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

Method for preparing PH test paper standard colorimetric plate and colorimetric plate produced by same

A technology of a standard color guide and a production method, which is applied to the production of a standard color guide of PH test paper and the field of the produced color guide, and can solve problems such as a small range of accuracy of the pH value, large errors, and the inability to directly read the pH value, etc. problem, to achieve the effect of a large range of PH value accuracy and less error

Inactive Publication Date: 2009-11-04
罗艺斌
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Paste the test papers of several PH values ​​on the cardboard to make the color guide, but there are still shortcomings: the accuracy range of the pH value on the color guide is small, and the error is large, especially the pH value between the two color differences cannot be adjusted. direct read

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
  • Method for preparing PH test paper standard colorimetric plate and colorimetric plate produced by same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] specific example

[0020] The present invention will be specifically and further described below in conjunction with the accompanying drawings.

[0021] Such as figure 1 As shown, its production method is:

[0022] Step 1: Prepare standard solutions of various pH values ​​according to the measurement range of the pH test paper.

[0023] Step 2: Measure the pH value of each standard solution with pH test paper.

[0024] Step 3: Quickly take pictures of each pH test paper with a camera under soft sunlight, and take 5 pictures of the same pH test paper.

[0025] Step 4: Process the photos of each pH value in the computer image processing software, and use the "gradient tool" function in the image processing software to distribute all colors evenly to each interval to form a continuous uniform gradient pH value picture.

[0026] Step 5: The 5 photos taken are the average value of the color of the evenly colored part of the PH test paper used in step 4, and the average v...

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

No PUM Login to View More

Abstract

The invention in particular relates to a method for preparing a PH test paper standard colorimetric plate and a colorimetric plate produced by the method. The colorimetric plate comprises a plate and PH value standard color intervals marked on the plate, wherein two gradient transition colors of two standard colors are marked among the standard color intervals, PH values are marked under PH standard color imagines, and decimal PH values are evenly marked between every two PH values. The invention has the advantages that the PH value has large accuracy range and little error, especially a PH value between two color differences can be directly read, therefore, the problems that the previous colorimetric plate has small accuracy range and large error, and especially a PH value between two color differences cannot be directly read.

Description

technical field [0001] The invention specifically relates to a method for making a pH test paper standard color guide and a color guide prepared by the method. Background technique [0002] PH is an abbreviation of the Latin word "Pondus hydrogenii" (Pondus = pressure, hydrogenii and hydrogenium = hydrogen) and is used to measure the activity of hydrogen ions in a substance. This activity is directly related to the acidity, neutrality and alkalinity of the aqueous solution. [0003] PH test paper is used to test the PH value. There are many kinds of PH test paper, which can be divided into broad-spectrum and precise. [0004] There are three indicators of methyl red, bromocresol green, and thymol blue on the PH test paper; methyl red, bromocresol green, thymol blue, and phenolphthalein are the same, and they will all be pressed in different pH solutions. Discoloration with certain regularity. The discoloration range of methyl red is PH4.2 (red) - 6.2 (yellow), the discolo...

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
IPC IPC(8): G01N21/80
Inventor 罗艺斌
Owner 罗艺斌