CN1782711A - On-line automatic detecting/monitoring water sample distributor for environment water sample - Google Patents
On-line automatic detecting/monitoring water sample distributor for environment water sample Download PDFInfo
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- CN1782711A CN1782711A CN 200410096176 CN200410096176A CN1782711A CN 1782711 A CN1782711 A CN 1782711A CN 200410096176 CN200410096176 CN 200410096176 CN 200410096176 A CN200410096176 A CN 200410096176A CN 1782711 A CN1782711 A CN 1782711A
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Abstract
The water sample distributor for automatic on-line environment water sample detecting/monitoring includes: one casing with five solenoid valves, including three ones with one end connected to a peristaltic pump via pipeline and the other end connected to water sample pond via pipeline, and two other ones with one end connected to an enriching column via pipeline and the other end connected to waste liquid pond and flowing pond via pipeline; one flowing pond with detector; and one programming main controller with repeated circulation program to control the solenoid valves for circulation to realize automatic water sample distribution. The present invention is automatic, and has high distribution efficiency, stable performance, convenient use, low cost, wide application range and other advantages.
Description
Invention field
The invention belongs to the technical measurement field of environmental water sample, the water sample divider that is used for on-line automatic detecting/monitoring water sample that uses in particularly a kind of environmental water sample.
Background technology
Along with the develop rapidly of global process of industrialization and the rapid increase of population, going from bad to worse of environment caused the great attention of countries in the world.Water is as one of animal, plant and human essential condition of depending on for existence, and along with industry, the development of agricultural production and the growth of mankind's activity, ambient water quality worsens day by day.In order effectively to control the trend that water environment goes from bad to worse, various countries have carried out further revision and enforcement to the water quality environment quality standard, and various countries are also more and more higher to the requirement of quality of water environment monitoring simultaneously.Influence the shortcoming of measurement result thereby the environmental water sample on-line monitoring can overcome changing fast such as the water quality that causes because of gas exchange, chemical reaction and biological metabolism of off-line sample analysis, and caused that people extensively pay attention to.As far back as developed countries such as the U.S. in 1970 and Japan surface water such as river, lake are carried out the automatic on-line monitoring, simultaneously the works liquor of city and enterprise has also been carried out the automatic on-line monitoring.In China in order to realize national environmental protection " Ninth Five-Year Plan and long-range objectives through the year 2010 "; an urgent demand is in gross contamination emission control implementation process; the monitoring technology of increasing water quality level adopts pollutant online automatic monitor device, and pollution source are implemented the total amount on-line monitoring.
In environmental monitoring, the development of instrument and the progressive crucial effects that plays.With regard to Domestic Environment monitoring present situation, the extraction of reasonable collection, preservation and the pollutant to be measured of water sample, separation, concentrate, method for monitoring and analyzing such as quantitative measurement has much room for improvement and strengthen, especially the monitoring of organic contaminant, with gap is bigger, be badly in need of the integrated monitoring instrument that exploitation can be used for sampling, enrichment, separation, evaluation and the analysis of organic contaminant to technical merit from mensuration project, instrument and equipment abroad.
