CN101571490B - Method for preparing PH test paper standard colorimetric plate and colorimetric plate produced by same - Google Patents
Method for preparing PH test paper standard colorimetric plate and colorimetric plate produced by same Download PDFInfo
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- CN101571490B CN101571490B CN2008100968074A CN200810096807A CN101571490B CN 101571490 B CN101571490 B CN 101571490B CN 2008100968074 A CN2008100968074 A CN 2008100968074A CN 200810096807 A CN200810096807 A CN 200810096807A CN 101571490 B CN101571490 B CN 101571490B
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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
The present invention is specifically related to a kind of method for making of PH test paper standard color board and the color board of making of this method.
Background technology
PH is the abbreviation (Pondus=pressure, hydrogenii and hydrogenium=hydrogen) of Latin " Pondus hydrogenii " speech, is used for measuring hydrionic activity in the material.This activity is directly connected to acidity, the neutrality and alkaline of aqueous solution.
The PH test paper be applied to test pH value, the PH test paper has multiple, and wide spectrum and accurate branch are arranged.
Methyl red, bromcresol green, these three kinds of indicator of thymol blue are arranged on the PH test paper; Methyl red, bromcresol green, thymol blue and phenolphthalein are the same, all variable colors according to certain rules in the solution of different PH.--7.5 (indigo plants) that 6.2 (Huangs), the color change interval of bromcresol green are PH3.6 (Huangs)--5.4 (green), the color change interval of thymol blue are PH6.7 (Huangs)--that the color change interval of methyl red is PH4.2 (red).Add the mixed indicator dipping neutral white test paper that quantitative bromcresol green adds quantitative thymol blue with quantitative methyl red, the PH test paper that makes after drying can be used for measuring the pH value of solution.
The PH test paper can reflect that pH value is 4.5～9.0 range of variation.
Stick on the test paper of several pH values and to make color board on the paperboard, also exist weak point to be: the pH value degree of accuracy scope on the color board is few, and error is big, and special pH value between two aberration can't directly read.
Summary of the invention
The objective of the invention is to overcome the shortcoming that said structure exists, and provide a kind of pH value degree of accuracy scope big and the method for making of the PH test paper standard color board that error is few and the color board that this method is made
The present invention realizes with the following methods: its method for making is:
Step 1: the standard solution of pressing the various pH values of the corresponding preparation of measurement range of PH test paper.
Step 2: the pH value of surveying each standard solution with the PH test paper.
Step 3: take the test paper of each pH value under soft daylight rapidly with camera, same pH value test paper is taken 5.
Step 4: the photograph of each pH value is handled at the computerized image process software, utilized " Gradient Tool " function in the image processing software, make all colours mean allocation form the picture of a continuous even gradual change pH value to each interval.
Step 5: 5 sheet photos of shooting are to be used for the average that step 4 is got the color of PH test paper color development uniform parts, with average is the Standard Colors of this pH value this value in color board, each numerical value of mark below the pH value picture, the also decimal of balanced mark ten equal portions between each numerical value.
Step 6: output print.
The color board of using the method for making of above-mentioned PH test paper standard color board and making, comprise sheet material and the interval that is marked with the Standard Colors of pH value at sheet material, also indicate the gradual transition color of two kinds of Standard Colors between its described Standard Colors interval, each pH value of mark below pH value Standard Colors picture, balanced mark decimal pH value between two pH values.
The decimal pH value that marks between described two pH values is ten equal portions.
The invention has the beneficial effects as follows: also indicate the gradual transition color of two kinds of Standard Colors between the Standard Colors interval, pH value degree of accuracy scope is big, and error is few, and special pH value between two aberration can directly read.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Specific embodiment
Below in conjunction with accompanying drawing the present invention is made concrete further instruction.
As shown in Figure 1, its method for making is:
Step 1: the standard solution of pressing the various pH values of the corresponding preparation of measurement range of PH test paper.
Step 2: the pH value of surveying each standard solution with the PH test paper.
Step 3: take the test paper of each pH value under soft daylight rapidly with camera, same pH value test paper is taken 5.
Step 4: the photograph of each pH value is handled at the computerized image process software, utilized " Gradient Tool " function in the image processing software, make all colours mean allocation form the picture of a continuous even gradual change pH value to each interval.
Step 5: 5 sheet photos of shooting are to be used for the average that step 4 is got the color of PH test paper color development uniform parts, with average is the Standard Colors of this pH value this value in color board, each numerical value of mark below the pH value picture, the also decimal of balanced mark ten equal portions between each numerical value.
Step 6: output print.
