CN104406965A - Kit for quickly detecting residual chlorine in water sample and use method of kit - Google Patents
Kit for quickly detecting residual chlorine in water sample and use method of kit Download PDFInfo
- Publication number
- CN104406965A CN104406965A CN201410679565.7A CN201410679565A CN104406965A CN 104406965 A CN104406965 A CN 104406965A CN 201410679565 A CN201410679565 A CN 201410679565A CN 104406965 A CN104406965 A CN 104406965A
- Authority
- CN
- China
- Prior art keywords
- water sample
- kit
- chlorine residue
- solution
- detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention relates to a kit for quickly detecting residual chlorine in a water sample and a use method of the kit. The kit and the method are suitable for quickly detecting the residual chlorine in the water sample. The kit for quickly detecting the residual chlorine in the water sample comprises the following components: a masking agent, a color developing agent, a color enhancing agent, a buffer agent, diluted hydrochloric acid of which the concentration is 6%, a test tube, a dropper with a rubber head, standard pH paper and a self-made color chart. Comparing a reaction liquid with the self-made color chart is only required to obtain changes of color, so that the observation is easy. Besides, the kit and the method have the advantages that the cost is low, the production is easy, the detection sensitivity is high, and the operation is simple and rapid.
Description
Technical field
The present invention relates to a kind of detection method of water sample, more specifically relating to a kind of kit for detecting chlorine residue in water sample fast and using method thereof.
Background technology
Chlorine residue refers to that water is through chlorination, after contact certain hour, and effective chlorine remaining in water.Chlorine is thrown in water, after certain hour contact, free property chlorine remaining in water and the general name of associativity chlorine.Refer to that chlorine drops into after in water, consume except a part of chlorine dose except acting on bacterium, microorganism, organism, inorganics etc. in water, also leave a part of chlorine dose, this part chlorine dose is just called chlorine residue.Chlorine residue can be divided into combined residual chlorine (refer to the compound of chlorine and ammonia in water, have NH2Cl, NHCl2 and NHCl3 tri-kinds, more stable with NHCl2, bactericidal effect is good), is combinative residual chlorine again; Free residual chlorine refers to ClO-, HClO, Cl2 etc. in water, and sterilization speed is fast, and sterilizing power is strong, but it is fast to disappear), cry again freedom chlorine residue; Total residual chlorine and combined residual chlorine and free residual chlorine sum.The effect of chlorine residue ensures Continuous sterilization, also can be polluted by anti-sealing again.Chlorine is current the most widely used sanitizer, and to carry out disinfection sterilization to tap water with chloride disinfectant, inexpensive, effective, easy to operate, well received, the whole world is general.But chlorine is good to bacterial cell killing effect, equally, other biological body cell, human body cell are also had a strong impact on.Add chlorine, as the effective sterilizing means of one, still used by the water factory in the world more than 80% at present.So, a certain amount of chlorine residue must be kept in municipal tap water, to guarantee the microbiological indicator safety of potable water.But, when chlorine and organic acid reaction, many carcinogenic accessory substances will be produced, such as methenyl choloride etc.Exceed a certain amount of chlorine, much harm will be produced to human body, and with niff, be commonly called as " chlorinated lime taste ".Expert studies discovery, has a bath ten minutes with tap water, and have four one-tenth to be suck via respiratory tract in bathroom in chlorine total amount, three one-tenth is absorbed by skin.Visible in airtight air, quite surprising via the chlorinity breathed or skin sucks.These chlorine be less readily available for absorption by the skin, the lighter can injure skin, makes that skin quality is coarse even produces itch.Heavy then the decline of the physiological function that can cause people that accumulates over a long period, the increase of cancer morbidity.Measure contents of residual chlorine and existence in water, to carrying out disinfection of drinking water work and ensureing that water hygiene safety is very important.
