CN204287209U - Detect the portable detector of surface water heavy metal - Google Patents
Detect the portable detector of surface water heavy metal Download PDFInfo
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- CN204287209U CN204287209U CN201420465568.6U CN201420465568U CN204287209U CN 204287209 U CN204287209 U CN 204287209U CN 201420465568 U CN201420465568 U CN 201420465568U CN 204287209 U CN204287209 U CN 204287209U
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- analysis cell
- surface water
- heavy metal
- portable detector
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Abstract
The utility model discloses a kind of portable detector detecting surface water heavy metal, this detector comprises analysis cell and main frame, and main frame is connected by connecting line with analysis cell; Be provided with three in analysis cell and place working electrode, contrast electrode and the accommodation hole to electrode respectively, and analysis cell inner bottom part is provided with the analyzer cup placed and detect solution, working electrode, contrast electrode and the one end to electrode are immersed in the detection solution of analyzer cup respectively, and working electrode, contrast electrode are connected with connecting line respectively with to the other end of electrode; Analysis cell is also built-in with puddler and motor, drives and is connected in the detection solution that one end of puddler is soaked in analyzer cup with motor.Analysis cell and main frame combine by the utility model, and both volumes are little, without the need to this instrument is placed in surface water during detection, directly get surface water to be placed in analyzer cup and can to detect, reach volume little, be convenient for carrying, reproducible, the simple to operate and effect that Measuring Time is short.
Description
Technical field
The utility model relates to ambient water quality detection field, particularly relates to a kind of portable detector detecting surface water heavy metal.
Background technology
The pollution of heavy metal to water body is more and more serious, in water quality heavy metal analysis field, usual employing large-scale instrument, as heavy metal electrochemical analyser, ICP-AES, ICP-MS etc., the price of these equipment is up to hundreds of thousands or millions of, and complicated operation, the personnel of specialty are needed to detect, if therefore ordinary populace wants the information understanding surface water heavy metal pollution, can only censorship, this mode is not only expensive, and sense cycle is also very long.For above-mentioned problem, occurred polarograph on the market, although polarograph solves expensive problem, polarograph can only be measured in the lab, in addition, larger, the complex operation of the hanging mercury electrode environmental pollution of polarograph, the problem such as difficult in maintenance.
Therefore, the use of polarograph also cannot meet the demand in market.
Utility model content
For the weak point existed in above-mentioned technology, the utility model provide a kind of volume little, be convenient for carrying, reproducible, the simple to operate and portable detector of the detection surface water heavy metal that Measuring Time is short, this detector can arrive outdoor and measure whenever and wherever possible, meets the security of measuring water quality when emergency episode occurs in time.
For achieving the above object, the utility model provides a kind of portable detector detecting surface water heavy metal, and comprise analysis cell and main frame, described main frame is connected by connecting line with analysis cell; Be provided with three in described analysis cell and place working electrode, contrast electrode and the accommodation hole to electrode respectively, and described analysis cell inner bottom part is provided with the analyzer cup placed and detect solution, described working electrode, contrast electrode and the one end to electrode are immersed in the detection solution of analyzer cup respectively, and described working electrode, contrast electrode are connected with connecting line respectively with to the other end of electrode; Described analysis cell is also built-in with puddler and motor, drives and is connected in the detection solution that one end of described puddler is soaked in analyzer cup with motor; The surface of described working electrode is provided with film plating layer.
Wherein, described analysis cell comprises analysis cell upper cover affixed successively, analysis cell main body and analysis cell lower cover; The middle part of described analysis cell main body offers is convenient to disassemble and assemble work electrode, contrast electrode and the district of windowing to electrode.
Wherein, the connecting portion that described puddler comprises upper end power part, centre is direct rod shape and bottom are the mixing part of plate-like; This power part drives with motor and is connected, and described power part to be driven with mixing part by connecting portion and is connected.
Wherein, described mixing part is made up of multiple integrated stirring piece in convex shape, and forms the arc-shaped edges in concaving between adjacent two stirring pieces.