During on-line automatic detecting/monitoring water sample, the distribution of water sample sample is one of technology of fundamental sum most critical in the whole automatic water quality monitoring system, the switching that their good operation guarantees each pipeline be connected, make other working cell such as sample pretreatment unit, analytic unit, control module etc. of monitoring system become an organic whole.The instrument with sample distribution function that sell present home market mostly is external imported product greatly, and all as one of integrated component of a whole set of monitoring system, as the online water quality monitoring system of French Chemline, many species of Germany MFB water purification monitor, the automatic hydrophone system of Germany's Event triggered, U.S. Yi Sike (ISCO) company 6712 series of samples instrument, full-scale portable water quality sampling instrument of American I 36-6712 and the automatic sampling instrument of American I SCO company 3700 type waste water etc., these instruments not only price are higher, can't with the supporting use of homemade monitoring instrument, be difficult to repair once damaging, thereby limited its application greatly.The water quality monitoring instrument of comparative maturity utilization sample distribution technique has the EW-2100 type dry method COD of sewage on-line monitoring system of Beijing East-West Electronic Technology Institute development, the water environment automatic water quality monitoring system of Beijing Water Conservancy Automation Inst.'s development etc. in the production domesticization commodity.Domestic scientific research institution such as Xi'an Communications University, Zhejiang University has also added the research ranks of water quality monitoring instrument, but traditional six-way valve, eight logical valve or multi-functional switching valves have been adopted in the switching of the distribution of water sample and pipeline mostly in these achievements in research, thereby cause automaticity not high, stability is not strong, and precision of measurement is relatively poor.For this reason, a kind of automaticity height, stability is strong, moderate, applicability is extensive, and suitable China's national situation, the water sample divider that is used for on-line automatic detecting/monitoring water sample will have broad application prospects.
Summary of the invention
The object of the present invention is to provide the water sample divider of the on-line automatic detecting/monitoring of a kind of environmental water sample; This divider is by the guidance panel input parameter and carry out the state demonstration, can carry out the timing ON/OFF to solenoid valve respectively, reaches unmanned operation automatically continuously, can link to each other with computing machine in the sample assigning process, accomplishes visual and robotization; Easily and propulsion system, water sample pretreatment unit, automatic flushing device and analytic unit integrated; One-piece construction is solid and reliable, is convenient to handling and loading and maintenance.
Technical scheme of the present invention is as follows:
The water sample divider of the on-line automatic detecting/monitoring of environmental water sample provided by the invention comprises:
One cabinet (9);
Be arranged on first solenoid valve (1), second solenoid valve (2), the 3rd solenoid valve (3), the 4th solenoid valve (4) and the 5th solenoid valve (5) in the cabinet; One end of described first solenoid valve (1), second solenoid valve (2) and the 3rd solenoid valve (3) links to each other with peristaltic pump (6) by pipeline respectively, and the other end is connected with water sample pool (11), service sink (22) and eluent pool (33) by pipeline respectively; One end of described the 4th solenoid valve 4 and the 5th solenoid valve 5 links to each other with enriching column (7) by pipeline respectively, and the other end is connected with waste liquid pool (44) and flow cell (55) by pipeline respectively; Be placed with fluorescent optical sensor (8) in the flow cell (55); And
By following from a) to c) the program repeat loop program control the program master controller 10 that each solenoid valve opens/cuts out; Described from a) to c) program be:
A) the program master controller is at first controlled first solenoid valve 1 and 4 unlatchings of the 4th solenoid valve, and second solenoid valve 2, the 3rd solenoid valve 3 and the 5th solenoid valve 5 are closed; Water sample in the sample cell 11 is by peristaltic pump 6 enriching column 7 of flowing through, and the surplus water sample flow to waste liquid pool 44 by the 4th solenoid valve 4;
B) the program master controller is controlled second solenoid valve 2 and 4 unlatchings of the 4th solenoid valve again, and first solenoid valve 1, the 3rd solenoid valve (3) and the 5th solenoid valve 5 are closed; Cleaning fluid in the service sink 22 is by peristaltic pump 6 enriching column 7 of flowing through, the impurity on the flush away enriching column 7, and impurity flow to waste liquid pool 44 by the 4th solenoid valve 4;
C) the program master controller is controlled the 3rd solenoid valve 3 and 5 unlatchings of the 5th solenoid valve again, and first solenoid valve 1, second solenoid valve 2 and the 4th solenoid valve 4 are closed; Eluent in the eluent pool 33 washes away the pollutant to be measured of absorption on the enriching column 7 by peristaltic pump 6 enriching column 7 of flowing through, and pollutant to be measured flow to flow cell 55 by the 5th solenoid valve 5;
Described enriching column 7 is the quartz ampoule enriching column, fills macroporous absorbent resin in its quartz ampoule.The flow through flow velocity of enriching column 7 of described water sample is 2.0-3.5ml/min.Described wash liquid stream is 1.5-4.5ml/min through the flow velocity of enriching column 7.Described eluent stream is 2.5-4.5ml/min through the flow velocity of enriching column 7.Described pipeline is silicone tube, polyfluortetraethylene pipe, polystyrene tube or polyethylene pipe.
