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A probe and method for simultaneously detecting trace amounts of cu2+ and/or hg2+ using the probe

A probe and concentration technology, used in chemical instruments and methods, measuring devices, color/spectral property measurement, etc., can solve problems such as low efficiency, unfavorable analysis of complex microscopic systems, and inability to be used for detection at the same time.

Active Publication Date: 2019-06-28
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at present, most fluorescent probes can only be used for Cu 2+ and Hg 2+ , cannot be used to detect Cu at the same time 2+ and Hg 2+ , the detection cost is high, the efficiency is low, and it is not conducive to the analysis of complex microscopic systems
[0006] Therefore, existing probes cannot be used to detect Cu at the same time 2+ and Hg 2+ The problem
The detection cost is high, the efficiency is low, and it is not conducive to the analysis of complex microscopic systems

Method used

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  • A probe and method for simultaneously detecting trace amounts of cu2+ and/or hg2+ using the probe
  • A probe and method for simultaneously detecting trace amounts of cu2+ and/or hg2+ using the probe
  • A probe and method for simultaneously detecting trace amounts of cu2+ and/or hg2+ using the probe

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Experimental program
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Embodiment 1

[0072] 1. Preparation of probes:

[0073] Using tris(2-aminoethyl)amine, rhodamine B and 4-chloro-7-nitrobenzofurazan as raw materials to synthesize the probe, the synthetic route is as follows:

[0074]

[0075] 1) Synthesis of intermediates:

[0076] in N 2 Under protection, weigh tris(2-aminoethyl)amine (4.00g, 27.36mmol) in a 100ml three-neck flask, weigh Rhodamine B (1.64g, 3.42mmol) and dissolve it in 40mL of absolute ethanol, add dropwise The three-necked flask was refluxed for 36 hours after the addition was completed, and the ethanol was distilled off under reduced pressure, extracted with dichloromethane (3×100mL), the organic phase was dried overnight with anhydrous sodium sulfate, and the solvent was evaporated to obtain a red viscous substance. Chromatographic separation, the eluent is methanol / chloroform / triethylamine with a volume ratio of 9 / 1 / 1, N 2 Under protection, take 27.36mmol of tris(2-aminoethyl)amine in a 100ml three-necked bottle, measure 20mL of...

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Abstract

The invention discloses a probe and a method for detecting micro Cu<2+> and / or Hg<2+> simultaneously by utilizing the probe. The probe is synthesized by using tris(2-aminoethyl)amine, Rhodamine B and 4-chloro-7-nitrobenzofurazan as raw materials. The method for simultaneously detecting the Cu<2+> and / or the Hg<2+> comprises the following steps: detecting the Cu<2+> and / or the Hg<2+> by using the probe as a reagent and using fluorescent spectrometry, detecting the Cu<2+> and / or the Hg<2+> by using the probe as a reagent and using ultraviolet-visible absorption spectrometry, or detecting the Hg<2+> by using the probe as a reagent and using a visual colorimetric method. The probe disclosed by the invention can be simultaneously used to detect the Cu<2+> and the Hg<2+>, detecting costs are low, the efficiency is high, and the probe is beneficial for analysis of complex microscopic systems.

Description

technical field [0001] The invention relates to a probe and a method for detecting trace ions by using the probe, in particular to a probe and the simultaneous detection of trace Cu by using the probe 2+ and / or Hg 2+- Methods. Background technique [0002] Among the trace elements necessary for the human body, copper is the third trace element after iron and zinc. Copper plays an important function in organisms. Although copper is an element that can tolerate relatively large concentrations for humans, both deficiency and excess can lead to complications for the human body. Copper ions are toxic to biological systems when levels exceed cellular requirements. Among various transition metal ions, copper ions not only cause serious environmental pollution, but also act as stimulators for various enzymatic reactions. Therefore, accurate and precise methods for quantitative determination of both high levels of copper exposure in the environment and trace copper distribution i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D491/107C09K11/06G01N21/64G01N21/33G01N21/78
CPCC07D491/107C09K11/06C09K2211/1029C09K2211/1048C09K2211/1088G01N21/33G01N21/643G01N21/78
Inventor 曾晞方浚安廖贤牟兰
Owner GUIZHOU UNIV
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