The mensuration of chlorine residue mainly has three kinds, portable DPD chlorine residual measurement instrument; O-tolidine colorimetric method; Online electrochemical analysis chlorine residue instrument.On-site measurement method in the exposure draft of National Standard of the People's Republic of China's " the mensuration N of water quality free chlorine and total chlorine, N-diethyl Isosorbide-5-Nitrae-phenylenediamine spectrophotometric method " and new replacement standard GB11898-89, its method is: at sample
The DPD solution of recommendation sample size 1/20 volume and the phosphate buffered solution of 1/20 volume is added in cup or pipe, then add instrument and recommend the sample of sample volume (adding the liquor kalii iodide recommending sample size 1/10 volume when surveying total chlorine again), colorimetric estimation after mixing.The detection reagent related in this assay method is all liquid reagent, according to calculating, its effective content of these liquid reagents added during mensuration in water sample is considerably less, if direct basis liquid fraction carries out content, mixing to realize reagent solids package, therefore need to change ratio of reagents, make it neither to affect water determination and can realize again good solids mixing processing technology.But the method is by the content of spectrophotometry chlorine residue, although data are accurate, be not easy to field quick detection, and need calculate by calculating, consuming time longer, not intuitively.
Summary of the invention
The object of the invention is to provide a kind of economic and practical to overcome above the deficiencies in the prior art, phenomenon change obviously, can detect chlorine residue residual quantity in water sample fast and accurately.
Technical scheme: the invention discloses a kind of kit for detecting chlorine residue in water sample fast, comprising following composition: screening agent, developer, toner, buffering agent, 6% concentration watery hydrochloric acid, test tube, glue head dropper, standard pH test paper and self-control colorimetric card.
The above-described kit for detecting chlorine residue in water sample fast, screening agent is the mixed aqueous solution of tartrate and sulfanilic acid.
The above-described kit for detecting chlorine residue in water sample fast, the mass ratio of screening agent mesotartaric acid, sulfanilic acid and aqueous solution is 1:1:100 ~ 1:1:200.
The above-described kit for detecting chlorine residue in water sample fast, developer is the aqueous hydrochloric acid solution of the adjacent biphenyl methylamine of 0.05%-0.2%.
The above-described kit for detecting chlorine residue in water sample fast, developer is add water dilution after adjacent biphenyl methylamine solid adds 30% salt acid ball milling to obtain.
The above-described kit for detecting chlorine residue in water sample fast, toner is ethyl acetate.
The above-described kit for detecting chlorine residue in water sample fast, buffering agent is the citric acid-sodium citrate solution of 0.05mol/L-0.2mol/L.
The using method of the above-described kit for detecting chlorine residue in water sample fast, comprises the steps:
Step one, gets water sample 10mL-20mL to be measured, adds 3-5 and drip screening agent in water sample, stirs to drip 3-5 after 2-3 minute and drip buffering agent;
Step 2, drips 6% watery hydrochloric acid in the solution described in step one, with stopping during standard pH test paper assaying reaction liquid pH=1 dripping;
Step 3, adds 1mL-2mL developer with dropper to the solution described in step 2, stirs 5-10 minute;
Step 4, drips 2-3 to the reactant liquor described in step 3 and drips toner, stir 2-3 minute;
Step 5, observes the solution colour described in step 4, contrasts obtain respective color to determine the content of chlorine residue in water sample with self-control colorimetric card.
The using method of the above-described kit for detecting chlorine residue in water sample fast, contrasting with self-control colorimetric card described in step 5 obtains respective color to determine that the pass of color that in water sample, the content of chlorine residue is concrete and content is:
| Color | Oyster | Faint yellow | Middle yellow | Lemon yellow | Khaki | Brown color | Orange |
| Concentration (mg/L) | ＜0.05 | 0.05~0.3 | 0.3~0.5 | 0.5~1.0 | 1.0~1.5 | 1.5~2.0 | ＞2.0 |
Beneficial effect: the cost for the kit making detecting chlorine residue in water sample fast made by this method is low, and be easy to observe, make simple, phenomenon change is obvious, and intuitively measure content, detection sensitivity is high, simple and quick.