As shown in Figure 1: show: 1-14PH test paper continuous precision standard colorimetric plate, the color board of using the method for making of above-mentioned PH test paper standard color board and making, comprise sheet material and the interval that is marked with the Standard Colors of pH value at sheet material, also indicate the gradual transition color of two kinds of Standard Colors between its described Standard Colors interval, each pH value of mark below pH value Standard Colors picture, balanced mark decimal pH value between two pH values.
The decimal pH value that marks between described two pH values is ten equal portions.
Claims (6)
1.PH the method for making of test paper standard color board, its method for making is:
Step 1: the standard solution of pressing the various pH values of the corresponding preparation of measurement range of PH test paper;
Step 2: the pH value of surveying each standard solution with the PH test paper;
Step 3: the test paper that takes each pH value with camera;
Step 4: the photograph of each pH value is handled at the computerized image process software, utilized " Gradient Tool " function in the image processing software, make all colours mean allocation form the picture of a continuous even gradual change pH value to each interval;
Step 5: each numerical value of mark below the pH value picture;
Step 6: output print.
2. the method for making of PH test paper standard color board according to claim 1 is characterized in that: step 3 is to take 5 same-pH value test paper under soft daylight rapidly.
3. the method for making of PH test paper standard color board according to claim 2, it is characterized in that: 5 sheet photos of described shooting are to be used for the average that step 4 is got the color of PH test paper color development uniform parts, are the Standard Colors of this pH value this value in color board with average.
4. the method for making of PH test paper standard color board according to claim 1 is characterized in that: when described step 5 marks each numerical value below the pH value picture, and the decimal of balanced mark ten equal portions between each numerical value also.
5. the color board of using the method for making of above-mentioned PH test paper standard color board and making, comprise sheet material and the interval that is marked with the Standard Colors of pH value at sheet material, it is characterized in that: the gradual transition color that also indicates two kinds of Standard Colors between the described Standard Colors interval, each pH value of mark below pH value Standard Colors picture, balanced mark decimal pH value between two pH values.
6. PH test paper standard color board according to claim 5 is characterized in that: the decimal pH value that marks between described two pH values is ten equal portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100968074A CN101571490B (en) | 2008-04-30 | 2008-04-30 | Method for preparing PH test paper standard colorimetric plate and colorimetric plate produced by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100968074A CN101571490B (en) | 2008-04-30 | 2008-04-30 | Method for preparing PH test paper standard colorimetric plate and colorimetric plate produced by same |
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| Publication Number | Publication Date |
|---|---|
| CN101571490A CN101571490A (en) | 2009-11-04 |
| CN101571490B true CN101571490B (en) | 2010-12-29 |
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| CN2008100968074A Expired - Fee Related CN101571490B (en) | 2008-04-30 | 2008-04-30 | Method for preparing PH test paper standard colorimetric plate and colorimetric plate produced by same |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539423B (en) * | 2011-12-16 | 2014-09-10 | 辽宁师范大学 | High-acidity precision test paper |
| CN103983643A (en) * | 2014-06-03 | 2014-08-13 | 河南工业大学 | Kit for rapidly detecting calcium peroxide in wheat flour and detecting method of kit |
| CN105148422B (en) * | 2015-07-23 | 2018-02-27 | 山西新华化工有限责任公司 | The preparation method of canister mouth neck ash discharge standardized level difference color board |
| CN114002217B (en) * | 2021-11-02 | 2024-05-14 | 苏州国科医工科技发展(集团)有限公司 | Method for reading PH value through PH test paper image |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003254827A (en) * | 2001-12-28 | 2003-09-10 | Shibata Kagaku Kk | Colorimetric plate for discriminating concentration and concentration measuring instrument equipped with it |
| CN200965519Y (en) * | 2006-12-21 | 2007-10-24 | 何林 | Visual color comparison card |
| CN101082566A (en) * | 2007-07-11 | 2007-12-05 | 李楠 | Soil organic matter colour comparison card and manufacturing method thereof |
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2008
- 2008-04-30 CN CN2008100968074A patent/CN101571490B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003254827A (en) * | 2001-12-28 | 2003-09-10 | Shibata Kagaku Kk | Colorimetric plate for discriminating concentration and concentration measuring instrument equipped with it |
| CN200965519Y (en) * | 2006-12-21 | 2007-10-24 | 何林 | Visual color comparison card |
| CN101082566A (en) * | 2007-07-11 | 2007-12-05 | 李楠 | Soil organic matter colour comparison card and manufacturing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 吉林省地方病第二防治研究所.碘盐含碘化钾量快速测定方法及其标准比色板的制作方法.《地方病通讯》.1981,(1),72-74. * |
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| CN101571490A (en) | 2009-11-04 |
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