CN205352945U - Agricultural product drug residue synthesizes toxicity on -line measuring device - Google Patents

Agricultural product drug residue synthesizes toxicity on -line measuring device Download PDF

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Publication number
CN205352945U
CN205352945U CN201620071534.8U CN201620071534U CN205352945U CN 205352945 U CN205352945 U CN 205352945U CN 201620071534 U CN201620071534 U CN 201620071534U CN 205352945 U CN205352945 U CN 205352945U
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way valve
container
agricultural product
flat tube
drug residue
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CN201620071534.8U
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Chinese (zh)
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陈广姣
洪陵成
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Hohai University HHU
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Hohai University HHU
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Abstract

The utility model discloses an agricultural product drug residue synthesizes toxicity on -line measuring device, include processing unit, sampling unit, detecting element in advance. Processing unit includes the semi -permeable membrane filter in advance, sampling unit includes multi -ported valve, three -way valve, ration ring, liquid level detection ware and peristaltic pump, detecting element includes three -way valve, black fixeing jacket, solenoid valve reaction tank, LED lamp, photosensitive detector and peristaltic pump. The device passes through the peristaltic pump according to certain operating sequence through the ration sample, mixed light shines and realizes with detecting that agricultural product drug residue synthesizes the automated inspection of toxicity, can improve and utilize photobacteria method survey agricultural product drug residue to synthesize the lowest limit of toxicity through setting up in advance processing unit and LED lamp, the apparatus is simple in structure, therefore, the carrier wave prepaid electric energy meter is low in cost, the utility model provides a multi -target detection system of automotive anti -collision radar. The multi -target detection system comprises a radio -frequency transmitting/receiving part, a data processing part and a power supply part, the radio -frequency transmitting/receiving part comprises a radar sensor and a medium frequency signal processing module, the data processing part comprises an analog -to -digital and digital -to -analog conversion module and a central control processing module FPGA, and the radar sensor is a radar receiver in K band with a voltage -controlled oscillator and is provided with an individual sending channel and two I/Q receiving channels. The multi -target detection system of the automotive anti -collision radar is capable of alternatively emitting two triangular waves with different modulation periods, collecting echo wave data, and effectively excluding fake targets based on a corresponding algorithm so as to improve the detection accuracy of multiple moving targets in an environment of strong noises. A hardware system structure is simplified and is easy to achieve, higher sensitivity and lower product cost have, can improve and detect the lowest limit and realize self - cleaning, contact reaction and testing process.