Embodiment
Embodiment 1
For detecting a kit for chlorine residue in water sample fast, comprise following composition: screening agent (mass ratio is the mixed solution of 1:1:100 tartrate, sulfanilic acid, water), 0.05% the aqueous hydrochloric acid solution of adjacent biphenyl methylamine, ethyl acetate, the citric acid-sodium citrate solution of 0.05mol/L, 6% concentration watery hydrochloric acid, test tube, glue head dropper, standard pH test paper and self-control colorimetric card.
The using method of the above-described kit for detecting chlorine residue in water sample fast, comprises the steps:
Step one, gets Suzhou District 7 tap water water sample 10mL in evening, adds 3 screening agents, stir the citric acid-sodium citrate solution dripping 5 0.05mol/L after 2 minutes in water sample;
Step 2, drips 6% watery hydrochloric acid in the solution described in step one, with stopping during standard pH test paper assaying reaction liquid pH=1 dripping, drips 2 watery hydrochloric acid altogether;
Step 3, adds the aqueous hydrochloric acid solution of the adjacent biphenyl methylamine of 0.05% of 2mL to the solution described in step 2 with dropper, stir 10 minutes;
Step 4, drips 3 ethyl acetate to the reactant liquor described in step 3, stirs 3 minutes;
Step 5, observes the solution colour described in step 4, and by comparing for middle yellow with self-control colorimetric card, contents of residual chlorine is 0.3mg/L ~ 0.5mg/L.
Embodiment 2
For detecting a kit for chlorine residue in water sample fast, comprise following composition: screening agent (mass ratio is the mixed solution of 1:1:200 tartrate, sulfanilic acid, water), 0.2% the aqueous hydrochloric acid solution of adjacent biphenyl methylamine, ethyl acetate, the citric acid-sodium citrate solution of 0.2mol/L, 6% concentration watery hydrochloric acid, test tube, glue head dropper, standard pH test paper and self-control colorimetric card.
The using method of the above-described kit for detecting chlorine residue in water sample fast, comprises the steps:
Step one, gets Suzhou District 12 noon tap water water sample 20mL, adds 5 screening agents in water sample, stirs the citric acid-sodium citrate solution dripping 3 0.2mol/L after 3 minutes;
Step 2, drips 6% watery hydrochloric acid in the solution described in step one, with stopping during standard pH test paper assaying reaction liquid pH=1 dripping, drips 3 watery hydrochloric acid altogether;
Step 3, adds the aqueous hydrochloric acid solution of the adjacent biphenyl methylamine of 0.2% of 1mL to the solution described in step 2 with dropper, stir 5 minutes;
Step 4, drips 2 ethyl acetate to the reactant liquor described in step 3, stirs 2 minutes;
Step 5, observes the solution colour described in step 4, and by comparing for faint yellow with self-control colorimetric card, contents of residual chlorine is 0.05mg/L ~ 0.3mg/L.
Embodiment 3
For detecting a kit for chlorine residue in water sample fast, comprise following composition: screening agent (mass ratio is the mixed solution of 1:1:150 tartrate, sulfanilic acid, water), 0.1% the aqueous hydrochloric acid solution of adjacent biphenyl methylamine, ethyl acetate, the citric acid-sodium citrate solution of 0.1mol/L, 6% concentration watery hydrochloric acid, test tube, glue head dropper, standard pH test paper and self-control colorimetric card.
