CN103207158A - Water quality detecting agent for residual chlorine - Google Patents
Water quality detecting agent for residual chlorine Download PDFInfo
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- CN103207158A CN103207158A CN2013101314336A CN201310131433A CN103207158A CN 103207158 A CN103207158 A CN 103207158A CN 2013101314336 A CN2013101314336 A CN 2013101314336A CN 201310131433 A CN201310131433 A CN 201310131433A CN 103207158 A CN103207158 A CN 103207158A
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Abstract
The invention discloses a water quality detecting agent for residual chlorine, which relates to a scene quantitative detection technology for residual chlorine concentration in a water body. The water quality detecting agent is mainly formed by mixing an N,N-diethyl-1,4-phenylenediamine, disodium hydrogen phosphate, monopotassium phosphate, edetic acid disodium and the like. In use, the water quality detecting agent is directly dissolved in a 10-milliliter water sample and then is mixed with the sample for 1-2 minutes to be dissolved, and a spectrophotometer or a liquid chromometer is utilized to measure. The water quality detecting agent provided by the invention is convenient to carry and easy to store, any other reagent is not needed when the detecting agent is in use, the result is exact and reliable, and the water quality detecting agent is suitable for scene quantitative detection on residual chlorine concentration of surface water, life and hospital wastewater, ground water, tap water, drinking water, swimming pool water and the like.
Description
Technical field
The present invention relates to the preparation of chlorine residue developer and using method in a kind of detection water quality, belong to the chemical analysis technology field.
Background technology
Along with the fast development of industrial technology, Sudden Pollution Accident constantly increases, and is threatening human health, and saboteur's ecologic environment is seriously restricting the ecologic equilibrium and society, expanding economy.It is a lot of to take precautions against burst Pollution accident problem demanding prompt solution, top priority is to set up the emergency monitoring method and technology, in case contamination accident takes place, can drop into monitoring rapidly, in the shortest time, provide contamination data accurately, for antipollution diffusion and take counter-measure that scientific basis is provided.Therefore, extremely strong for time and spatial character, the significant Sudden Pollution Accident of random variation, on-the-spot detection obtain in time and answer comparatively accurately to detect accurate perfect answer than a laboratory of coming too lately valuable many.In-situ check and test method normally detects in real time in the workplace, namely records whether have test substance and concentration thereof in the sample at short notice.Being used for the on-the-spot method that detects need have sampling quantity few, and possesses characteristics such as higher accuracy and sensitivity, the instrument that fast, uses easy and simple to handle are easy to carry.Comparatively ripe at present in-situ check and test method has test paper method, detector tube method, micro-titration method, Bioexperiment method, portable instrument method etc.
Water quality chlorine residue detection method mainly contains chemical method, spectrophotometric method, galvanochemistry and residual chlorine sensor method.Chemical method comprises iodimetric titration and N, N-diethyl p-phenylenediamine-ferrous ammonium sulfate titration etc.Generally speaking the chemical analysis detectability is higher, but only is suitable for the mensuration of water middle and high concentration chlorine residue.Spectrophotometric method comprises fade spectrophotometric method and spectrophotometric method, and numerous researchers have carried out a lot of researchs.The aspect of chlorine residue fast detecting at the scene, Gao Jiayou etc. adopt chlorine residue in flow injection-rhodamine 6G Decoloring Spectrophotometric Determination water, assay method is simple, quick, and disturbing factor is few, and sensitivity is suitable, water sample does not generally need pre-service, realized the serialization of chlorine residue in the tap water and automatic assay (Gao Jiayou, salty love is red. chlorine residue in flow injection-Their Determination by Spectrophotometry tap water. physical and chemical inspection-chemical fascicle, 1997,33 (5): 220,2221).Hu Meizhen etc. utilize N, and N-diethyl-1,4-phenylenediamine (DPD) have been developed chlorine residue colour developing test paper, cost low, quick, easy (Hu Meizhen, village what, Ren Cuiyi. the development of chlorine residue test paper and application. Shanghai Normal University's journal (natural science edition), 2002,31 (1): 98-1001).Wang Zhenpu etc. are developer with DPD, set up the method for Flow Injection Chemiluminescence Method injection-spectrophotometry underwater trace chlorine residue, not only realized the automatic continuous analysis of chlorine residue, also can measure total available chlorine and free chlorine residual (Wang Zhenpu in the tap water respectively, Wu Hong, high elegant equality. the research of Flow Injection Chemiluminescence Method injection-spectrophotometry underwater trace chlorine residue. assay office, 2000,19 (1): 13-151).Wang Jingbin is developer with the Schiff bases, developed a kind of testing tube, can measure the total residual chlorine in the water fast, easily, be particularly suitable for on-the-spot the detection (Wang Jingbin. total residual chlorine in the testing tube method on-site measurement water fast. the Chinese environmental monitoring, 2002,18 (4): 21-231).Zhao Qingyou etc. adopt three electrode probes for the preparation of the volt-ampere type residual chlorine sensor of chlorine residual measurement, equipment is simple, easy to operate, reliable results, online Detection ﹠ Controling (the Zhao Qingyou that is suitable for chlorine residue such as tap water, swimming-pool water and medical sewage, Song Qimin. online chlorine residue measuring instrument. Chinese measuring technology, 2004,30 (3): 57-591).Chen Huanwen etc. are that developer has been developed a kind of handheld instrument based on chlorine residue in the spectrphotometric method for measuring water, total chlorine with DPD, and chlorine residue, total chlorine on-site measurement special agent bag (Chen Huanwen have been developed, Xu Shuping, Li Shuanfeng etc. development and the application of chlorine residue, total chlorine fast-field evaluation instrument. analytical chemistry, 2003,31 (11): 1399-14021).
