CN106770252A - A kind of Remanent Chloride In Drinking Water detection reagent and its application - Google Patents
A kind of Remanent Chloride In Drinking Water detection reagent and its application Download PDFInfo
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- CN106770252A CN106770252A CN201611270282.2A CN201611270282A CN106770252A CN 106770252 A CN106770252 A CN 106770252A CN 201611270282 A CN201611270282 A CN 201611270282A CN 106770252 A CN106770252 A CN 106770252A
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- remanent
- chloride
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- 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
The invention discloses a kind of Remanent Chloride In Drinking Water detection reagent and its application, including following percentage by weight composition：O-tolidine 10%~15%；N, N-1,4-phenylenediamine of diethyl 8.5%~12.5%；Phenylenediamine 4.5%~6.5%；Potassium dihydrogen phosphate 15.5%~22.5%；Sodium tetraborate 3.5%~5.5%；Remaining is disodium ethylene diamine tetraacetate.The Remanent Chloride In Drinking Water detection reagent has simple, intuitive, rapid sensitive accurate, with low cost, the advantages of easy to carry.
Description
Technical field
The present invention relates to water quality inspection technique field, more particularly to a kind of Remanent Chloride In Drinking Water detection reagent and its application.
Background technology
Chlorine residue in running water is surplus of the waterworks after addition chlorhexidine-containing disinfectant in the forward direction water of water outlet.In water
Chlorine residue form include free chlorine residual and combined chlorine.The form that free chlorine residual includes has chlorine, hypochlorous acid, hypochlorite ion.Change
Closing chlorine includes monochloro amine, dichlormaine and three chloramines.China《Standards for drinking water quality GB5749-2006》Refer to for disinfectant
Target is required：It is disinfection way according to chlorine or free chlorinated product, then surplus should be not less than 0.3mg/L in output water,
Not higher than 4mg/L, while the surplus of pipe network tip is not less than 0.05mg/L.Detection to residual chlorine amount in water to a certain extent may be used
The quality of Disinfection Effect is reacted, water quality chlorine residue detection method mainly has chemical method, AAS, electrochemistry and residual chlorine sensor
Method.Chlorine residue has strong oxidizing property and unstability in water, and running into water has microorganism or reducing substances, light etc. to be disappeared
Consume, preserve also more difficult, therefore the property of chlorine residue determines that the detection of chlorine residue is preferably to be determined immediately after wanting spot sampling in water,
It is just representative.Residual chlorine colorimeter is a kind of portable, for chlorine residue in quick detection water instrument, is often divided into host machine part
With matched reagent part.Can realize that the simple, intuitive to chlorine residue, rapid sensitive are detected.But application condition is big, and the degree of accuracy needs
Improve.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, there is provided a kind of simple, intuitive, rapid sensitive
Accurately, it is with low cost, Remanent Chloride In Drinking Water detection reagent easy to carry and its application.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of Remanent Chloride In Drinking Water detection reagent, including following percentage by weight composition：
Remaining is disodium ethylene diamine tetraacetate.
Above-mentioned Remanent Chloride In Drinking Water detection reagent, it is preferred that the composition including following percentage by weight：
Remaining is disodium ethylene diamine tetraacetate.
Above-mentioned Remanent Chloride In Drinking Water detection reagent, it is preferred that the composition including following percentage by weight：
Remaining is disodium ethylene diamine tetraacetate.
Used as a total inventive concept, the present invention also provides a kind of answering for above-mentioned Remanent Chloride In Drinking Water detection reagent
With comprising the following steps：Remanent Chloride In Drinking Water detection reagent is added in water sample to be measured, is shaken up after sealing, after standing 2min, adopted
Detected with residual chlorine colorimeter.
The application of above-mentioned Remanent Chloride In Drinking Water detection reagent, it is preferred that the ratio of water sample to be measured and chlorine residue detection reagent
For：10mL~15mL: 0.25g~0.5g.
Compared with prior art, the advantage of the invention is that：
The present invention is disposable reagent, detection reagent is dissolved directly into surveyed water sample when using, you can by remaining
Chlorine comparator measures residual chlorine concentration.Water chlorine residue produces yellow diphenoquinone with o-tolidine (O-tolidine) effect in reagent
Compound, colorimetric assay is carried out according to its shade, N, N- diethyl Isosorbide-5-Nitrae-phenylenediamine as free chlorine and total chlorine colour developing
Agent, using the phenylenediamine of certain content in reagent so that the sensitivity of reagent detection is higher, the present invention can be to laboratory and existing
Chlorine residue in the actual water sample of field carries out directly perceived, quick, portable detection.
Specific embodiment
Below in conjunction with specific preferred embodiment, the invention will be further described, following examples set forth of the invention
Specific embodiments, so that the present invention is further illustrated, these embodiments are explanation and do not indicate that the present invention is all
Possibility, the present invention is not limited only to material in these embodiments, reaction condition or parameter.These are without departing from this
Invent the basic conception of description, thus these modifications or it is different should all in the range of present invention covering.