The using method of the above-described kit for detecting chlorine residue in water sample fast, comprises the steps:
Step one, gets Suzhou District early 9 tap water water sample 15mL, adds 4 screening agents, stir the citric acid-sodium citrate solution dripping 3 0.1mol/L after 2 minutes in water sample;
Step 2, drips 6% watery hydrochloric acid in the solution described in step one, with stopping during standard pH test paper assaying reaction liquid pH=1 dripping, drips 4 watery hydrochloric acid altogether;
Step 3, adds the aqueous hydrochloric acid solution of the adjacent biphenyl methylamine of 0.1% of 2mL to the solution described in step 2 with dropper, stir 10 minutes;
Step 4, drips 2 ethyl acetate to the reactant liquor described in step 3, stirs 3 minutes;
Step 5, observes the solution colour described in step 4, and by comparing for lemon yellow with self-control colorimetric card, contents of residual chlorine is 0.5mg/L ~ 1.0mg/L.
Embodiment 4
For detecting a kit for chlorine residue in water sample fast, comprise following composition: screening agent (mass ratio is the mixed solution of 1:1:120 tartrate, sulfanilic acid, water), 0.2% the aqueous hydrochloric acid solution of adjacent biphenyl methylamine, ethyl acetate, the citric acid-sodium citrate solution of 0.1mol/L, 6% concentration watery hydrochloric acid, test tube, glue head dropper, standard pH test paper and self-control colorimetric card.
The using method of the above-described kit for detecting chlorine residue in water sample fast, comprises the steps:
Step one, gets Suzhou District early 5 tap water water sample 18mL, adds 4 screening agents, stir the citric acid-sodium citrate solution dripping 3 0.1mol/L after 3 minutes in water sample;
Step 2, drips 6% watery hydrochloric acid in the solution described in step one, with stopping during standard pH test paper assaying reaction liquid pH=1 dripping, drips 2 watery hydrochloric acid altogether;
Step 3, adds the aqueous hydrochloric acid solution of the adjacent biphenyl methylamine of 0.2% of 2mL to the solution described in step 2 with dropper, stir 8 minutes;
Step 4, drips 2 ethyl acetate to the reactant liquor described in step 3, stirs 3 minutes;
Step 5, observes the solution colour described in step 4, and by comparing for khaki with self-control colorimetric card, contents of residual chlorine is 1.0mg/L ~ 1.5mg/L.
Embodiment 5
For detecting a kit for chlorine residue in water sample fast, comprise following composition: screening agent (mass ratio is the mixed solution of 1:1:180 tartrate, sulfanilic acid, water), 0.15% the aqueous hydrochloric acid solution of adjacent biphenyl methylamine, ethyl acetate, the citric acid-sodium citrate solution of 0.08mol/L, 6% concentration watery hydrochloric acid, test tube, glue head dropper, standard pH test paper and self-control colorimetric card.
The using method of the above-described kit for detecting chlorine residue in water sample fast, comprises the steps:
Step one, gets and copies the homemade water sample 13mL of tap water composition, add 3 screening agents in water sample, stirs the citric acid-sodium citrate solution dripping 4 0.08mol/L after 3 minutes;
Step 2, drips 6% watery hydrochloric acid in the solution described in step one, with stopping during standard pH test paper assaying reaction liquid pH=1 dripping, drips 3 watery hydrochloric acid altogether;
Step 3, adds the aqueous hydrochloric acid solution of the adjacent biphenyl methylamine of 0.15% of 1mL to the solution described in step 2 with dropper, stir 7 minutes;
Step 4, drips 2 ethyl acetate to the reactant liquor described in step 3, stirs 2 minutes;
Step 5, observes the solution colour described in step 4, and by comparing for oyster with self-control colorimetric card, contents of residual chlorine is < 0.05mg/L.
Embodiment 6
For detecting a kit for chlorine residue in water sample fast, comprise following composition: screening agent (mass ratio is the mixed solution of 1:1:140 tartrate, sulfanilic acid, water), 0.12% the aqueous hydrochloric acid solution of adjacent biphenyl methylamine, ethyl acetate, the citric acid-sodium citrate solution of 0.14mol/L, 6% concentration watery hydrochloric acid, test tube, glue head dropper, standard pH test paper and self-control colorimetric card.
