Unlock instant, AI-driven research and patent intelligence for your innovation.

A Schiff base sensor molecule and its synthesis and application of fluorescence colorimetric detection of cn- in water

A sensor and water detection technology, applied in the field of anion detection, can solve the problems of long reaction time, difficulty in synthesis, and restrictions on the popularization and use of sensor molecules, and achieve high sensitivity

Inactive Publication Date: 2016-05-25
NORTHWEST NORMAL UNIVERSITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But most reactive CN - Sensors are often complex in structure and difficult to synthesize. The recognition process of some reactive sensor molecules requires a long reaction time. These factors restrict the popularization and use of these sensor molecules.

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
  • A Schiff base sensor molecule and its synthesis and application of fluorescence colorimetric detection of cn- in water
  • A Schiff base sensor molecule and its synthesis and application of fluorescence colorimetric detection of cn- in water
  • A Schiff base sensor molecule and its synthesis and application of fluorescence colorimetric detection of cn- in water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The synthesis of the sensor molecule of the present invention and the detection of CN in water will be carried out through specific examples below. - application is further explained.

[0043] 1. Sensor molecules Sz Synthesis: Put 6mmol of 2-aminobenzothiazole and 6mmol of 2-hydroxy-1-naphthaldehyde in a 100mL round bottom flask, add 20mL of ethanol, 1mL of glacial acetic acid, and heat to reflux for 6h on an oil bath at 80°C. After the reaction was stopped, it was cooled to room temperature, and a crystalline substance precipitated out of the solution within 30 minutes; it was vacuum filtered and dried to obtain a yellow solid substance. The yield is 80% to 85%. The measured melting point is 216-217°C. NMR titration, high-resolution mass spectrometry, and infrared characterization data are the same as before.

[0044] 2. Load sensor molecules Sz CN - Preparation of test paper: Soak the filter paper with dilute hydrochloric acid, then wash it with distilled water ...

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention designs and synthesizes a Schiff base sensor molecule, which belongs to the technical field of anion detection. The sensor molecule can identify CN- in water with highly selective colorimetric fluorescence dual channels, and has a short response time, and other anions do not interfere with the detection process. It has been determined that the detection limit of the sensor molecule to CN- in water with the naked eye is 2.0×10-6 mol / L, and the detection limit of the fluorescence spectrum is 3.42×10-8 mol / L, which is far lower than the CN in normal drinking water stipulated by the World Health Organization. - Content standard (<1.9μM).

Description

technical field [0001] The invention belongs to the technical field of anion detection, and relates to a Schiff base sensor molecule and its synthesis; the invention also relates to the use of the Schiff base sensor molecule in fluorescent and colorimetric detection of CN in water. - Applications. Background technique [0002] Cyanide ion (CN - ) is a highly toxic substance, CN - It is very easily absorbed by the human body and can enter the human body through the mouth, respiratory tract or skin. 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 life sciences and environmental monitoring. ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C07D277/82G01N21/78G01N21/33G01N21/64
CPCC07D277/82G01N21/643G01N21/78G01N2021/7769
Inventor 林奇蔡毅李乔张有明魏太保
Owner NORTHWEST NORMAL UNIVERSITY