The power switch of described program master controller and guidance panel are arranged on the front panel of cabinet (9); Its guidance panel has been provided with function key and the numerical key that drum technology is made, in order to carrying out the parameter input; Also be provided with the pilot lamp of power supply, time countdown and each solenoid valve unlatching/closed condition on its guidance panel.
The water sample divider of the on-line automatic detecting/monitoring of environmental water sample provided by the invention, the long 330mm of its complete machine size * wide 245mm * high 166mm; Power switch and guidance panel all are positioned at the cabinet homonymy; Three function keys and 10 numeric keys are arranged on the guidance panel, and button all through playing drum technology, can carry out the parameter input; Also be equipped with power supply indication, service valve indication and time countdown indication on the guidance panel, so that the operator understands its duty; Five solenoid valves place cabinet inside, are undertaken by program main controller controls solenoid valve ON/OFF and circulation, and sample can carry out online distribution through solenoid valve; Distribution duct can be selected silicone tube, polyfluortetraethylene pipe, polystyrene tube, polyethylene pipe etc., selects wide.
The anti-high load capacity of this instrument, sample frequency height, stable performance, automation function are strong, simple to operate, can be integrated with sampling apparatus, propulsion system, water sample pretreatment unit, automatic flushing device and analytic unit very easily, be particularly suitable as water quality monitoring system, as boat-carrying portable, robotization walk to navigate water distribution unit in the monitoring system, for online environment monitoring system integrated provides strong support.
This distribution controller distributes instrument to compare advantage with existing sample: the periodicity ON/OFF of programmed control valve and circulation are carried out, the automaticity height, the allocative efficiency height, stable performance, be easy to carry, with low cost, not only be used in the monitoring of wire loop border, also can supply universities and colleges, scientific research institutions to carry out laboratory experiment, thereby have broad application prospects.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is cabinet of the present invention and the synoptic diagram that is arranged on each solenoid valve in the cabinet;
Wherein: first solenoid valve, 1 second solenoid valve 2 the 3rd solenoid valve 3
The 4th solenoid valve 4 the 5th solenoid valve 5 peristaltic pumps 6
Enriching column 7 fluorescent optical sensors 8 sample cells 11
Clean liquid pool 22 eluent pools 33 waste liquid pools 44
Embodiment
Further describe the present invention below in conjunction with drawings and Examples.