The using method of the above-described kit for detecting chlorine residue in water sample fast, comprises the steps:
Step one, gets and copies the homemade water sample 17mL of tap water composition, add 3 screening agents in water sample, stirs the citric acid-sodium citrate solution dripping 5 0.14mol/L after 3 minutes;
Step 2, drips 6% watery hydrochloric acid in the solution described in step one, with stopping during standard pH test paper assaying reaction liquid pH=1 dripping, drips 4 watery hydrochloric acid altogether;
Step 3, adds the aqueous hydrochloric acid solution of the adjacent biphenyl methylamine of 0.12% of 2mL to the solution described in step 2 with dropper, stir 10 minutes;
Step 4, drips 3 ethyl acetate to the reactant liquor described in step 3, stirs 2 minutes;
Step 5, observes the solution colour described in step 4, and by comparing for brown color with self-control colorimetric card, contents of residual chlorine is 1.5mg/L ~ 2.0mg/L.
Embodiment 7
For detecting a kit for chlorine residue in water sample fast, comprise following composition: screening agent (mass ratio is the mixed solution of 1:1:130 tartrate, sulfanilic acid, water), 0.07% the aqueous hydrochloric acid solution of adjacent biphenyl methylamine, ethyl acetate, the citric acid-sodium citrate solution of 0.18mol/L, 6% concentration watery hydrochloric acid, test tube, glue head dropper, standard pH test paper and self-control colorimetric card.
The using method of the above-described kit for detecting chlorine residue in water sample fast, comprises the steps:
Step one, gets and copies the homemade water sample 11mL of tap water composition, add 4 screening agents in water sample, stirs the citric acid-sodium citrate solution dripping 5 0.18mol/L after 2 minutes;
Step 2, drips 6% watery hydrochloric acid in the solution described in step one, with stopping during standard pH test paper assaying reaction liquid pH=1 dripping, drips 3 watery hydrochloric acid altogether;
Step 3, adds the aqueous hydrochloric acid solution of the adjacent biphenyl methylamine of 0.07% of 2mL to the solution described in step 2 with dropper, stir 6 minutes;
Step 4, drips 2 ethyl acetate to the reactant liquor described in step 3, stirs 2 minutes;
Step 5, observes the solution colour described in step 4, and by comparing for orange with self-control colorimetric card, contents of residual chlorine is > 2.0mg/L.
7 kinds that detect for above embodiment 1-7 different water samples, by detecting that the concrete content of chlorine residue verifies result of the present invention, the results are shown in Table 1:
The testing result of table 1 embodiment 1-7 and concrete detected value
| Testing result of the present invention | Concrete detection numerical value | |
| Embodiment 1 | 0.3mg/L~0.5mg/L | 0.326mg/L |
| Embodiment 2 | 0.05mg/L~0.3mg/L | 0.137mg/L |
| Embodiment 3 | 0.5mg/L~1.0mg/L | 0.752mg/L |
| Embodiment 4 | 1.0mg/L~1.5mg/L | 1.233mg/L |
| Embodiment 5 | ＜0.05mg/L | 0.025mg/L |
| Embodiment 6 | 1.5mg/L~2.0mg/L | 1.658mg/L |
| Embodiment 7 | ＞2.0mg/L | 3.549mg/L |
As known from Table 1, it is entirely true that kit for detecting chlorine residue in water sample fast used in the present invention detects the numerical range obtained, and test result of the present invention only just can need be obtained by the change of reactant liquor being compared color with homemade colorimetric card, be easy to observe.Have cost low, make simple, detection sensitivity is high, simple and quick advantage simultaneously.
Claims (9)
1. for detecting a kit for chlorine residue in water sample fast, it is characterized in that, comprising following composition: screening agent, developer, toner, buffering agent, 6% concentration watery hydrochloric acid, test tube, glue head dropper, standard pH test paper and self-control colorimetric card.
2. the kit for detecting chlorine residue in water sample fast according to claim 1, is characterized in that, screening agent is the mixed aqueous solution of tartrate and sulfanilic acid.