Summary of the invention
The purpose of this invention is to provide a kind of disposable reagent that is suitable for water body contents of residual chlorine fast detecting such as river, lake, fish pond water, life and hospital sewage, underground water, tap water, potable water, swimming pool water, during use detection agent directly is dissolved into survey in the water sample, can record residual chlorine concentration by the coherent detection instrument.
In order to achieve the above object, the present invention uses N, N-diethyl-1, and 4-phenylenediamine (DPD) colour developing chlorine residue detection method prepares water quality chlorine residue detection agent, and mainly by DPD, pH correctives with after disturbing screening agent to mix in proportion, concrete preparation method is as follows:
The preparation method of water quality chlorine residue detection agent is: N, N-diethyl p-phenylenediamine and Macrogol 4000 (fusing) mix by 1:9, cool off, pulverize the A powder; It is an amount of to get disodium ethylene diamine tetraacetate, sodium hydrogen phosphate, potassium dihydrogen phosphate, anhydrous sodium sulfate by 1:20:30:500, and mixed grinding gets the B powder, by mass ratio 1:24 take by weighing the A powder, the B powder mixes, and namely gets water quality chlorine residue detection agent,
Above-mentioned agents useful for same: N, N-diethyl-1,4-phenylenediamine, sodium hydrogen phosphate, potassium dihydrogen phosphate, disodium ethylene diamine tetraacetate all have commercially available.
The using method of water quality chlorine residue detection agent is: in 10ml water sample to be measured, add 0.3g water quality chlorine residue detection agent, shake dissolving in 1 ~ 2 minute after, utilize spectrophotometer or tintometer to measure and namely get residual chlorine concentration in the water sample.
Advantage of the present invention is: (1) water quality chlorine residue of the present invention detection agent need not add other any reagent when using, and has characteristics such as cheap, easy to carry, and the layman can operate.(2) this detection agent is suitable for the detection of chlorine residue in the water bodys such as river, lake, fish pond water, life and hospital sewage, underground water, tap water, potable water, swimming pool water, sensing range: 0.1 ~ 2.0mg/L chlorine residue.
Embodiment
Embodiment 1The preparation of water quality chlorine residue detection agent
Take by weighing 1g N, N-diethyl p-phenylenediamine and 9g fusing Macrogol 4000 liquid mixes, cool off, pulverize the A powder; Take by weighing 1g disodium ethylene diamine tetraacetate, 20g sodium hydrogen phosphate, 30g potassium dihydrogen phosphate, 500g anhydrous sodium sulfate respectively and mix, grind the B powder; Get 5g A powder and mix fully with 120g B powder, namely get water quality chlorine residue detection agent.
Embodiment 2The mensuration of chlorine residue in the tap water
Get the 10ml tap water in the 10ml color comparison tube, add 0.3g water quality chlorine residue detection agent, shake color comparison tube 1min and make its dissolving, measure absorbance at spectrophotometer 515nm place, calculating residual chlorine concentration is 0.28 mg/L, 0.29 mg/L is consistent with national standard method (GB/T 11898-89) testing result, shows that this water quality chlorine residue detection agent accurately, reliably.
Claims (3)
1. water quality chlorine residue detection agent, it is characterized in that, mainly by N, N-diethyl-1,4-phenylenediamine, sodium hydrogen phosphate, potassium dihydrogen phosphate and disodium ethylene diamine tetraacetate etc. mix in proportion, during use, water quality chlorine residue detection agent directly is dissolved in the water sample, can records residual chlorine concentration by the coherent detection instrument.
2. the preparation method of the described water quality chlorine residue of claim 1 detection agent is characterized in that, N, N-diethyl p-phenylenediamine and Macrogol 4000 (fusing) mix by 1:9, cool off, pulverize the A powder; It is an amount of to get disodium ethylene diamine tetraacetate, sodium hydrogen phosphate, potassium dihydrogen phosphate, anhydrous sodium sulfate by 1:20:30:500, and mixed grinding gets the B powder, by mass ratio 1:24 take by weighing the A powder, the B powder mixes fully, namely gets water quality chlorine residue detection agent;
Agents useful for same: N, N-diethyl-1,4-phenylenediamine, sodium hydrogen phosphate, potassium dihydrogen phosphate, disodium ethylene diamine tetraacetate, anhydrous sodium sulfate are commercially available analysis pure chemistry product.
