CN107782723A - A kind of preparation method of ClO 2 solution Concentration Testing test paper - Google Patents
A kind of preparation method of ClO 2 solution Concentration Testing test paper Download PDFInfo
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- CN107782723A CN107782723A CN201710897764.9A CN201710897764A CN107782723A CN 107782723 A CN107782723 A CN 107782723A CN 201710897764 A CN201710897764 A CN 201710897764A CN 107782723 A CN107782723 A CN 107782723A
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- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
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Abstract
A kind of preparation method of ClO 2 solution Concentration Testing test paper, by bromide sixteen alkyls pyridine, KI, chlorine residue screening agent, color fixing agent and sodium carbonate are added to the water to obtain maceration extract；Chromatography filter paper is impregnated into thorough rear proposition in proofing liquid, pricks and does, ClO 2 solution Concentration Testing test paper is dried to obtain through 65 75 DEG C of thermal current.Because bromide sixteen alkyls pyridine etc. produces an absworption peak as the relatively stable association particle that can form Long carbon chain in the presence of indicator with iodine and at 354nm wavelength, detection is limited to 0.007mg/L, and reaction is extremely sensitive, is easy to observation to develop the color.It is 5 200mg/L that Test paper of the present invention, which is applied to test chlorine dioxide content scope, and specific test concentrations are divided into:5,10,25,50,100,200mg/L.
Description
Technical field
The present invention relates to a kind of preparation method of Test paper, more particularly to a kind of ClO 2 solution Concentration Testing test paper
Preparation method.
Background technology
Because side effect is smaller caused by disinfection by chlorine dioxide, its security is set to by the World Health Organization (WHO)
A1 levels.The popularization and application of disinfection agent of chlorine dioxide are constantly accelerated in recent years.Conventional hospital, food service industry and drinking water generally use
Disinfectant mainly have ozone, liquid chlorine and chloramines etc..Ozone is strong oxidizer, and harmful and noxious substance is not produced after sterilization, is
Excellent disinfectant, but it is expensive, in-convenience in use.What application was most at present is liquid chlorine, but it can give birth to the organic matter in water
Into such as poisonous and hazardous halide such as chloroform, carbon tetrachloride, its potentially hazardous property turns into undisputable fact.Titanium dioxide
The Disinfection Effect of chlorine is only second to ozone, and its toxicity is safer in low residual amt, and the Disinfection Effect of chloramines is worst, can not be complete
Complete solution certainly produces the problem of organohalogen compounds.With chlorine dioxide generator technology, megacephala infestation during processing stoste, unitary dioxy
Change the maturation of chlorine solid powder and effervescent tablet production technology, make disinfection agent of chlorine dioxide increasingly extensive, this requires a kind of fast
Speed tests the supporting test paper of its concentration.
Existing chlorine dioxide test paper (the effective chlorine test paper of such as Chinese patent CN87102722 applications) is mostly using shallow lake
Powder-KI reaction system principle.But the starch as indicator includes amylose and amylopectin, its own is Portugal
Grape sugar high polymer, therefore composition and molecular weight can not be fixed, therefore starch-potassium iodide starch paper is normally only used for carrying out qualitative reality
Test is determined, it is impossible to fully meets as quantitative detection.
The content of the invention
Have the characteristics that to test quick, accurate, dioxy stably, safely, simple it is an object of the invention to provide a kind of
Change the preparation method of solutions of chlorine Concentration Testing test paper.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：
1) 0.2-0.5% bromide sixteen alkyls pyridine, 5-10% KI, 0.2-0.5% are taken by mass percentage
Chlorine residue screening agent, 0.1-0.5% color fixing agent and 0.1-0.2% sodium carbonate, surplus are water, then by bromohexadecane base
Pyridine, KI, chlorine residue screening agent, color fixing agent and sodium carbonate are added to the water to obtain maceration extract；
2) chromatography filter paper is impregnated to thorough rear proposition in 10-25 DEG C of proofing liquid, pricks and does, through 65-75 DEG C of thermal current
It is dried to obtain ClO 2 solution Concentration Testing test paper.
