CN<-> fluorescent colorimetric detection sensor molecule, and synthesis method and application thereof

A sensor and molecular technology, applied in the detection of CN- sensor molecules, the synthesis and application of sensor molecules, the field of fluorescent colorimetric detection of CN-reactive sensor molecules, can solve the complex structure of sensors, difficult synthesis, long reaction time, etc. question

Active Publication Date: 2015-09-16
内蒙古蓝博动物疾病检验检疫有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

But most reactive CN - Sensors are often complex in structure and difficult to synthesize. The recognition process of some reac

Method used

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  • CN&lt;-&gt; fluorescent colorimetric detection sensor molecule, and synthesis method and application thereof
  • CN&lt;-&gt; fluorescent colorimetric detection sensor molecule, and synthesis method and application thereof
  • CN&lt;-&gt; fluorescent colorimetric detection sensor molecule, and synthesis method and application thereof

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Embodiment Construction

[0046] The structure and synthesis of the sensor molecule of the present invention, as well as the CN - application is further explained.

[0047] 1. Synthesis of the sensor molecule Wq

[0048] Put 5mmol N-1-naphthylethylenediamine dihydrochloride and 6mmol 2-hydroxy-1-naphthaldehyde in a 100mL round bottom flask, add 30mL ethanol, 0.5mL glacial acetic acid, and heat on an oil bath to Reflux reaction at 85°C for 12 hours; after the reaction stops, cool to room temperature and place in the refrigerator, take it out for about half an hour, and crystalline substances precipitate out of the solution; after vacuum filtration, wash with distilled water first, then with absolute ethanol, and finally dry to obtain a red color The solid substance is the sensor molecule Wq (0.6734g, yield 52%). Its synthetic formula is as follows:

[0049]

[0050] Wq: m.p: >300°C; 1 H NMR (DMSO- d 6 , 400 MHz) δ :10.50 (s, 1H, OH), 8.50(s, 1H, CH), 4.00(s, 1H, NH),3.50(d, 2H, CH 2 ) ,3.00(d,...

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Abstract

The invention discloses a CN<-> sensor molecule. Identification of CN<-> by the sensor molecule is realized through CN<-> addition, deprotonation, and hydrolysis under the action water to form a ketone structure, and the above reaction has the advantages of good selectivity on CN<->, high identification sensitivity, short reaction time, and no interference of other anions to the detection process. Titration experiments show that the naked eye detection limit of the above sensor to CN<-> in water is 2.4*<-6>mol/L, the fluorescent spectrum detection limit is 8.00*10<-7>mol/L, and the detection limits are far lower than the content standard (below 1.9[mu]M) of CN<-> in normal drinking water, prescribed by World Health Organization. Compared with traditional CN<-> sensor molecules, the CN<-> sensor molecule disclosed in the invention has the characteristics of cheap and easily available raw material, simple and easy synthesis process, and low synthesis cost, so the sensor molecule in the invention has potential application values.

Description

technical field [0001] The invention relates to a method for detecting CN - The sensor molecule, especially relates to a kind of fluorescence colorimetric detection CN - The reactive sensor molecule of the invention belongs to the technical field of chemical synthesis and the technical field of ion detection. The present invention also relates to the fluorescence colorimetric detection CN - Synthesis and application of sensor molecules. Background technique [0002] It is well known that the cyanide ion (CN - ) is a highly toxic substance, a small amount of CN - It can cause acute poisoning or even death. However, cyanide is also an important chemical raw material, which is widely used in chemical processes such as metallurgy and electroplating. In addition, some plants also contain cyanide. Improper use of cyanide in industrial production or improper diet in life may cause cyanide poisoning. Therefore, CN - The detection has important applications in the fields of l...

Claims

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Application Information

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IPC IPC(8): C07C251/24C07C249/02G01N21/78G01N21/64
Inventor 魏太保王芹芹李辉王晓婷张有明
Owner 内蒙古蓝博动物疾病检验检疫有限公司
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