CN202837226U - Portable cadmium and lead detector - Google Patents
Portable cadmium and lead detector Download PDFInfo
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- CN202837226U CN202837226U CN 201220505522 CN201220505522U CN202837226U CN 202837226 U CN202837226 U CN 202837226U CN 201220505522 CN201220505522 CN 201220505522 CN 201220505522 U CN201220505522 U CN 201220505522U CN 202837226 U CN202837226 U CN 202837226U
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Abstract
The utility model discloses a portable cadmium and lead detector. The detector comprises a detecting instrument and a printing electrode, wherein the detecting instrument comprises a shell, an operating mainboard in the shell, a liquid crystal display on the shell, operation order keys and a slot; and the printing electrode is inserted into the slot. The portable cadmium and lead detector solves the problems of troublesome steps of sample processing, electrode processing and cleaning in detection with the conventional instrument, has the advantages of convenience and rapidness for detection, small size, convenience for carrying and the like, and is capable of realizing field detection on trace cadmium and lead in water. Meanwhile, due to the adoption of the disposable printing electrode, the steps of electrode processing and cleaning are omitted, and secondary pollution of the electrode is avoided.
Description
Technical field
The utility model relates to a kind of Portable heavy metal cadmium, plumbous detector, particularly can the Site Detection Drinking Water, cadmium, the Portable heavy metal cadmium of lead content, plumbous detector in the water quality such as underground water and river.
Background technology
Cadmium (Cd), plumbous (Pb) are the heavy metal elements that human body is had serious harm.After physical environment is subject to cadmium, lead contamination, can by inrichment in vivo, enter human body by food chain, and then human body is had a negative impact.The people has drunk the water of cadmium pollution, cadmium can form the cadmium sulfoprotein in human body, reach whole body by blood, and selectively accumulate in kidney, liver, and cadmium is combined with the protein molecule of hydroxyl, amino, sulfydryl, many enzyme systems are suppressed, thereby affect the normal function of enzyme system in kidney, the liver organ.Chronic cadium poisoning can cause skeleton change, kidney hepatic lesion, also may cause anaemia etc.; Acute cadmium poisoning can make the people vomiting, stomach spasm occur, stomachache, the symptoms such as diarrhoea; Cadmium poisoning surpasses to a certain degree can cause death.People are many to bring lead into human body by modes such as breathe air, food intake and drinking purpose of tap waters.The lead 90% that enters human body is stored in bone, 10% with mobile whole body each tissue and the organ of being distributed to of blood circulation, affect erythrocyte and brain, kidney, nervous function, after particularly the infant absorbs lead, to have and surpass 30% reservation in vivo, affect infant's growth and intelligence development, and damage the brain functions such as its cognitive function, neurobehavioral and learning and memory, severe patient causes dementia and death.This shows, cadmium, lead contamination are very big to environment and human health hazard, therefore, the detection of the water quality cadmiums such as environment and water quality, particularly potable water, underground water and rivers, lead content are had very large meaning.
Measure Determination of Trace Amount Cadmium, lead mainly contains atomic absorption spectrophotometry (AAS), inductively coupled plasma mass spectrometry (ICP-MS), atom fluorescent luminosity method (AFS) and anodic stripping voltammetry (ASV) etc., but because Atomic Absorption Spectrometer, inductivity coupled plasma mass spectrometry and atomic fluorescence spectrometer are large-scale instrument, formed by the accurate device of complexity that (as: ICP-MS is by plasma generator, spray chamber, the torch pipe, quadrupole mass spectroscope and an express passway electron multiplier form), and must be equipped with computer, gas cylinder, the external devices such as UPS, and be placed in the substantially invariable air-conditioned room of temperature and could work, equipment set is bulky, can not carry out outdoor detection operation, can only in the laboratory, use, and complicated operation, need special operating personnel just can operate, its precision of such detection system is no doubt high, stability is also better, but its huge volume, numerous and diverse auxiliary facility, harsh environment for use condition restriction the lifting of its detection efficiency.Usually in order to detect a sample; after need to carrying out a series of loaded down with trivial details preliminary works such as strange land sampling, protection, mark, sample presentation, pre-treatment; just can obtain reliable result, if any one link has gone out mistake, the detection of then must resampling; very consuming time; efficient is lower, and these products belong to expensive goods, and price does not generally wait to up to a million at hundreds of thousands; expensive, popularity rate is not high.
The market chemical heavy metal detector that powers on just has a lot, but since these instruments all the traditional three-electrode system of adapted detect, sample preparation, electrode process and cleaning step more loaded down with trivial details.
The utility model content
Technical problem to be solved in the utility model provide a kind of simple to operate, detect fast Portable heavy metal cadmium, plumbous detector.