Wherein, described main frame comprises keypad, display screen, main case and circuit board, and described circuit board to be placed in main case and to be electrically connected with keypad and display screen respectively.
Wherein, described keypad is provided with on & off switch and stirs button, and described stirring button is electrically connected with motor, and described on & off switch is electrically connected with display screen, connecting line respectively.
Wherein, the side of described main case is provided with the USB interface and power interface that are electrically connected with circuit board.
The beneficial effects of the utility model are: compared with prior art, the portable detector of the detection surface water heavy metal that the utility model provides, set up motor and puddler, the detection solution in analyzer cup can be stirred uniformly and effectively in testing process, make metallic ion analyzed in solution fully can be enriched in the surface of working electrode, make the heavy metal concentration result degree of accuracy that detects higher, accuracy is high, and sensitivity is very high; Simultaneously, analysis cell and main frame combine by this detector, and both volumes are little, without the need to this instrument is placed in surface water during detection, directly get surface water to be placed in analyzer cup and can to detect, this detector volume is little, be convenient for carrying, reproducible, simple to operate and Measuring Time is short, outdoor can be arrived and measure whenever and wherever possible, meet the security of measuring water quality when emergency episode occurs in time.The utility model have reasonable in design, simple to operate, carry convenient, the feature such as sensitivity is very high and cost is low.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the portable detector of detection surface water heavy metal of the present utility model;
Fig. 2 is the schematic enlarged-scale view of puddler in Fig. 1;
Fig. 3 is the process flow diagram of the utility model detection method.
Main element symbol description is as follows:
1, analysis cell 2, main frame
3, connecting line 4, working electrode
5, contrast electrode 6, to electrode
7, analyzer cup 8, puddler
11, analysis cell upper cover 12, analysis cell main body
13, analysis cell lower cover 21, keypad
22, display screen 23, main case
81, power part 82, connecting portion
83, mixing part 121, district of windowing
211, on & off switch 212, stirring button
231, USB interface 232, power interface
831, stirring piece
Embodiment
In order to more clearly state the utility model, below in conjunction with accompanying drawing, the utility model is further described.
Refer to Fig. 1, the portable detector of the detection surface water heavy metal that the utility model provides, comprise analysis cell 1 and main frame 2, main frame 2 is connected by connecting line 3 with analysis cell 1; Be provided with three in analysis cell 1 and place working electrode 4, contrast electrode 5 and the accommodation hole to electrode 6 respectively, and analysis cell 1 inner bottom part is provided with the analyzer cup 7 placed and detect solution, working electrode 4, contrast electrode 5 and the one end to electrode 6 are immersed in the detection solution of analyzer cup 7 respectively, and working electrode 4, contrast electrode 5 are connected with connecting line 3 respectively with to the other end of electrode 6; Analysis cell 1 is also built-in with puddler 8 and motor (not shown), drives and is connected in the detection solution that one end of puddler 8 is soaked in analyzer cup 7 with motor; The surface of working electrode 4 is provided with film plating layer (not shown).In this detector reaction mainly on film plating layer, in testing process adsorption of metal ions in the solution to film plating layer, then carry out enrichment solubilizing reaction and redox reaction.
Compared to the situation of prior art, the portable detector of the detection surface water heavy metal that the utility model provides, set up motor and puddler 8, the detection solution in analyzer cup 7 can be stirred uniformly and effectively in testing process, make metallic ion analyzed in solution fully can be enriched in the surface of working electrode 4, make the heavy metal concentration result degree of accuracy that detects higher, accuracy is high, and sensitivity is very high; Simultaneously, both analysis cell 1 and main frame 2 combine by this detector, and both volumes are little, without the need to this instrument is placed in surface water during detection, directly get surface water to be placed in analyzer cup 7 and can to detect, this detector volume is little, be convenient for carrying, reproducible, simple to operate and Measuring Time is short, outdoor can be arrived and measure whenever and wherever possible, meet the security of measuring water quality when emergency episode occurs in time.The utility model have reasonable in design, simple to operate, carry convenient, the feature such as sensitivity is very high and cost is low.