Present embodiment is for using the water sample divider of the on-line automatic detecting/monitoring of environmental water sample of the present invention, the fluorescence organic contaminant in the online detection river:
At first, the pipeline 111 that is connected with first solenoid valve 1 in the water sample divider cabinet 9 of the present invention is connected with sample cell 11; The pipeline 222 that is connected with second solenoid valve 2 is connected with service sink 22; The pipeline 333 that is connected with the 3rd solenoid valve 3 is connected with elution pool 33; The pipeline 444 that is connected with the 4th solenoid valve 4 is connected with waste liquid pool 44; The pipeline 555 that is connected with the 5th solenoid valve 5 is connected with flow cell 55; The other end of first solenoid valve 1, second solenoid valve 2 and the 3rd solenoid valve 3 is connected with peristaltic pump 6 by pipeline respectively; With the 4th solenoid valve 4 and the 5th solenoid valve 5 the other end be connected with enriching column 7 by pipeline respectively;
Open or close by each solenoid valve of following programmed control with program master controller 10 again:
A) the program master controller is at first controlled first solenoid valve 1 and 4 unlatchings of the 4th solenoid valve, and second solenoid valve 2, the 3rd solenoid valve 3 and the 5th solenoid valve 5 are closed; Water sample in the sample cell 11 is by peristaltic pump 6 enriching column 7 of flowing through, and the surplus water sample flow to waste liquid pool 44 by the 4th solenoid valve 4;
B) the program master controller is controlled second solenoid valve 2 and 4 unlatchings of the 4th solenoid valve again, and first solenoid valve 1, the 3rd solenoid valve (3) and the 5th solenoid valve 5 are closed; Cleaning fluid in the service sink 22 is by peristaltic pump 6 enriching column 7 of flowing through, the impurity on the flush away enriching column 7, and impurity flow to waste liquid pool 44 by the 4th solenoid valve 4;
C) the program master controller is controlled the 3rd solenoid valve 3 and 5 unlatchings of the 5th solenoid valve again, and first solenoid valve 1, second solenoid valve 2 and the 4th solenoid valve 4 are closed; Eluent in the eluent pool 33 washes away the pollutant to be measured of absorption on the enriching column 7 by peristaltic pump 6 enriching column 7 of flowing through, and pollutant to be measured flow to flow cell 55 by the 5th solenoid valve 5;
Pollutant to be measured enters the fluorescent optical sensor 8 that is placed in the flow cell 55, and 8 pairs of pollutants to be measured of fluorescent optical sensor detect or monitor;
Each solenoid cycles of program main controller controls repeats above-mentioned a) to c) controlled step, just realized the on-line automatic detecting/monitoring of environmental water sample.
Enriching column 7 is the quartz ampoule enriching column in the present embodiment, fills macroporous absorbent resin, external diameter 1cm, internal diameter 0.8cm, long 5cm in its quartz ampoule.The flow through flow velocity of enriching column 7 of water sample is 2.0ml/min, process duration 120 seconds.
(V: aqueous solution V), the flow velocity of the enriching column 7 of flowing through is 1.5ml/min to described cleaning fluid in order to contain 20% acetonitrile.
(V: aqueous solution V), the flow velocity of the enriching column 7 of flowing through are 2.5ml/min to described eluent, process duration 100 seconds in order to contain 50% acetonitrile.
Described pipeline is silicone tube, polyfluortetraethylene pipe, polystyrene tube or polyethylene pipe.
Present embodiment is for using the water sample divider of the on-line automatic detecting/monitoring of environmental water sample of the present invention, the toxic heavy metal ion in the online detection river:
At first, the pipeline 111 that is connected with first solenoid valve 1 in the water sample divider cabinet 9 of the present invention is connected with sample cell 11; The pipeline 222 that is connected with second solenoid valve 2 is connected with service sink 22; The pipeline 333 that is connected with the 3rd solenoid valve 3 is connected with elution pool 33; The pipeline 444 that is connected with the 4th solenoid valve 4 is connected with waste liquid pool 44; The pipeline 555 that is connected with the 5th solenoid valve 5 is connected with flow cell 55; The other end of first solenoid valve 1, second solenoid valve 2 and the 3rd solenoid valve 3 is connected with peristaltic pump 6 by pipeline respectively; With the 4th solenoid valve 4 and the 5th solenoid valve 5 the other end be connected with enriching column 7 by pipeline respectively;
Open or close by each solenoid valve of following sequential control with the program master controller again:
A) the program master controller is at first controlled first solenoid valve 1 and 4 unlatchings of the 4th solenoid valve, and second solenoid valve 2, the 3rd solenoid valve 3 and the 5th solenoid valve 5 are closed; Water sample in the sample cell 11 is by peristaltic pump 6 enriching column 7 of flowing through, and the surplus water sample flow to waste liquid pool 44 by the 4th solenoid valve 4;
B) the program master controller is controlled second solenoid valve 2 and 4 unlatchings of the 4th solenoid valve again, and first solenoid valve 1, the 3rd solenoid valve (3) and the 5th solenoid valve 5 are closed; Cleaning fluid in the service sink 22 is by peristaltic pump 6 enriching column 7 of flowing through, the impurity on the flush away enriching column 7, and impurity flow to waste liquid pool 44 by the 4th solenoid valve 4;
C) the program master controller is controlled the 3rd solenoid valve 3 and 5 unlatchings of the 5th solenoid valve again, and first solenoid valve 1, second solenoid valve 2 and the 4th solenoid valve 4 are closed; Eluent in the eluent pool 33 washes away the pollutant to be measured of absorption on the enriching column 7 by peristaltic pump 6 enriching column 7 of flowing through, and pollutant to be measured flow to flow cell 55 by the 5th solenoid valve 5;
Pollutant to be measured enters atomic absorption spectrophotometer (AAS) 8, and 8 pairs of pollutants to be measured of atomic absorption spectrophotometer (AAS) detect or monitor;
Each solenoid cycles of main controller controls repeats above-mentioned a) to c) controlled step, just realized the on-line automatic detecting/monitoring of environmental water sample.