For achieving the above object, the utility model is taked following technical scheme: Portable heavy metal cadmium, plumbous detector comprise detecting instrument and print electrode;
Described detecting instrument comprises work mainboard and the LCDs on the housing, the operational order button in housing, the housing and is used for inserting the slot that prints electrode;
Described work mainboard comprises control module, digital potentiostatic circuit, temperature detecting module and power module, and wherein said LCDs, operational order button, temperature detecting module are connected with control module with battery module and are connected;
Described printing electrode comprises substrate, is printed with carbon working electrode, carbon on the substrate to electrode and Ag/AgCl contrast electrode; And being printed with the carbon extension line of above-mentioned three electrodes at described substrate, the end of described carbon extension line also is printed on one for detection of the described carbon horizontal line that prints electrode and whether insert detecting instrument; On the carbon extension line and three electrodes substrate in addition of carbon horizontal line, three electrodes, be coated with the insulation course that insullac is printed.
In the such scheme, in order easily the test data in the detecting instrument, result to be sent to the computer storage, to analyze, described detecting instrument preferably is provided with a communication serial ports.
In the such scheme, described control module can be 51 series monolithics.
In the such scheme, the described substrate that prints electrode can be the PVC film.
In the such scheme, described printing electrode is preferably strip.
In the such scheme, described printing electrode is preferably disposable use.
The beneficial effects of the utility model are: the utility model is integrated into the function height such as electrochemical analyser and computer control, sampling, data processing, demonstration in the handheld instrument, realized the all-in-one operation, and volume is little, be easy to carry, can realize Determination of Trace Amount Cadmium and lead in the Site Detection water quality.Adopt simultaneously disposable printing electrode, saved the step that electrode is processed and cleaned, avoided the secondary pollution of electrode.
Description of drawings
Fig. 1 is the structural representation of the utility model Portable heavy metal cadmium, plumbous detector.
Fig. 2 is the structural representation that prints electrode.
Fig. 3 is the theory diagram of testing of the present utility model.
Number in the figure is: 1, detecting instrument; 2, LCDs; 3, operational order button; 4, communication serial ports; 5, battery case; 6, slot; 7, print electrode; 8, PVC film; The working end of 9, printing electrode; 10, carbon extension line; 11, carbon horizontal line; 12, carbon working electrode; 13, Ag/AgCl contrast electrode; 14, carbon is to electrode.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figure 1, Portable heavy metal cadmium, plumbous detector comprise detecting instrument 1 and print electrode 7; Wherein, detecting instrument 1 comprises that housing, housing front upper have LCDs 2, and the bottom is battery case 5.Be provided with operational order button 3 between LCDs 2 and battery case 5, be provided with in the middle of the top of housing front for print electrode 7 slot 6 of insertion, sidewall upper also is provided with a communication serial ports 4, and housing is built-in with the work mainboard.
The work mainboard comprises control module, digital potentiostatic circuit, temperature detecting module and power module; In the present embodiment, described control module is the embedded microprocessor take 51 family chips as core, the needs that can satisfy control, collection, data processing and show.Numeral potentiostatic circuit and temperature detecting module all are connected with control module, and described control module gathers the signal of digital potentiostatic circuit, and the signal that collects is processed.Temperature detecting module is Temperature Detector; Power module is to detecting instrument 1 power supply, and battery case 5 is built-in, and to be furnished with rechargeable battery be No. 5 1.2V batteries of 3 joints.
Input block is operational order button 3, and operational order button 3 is connected with control module, but open and close detecting instrument 1, and running parameter is set in LCDs 2 demonstration affirmations.LCDs 2 is output unit, and links to each other with control module, can the prompting of display instrument operational order, testing result and historical detection record.The data that control module collects can be calculated through self and directly obtain the result, show in LCDs 2, also can be connected with computing machine by the usb data line by communication serial ports 4.
Describedly print electrode 7, as shown in Figure 2: comprise substrate, be printed with carbon working electrode 12, carbon on the substrate to electrode 14 and Ag/AgCl contrast electrode 13; And being printed with the carbon extension line 10 of above-mentioned three electrodes at described substrate, the end of described carbon extension line 10 also is printed on one for detection of the described 7 carbon horizontal lines 11 that whether insert detecting instrument 1 that print electrode.When printing electrode 7 when inserting the slot 6 of detecting instruments 1, by the setting of carbon horizontal line 4, whether can check prints electrode 7 inserts detecting instrument 1, and the result that will whether insert is presented on the LCDs 2 of detecting instrument 1.7 contacts that can guarantee like this to print electrode are good, working stability.On the carbon extension line 10 and three electrodes substrate in addition of carbon horizontal line 11, three electrodes, be coated with the insulation course that insullac is printed.