3. the using method of the described water quality chlorine residue of claim 1 detection agent is characterized in that, adds 0.3g chlorine residue detection agent in 10ml water sample to be measured, shake dissolving in 1 ~ 2 minute after, measure by spectrophotometer or tintometer and namely to get residual chlorine concentration.
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| CN2013101314336A CN103207158A (en) | 2013-04-17 | 2013-04-17 | Water quality detecting agent for residual chlorine |
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| CN2013101314336A CN103207158A (en) | 2013-04-17 | 2013-04-17 | Water quality detecting agent for residual chlorine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374714A (en) * | 2014-07-15 | 2015-02-25 | 上海绿帝环保科技有限公司 | Detection agent for determining water alkalinity |
| CN104677900A (en) * | 2015-02-28 | 2015-06-03 | 温州医科大学 | Method capable of eliminating influence of reagent blank and rapidly detecting content of chlorine dioxide in water |
| CN105300970A (en) * | 2015-02-05 | 2016-02-03 | 温州医科大学 | Water total residual chlorine on-site quick detecting method capable of eliminating reagent blank impacts |
| CN105606554A (en) * | 2016-03-07 | 2016-05-25 | 上海仪电科学仪器股份有限公司 | Method for measuring free chlorine and total chlorine in water |
| CN107782723A (en) * | 2017-09-28 | 2018-03-09 | 蒋成量 | A kind of preparation method of ClO 2 solution Concentration Testing test paper |
| CN108344848A (en) * | 2018-02-06 | 2018-07-31 | 山东五洲检测有限公司 | It is a kind of to be used to detect water quality detection agent of chlorine in water and preparation method thereof |
| CN111458329A (en) * | 2020-03-05 | 2020-07-28 | 力合科技（湖南）股份有限公司 | Total chlorine and residual chlorine analysis method |
| CN111474168A (en) * | 2020-03-05 | 2020-07-31 | 力合科技（湖南）股份有限公司 | Residual chlorine analysis 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 |
| CN113984755A (en) * | 2021-12-23 | 2022-01-28 | 广东环凯生物技术有限公司 | Quick detection powder for residual chlorine, ozone and total chlorine in water and preparation method thereof |
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| JP2011043482A (en) * | 2009-08-24 | 2011-03-03 | Nippon Soda Co Ltd | Residual chlorine measuring reagent |
| CN102128833A (en) * | 2010-12-31 | 2011-07-20 | 杨海宁 | Reagent kit for detecting residual chlorine in water |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011043482A (en) * | 2009-08-24 | 2011-03-03 | Nippon Soda Co Ltd | Residual chlorine measuring reagent |
| CN102128833A (en) * | 2010-12-31 | 2011-07-20 | 杨海宁 | Reagent kit for detecting residual chlorine in water |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374714A (en) * | 2014-07-15 | 2015-02-25 | 上海绿帝环保科技有限公司 | Detection agent for determining water alkalinity |
| CN104374714B (en) * | 2014-07-15 | 2017-02-15 | 上海绿帝环保科技有限公司 | Detection agent for determining water alkalinity |
| CN105300970B (en) * | 2015-02-05 | 2018-02-16 | 温州医科大学 | Total residual chlorine field fast detection method in a kind of water for eliminating reagent blank influence |
| CN105300970A (en) * | 2015-02-05 | 2016-02-03 | 温州医科大学 | Water total residual chlorine on-site quick detecting method capable of eliminating reagent blank impacts |
| CN104677900A (en) * | 2015-02-28 | 2015-06-03 | 温州医科大学 | Method capable of eliminating influence of reagent blank and rapidly detecting content of chlorine dioxide in water |
| CN104677900B (en) * | 2015-02-28 | 2017-07-11 | 温州医科大学 | A kind of method of chlorine dioxide content in quick detection water for eliminating reagent blank influence |
| CN105606554A (en) * | 2016-03-07 | 2016-05-25 | 上海仪电科学仪器股份有限公司 | Method for measuring free chlorine and total chlorine in water |
| CN107782723A (en) * | 2017-09-28 | 2018-03-09 | 蒋成量 | A kind of preparation method of ClO 2 solution Concentration Testing test paper |
| CN108344848A (en) * | 2018-02-06 | 2018-07-31 | 山东五洲检测有限公司 | It is a kind of to be used to detect water quality detection agent of chlorine in water and preparation method thereof |
| CN111458329A (en) * | 2020-03-05 | 2020-07-28 | 力合科技（湖南）股份有限公司 | Total chlorine and residual chlorine analysis method |
| CN111474168A (en) * | 2020-03-05 | 2020-07-31 | 力合科技（湖南）股份有限公司 | Residual chlorine analysis 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 |
| CN113984755A (en) * | 2021-12-23 | 2022-01-28 | 广东环凯生物技术有限公司 | Quick detection powder for residual chlorine, ozone and total chlorine in water and preparation method thereof |
| CN113984755B (en) * | 2021-12-23 | 2022-04-01 | 广东环凯生物技术有限公司 | Quick detection powder for residual chlorine, ozone and total chlorine in water and preparation method thereof |
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Application publication date: 20130717 |