Enriching column 7 is the quartz ampoule enriching column in the present embodiment, fills ion chelating resin, external diameter 1cm, internal diameter 0.8cm, long 5cm in its quartz ampoule.The flow through flow velocity of enriching column 7 of water sample is 2.5ml/min, process duration 150 seconds.
Described cleaning fluid is a pure water, and the flow velocity of the enriching column 7 of flowing through is 2.5ml/min.
Described eluent is the aqueous hydrochloric acid solution of 0.1moL/L, and the flow velocity of the enriching column 7 of flowing through is 2.5ml/min, process duration 100 seconds.
Described pipeline is silicone tube, polyfluortetraethylene pipe, polystyrene tube or polyethylene pipe.
Present embodiment is for using the water sample divider of the on-line automatic detecting/monitoring of environmental water sample of the present invention, and ON-LINE SEPARATION also detects palycyclic aromatic in the river:
At first, the pipeline 111 that is connected with first solenoid valve 1 in the water sample divider cabinet 9 of the present invention is connected with sample cell 11; The pipeline 222 that is connected with second solenoid valve 2 is connected with service sink 22; The pipeline 333 that is connected with the 3rd solenoid valve 3 is connected with elution pool 33; The pipeline 444 that is connected with the 4th solenoid valve 4 is connected with waste liquid pool 44; The pipeline 555 that is connected with the 5th solenoid valve 5 is connected with flow cell 55; The other end of first solenoid valve 1, second solenoid valve 2 and the 3rd solenoid valve 3 is connected with peristaltic pump 6 by pipeline respectively; With the 4th solenoid valve 4 and the 5th solenoid valve 5 the other end be connected with enriching column 7 by pipeline respectively;
Open or close by each solenoid valve of following sequential control with the program master controller again:
A) the program master controller is at first controlled first solenoid valve 1 and 4 unlatchings of the 4th solenoid valve, and second solenoid valve 2, the 3rd solenoid valve 3 and the 5th solenoid valve 5 are closed; Water sample in the sample cell 11 is by peristaltic pump 6 enriching column 7 of flowing through, and the surplus water sample flow to waste liquid pool 44 by the 4th solenoid valve 4;
B) the program master controller is controlled second solenoid valve 2 and 4 unlatchings of the 4th solenoid valve again, and first solenoid valve 1, the 3rd solenoid valve (3) and the 5th solenoid valve 5 are closed; Cleaning fluid in the service sink 22 is by peristaltic pump 6 enriching column 7 of flowing through, the impurity on the flush away enriching column 7, and impurity flow to waste liquid pool 44 by the 4th solenoid valve 4;
C) the program master controller is controlled the 3rd solenoid valve 3 and 5 unlatchings of the 5th solenoid valve again, and first solenoid valve 1, second solenoid valve 2 and the 4th solenoid valve 4 are closed; Eluent in the eluent pool 33 washes away the pollutant to be measured of absorption on the enriching column 7 by peristaltic pump 6 enriching column 7 of flowing through, and pollutant to be measured flow to flow cell 55 by the 5th solenoid valve 5;
Pollutant to be measured enters HPLC-UV to be separated, and separates the back and with UV-detector pollutant to be measured is detected or monitors;
Each solenoid cycles of main controller controls repeats above-mentioned a) to c) controlled step, just realized the on-line automatic detecting/monitoring of environmental water sample.
