CN107064127A - Ammonia nitrogen water quality online test method - Google Patents
Ammonia nitrogen water quality online test method Download PDFInfo
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- CN107064127A CN107064127A CN201710266510.7A CN201710266510A CN107064127A CN 107064127 A CN107064127 A CN 107064127A CN 201710266510 A CN201710266510 A CN 201710266510A CN 107064127 A CN107064127 A CN 107064127A
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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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- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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Abstract
Present invention is disclosed ammonia nitrogen water quality online test method, comprise the following steps：Before test, instrument suitable testing conditions and metering system are determined；Cleaned in cuvette, set cleaning temperature as 30 60 DEG C, clean the 10min of cool time 2, cleaning constant temperature time 2 10min；Instrument sets water sample range in cuvette as 0 300mg/L；Ammonia, ammonium ion are reacted in addition reagent A, reagent B and water sample in cuvette；Chromogenic reaction is carried out in cuvette and certain temperature is kept, temperature range is 35 55 DEG C；Soaking time after heating is 100 500s；After heating stops, cooling device contrastive colours cup is cooled down, and cool time is 100 600s；Absorbance is determined in 660 700nm vicinity using photoelectric colorimetry；Discharge opeing.The present invention realizes the ammonia-nitrogen content for the grasp water quality in real time or being delayed, and determines numerical value accurate.
Description
Technical field
The invention belongs to water quality inspection technique field, more particularly to a kind of ammonia nitrogen water quality online test method.
Background technology
Aquatic environment detection work is mainly sampled with manual site, based on Laboratory Instruments analysis, although in laboratory point
Analysis means are complete, but test in laboratory is present that Monitoring frequency is low, sampling error big, detection data are scattered, can not react in time
The defect of pollution variety.Cause the maintenance of equipment hardly possible, operation cost height, implementation flexible in wired data acquisition equipment connected mode
Spend low problem.
The content of the invention
The invention aims to solve above-mentioned technical problem, and a kind of ammonia nitrogen water quality online test method is provided, from
And the ammonia-nitrogen content for the grasp water quality in real time or being delayed is realized, determine numerical value accurate.In order to achieve the above object, the technology of the present invention
Scheme is as follows：
Ammonia nitrogen water quality online test method, comprises the following steps：
S1, tests preparation：Before test, instrument suitable testing conditions and metering system are determined；
S2, is cleaned first：Cleaned in cuvette, set cleaning temperature as 30-60 DEG C, clean cool time 2-
10min, cleaning constant temperature time 2-10min；
S3, enters water sample：Instrument sets water sample range in cuvette as 0-300mg/L；
S4, enters reagent：Ammonia, ammonium ion are reacted in addition reagent A, reagent B and water sample in cuvette；
S5, heated constant temperature：Chromogenic reaction is carried out in cuvette and certain temperature is kept, temperature range is 35-55 DEG C.Plus
Soaking time after heat is 100-500s；
S6, cooling and standings：After heating stops, cooling device contrastive colours cup is cooled down, and cool time is 100-600s；
S7, quantitative analysis：Absorbance is determined in 660-700nm vicinity using photoelectric colorimetry, according to absorbance and ammonia
Linear relationship between nitrogen concentration value carries out quantitative analysis to the ammonia nitrogen in water sample；
S8, discharge opeing：Last cleaning will be carried out after fluid removal in cuvette, with the step of cleaning first.
Specifically, the metering system described in step S1 includes：Circulation measurement, specified time measurement, long-range control at equal intervals
System measurement and manually control measurement.
Specifically, the reagent sucked in step S4 by peristaltic pump negative pressure in reagent cup is in cuvette, reagent cup and pump
There is air cushioning area between pipe.
Specifically, being provided with photoelectric liquid level sensor in the cuvette.
Specifically, reagent A is sodium nitroprussiate in step S4, reagent B is salicylate and hypochlorite ion's solution.
Compared with prior art, the beneficial effect of ammonia nitrogen water quality online test method of the present invention is mainly reflected in：Utilize nothing
The data acquisition equipment connected mode of line, determines whether remote job when measuring preparation, can take water sample on the spot in real time
Mode, in real time or delay grasp water quality ammonia-nitrogen content.Cleaned first, enter water sample, enter reagent, it is heated constant temperature, cold
Under static, quantitative analysis, the circulate operation of discharge opeing, the numerical value for determining ammonia nitrogen water quality is accurate, implements flexibility ratio height, Monitoring frequency
Height, sampling error is small, in detection data set, and detection data are quick on the draw.
Embodiment
Clear, complete description will be carried out to the technical scheme in the embodiment of the present invention below, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.