In the present embodiment, analysis cell 1 comprises analysis cell upper cover 11 affixed successively, analysis cell main body 12 and analysis cell lower cover 13; The middle part of analysis cell main body 12 offers is convenient to disassemble and assemble work electrode 4, contrast electrode 5 and the district 121 of windowing to electrode 6.By the effect in district 121 of windowing, can when this detector be assembled by needs, by working electrode 4, contrast electrode 5 and can be plugged in corresponding accommodation hole through this district 121 of windowing electrode 6, if when needing take out these three electrodes or change, directly take out in district 121 of windowing.Due to working electrode 4, contrast electrode 5 be detect in solution the parts commonly used to these three electrodes of electrode 6, the frequency of dismounting is larger, to window the design in district 121, avoid the inconvenience brought from this three electrodes of analysis cell 1 top dismounting, and can directly analyzer cup 7 be taken out from this district 121 of windowing or put into, greatly save the time; In addition, can detect the change of solution in Real Time Observation three electrodes and analyzer cup 7 by district 121 of windowing, it is extremely convenient to operate.
Please consult Fig. 2 further, the connecting portion 82 that puddler 8 comprises upper end power part 81, centre is direct rod shape and bottom are the mixing part 83 of plate-like; This power part 81 drives with motor and is connected, and power part 81 is driven with mixing part 83 by connecting portion 82 and is connected.Mixing part 83 is made up of multiple integrated stirring piece 831 in convex shape, and forms the arc-shaped edges in concaving between adjacent two stirring pieces 831.This stirring piece 831 in the design of certain angle relative to connecting portion 82, reduces stirring resistance, improves mixing effect, accelerate detection speed, improve detection efficiency.
In the present embodiment, main frame 2 comprises keypad 21, display screen 22, main case 23 and circuit board (not shown), and circuit board to be placed in main case 23 and to be electrically connected with keypad 21 and display screen 22 respectively.Keypad 21 is provided with on & off switch 211 and stirs button 212, and stir button 212 and be electrically connected with motor, on & off switch 211 is electrically connected with display screen 22, connecting line 3 respectively.The side of main case 23 is provided with the USB interface 231 and power interface 232 that are electrically connected with circuit board.This main frame 2 is charged by USB interface 231 or power interface 232, and detect terminate after by USB interface 231 by data upload to mobile terminal.
Principle of work of the present utility model is as follows:
Main frame 2 in earlier stage, is first energized by setup test, the on & off switch 211 then pushed button in plate 21, and the screen display of display screen 22 goes out measurement menu; Main frame 2 is plugged connecting line 3 realize being connected with analysis cell 1, take out working electrode 4 respectively, to electrode 6 and contrast electrode 5, then pre-service is carried out to working electrode 4 and contrast electrode 5, realize being connected with connecting line 3 in the accommodation hole putting in analysis cell 1 of afterwards these three electrode pairs being answered; When start is measured, working electrode 4 now and both positive and negative polarity electrode 6 is just equivalent in power supply, contrast electrode 5 is just equivalent to zero line, and main key point occurs on working electrode 4; The detection solution purchased is put into analyzer cup 7, stirring button 212 on click keys plate 21, select in a menu to measure, the reaction now occurred in solution is: enrichment reduction reaction: reduction potential is put on working electrode 4, when working electrode 4 electromotive force exceedes evolution or deposition potential, metallic ion (Mn+) analyzed in solution is reduced to metallic atom, is enriched in working electrode 4 surface, as follows:
Mn+ + ne→M
Electromotive force application time is longer, restores the metal being enriched in electrode surface more; And then carrying out stripping oxidation reaction: the electromotive force increasing working electrode 4 with fixing speed, by the metallic atom order stripping be enriched on working electrode 4, is oxidized to metallic ion.For given electrolyte solution and electrode, often kind of metal has the specific electromotive force that following oxidation reaction occurs:
M→Mn+ + ne
The electronics that this process discharges forms electric current, by measuring the size of this electric current, and by itself and corresponding electromotive force curve plotting figure, is " voltammogram ".Often kind of metal has specific stripping oxidation reaction voltage, metal species is identified according to the potential value that stripping oxidation produces, and produce stripping oxidation potential difference by dissimilar metals, measure various metals simultaneously, measure its electric current and record corresponding electromotive force thus calculate concentration of metal ions.
