Method for measuring pH value of aqueous solution
An aqueous solution and solution technology, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by making materials undergo chemical reactions. Accurate, improve accuracy and linear relationship, effective screening effect
Active Publication Date: 2021-07-13
BEIJING NORMAL UNIVERSITY
3 Cites 0 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Abstract
The invention relates to a method for measuring the pH value of an aqueous solution based on gold nanorods, and belongs to the technical field of nano materials. The method comprises the following steps: (A) adding a gold nanorod solution and an etching solution into a to-be-detected solution, and then continuously monitoring RGB color space values of the solution corresponding to red, green and blue color component values until the etching reaction is finished; (B) converting the GRB color space value into a hue value; (C) mapping the tone value to the etching reaction time in the polar coordinate system to obtain a reverse value of the tone within 400 seconds after the etching is started and a maximum forward rotation value in the whole etching process; and (D) when the reverse rotation value is less than 38 degrees, substituting the maximum forward rotation value of the hue value into the correction curve to realize the measurement of the pH value. According to the method provided by the invention, the quality of the gold nanorod is discriminated through the reversal value in the measurement process, and unqualified colorimetric probes are removed, so that the measurement precision and accuracy are remarkably improved.
Application Domain
Material analysis by observing effect on chemical indicator
Technology Topic
Color toneEtching +8
Image
Examples
- Experimental program(5)
- Effect test(1)
Example Embodiment
Example Embodiment
Example Embodiment
PUM
Property | Measurement | Unit |
Length | 40.0 | nm |
Diameter | 10.0 | nm |
Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Palm oil-base offset printing ink containing no mineral oil and preparation method thereof
Owner:SHANGHAI PEONY PRINTING INK
Application of FCRL2 autoantibody detection reagent in preparation of lung cancer screening kit
ActiveCN110596391Aeffective screeninglow patient harm
Owner:WEST CHINA HOSPITAL SICHUAN UNIV
Carbon dioxide-slickwater intermittent mixed-fracturing design method
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Application of HECTD3 autoantibody detection reagent in preparing lung cancer screening kit
ActiveCN110412299Aeffective screeninglow patient harm
Owner:THE WEST CHINA SECOND UNIV HOSPITAL OF SICHUAN
Application of SYT12 autoantibody detection reagent in preparation of lung cancer screening kit
PendingCN110456085Aeffective screeninglow patient harm
Owner:WEST CHINA HOSPITAL SICHUAN UNIV
Method for reinforcing nickel-base alloy layer on aluminum alloy surface
Owner:GUILIN UNIV OF ELECTRONIC TECH
Cerium-based solid solution catalyst and preparation method
Owner:ZHEJIANG UNIV OF TECH
Application of APOO autoantibody detection reagent in preparation of lung cancer screening kit
Owner:WEST CHINA HOSPITAL SICHUAN UNIV
Application of Arabidopsis gene MYB73 on the aspect of plant sclerotinia sclerotiorum proof disease
Owner:HEBEI AGRICULTURAL UNIV.
Classification and recommendation of technical efficacy words
- effective screening
Application of APOO autoantibody detection reagent in preparation of lung cancer screening kit
Owner:WEST CHINA HOSPITAL SICHUAN UNIV
Application of HECTD3 autoantibody detection reagent in preparing lung cancer screening kit
ActiveCN110412299Aeffective screeninglow patient harm
Owner:THE WEST CHINA SECOND UNIV HOSPITAL OF SICHUAN
Application of SYT12 autoantibody detection reagent in preparation of lung cancer screening kit
PendingCN110456085Aeffective screeninglow patient harm
Owner:WEST CHINA HOSPITAL SICHUAN UNIV
Application of FCRL2 autoantibody detection reagent in preparation of lung cancer screening kit
ActiveCN110596391Aeffective screeninglow patient harm
Owner:WEST CHINA HOSPITAL SICHUAN UNIV