Enriching column 7 is the quartz ampoule enriching column in the present embodiment, fills C-18 bonded silica gel, external diameter 1cm, internal diameter 0.8cm, long 5cm in its quartz ampoule.The flow through flow velocity of enriching column 7 of water sample is 3.5ml/min, process duration 200 seconds.
(V: aqueous solution V), the flow velocity of the enriching column 7 of flowing through is 4.0ml/min to described cleaning fluid in order to contain 30% acetonitrile.
(V: aqueous solution V), the flow velocity of the enriching column 7 of flowing through are 4.5ml/min to described eluent, process duration 100 seconds in order to contain 50% methyl alcohol.
Described pipeline is silicone tube, polyfluortetraethylene pipe, polystyrene tube or polyethylene pipe.
In fact, the flow through flow velocity of enriching column 7 of water sample stream, wash liquid stream is through the flow velocity of enriching column 7, and eluent stream can not do to limit (flow velocity in the foregoing description is the preferable selection of embodiment) through the flow velocity of enriching column 7, can be grasped voluntarily by operating personnel as required, this belongs to the technology that those of ordinary skill in the art should grasp.
Claims (7)
1, the water sample divider of the on-line automatic detecting/monitoring of a kind of environmental water sample is characterized in that, comprising:
One cabinet;
Be arranged on first solenoid valve (1), second solenoid valve (2), the 3rd solenoid valve (3), the 4th solenoid valve (4) and the 5th solenoid valve (5) in the cabinet; One end of described first solenoid valve (1), second solenoid valve (2) and the 3rd solenoid valve (3) links to each other with peristaltic pump (6) by pipeline respectively, and the other end is connected with water sample pool (11), service sink (22) and eluent pool (33) by pipeline respectively; One end of described the 4th solenoid valve 4 and the 5th solenoid valve 5 links to each other with enriching column (7) by pipeline respectively, and the other end is connected with waste liquid pool (44) and flow cell (55) by pipeline respectively; Be placed with detecting device (8) in the flow cell (55); And
By following from a) to c) the program repeat loop program control the program master controller (10) of each solenoid valve unlatching/closing motion; Described from a) to c) program be:
A) the program master controller is at first controlled first solenoid valve (1) and the 4th solenoid valve (4) unlatching, and second solenoid valve (2), the 3rd solenoid valve (3) and the 5th solenoid valve (5) are closed; Water sample in the sample cell (11) is by peristaltic pump (6) enriching column (7) of flowing through, and the surplus water sample flow to waste liquid pool (44) by the 4th solenoid valve (4); Close
B) the program master controller is controlled second solenoid valve (2) and the 4th solenoid valve (4) unlatching again, and first solenoid valve (1), the 3rd solenoid valve (3) and the 5th solenoid valve (5) are closed; Cleaning fluid in the service sink (22) is by peristaltic pump (6) enriching column (7) of flowing through, the impurity on the flush away enriching column (7), and impurity flow to waste liquid pool (44) by the 4th solenoid valve (4);
C) the program master controller is controlled the 3rd solenoid valve (3) and the 5th solenoid valve (5) unlatching again, and first solenoid valve (1), second solenoid valve (2) and the 4th solenoid valve (4) are closed; Eluent in the eluent pool (33) washes away the pollutant to be measured that enriching column (7) is gone up absorption by peristaltic pump (6) enriching column (7) of flowing through, and pollutant to be measured flow to flow cell (55) by the 5th solenoid valve (5).