Above-mentioned this detection method step is summed up as two steps: 1, Electrolysis enrich 2, Electrochemical Stripping, flow process as shown in Figure 3:
Detection method shown in Fig. 3 is anodic stripping voltammetry, and its analytic process comprises two stages: first stage is " Electrolysis enrich ", namely under certain potentials, tested metallic ion electrolysis is separated out on electrode.Second stage is " Electrochemical Stripping ", is about to the metal be originally deposited on electrode and is oxidized to ionic condition again and gets back in solution.In electric potential scanning process, record i-E volt-ampere curve, the corresponding current peak of each metallic ion, peak height is directly proportional to by the concentration of measured ion, carries out quantitative test accordingly.Electrolysis enrich: i.e. Electrolysis enrich process can be stoichiometric, by measured matter in test solution 100% ground electro-deposition on electrode; Also can be non-stoichiometric, namely with certain percentage, by measured object, from test solution, electro-deposition be out.Stoichiometry electro-deposition has higher sensitivity, but needs longer electrolysis time.And although nonstoichiometry electro-deposition sensitivity is lower, the time can be shortened; General employing nonstoichiometry Electrolysis enrich.This anodic stripping voltammetry it galvanochemistry Enrichment and determination is organically combined, stripping peak current size and measured object concentration proportional, this is the basis of quantitative test; Simultaneously according to the spike potential of different metal, qualitative analysis can be carried out.
Advantage of the present utility model is:
1) motor and puddler 8 is set up, the detection solution in analyzer cup 7 can be stirred uniformly and effectively in testing process, make metallic ion analyzed in solution fully can be enriched in the surface of working electrode 4, make the heavy metal concentration result degree of accuracy that detects higher, accuracy is high, and sensitivity is very high;
2) both analysis cell 1 and main frame 2 combine by this detector, and both volumes are little, without the need to this instrument is placed in surface water during detection, directly get surface water to be placed in analyzer cup 7 and can to detect, this detector volume is little, be convenient for carrying, reproducible, simple to operate and Measuring Time is short, outdoor can be arrived measure whenever and wherever possible, meet the security of measuring water quality when emergency episode occurs in time;
3) by the effect in district 121 of windowing, can when this detector be assembled by needs, by working electrode 4, contrast electrode 5 and can be plugged in corresponding accommodation hole through this district 121 of windowing electrode 6, if when needing take out these three electrodes or change, directly take out in district 121 of windowing; Avoid the inconvenience brought from this three electrodes of analysis cell 1 top dismounting;
4) can directly analyzer cup 7 be taken out from this district 121 of windowing or put into, greatly save the time;
5) can detect the change of solution in Real Time Observation three electrodes and analyzer cup 7 by district 121 of windowing, it is extremely convenient to operate;
6) this stirring piece 831 is relative to connecting portion 82 in the design of certain angle, reduces stirring resistance, improves mixing effect, accelerate detection speed, improve detection efficiency.
Be only several specific embodiment of the present utility model above, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (7)
1. detect a portable detector for surface water heavy metal, it is characterized in that, comprise analysis cell and main frame, described main frame is connected by connecting line with analysis cell; Be provided with three in described analysis cell and place working electrode, contrast electrode and the accommodation hole to electrode respectively, and described analysis cell inner bottom part is provided with the analyzer cup placed and detect solution, described working electrode, contrast electrode and the one end to electrode are immersed in the detection solution of analyzer cup respectively, and described working electrode, contrast electrode are connected with connecting line respectively with to the other end of electrode; Described analysis cell is also built-in with puddler and motor, drives and is connected in the detection solution that one end of described puddler is soaked in analyzer cup with motor; The surface of described working electrode is provided with film plating layer.