3. the kit for detecting chlorine residue in water sample fast according to claim 1 and 2, is characterized in that, the mass ratio of screening agent mesotartaric acid, sulfanilic acid and aqueous solution is 1:1:100 ~ 1:1:200.
4. the kit for detecting chlorine residue in water sample fast according to claim 1, is characterized in that, developer is the aqueous hydrochloric acid solution of the adjacent biphenyl methylamine of 0.05%-0.2%.
5. the kit for detecting chlorine residue in water sample fast according to claim 1 or 4, is characterized in that, developer is add water dilution after adjacent biphenyl methylamine solid adds 30% salt acid ball milling to obtain.
6. the kit for detecting chlorine residue in water sample fast according to claim 1, is characterized in that, toner is ethyl acetate.
7. the kit for detecting chlorine residue in water sample fast according to claim 1, is characterized in that, buffering agent is the citric acid-sodium citrate solution of 0.05mol/L-0.2mol/L.
8. a using method for the kit for detecting chlorine residue in water sample fast described in any one of claim 1-7, comprises the steps:
Step one, gets water sample 10mL-20mL to be measured, adds 3-5 and drip screening agent in water sample, stirs to drip 3-5 after 2-3 minute and drip buffering agent;
Step 2, drips 6% watery hydrochloric acid in the solution described in step one, with stopping during standard pH test paper assaying reaction liquid pH=1 dripping;
Step 3, adds 1mL-2mL developer with dropper to the solution described in step 2, stirs 5-10 minute;
Step 4, drips 2-3 to the reactant liquor described in step 3 and drips toner, stir 2-3 minute;
Step 5, observes the solution colour described in step 4, contrasts obtain respective color to determine the content of chlorine residue in water sample with self-control colorimetric card.
9. the using method of the kit for detecting chlorine residue in water sample fast according to claim 8, it is characterized in that, contrasting with self-control colorimetric card described in step 5 obtains respective color to determine that the pass of color that in water sample, the content of chlorine residue is concrete and content is:
。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679565.7A CN104406965A (en) | 2014-11-24 | 2014-11-24 | Kit for quickly detecting residual chlorine in water sample and use method of kit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679565.7A CN104406965A (en) | 2014-11-24 | 2014-11-24 | Kit for quickly detecting residual chlorine in water sample and use method of kit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104406965A true CN104406965A (en) | 2015-03-11 |
Family
ID=52644612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410679565.7A Pending CN104406965A (en) | 2014-11-24 | 2014-11-24 | Kit for quickly detecting residual chlorine in water sample and use method of kit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104406965A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546584A (en) * | 2016-11-09 | 2017-03-29 | 百奥森（江苏）食品安全科技有限公司 | The quick detection kit and using method of organochlorine residue in a kind of agricultural product |
| 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 |
| CN109085162A (en) * | 2018-09-07 | 2018-12-25 | 东莞精准通检测认证股份有限公司 | A kind of chlorine residue detection method |
| CN110487783A (en) * | 2019-09-08 | 2019-11-22 | 杭州陆恒生物科技有限公司 | A kind of chlorine residue detection reagent, kit and the application method of high stability |
| CN111504993A (en) * | 2020-05-06 | 2020-08-07 | 中国检验检疫科学研究院 | Ballast water disinfection residual chlorine rapid detection kit |
Citations (2)
| 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 |
| KR20130130894A (en) * | 2012-05-23 | 2013-12-03 | 주식회사 씨맥 | Nitrate concentration detecting agent and the kit using thereof |
-
2014
- 2014-11-24 CN CN201410679565.7A patent/CN104406965A/en active Pending
Patent Citations (2)
