Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Making method of reaction film and ammonia nitrogen detection device and method based on reaction film

A manufacturing method and detection device technology, applied in the direction of color/spectral characteristic measurement, etc., can solve problems such as signal drift, difficulty in giving accurate judgment, complicated operation, etc., and achieve the effects of high detection accuracy, simple structure, and simple preparation process

Active Publication Date: 2020-02-28
SHANTOU UNIV
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PH sensor and ammonia nitrogen sensor are commonly used measurement methods, but they are easily affected by the surrounding environment. The signal returned by the sensor is easily mixed with other signal interference, resulting in signal drift. The common one is temperature drift, that is, the change of uncertain signal is It is the result of the change of temperature or the change of ammonia nitrogen concentration. At the same time, the traditional method of using test paper to detect ammonia nitrogen is based on the change of test paper color and compared with the standard color chart to determine the concentration of ammonium ions. Insensitive to small changes, it is difficult to give an accurate judgment

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
  • Making method of reaction film and ammonia nitrogen detection device and method based on reaction film
  • Making method of reaction film and ammonia nitrogen detection device and method based on reaction film
  • Making method of reaction film and ammonia nitrogen detection device and method based on reaction film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The concept, specific structure and technical effects of the present disclosure will be clearly and completely described below in conjunction with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the present disclosure. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0025] The preparation method of reaction membrane provided by the invention is:

[0026] (1) Configure the polyvinylidene chloride-bromothymol blue solution used for coating: the solute is polyvinylidene chloride and bromothymol blue, the organic solvent is N-methylpyrrolidone, take 0.1g polyvinylidene chloride and 0.1 1g bromothymol blue is put into the N-methylpyrrolidone solvent of 5ml, then is placed on the magnetic control stirrer and works for 6 hours, after fully stirring, obtains uniform solution;

[0027] (2) Coating on the optical fiber: ...

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
angleaaaaaaaaaa
lengthaaaaaaaaaa
wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of ammonia nitrogen detection, in particular to a making method of a reaction film and an ammonia nitrogen detection device and method based on the reaction film. The making method includes: preparing a polyvinylidene chloride-bromothymol blue solution for coating, and coating optical fiber to form the reaction film on the surface of the covering of theinclined fiber Bragg grating. The ammonia nitrogen detection device comprises a light source, signal-mode optical fiber, an inclined fiber Bragg grating, a sample pool and a spectrograph, and the reaction film is plated on a covering of the inclined fiber Bragg grating. Light is adopted as a signal carrier, so that the ammonia nitrogen detection method has the advantage of high speed. The reaction film is simple in preparation process and low in cost. The ammonia nitrogen detection device is simple in structure, needless of a complex sample pool reaction system and high in detection accuracy.

Description

technical field [0001] The invention relates to the technical field of ammonia nitrogen detection, in particular to a production method of a reaction membrane and an ammonia nitrogen detection device and method based on the reaction membrane. Background technique [0002] Sewage treatment is a difficult problem that our country is currently facing. With the increasing population, the discharge of domestic sewage and industrial development sewage has caused serious pollution to water resources. One of the common components in sewage is ammonia nitrogen. Accurate and rapid detection of ammonia nitrogen concentration in aqueous solution has become a necessary requirement for sewage treatment. [0003] Traditional measurement methods include pH sensors, ammonia nitrogen sensors and test paper detection methods. PH sensor and ammonia nitrogen sensor are commonly used measurement methods, but they are easily affected by the surrounding environment. The signal returned by the sens...

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 Applications(China)
IPC IPC(8): G01N21/25
CPCG01N21/25
Inventor 陈晓涌马朋雷曲航宋海红
Owner SHANTOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products