2. the portable detector of detection surface water heavy metal according to claim 1, is characterized in that, described analysis cell comprises analysis cell upper cover affixed successively, analysis cell main body and analysis cell lower cover; The middle part of described analysis cell main body offers is convenient to disassemble and assemble work electrode, contrast electrode and the district of windowing to electrode.
3. the portable detector of detection surface water heavy metal according to claim 1, is characterized in that, the connecting portion that described puddler comprises upper end power part, centre is direct rod shape and bottom are the mixing part of plate-like; This power part drives with motor and is connected, and described power part to be driven with mixing part by connecting portion and is connected.
4. the portable detector of detection surface water heavy metal according to claim 3, is characterized in that, described mixing part is made up of multiple integrated stirring piece in convex shape, and forms the arc-shaped edges in concaving between adjacent two stirring pieces.
5. the portable detector of detection surface water heavy metal according to claim 1, it is characterized in that, described main frame comprises keypad, display screen, main case and circuit board, and described circuit board to be placed in main case and to be electrically connected with keypad and display screen respectively.
6. the portable detector of detection surface water heavy metal according to claim 5, is characterized in that, described keypad is provided with on & off switch and stirs button, and described stirring button is electrically connected with motor, and described on & off switch is electrically connected with display screen, connecting line respectively.
7. the portable detector of detection surface water heavy metal according to claim 5, is characterized in that, the side of described main case is provided with the USB interface and power interface that are electrically connected with circuit board.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420465568.6U CN204287209U (en) | 2014-11-13 | 2014-11-13 | Detect the portable detector of surface water heavy metal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420465568.6U CN204287209U (en) | 2014-11-13 | 2014-11-13 | Detect the portable detector of surface water heavy metal |
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| CN204287209U true CN204287209U (en) | 2015-04-22 |
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| CN201420465568.6U Expired - Fee Related CN204287209U (en) | 2014-11-13 | 2014-11-13 | Detect the portable detector of surface water heavy metal |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950264A (en) * | 2017-05-17 | 2017-07-14 | 武汉中科志康生物科技有限公司 | A kind of Portable heavy metal detector and its detection method |
| WO2018118836A1 (en) * | 2016-12-19 | 2018-06-28 | Analog Devices Inc. | Self-calibrated heavy metal detector |
| CN108318559A (en) * | 2018-04-23 | 2018-07-24 | 厦门斯坦道科学仪器股份有限公司 | A kind of heavy metal analysis plug module, heavy metal detection system and heavy metal analysis flow based on electrochemistry |
| CN110108851A (en) * | 2019-04-16 | 2019-08-09 | 湖南城市学院 | A kind of portable heavy metal pollution detection device |
-
2014
- 2014-11-13 CN CN201420465568.6U patent/CN204287209U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018118836A1 (en) * | 2016-12-19 | 2018-06-28 | Analog Devices Inc. | Self-calibrated heavy metal detector |
| US10746696B2 (en) | 2016-12-19 | 2020-08-18 | Analog Devices, Inc. | Self-calibrated heavy metal detector |
| CN106950264A (en) * | 2017-05-17 | 2017-07-14 | 武汉中科志康生物科技有限公司 | A kind of Portable heavy metal detector and its detection method |
| CN108318559A (en) * | 2018-04-23 | 2018-07-24 | 厦门斯坦道科学仪器股份有限公司 | A kind of heavy metal analysis plug module, heavy metal detection system and heavy metal analysis flow based on electrochemistry |
| CN108318559B (en) * | 2018-04-23 | 2023-10-13 | 厦门斯坦道科学仪器股份有限公司 | Electrochemical-based heavy metal detection plugging module, heavy metal detection system and heavy metal detection flow |
| CN110108851A (en) * | 2019-04-16 | 2019-08-09 | 湖南城市学院 | A kind of portable heavy metal pollution detection device |
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Legal Events
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151113 |
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| EXPY | Termination of patent right or utility model |