Embodiment 1：
Take o-tolidine 12.5g, N, N-1,4-phenylenediamine of diethyl 11g, phenylenediamine 5.8g, potassium dihydrogen phosphate 19g,
Sodium tetraborate 4.5g and disodium ethylene diamine tetraacetate 47.2g mixes, and the Remanent Chloride In Drinking Water detection of the present embodiment is obtained after grinding
Reagent.
The measure of chlorine residue in running water：
Take in 10mL running water addition colorimetric cylinder, add the chlorine residue detection reagent of 0.5g the present embodiment, cover white modeling
Material small lid, places 2 minutes after shaking up, and is detected using residual chlorine colorimeter, and residual chlorine concentration is in as a result showing water sample to be measured
0.25mg/L.It is consistent with national standard method (GB/T 11898-89) testing result 0.25mg/L, show that the water quality chlorine residue is detected
Agent is accurate, reliable.
Embodiment 2：
Take o-tolidine 12g, N, N-1,4-phenylenediamine of diethyl 11.5g, phenylenediamine 5.8g, potassium dihydrogen phosphate 20g,
Sodium tetraborate 4g and disodium ethylene diamine tetraacetate 46.7g mixes, and the Remanent Chloride In Drinking Water detection examination of the present embodiment is obtained after grinding
Agent.
The measure of chlorine residue in running water：
Take in 10mL running water addition colorimetric cylinder, add the chlorine residue detection reagent of 0.5g the present embodiment, cover white modeling
Material small lid, places 2 minutes after shaking up, and is detected using residual chlorine colorimeter, and residual chlorine concentration is in as a result showing water sample to be measured
0.26mg/L.It is more or less the same with national standard method (GB/T 11898-89) testing result 0.25mg/L, shows the water quality chlorine residue
Detection agent is accurate, reliable.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned implementation
Example.All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It is noted that for the art
Those of ordinary skill for, improvements and modifications under the premise without departing from the principles of the invention, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of Remanent Chloride In Drinking Water detection reagent, it is characterised in that the composition including following percentage by weight：
2. Remanent Chloride In Drinking Water detection reagent according to claim 1, it is characterised in that including following percentage by weight
Composition：
3. Remanent Chloride In Drinking Water detection reagent according to claim 2, it is characterised in that including following percentage by weight
Composition：
4. a kind of application of Remanent Chloride In Drinking Water detection reagent as described in any one of claims 1 to 3, it is characterised in that bag
Include following steps：Remanent Chloride In Drinking Water detection reagent is added in water sample to be measured, is shaken up after sealing, after standing 2min, using remaining
Chlorine comparator is detected.
5. the application of Remanent Chloride In Drinking Water detection reagent according to claim 4, it is characterised in that water sample to be measured and chlorine residue
The ratio of detection reagent is：10mL~15mL: 0.25g~0.5g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270282.2A CN106770252A (en) | 2016-12-31 | 2016-12-31 | A kind of Remanent Chloride In Drinking Water detection reagent and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611270282.2A CN106770252A (en) | 2016-12-31 | 2016-12-31 | A kind of Remanent Chloride In Drinking Water detection reagent and its application |
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| CN106770252A true CN106770252A (en) | 2017-05-31 |
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| CN201611270282.2A Pending CN106770252A (en) | 2016-12-31 | 2016-12-31 | A kind of Remanent Chloride In Drinking Water detection reagent and its application |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612951A (en) * | 2018-11-13 | 2019-04-12 | 上海仪电科学仪器股份有限公司 | For detecting chlorine residue in water/total chlorine detection agent and preparation method thereof and detection method |
| CN113720830A (en) * | 2020-05-25 | 2021-11-30 | 杭州科莱迪环保技术有限公司 | High-efficiency water residual chlorine detection reagent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128833A (en) * | 2010-12-31 | 2011-07-20 | 杨海宁 | Reagent kit for detecting residual chlorine in water |
| CN104865246A (en) * | 2015-05-20 | 2015-08-26 | 常州大学 | Method for detecting free residual chlorine in drinking water |
| CN105548047A (en) * | 2015-12-23 | 2016-05-04 | 无锡吉进环保科技有限公司 | A detecting agent of residual chlorine in drinking water |
-
2016
- 2016-12-31 CN CN201611270282.2A patent/CN106770252A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128833A (en) * | 2010-12-31 | 2011-07-20 | 杨海宁 | Reagent kit for detecting residual chlorine in water |
| CN104865246A (en) * | 2015-05-20 | 2015-08-26 | 常州大学 | Method for detecting free residual chlorine in drinking water |
| CN105548047A (en) * | 2015-12-23 | 2016-05-04 | 无锡吉进环保科技有限公司 | A detecting agent of residual chlorine in drinking water |
Non-Patent Citations (1)
| Title |
|---|
| 陈静文 等: "余氯检测方法与余氯标准溶液的概括", 《化工管理》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612951A (en) * | 2018-11-13 | 2019-04-12 | 上海仪电科学仪器股份有限公司 | For detecting chlorine residue in water/total chlorine detection agent and preparation method thereof and detection method |
| CN113720830A (en) * | 2020-05-25 | 2021-11-30 | 杭州科莱迪环保技术有限公司 | High-efficiency water residual chlorine detection reagent |
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Application publication date: 20170531 |