Described chlorine residue screening agent is amion acetic acid.
Described color fixing agent is polyvinyl alcohol.
Because bromide sixteen alkyls pyridine etc. is micro- as the relatively stable association that can form Long carbon chain in the presence of indicator with iodine
Grain simultaneously produces an absworption peak at 354nm wavelength, and detection is limited to 0.007mg/L, and reaction is extremely sensitive, is easy to observation to develop the color.
It is 5-200mg/L that Test paper of the present invention, which is applied to test chlorine dioxide content scope, and specific test concentrations are divided into:5,10,25,
50,100,200mg/L。
The size of Test paper in the present invention is 2 × 2cm, in the aluminium foil bag containing drier, is guaranteed the quality after plastic packaging
Phase is 1 year.
The Cleaning Principle of Test paper of the present invention is:
In acid condition, ClO 2 solution discharges iodine with KI generation redox reaction, and it chemically reacts
Equation is as follows
2CLO2+10I-+8H+→5I2+4H2O+2CL-
The free iodine I of generation2It is easy to excessive I-It is combined into I3 -, I3 -CS-I is formed by electrostatic attraction with CS3, the association
Thing is intermolecular further can be assembled to form CS-I in the presence of stronger hydrophobic forces and electrostatic attraction3Association particle.
Chemical equation is as follows
I3 -+CS+→CS-I3
n CS-n I3 -→(CS-I3)n
With the free state iodine increase of solution in reaction, the color shown by solution is also different.According to this principle,
The difference of chlorine dioxide concentration in solution, the iodine that same volume ClO 2 solution participates in discharging after reaction is also different, and with
The increase of iodine concentration finally caused CS-I3Association particle amount is also linearly increasing, the gradual intensification of association particle color.Thus
Draw according to the depth of reaction product color to detect the method for chlorine dioxide concentration in different solutions.
Brief description of the drawings
Fig. 1 is that the present invention according to test paper is in that color modulates basically identical standard color card with computer
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
The preparation of standard color card：
Referring to Fig. 1, the standard liquid of various concentrations is configured with chlorine dioxide powder or stoste, it is of the invention to use concentration as 5,
10,25,50,100,200mg/L ClO 2 solution, draw a drop standard liquid respectively with plastic suction pipe and be added dropwise in the present invention
Test paper center, be in that color modulates basically identical standard color card with computer according to test paper.
Embodiment 1：
1) 0.2% bromide sixteen alkyls pyridine, 7% KI, 0.2% chlorine residue screening agent is taken by mass percentage
Amion acetic acid, 0.2% color fixing agent polyvinyl alcohol and 0.2% sodium carbonate, surplus is water, then by bromohexadecane base pyrrole
Pyridine, KI, chlorine residue screening agent, color fixing agent and sodium carbonate are added to the water to obtain maceration extract；
2) chromatography filter paper is impregnated to thorough rear proposition in 10 DEG C of proofing liquid, pricks and does, dry through 65 DEG C of thermal current
To ClO 2 solution Concentration Testing test paper, by Test paper through cutting off into 2 × 2cm small pieces, mounted in the aluminium foil containing drier
In bag, the shelf-life is 1 year after plastic packaging.
Embodiment 2：
1) 0.5% bromide sixteen alkyls pyridine, 9% KI, 0.4% chlorine residue screening agent is taken by mass percentage
Amion acetic acid, 0.4% color fixing agent polyvinyl alcohol and 0.18% sodium carbonate, surplus is water, then by bromohexadecane base pyrrole
Pyridine, KI, chlorine residue screening agent, color fixing agent and sodium carbonate are added to the water to obtain maceration extract；
2) chromatography filter paper is impregnated to thorough rear proposition in 20 DEG C of proofing liquid, pricks and does, dry through 70 DEG C of thermal current
To ClO 2 solution Concentration Testing test paper, by Test paper through cutting off into 2 × 2cm small pieces, mounted in the aluminium foil containing drier
In bag, the shelf-life is 1 year after plastic packaging.