Embodiment：
The present embodiment is ammonia nitrogen water quality online test method, and water quality to be detected can be carried out when measuring by instrument
Circulation measurement at equal intervals, instrument carries out standby interval of time after a testing process, and test next time is done automatically and is prepared；Or
Person specifies time measurement, and instrument reaches the predetermined time, and testing process of progress is finished automatically；Remote control is measured, at instrument
When long-range measuring state, short circuit relay input interface, artificial triggering or tactile from outside input by relay input interface
Signal, instrument start completion testing process is run to finishing；Control measurement is that instrument is in manually operated control shape manually
State.Before measuring, suitable test condition is selected, the metering system of selection instrument is measurement preparation.
This method is further comprising the steps of：Clean first；Using scavenger specially clean cuvette, set cleaning temperature as
30-60 DEG C, clean cool time 2-10min, cleaning constant temperature time 2-10min.
Enter water sample：Instrument sets the range of cuvette as 0-300mg/L.When test value is exceeded, instrument can auto-alarm-signal keying device.
Enter reagent：The reagent sucked by peristaltic pump negative pressure in reagent cup in cuvette, reagent cup and pump housing flexible pipe it
Between there is air cushioning area, it is to avoid the corrosion of pump line.The accurate meter of reagent is realized by photoelectric liquid level sensor in cuvette
Amount, it is to avoid error in dipping caused by flexible pipe abrasion.The optional sodium nitroprussiate of reagent A, the optional salicylates of reagent B and hypochlorite from
Sub- solution.Under conditions of sodium nitroprussiate presence, the ammonia, ammonium ion and the salicylate that dissociate in water sample and hypochlorite ion's reaction
Generate blue compound.
Heated constant temperature：Chromogenic reaction is carried out in cuvette and certain temperature is kept, temperature range is 35-55 DEG C.Heating
Soaking time afterwards is 100-500s.
Cooling and standings：After heating stops, cooling device is opened cuvette and cooled down, and optional fan is blowed, cooling
Time is 100-600s.Colour developing and colorimetric are the components of integration, it is to avoid aqueous sample stream is quoted into extra test mistake after colour developing
Difference.
Quantitative analysis：Absorbance is determined in 660-700nm vicinity using photoelectric colorimetry；It is dense with ammonia nitrogen according to absorbance
Linear relationship between angle value carries out quantitative analysis to the ammonia nitrogen in water sample.Measure after absorption values, looked into by absorption values
Standard working curve is ask, the content of ammonia nitrogen is calculated.The numeric data of analysis is shown on the screen of instrument.
Discharge opeing：Last cleaning will be carried out after fluid removal in cuvette, with the step of cleaning first.
The present embodiment utilizes wireless data acquisition equipment connected mode, and long-range work is determined whether when measuring preparation
Industry, the mode of water sample can be taken on the spot in real time, the ammonia-nitrogen content of timely or delay grasp water quality.Clean first, intake
Sample, enter reagent, heated constant temperature, cool down static, quantitative analysis, under the circulate operation of discharge opeing, the numerical value for determining ammonia nitrogen water quality is accurate,
Implement flexibility ratio high, Monitoring frequency is high, sampling error is small, in detection data set, detect data real time reaction.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not
On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention
Enclose.
Claims (5)
1. ammonia nitrogen water quality online test method, it is characterised in that comprise the following steps：
S1, tests preparation：Before test, instrument suitable testing conditions and metering system are determined；
S2, is cleaned first：Cleaned in cuvette, set cleaning temperature as 30-60 DEG C, clean cool time 2-10min, clearly
Wash constant temperature time 2-10min；
S3, enters water sample：Instrument sets water sample range in cuvette as 0-300mg/L；
S4, enters reagent：Ammonia, ammonium ion are reacted in addition reagent A, reagent B and water sample in cuvette；
S5, heated constant temperature：Chromogenic reaction is carried out in cuvette and certain temperature is kept, temperature range is 35-55 DEG C.After heating
Soaking time be 100-500s；
S6, cooling and standings：After heating stops, cooling device contrastive colours cup is cooled down, and cool time is 100-600s；
S7, quantitative analysis：Absorbance is determined in 660-700nm vicinity using photoelectric colorimetry, it is dense with ammonia nitrogen according to absorbance
Linear relationship between angle value carries out quantitative analysis to the ammonia nitrogen in water sample；
S8, discharge opeing：Last cleaning will be carried out after fluid removal in cuvette, with the step of cleaning first.
2. ammonia nitrogen water quality online test method according to claim 1, it is characterised in that：Survey described in the step S1
Amount mode includes：Circulation measurement, specified time measurement, remote control measurement and control measurement manually at equal intervals.
