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

Preparation method and rapid detection device of nitrite detection electrode and chemical oxygen consumption detection electrode

A technology of chemical oxygen demand and nitrite, applied in the direction of material electrochemical variables, etc., can solve the problems of high detection cost, insufficient accuracy, and difficulty, and achieve high detection accuracy, reduce recombination rate, and reduce mass transfer resistance Effect

Active Publication Date: 2020-05-08
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims at the problem that the detection method of nitrate and chemical oxygen consumption in the prior art is either not accurate enough, or the detection cost is high and it is difficult to realize rapid and on-site detection, and provides a nitrite detection electrode and chemical oxygen consumption Preparation method and rapid detection device of oxygen amount detection electrode

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
  • Preparation method and rapid detection device of nitrite detection electrode and chemical oxygen consumption detection electrode
  • Preparation method and rapid detection device of nitrite detection electrode and chemical oxygen consumption detection electrode
  • Preparation method and rapid detection device of nitrite detection electrode and chemical oxygen consumption detection electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation method of a kind of nitrite detection electrode of the present invention comprises the steps: first deposit Fe by hydrothermal method on FTO glass 2 o 3 The nanowires are further modified with gold nanoparticles by a solution method to obtain the nitrite detection electrode 3, and the particle size of the gold nanoparticles on the surface of the nitrite detection electrode 3 is 3nm.

[0032] A preparation method of a chemical oxygen consumption detection electrode of the present invention comprises the following steps: first, anatase phase TiO with a particle size of 5 nm is synthesized and prepared 2 Nanoparticles; Then select 0.1g of the anatase phase TiO 2 Nanoparticles were dispersed into a water-alcohol solution with a ratio of 4:1; then, after adding 150 μL of membrane solution, ultrasonic pump was used for 3 minutes to obtain an emulsion, which was passed through a puller on FTO glass at 2 cm / The thin film was obtained at a pulling speed of min...

Embodiment 2

[0036] The preparation method of a kind of nitrite detection electrode of the present invention comprises the steps: first deposit Fe by hydrothermal method on FTO glass 2 o 3 The nanowires are further modified with gold nanoparticles by a solution method to obtain the nitrite detection electrode 3, and the particle size of the gold nanoparticles on the surface of the nitrite detection electrode 3 is 4nm.

[0037] A preparation method of a chemical oxygen consumption detection electrode of the present invention comprises the following steps: first, anatase phase TiO with a particle size of 7 nm is synthesized and prepared 2 Nanoparticles; Then select 0.1g of the anatase phase TiO 2 Nanoparticles were dispersed into a water-alcohol solution with a ratio of 4:1; then, after adding 150 μL of membrane solution, ultrasonic pump was used for 3 minutes to obtain an emulsion, which was passed through a puller on FTO glass at 2 cm / The thin film was obtained at a pulling speed of min...

Embodiment 3

[0041] The preparation method of a kind of nitrite detection electrode of the present invention comprises the steps: first deposit Fe by hydrothermal method on FTO glass 2 o 3 The nanowires are further modified with gold nanoparticles by a solution method to obtain the nitrite detection electrode 3, and the diameter of the gold nanoparticles on the surface of the nitrite detection electrode 3 is 5nm.

[0042] A preparation method of a chemical oxygen consumption detection electrode of the present invention comprises the following steps: first, anatase phase TiO with a particle size of 10 nm is synthesized and prepared 2 Nanoparticles; Then select 0.1g of the anatase phase TiO 2 Nanoparticles were dispersed into a water-alcohol solution with a ratio of 4:1; then, after adding 150 μL of membrane solution, ultrasonic pump was used for 3 minutes to obtain an emulsion, which was passed through a puller on FTO glass at 2 cm / The thin film was obtained at a pulling speed of min; fi...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of detection equipment and discloses preparation methods and rapid detection device of a nitrite detection electrode and a chemical oxygen demand detection electrode. The nitrite detection electrode, the chemical oxygen demand detection electrode, a reference electrode, a counter electrode, a light source and a stirring paddle are arranged in a sample pool; the nitrite detection electrode and the chemical oxygen demand detection electrode are connected with an electrochemical workstation; the reference electrode, the counter electrode and the electrochemicalworkstation are connected; the light source is connected in series with a direct current power supply; the stirring paddle is driven to operate by a micro motor; the micro motor is connected in serieswith the direct current power supply; the electrochemical workstation is connected with a USB (Universal Serial Bus) driving module in a portable computer; the portable computer further comprises a nitrite analysis module, a chemical oxygen demand analysis module and an alarm system. The device disclosed by the invention is rapid in detection result and high in detection accuracy, can detect nitrite detection content and a chemical oxygen demand of one piece of samples, and can be widely applied to rapid field detection in the food field and the environment field.

Description

technical field [0001] The invention relates to the technical field of detection equipment, in particular to a preparation method and a rapid detection device of a nitrite detection electrode and a chemical oxygen consumption detection electrode. Background technique [0002] Nitrite widely exists in the natural environment and food, and nitrous acid in food mainly exists in dyes and additives, cured meat products, pickles and spoiled vegetables. Long-term consumption of large amounts of nitrite not only has adverse effects on human health, but can even cause various diseases, such as baby distortion, cyanosis, growth defects, etc. This is mainly because nitrite can oxidize the normal oxygen-carrying low iron hemoglobin in the blood into methemoglobin, thus losing the oxygen-carrying capacity and causing tissue hypoxia, so nitrite is a highly toxic substance. In addition, nitrite is also a carcinogen. According to research, the probability of suffering from esophageal cance...

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): G01N27/27
CPCG01N27/27
Inventor 康升红蔡伟平汪国忠周宏建张海民张云霞
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com