Embodiment 3：
1) 0.3% bromide sixteen alkyls pyridine, 5% KI, 0.5% chlorine residue screening agent is taken by mass percentage
Amion acetic acid, 0.1% color fixing agent polyvinyl alcohol and 0.15% sodium carbonate, surplus is water, then by bromohexadecane base pyrrole
Pyridine, KI, chlorine residue screening agent, color fixing agent and sodium carbonate are added to the water to obtain maceration extract；
2) chromatography filter paper is impregnated to thorough rear proposition in 15 DEG C of proofing liquid, pricks and does, dry through 68 DEG C of thermal current
To ClO 2 solution Concentration Testing test paper, by Test paper through cutting off into 2 × 2cm small pieces, mounted in the aluminium foil containing drier
In bag, the shelf-life is 1 year after plastic packaging.
Embodiment 4：
1) 0.4% bromide sixteen alkyls pyridine, 10% KI, 0.3% chlorine residue masking is taken by mass percentage
Agent amion acetic acid, 0.5% color fixing agent polyvinyl alcohol and 0.1% sodium carbonate, surplus is water, then by bromohexadecane base pyrrole
Pyridine, KI, chlorine residue screening agent, color fixing agent and sodium carbonate are added to the water to obtain maceration extract；
2) chromatography filter paper is impregnated to thorough rear proposition in 25 DEG C of proofing liquid, pricks and does, dry through 75 DEG C of thermal current
To ClO 2 solution Concentration Testing test paper, by Test paper through cutting off into 2 × 2cm small pieces, mounted in the aluminium foil containing drier
In bag, the shelf-life is 1 year after plastic packaging.
Application method:Take test paper a piece of, drawing drop solution to be measured with 1mL plastic suction pipes is added dropwise in test paper center, 5 seconds
Compared with standard color comparison card, you can directly read the test result of chlorine dioxide content.
Using ultraviolet spectrophotometry as testing standard, the different chlorine dioxide mass concentration results of contrast test card test
(each sample is averaged after testing 3 times respectively), refers to table 1.
1 two kinds of method of testing test chlorine dioxide mass concentration comparing results of table
The test error of Test paper of the invention is entirely capable of meeting onsite application within 5% as can be seen from the above table
Requirement.Test paper is easy to use, does not immerse solution to be measured without laboratory personnel and detection device, during use, will not be right
Testing liquid pollutes in itself.It is simultaneously few (1 drop is added dropwise) because consuming solution to be measured, therefore solution intrinsic colour will not be right
Reaction solution interferes.Test paper is in alkalescent, is had good stability, the addition of color fixing agent obstructed to a certain extent KI with
Air contact, while enhance the paper life-span.When in use, iodine is not easy to escape, color stability.The sealing of aluminium foil bag is preferable,
It can at least guarantee the quality 1 year.In summary, the invention of this test paper is food service industry, hospital and public health sterilization provide
Simple and direct, accurate, inexpensive sterilization foundation.
Claims (3)
- A kind of 1. preparation method of ClO 2 solution Concentration Testing test paper, it is characterised in that：1) take by mass percentage 0.2-0.5% bromide sixteen alkyls pyridine, 5-10% KI, 0.2-0.5% it is remaining Chlorine screening agent, 0.1-0.5% color fixing agent and 0.1-0.2% sodium carbonate, surplus are water, then by bromohexadecane base pyrrole Pyridine, KI, chlorine residue screening agent, color fixing agent and sodium carbonate are added to the water to obtain maceration extract；2) chromatography filter paper is impregnated to thorough rear proposition in 10-25 DEG C of proofing liquid, pricks and does, is dried through 65-75 DEG C of thermal current Obtain ClO 2 solution Concentration Testing test paper.
- 2. the preparation method of ClO 2 solution Concentration Testing test paper according to claim 1, it is characterised in that：Described Chlorine residue screening agent is amion acetic acid.