2, by the water sample divider of the on-line automatic detecting/monitoring of the described environmental water sample of claim 1, it is characterized in that described enriching column (7) is the quartz ampoule enriching column, fill macroporous absorbent resin in its quartz ampoule.
By the water sample divider of the on-line automatic detecting/monitoring of the described environmental water sample of claim 1, it is characterized in that 3, the flow through flow velocity of enriching column (7) of water sample is 2.0-3.5ml/min.
4, by the water sample divider of the on-line automatic detecting/monitoring of the described environmental water sample of claim 1, it is characterized in that described wash liquid stream is 1.5-4.0ml/min through the flow velocity of enriching column (7).
5, by the water sample divider of the on-line automatic detecting/monitoring of the described environmental water sample of claim 1, it is characterized in that described eluent stream is 2.5-4.5ml/min through the flow velocity of enriching column (7).
6, by the water sample divider of the on-line automatic detecting/monitoring of the described environmental water sample of claim 1, it is characterized in that described pipeline is silicone tube, polyfluortetraethylene pipe, polystyrene tube or polyethylene pipe.
7, by the water sample divider of the on-line automatic detecting/monitoring of the described environmental water sample of claim 1, it is characterized in that the power switch of described program master controller and guidance panel are arranged on the front panel of cabinet (9); Its guidance panel has been provided with function key and the numerical key that drum technology is made, in order to carrying out the parameter input; Also be provided with the pilot lamp of power supply, time countdown and each solenoid valve unlatching/closed condition on its guidance panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100961768A CN100559185C (en) | 2004-11-30 | 2004-11-30 | The water sample divider of the on-line automatic detecting/monitoring of environmental water sample |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100961768A CN100559185C (en) | 2004-11-30 | 2004-11-30 | The water sample divider of the on-line automatic detecting/monitoring of environmental water sample |
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| CN1782711A true CN1782711A (en) | 2006-06-07 |
| CN100559185C CN100559185C (en) | 2009-11-11 |
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| CNB2004100961768A Expired - Fee Related CN100559185C (en) | 2004-11-30 | 2004-11-30 | The water sample divider of the on-line automatic detecting/monitoring of environmental water sample |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793839B (en) * | 2010-02-08 | 2011-11-23 | 江苏德林环保技术有限公司 | Colorimetric detection method and device of sugar content of water |
| CN106289912A (en) * | 2016-09-07 | 2017-01-04 | 中国广州分析测试中心 | A kind of pretreating device for water on-line monitoring |
| CN114636800A (en) * | 2022-04-22 | 2022-06-17 | 中山大学 | Water quality monitoring device and monitoring method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2163381Y (en) * | 1993-07-21 | 1994-04-27 | 山东大学 | Enriching column water quality detecting automatic sampler |
| CN2163382Y (en) * | 1993-07-21 | 1994-04-27 | 山东大学 | Portable enriching column water quality detecting automatic sampler |
| CN2779406Y (en) * | 2004-12-10 | 2006-05-10 | 中国科学院生态环境研究中心 | A water sample distribution unit |
-
2004
- 2004-11-30 CN CNB2004100961768A patent/CN100559185C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101793839B (en) * | 2010-02-08 | 2011-11-23 | 江苏德林环保技术有限公司 | Colorimetric detection method and device of sugar content of water |
| CN106289912A (en) * | 2016-09-07 | 2017-01-04 | 中国广州分析测试中心 | A kind of pretreating device for water on-line monitoring |
| CN106289912B (en) * | 2016-09-07 | 2023-07-07 | 广东省科学院测试分析研究所(中国广州分析测试中心) | Pretreatment device for online monitoring of water |
| CN114636800A (en) * | 2022-04-22 | 2022-06-17 | 中山大学 | Water quality monitoring device and monitoring method thereof |
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| Publication number | Publication date |
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| CN100559185C (en) | 2009-11-11 |
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