The course of work: the utility model before using, the at first prewired buffer solution that makes.Described buffer solution is provided by instrument company.Then described buffer solution and river sample volume ratio are according to a certain percentage mixed and leave standstill, as liquid to be measured.
After configuring liquid to be measured, begin to detect.The power knob of Pen-down detection instrument 1 operational order button 3 at first, after the instrument initialization, plug and print electrode 7 at slot 6 places on detecting instrument 1, and after 7 the working end 9 of printing electrode splashed into a liquid to be measured, the mensuration key of pressing in the operational order button 3 began to detect.During beginning, then the temperature in the Temperature Detector elder generation testing environment is delivered to control module with temperature signal and is processed; The numeral potentiostatic circuit 7 is connected with printing electrode, numeral potentiostatic circuit 7 chemical signals that collect that will print electrode convert electric signal to, and this electric signal is delivered to control module processes, control module receives this electric signal and processes, makes analysis, control by the operational measure instruction and data acquisition instructions in the control module again by data analysis, last Stripping Currents value according to the solution to be measured that detects, cooperate algorithm to calculate the concentration of the solution that detects, after two minutes, the result is shown in described LCDs 2.Data-carrier store in the control module stores the data that detect at this moment, finishes at last testing.When the historical detection record of storage surpasses 100 times, the record data of data-carrier store automatic replacement front.For obtaining more accurately data, can discard with what cross and print electrode 7, insert again and new print electrode 7, repeated test.
Comprehensive above-described embodiment as can be known, the utility model both can have been measured separately cadmium and plumbous concentration, also can measure simultaneously cadmium, plumbous concentration, convenient test, quick, and volume is little, is convenient for carrying, and can with the computing machine connection status under, can realize on computers test by instrument test software.
Claims (6)
1. Portable heavy metal cadmium, plumbous detector is characterized in that: comprise detecting instrument (1) and print electrode (7);
Described detecting instrument (1) comprises work mainboard in the housing, housing and the LCDs (2) on the housing, operational order button (3) and the slot (6) that is used for inserting print electrode (7);
Described work mainboard comprises control module, digital potentiostatic circuit, temperature detecting module and power module, and wherein said LCDs (2), operational order button (3), temperature detecting module are connected with control module with battery module and are connected;
Described printing electrode (7) comprises substrate, is printed with carbon working electrode (12), carbon on the substrate to electrode (14) and Ag/AgCl contrast electrode (13); And being printed with the carbon extension line (10) of above-mentioned three electrodes at described substrate, the end of described carbon extension line (10) also is printed on one for detection of the described carbon horizontal line (11) that prints electrode and whether insert detecting instrument (1); On the carbon extension line (10) and three electrodes substrate in addition of carbon horizontal line (11), three electrodes, be coated with the insulation course that insullac is printed.
2. Portable heavy metal cadmium according to claim 1, plumbous detector, it is characterized in that: described detecting instrument (1) also is provided with a communication serial ports (4).
3. Portable heavy metal cadmium according to claim 1 and 2, plumbous detector, it is characterized in that: described control module is 51 series monolithics.
4. Portable heavy metal cadmium according to claim 1, plumbous detector, it is characterized in that: the substrate of described printing electrode (7) is the PVC film.
5. Portable heavy metal cadmium according to claim 1, plumbous detector is characterized in that: described printing electrode (7) is strip.
6. Portable heavy metal cadmium according to claim 1, plumbous detector is characterized in that: described printing electrode (7) is disposable use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505522 CN202837226U (en) | 2012-09-28 | 2012-09-28 | Portable cadmium and lead detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220505522 CN202837226U (en) | 2012-09-28 | 2012-09-28 | Portable cadmium and lead detector |
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| Publication Number | Publication Date |
|---|---|
| CN202837226U true CN202837226U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220505522 Expired - Fee Related CN202837226U (en) | 2012-09-28 | 2012-09-28 | Portable cadmium and lead detector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728427A (en) * | 2013-12-19 | 2014-04-16 | 谢虹 | Miniature water quality 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 |
| CN108318560A (en) * | 2018-01-19 | 2018-07-24 | 国力天（深圳）科技有限公司 | A kind of Portable microelectrode method blood detector and its detection method |
| CN113945624A (en) * | 2020-07-16 | 2022-01-18 | 武汉市农业科学院 | Portable food heavy metal detection system |
-
2012
- 2012-09-28 CN CN 201220505522 patent/CN202837226U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728427A (en) * | 2013-12-19 | 2014-04-16 | 谢虹 | Miniature water quality 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 |
| CN108318560A (en) * | 2018-01-19 | 2018-07-24 | 国力天（深圳）科技有限公司 | A kind of Portable microelectrode method blood detector and its detection method |
| CN113945624A (en) * | 2020-07-16 | 2022-01-18 | 武汉市农业科学院 | Portable food heavy metal detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |