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Multichannel molecular probe for detecting Hg<2+> and preparation method thereof

A molecular probe and multi-channel technology, applied in the field of multi-channel molecular probes for detecting Hg2+ and their preparation, can solve the problems of high detection cost, low sensitivity, limiting the promotion and large-scale application of mercury ion detection, etc. realistic effect

Active Publication Date: 2014-08-27
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main means of traditional detection of mercury ions are: atomic absorption, cold vapor atomic fluorescence spectrometry and gas chromatography, etc., but these methods have low sensitivity, complex and cumbersome sample processing, high equipment requirements, and high detection costs , thus severely limiting the promotion and large-scale application of mercury ion detection

Method used

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  • Multichannel molecular probe for detecting Hg&lt;2+&gt; and preparation method thereof
  • Multichannel molecular probe for detecting Hg&lt;2+&gt; and preparation method thereof
  • Multichannel molecular probe for detecting Hg&lt;2+&gt; and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Take a 250ml three-necked beaker, set up a device to evacuate, pass nitrogen, and repeat three times. Ferrocene (3.7272 g, 20 mmol) was added, vacuum was applied, and nitrogen gas was passed twice. After adding 150ml THF, put the three-necked flask on the magnetic stirrer with a nitrogen rubber hose, and vacuumize the gas in the rubber tube with nitrogen under the condition of closing the inlet valve on the three-necked flask, repeating 2 times. Then react in an ice bath for a few minutes. Clean and dry the anhydrous syringes with ethanol, and coat the stoppers with vacuum grease. Insert it into a three-necked flask to inhale a certain amount of nitrogen, pull out the nitrogen and repeat it 3 times. Then inhale a certain amount of nitrogen for backup. Insert a nitrogen-filled pipette with a needle into the n-butyllithium bottle (note that the needle should be on the liquid surface). Then insert the syringe needle into the n-butyllithium bottle, push the nitrogen in ...

Embodiment 2

[0058] Take a 250ml three-necked beaker, set up a device to evacuate, pass nitrogen, and repeat three times. Ferrocene (3.7272 g, 20 mmol) was added, vacuum was applied, and nitrogen gas was passed twice. After adding 150ml THF, put the three-necked flask on the magnetic stirrer with a nitrogen rubber hose, and vacuumize the gas in the rubber tube with nitrogen under the condition of closing the inlet valve on the three-necked flask, repeating 2 times. Then react in an ice bath for a few minutes. Clean and dry the anhydrous syringes with ethanol, and coat the stoppers with vacuum grease. Insert it into a three-necked flask to inhale a certain amount of nitrogen, pull out the nitrogen and repeat it 3 times. Then inhale a certain amount of nitrogen for backup. Insert a nitrogen-filled pipette with a needle into the n-butyllithium bottle (note that the needle should be on the liquid surface). Then insert the needle of the syringe into the bottle of n-butyllithium, push the ni...

Embodiment 3

[0063] Take a 250ml three-necked beaker, set up a device to evacuate, pass nitrogen, and repeat three times. Ferrocene (3.7272 g, 20 mmol) was added, vacuum was applied, and nitrogen gas was passed twice. After adding 150ml THF, put the three-necked flask on the magnetic stirrer with a nitrogen rubber hose, and vacuumize the gas in the rubber tube with nitrogen under the condition of closing the inlet valve on the three-necked flask, repeating 2 times. Then react in an ice bath for a few minutes. Clean and dry the anhydrous syringes with ethanol, and coat the stoppers with vacuum grease. Insert it into a three-necked flask to inhale a certain amount of nitrogen, pull out the nitrogen and repeat it 3 times. Then inhale a certain amount of nitrogen for backup. Insert a nitrogen-filled pipette with a needle into the n-butyllithium bottle (note that the needle should be on the liquid surface). Then insert the syringe needle into the n-butyllithium bottle, push the nitrogen in ...

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Abstract

The invention discloses a multichannel molecular probe for detecting Hg<2+>. Se is used as a binding site, ferrocenyl and anthryl are used as signal groups, and the multichannel molecular probe has a structure as shown in the structural formula I in the specification. The invention further discloses a preparation method and application of the multichannel molecular probe. The multichannel molecular probe disclosed by the invention can adopt means such as color-developing and ultraviolet spectrums as well as fluorescence spectrum, and the like to detect Hg<2+>, and provides a detecting tool with high selectivity and high sensitivity for Hg<2+> detection, so that great guiding significance is provided for developing a novel heavy metal ion probe.

Description

technical field [0001] The invention belongs to the technical field of analysis and detection, and relates to a method for detecting Hg 2+ The multi-channel molecular probe and its preparation method. Background technique [0002] Sensitive detection of heavy metals and transition metals, such as mercury, is currently the most important task for environmental or biological applications. Mercury is one of the most toxic elements in the world, even in very low concentrations, it will bring great toxicity to microorganisms and the environment. Researches on inorganic mercury have shown that 5 μg / L of mercury in medium substances will cause great harm. Once mercury flows into the marine environment, microorganisms will convert it into methylmercury. This form of mercury is much more harmful to aquatic organisms and birds than inorganic mercury, and eventually reaches the top of the food chain and accumulates in higher organisms. In the body, especially in some large edible fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F17/02C09K11/06G01N21/78G01N21/33G01N21/64
Inventor 景苏李雨瞿建刘玉庆
Owner NANJING TECH UNIV
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