3. ammonia nitrogen water quality online test method according to claim 1, it is characterised in that：By wriggling in the step S4
There is air cushioning area between reagent cup and pump housing flexible pipe in cuvette in the reagent in pump negative pressure suction reagent cup.
4. ammonia nitrogen water quality online test method according to claim 3, it is characterised in that：Photoelectricity is provided with the cuvette
Liquid level sensor.
5. ammonia nitrogen water quality online test method according to claim 1, it is characterised in that：Reagent A is in the step S4
Sodium nitroprussiate, reagent B is salicylate and hypochlorite ion's solution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710266510.7A CN107064127A (en) | 2017-04-21 | 2017-04-21 | Ammonia nitrogen water quality online test method |
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| CN201710266510.7A CN107064127A (en) | 2017-04-21 | 2017-04-21 | Ammonia nitrogen water quality online test method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283137A (en) * | 2018-09-30 | 2019-01-29 | 宁波万泽微测环境科技股份有限公司 | A kind of ammonia nitrogen in-line analyzer |
| CN112444487A (en) * | 2020-10-13 | 2021-03-05 | 南京南瑞水利水电科技有限公司 | Water quality multi-parameter analysis method and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936978A (en) * | 2009-07-02 | 2011-01-05 | 杭州慕迪科技有限公司 | Method for on-line measurement of ammonia nitrogen content in water by recycling same reagent |
| CN201740756U (en) * | 2010-03-08 | 2011-02-09 | 华北电力科学研究院有限责任公司 | On-line ammonia nitrogen monitoring system |
| CN103048481A (en) * | 2013-01-17 | 2013-04-17 | 北京吉天仪器有限公司 | Automatic analyzer for detecting ammonia nitrogen in environmental water and method for detecting ammonia nitrogen in environmental water |
| CN105277535A (en) * | 2015-02-05 | 2016-01-27 | 温州医科大学 | On-site rapid detection method for ammonia nitrogen in water and capable of eliminating reagent blank effects |
| CN105987903A (en) * | 2015-03-03 | 2016-10-05 | 温州医科大学 | On-site quick detection kit of ammonia nitrogen in water and preparation method |
| CN106092939A (en) * | 2016-08-26 | 2016-11-09 | 淮安自来水有限公司 | Ammonia nitrogen salicylate spectrophotometric method for quick in water |
| CN106442487A (en) * | 2016-08-25 | 2017-02-22 | 深圳市绿恩环保技术有限公司 | Online ammonia nitrogen monitor |
-
2017
- 2017-04-21 CN CN201710266510.7A patent/CN107064127A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936978A (en) * | 2009-07-02 | 2011-01-05 | 杭州慕迪科技有限公司 | Method for on-line measurement of ammonia nitrogen content in water by recycling same reagent |
| CN201740756U (en) * | 2010-03-08 | 2011-02-09 | 华北电力科学研究院有限责任公司 | On-line ammonia nitrogen monitoring system |
| CN103048481A (en) * | 2013-01-17 | 2013-04-17 | 北京吉天仪器有限公司 | Automatic analyzer for detecting ammonia nitrogen in environmental water and method for detecting ammonia nitrogen in environmental water |
| CN105277535A (en) * | 2015-02-05 | 2016-01-27 | 温州医科大学 | On-site rapid detection method for ammonia nitrogen in water and capable of eliminating reagent blank effects |
| CN105987903A (en) * | 2015-03-03 | 2016-10-05 | 温州医科大学 | On-site quick detection kit of ammonia nitrogen in water and preparation method |
| CN106442487A (en) * | 2016-08-25 | 2017-02-22 | 深圳市绿恩环保技术有限公司 | Online ammonia nitrogen monitor |
| CN106092939A (en) * | 2016-08-26 | 2016-11-09 | 淮安自来水有限公司 | Ammonia nitrogen salicylate spectrophotometric method for quick in water |
Non-Patent Citations (1)
| Title |
|---|
| 中国环境监测总站编: "《环境监测方法标准实用手册 第一册 水监测方法》", 31 January 2013 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283137A (en) * | 2018-09-30 | 2019-01-29 | 宁波万泽微测环境科技股份有限公司 | A kind of ammonia nitrogen in-line analyzer |
| CN112444487A (en) * | 2020-10-13 | 2021-03-05 | 南京南瑞水利水电科技有限公司 | Water quality multi-parameter analysis method and system |
| CN112444487B (en) * | 2020-10-13 | 2023-02-21 | 南京南瑞水利水电科技有限公司 | Water quality multi-parameter analysis method and system |
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Application publication date: 20170818 |