| 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 |
| KR20130130894A (en) * | 2012-05-23 | 2013-12-03 | 주식회사 씨맥 | Nitrate concentration detecting agent and the kit using thereof |
Non-Patent Citations (5)
| Title |
|---|
| TOYOAKI AOKI等: "同时测定水中硝酸盐和氨的连续流动方法", 《污染防治技术》 * |
| 中华人民共和国卫生部: "生活饮用水标准检验法", 《中国人民共和国国家标准》 * |
| 周心怡 等: "硝酸根电极法同时测定肉制品中硝酸盐和亚硝酸盐含量", 《无锡轻工业学院学报》 * |
| 梁军 等: "丁香醛连氮测定饮水中余氯的应用研究", 《解放军预防医学杂志》 * |
| 王静斌: "水中余氯现场快速测定方法研究", 《环境污染与防治》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546584A (en) * | 2016-11-09 | 2017-03-29 | 百奥森（江苏）食品安全科技有限公司 | The quick detection kit and using method of organochlorine residue in a kind of agricultural product |
| 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 |
| CN109085162A (en) * | 2018-09-07 | 2018-12-25 | 东莞精准通检测认证股份有限公司 | A kind of chlorine residue detection method |
| CN113588631A (en) * | 2018-09-07 | 2021-11-02 | 精准通检测认证(广东)有限公司 | Residual chlorine detection method |
| CN110487783A (en) * | 2019-09-08 | 2019-11-22 | 杭州陆恒生物科技有限公司 | A kind of chlorine residue detection reagent, kit and the application method of high stability |
| CN111504993A (en) * | 2020-05-06 | 2020-08-07 | 中国检验检疫科学研究院 | Ballast water disinfection residual chlorine rapid detection kit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102128833A (en) | Reagent kit for detecting residual chlorine in water | |
| CN104406965A (en) | Kit for quickly detecting residual chlorine in water sample and use method of kit | |
| CN101793902A (en) | Device for fluidly injecting and rapidly analyzing residual chlorine of water quality and analysis method thereof | |
| CN108107039B (en) | Peroxyacetic acid determination test paper and determination method thereof | |
| CN103940883B (en) | Can quickly detect the preparation method of disposable microbial membrane sensor, application, device and the detection method of aqueous bio toxicity | |
| CN101131384A (en) | Method for detecting subaqueous acute biological toxicity using photobacteria | |
| CN103901015B (en) | A kind of detection method that thiocyanate radical in dairy products and melamine are carried out common inspection | |
| EP1791970A4 (en) | Detection of bacteria in fluids | |
| CN103837485B (en) | The method of zinc ion in detection water quality | |
| CN106645123A (en) | Reagent and test paper for rapidly measuring ammonia nitrogen in water, and detection method | |
| US7901932B2 (en) | Methods and compositions for rapidly detecting and quantifying viable Legionella | |
| CN103323453B (en) | Cadmium detects liquid, testing cassete and assay method fast | |
| CN106415267B (en) | Dynamics chlorine measures | |
| CN105277535A (en) | On-site rapid detection method for ammonia nitrogen in water and capable of eliminating reagent blank effects | |
| CN105300970B (en) | Total residual chlorine field fast detection method in a kind of water for eliminating reagent blank influence | |
| CN105606554A (en) | Method for measuring free chlorine and total chlorine in water | |
| CN107024441B (en) | A kind of measuring method of the ammonia-nitrogen content suitable for different salinity water body | |
| CN111024687B (en) | Glutaraldehyde determination test paper and rapid determination method | |
| CN101231245A (en) | Method and kit for quick qualitative testing chlorine dioxide in milk | |
| CN104345058A (en) | Detection test paper | |
| CN106770252A (en) | A kind of Remanent Chloride In Drinking Water detection reagent and its application | |
| CN103383356A (en) | Method for rapidly determining chlorates in drinking water | |
| CN103983641B (en) | A kind of for detecting the test kit of amino benzenes compounds in water body | |
| Li et al. | Photokinetic voltammetric method for the determination of thiocyanate | |
| CN106596837A (en) | Test method for evaluating reaction proportion of nascent state oxygen during determination of ozone in water with iodometric method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150311 |