- 3. the preparation method of ClO 2 solution Concentration Testing test paper according to claim 1, it is characterised in that：Described Color fixing agent is polyvinyl alcohol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710897764.9A CN107782723A (en) | 2017-09-28 | 2017-09-28 | A kind of preparation method of ClO 2 solution Concentration Testing test paper |
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| CN201710897764.9A CN107782723A (en) | 2017-09-28 | 2017-09-28 | A kind of preparation method of ClO 2 solution Concentration Testing test paper |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057813A (en) * | 2019-04-25 | 2019-07-26 | 沈阳溢源生物科技有限公司 | The colour developing agent prescription and preparation method of instant capacity colorimetric method for determining available chlorine content |
| CN110927155A (en) * | 2019-12-25 | 2020-03-27 | 上海三爱思试剂有限公司 | Dibromo hydantoin disinfectant detection test paper and preparation method and application thereof |
| CN113791066A (en) * | 2021-09-16 | 2021-12-14 | 上海三爱思试剂有限公司 | Test paper for measuring chlorine dioxide content and preparation method thereof |
| WO2022110418A1 (en) * | 2020-11-30 | 2022-06-02 | 合肥美的电冰箱有限公司 | Volatilization device and storage device |
| CN117783103A (en) * | 2023-12-28 | 2024-03-29 | 无锡嘉润诊断技术有限公司 | High-sensitivity calcium qualitative detection test strip and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102722A (en) * | 1987-04-08 | 1987-12-23 | 冯光鉴 | Available chlorine indicator paper and preparation method thereof |
| CN1796985A (en) * | 2004-12-21 | 2006-07-05 | 上海三爱思试剂有限公司 | Test paper for detecting disinfector of chlorine dioxide, and preparation method |
| CN102937579A (en) * | 2012-10-31 | 2013-02-20 | 广东环凯微生物科技有限公司 | Rapid determination tablet for free chlorine residuals for water quality on the spot and preparation method thereof |
| CN103207158A (en) * | 2013-04-17 | 2013-07-17 | 上海绿帝环保科技有限公司 | Water quality detecting agent for residual chlorine |
-
2017
- 2017-09-28 CN CN201710897764.9A patent/CN107782723A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87102722A (en) * | 1987-04-08 | 1987-12-23 | 冯光鉴 | Available chlorine indicator paper and preparation method thereof |
| CN1796985A (en) * | 2004-12-21 | 2006-07-05 | 上海三爱思试剂有限公司 | Test paper for detecting disinfector of chlorine dioxide, and preparation method |
| CN102937579A (en) * | 2012-10-31 | 2013-02-20 | 广东环凯微生物科技有限公司 | Rapid determination tablet for free chlorine residuals for water quality on the spot and preparation method thereof |
| CN103207158A (en) * | 2013-04-17 | 2013-07-17 | 上海绿帝环保科技有限公司 | Water quality detecting agent for residual chlorine |
Non-Patent Citations (1)
| Title |
|---|
| 董玉平 等: "溴代(氯代)十六烷基吡啶为指示剂用显色法测定碘酸钾盐中的碘", 《河北职工医学院学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057813A (en) * | 2019-04-25 | 2019-07-26 | 沈阳溢源生物科技有限公司 | The colour developing agent prescription and preparation method of instant capacity colorimetric method for determining available chlorine content |
| CN110927155A (en) * | 2019-12-25 | 2020-03-27 | 上海三爱思试剂有限公司 | Dibromo hydantoin disinfectant detection test paper and preparation method and application thereof |
| WO2022110418A1 (en) * | 2020-11-30 | 2022-06-02 | 合肥美的电冰箱有限公司 | Volatilization device and storage device |
| CN113791066A (en) * | 2021-09-16 | 2021-12-14 | 上海三爱思试剂有限公司 | Test paper for measuring chlorine dioxide content and preparation method thereof |
| CN117783103A (en) * | 2023-12-28 | 2024-03-29 | 无锡嘉润诊断技术有限公司 | High-sensitivity calcium qualitative detection test strip and manufacturing method thereof |
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Application publication date: 20180309 |