine)diazo) Phenol dimethyl sulfoxide solution in a cuvette, add 1180 μL of dimethyl sulfoxide, 750 μL of purified water, add 50 μL of concentration of 4×10 -4 M iron ion solution, obtained a mixed solution with a total volume of 2000 μL, left it for 10 minutes, placed the solution under natural light, observed the color of the solution, and found that the solution added with iron ions was purple, which was effectively different from the blue color presented by uranyl ions. .

Embodiment 3

[0027] Colorimetric Recognition of Nickel Ions by 5-(Diethylamine)-2-((5-(4-(1,2,3-triphenylethylene)phenyl)-2-pyridine)diazo)phenol

[0028] The configuration concentration is 10 -3 mol / L dimethyl of 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene)phenyl)-2-pyridine)diazo)phenol Sulfoxide solution, each taking 20 μL of 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene)phenyl)-2-pyridine)diazo) Phenol dimethyl sulfoxide solution in a cuvette, add 1180 μL of dimethyl sulfoxide, 750 μL of purified water, add 50 μL of concentration of 4×10 -4 M’s nickel ion solution, obtained a mixed solution with a total volume of 2000 μL, placed it for 10 minutes, placed the solution under natural light, observed the color of the solution, and found that the solution added with nickel ions was purple, which was effectively different from the blue color presented by uranyl ions. color.

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Abstract

The invention provides a colorimetric recognition method for uranyl ions. According to the recognition method, 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene) phenyl)-2-pyridine) diazonium) phenol is adopted as a chemical sensor for analyzing and recognizing the uranyl ions. Colorimetric recognition of the uranyl ions can be effectively achieved among multiple metals through 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene) phenyl)-2-pyridine) diazonium) phenol in a mixed solution of dimethyl sulfoxide and water. Recognition of 5-(diethylamine)-2-((5-(4-(1,2,3-triphenylethylene) phenyl)-2-pyridine) diazonium) phenol on the uranyl ions has good selectivity, sensitivity and anti-jamming capability.

Description

technical field [0001] The invention belongs to the technical field of analysis, and in particular relates to a colorimetric identification method for uranyl ions. Background technique [0002] Uranium is a typical radioactive element widely present in the natural environment (Gongalsky, K.B., Impact of pollution caused by uranium production on soil macrofauna, Environ.Monit. Assess.[J] 2003, 89, 197–219.) . It has important scientific and commercial value in the industrial field, and is also an important nuclear fuel (Li, J. ; Zhang, Y. ; Remediation technology for theuranium contaminated environment: a review, Proc. Environ. Sci., [J ] 2012, 13, 1609–1615). However, in the process of uranium mining, a large amount of waste residues will be produced, which will cause great pollution to the environment if not properly disposed of. Studies have shown that long-term exposure to uranium can cause serious diseases such as lung cancer, pancreatic cancer, and bone cancer (Domin...

Claims

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Application Information

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IPC IPC(8): G01N21/78C07D213/76
CPCC07D213/76G01N21/78
Inventor 文君汪小琳胡胜杨亮程冲姜涛田杰陈柏桦王宁
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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