Description

A kind of agricultural product drug residue comprehensive toxicity on-line measuring device
Technical field
This utility model belongs to poisonous substance detecting device field, is specifically related to a kind of agricultural product drug residue comprehensive toxicity on-line measuring device.
Background technology
The edible safety sex chromosome mosaicism of agricultural product has become as the key factor currently affecting social stability and agricultural sustainable development, therefore agricultural product is produced and the process of circulation carries out security monitoring detection and is extremely necessary.The reason causing venomous injurant confrontation pollution of agricultural products has a lot, sprays insecticide in agricultural product production process, also has the production environment pollution factors such as water, air, soil.
Traditional detection method is analyzed together based on gas phase, liquid chromatograph and spectrophotometer etc., these methods can detect the contaminant trace species in sample, there is detection and limit low, degree of accuracy high, but there is complicated operation, time length, problem that cost is high, especially it is not suitable for as the field monitoring in the food production process of circulation, also polluter cannot be carried out BIOLOGICAL EVALUATIONIn.Some traditional method for quick based on biochemistry, immunology, molecular biology principle typically just detect for known pollution of agricultural products thing, then mostly helpless for non-principal component.Agricultural product need detection kind and component is a lot of and substrate is complicated.The primary assay sensitivity of some the agricultural product poisonous and harmfuls the unknowns having built up is low and operability is not strong.The acute and chronic toxicity test of such as rat, if the detection not only cycle for agricultural product drug residue comprehensive toxicity is relatively long, and testing cost is also high.
For agricultural product drug residue complicated component, pollutant levels are low, and therefore this area is in the urgent need to a kind of fast and convenient on-line measuring device, have higher sensitivity, a feature such as easy and simple to handle, operating cost is low.
Summary of the invention
In order to solve the problems referred to above, this utility model provides a kind of agricultural product drug residue comprehensive toxicity on-line measuring device, and this apparatus structure is simple, can produce at agricultural product and carry out Site Detection in the process of circulation, automaticity is high, can improve detection bottom line by pretreatment unit.
A kind of agricultural product drug residue comprehensive toxicity on-line measuring device, this device includes pretreatment unit, sampling unit and detection unit;
Described pretreatment unit includes semi-permeable membrane filter, the lid that semi-permeable membrane filter includes container, is placed on container, semipermeable membrane and flat tube, described lid is provided with a through hole, internal tank is located at by described flat tube, and the upper end of flat tube is connected with the through hole on lid, the lower end closed of flat tube, semipermeable membrane is located on the inwall of flat tube, is provided with neutral oil in described semipermeable membrane;
Described sampling unit includes multiple-way valve, three-way valve, quantitative loop, liquid level detector, peristaltic pump, the container equipped with NaCl buffer solution, the container equipped with distilled water, the container equipped with luminescent bacteria suspension and the container equipped with algae suspension, and described multiple-way valve is the rotatable handle valve comprising a hub-interface and 6 peripheral interfaces arranged side by side;The hub-interface of described multiple-way valve is connected with an interface on a three-way valve by quantitative loop, on described three-way valve, remaining two interfaces are connected with a peristaltic pump and waste liquid pool respectively by pipeline, and described liquid level detector is located on the pipeline between three-way valve and a peristaltic pump;Upper 5 peripheral interface of described multiple-way valve by pipeline respectively with the flat tube of osmosis membrane filter, equipped with NaCl buffer solution container, equipped with distilled water container, equipped with luminescent bacteria suspension container and equipped with algae suspension container corresponding be connected;
Described detection unit includes No. two three-way valve, black fixed jacket, electromagnetic valve, reaction tank, LED, photosensitive detector and No. two peristaltic pumps, three interfaces on described No. two three-way valve are connected by pipeline a peripheral interface remaining with on multiple-way valve, No. two peristaltic pumps and waste liquid pool respectively, described No. two peristaltic pumps are connected with reaction tank by pipeline, and described electromagnetic valve is located on No. two pipelines between peristaltic pump and reaction tank;Described LED is located in reaction tank, and described black fixed jacket is wrapped in reaction tank surface, and black fixed jacket is provided with detection hole, and described photosensitive detector detects liquid luminous intensity in reaction tank through detection hole.
Described flat tube is Low Density Polyethylene flat tube.
The thickness of described semipermeable membrane is less than 100 μm.
Described neutral oil is triglyceride.
Described semipermeable membrane is regenerated cellulose film.
Beneficial effect: agricultural product drug residue comprehensive toxicity on-line measuring device disclosed in this utility model, pass through quantitative sampling by peristaltic pump according to certain operation order, mixed light shines and detects the automatic detection realizing agricultural product drug residue comprehensive toxicity, the lowest limit utilizing Luminous bacteria to measure agricultural product drug residue comprehensive toxicity can be improved by arranging pretreatment unit and LED, automatization can be realized, easy and simple to handle, manual request is low;This apparatus structure is simple, with low cost, be easily achieved, it is possible to achieve the detection to low concentration, highly sensitive, it is possible to improve the detection lowest limit realizing automatically clean, haptoreaction and the process of detection.
Accompanying drawing explanation
Fig. 1 is the flow chart of agricultural product drug residue comprehensive toxicity on-line measuring device;
Fig. 2 is the structural representation of semi-permeable membrane filter;
In figure, 1 is quantitative loop, 2 is multiple-way valve, interface centered by 20, 21 is No. 1 peripheral interface, 22 No. 2 peripheral interfaces, 23 is No. 3 peripheral interfaces, 24 is No. 4 peripheral interfaces, 25 is No. 5 peripheral interfaces, 26 is No. 6 peripheral interfaces, 3 is a three-way valve, 31 is No. 1 interface on a three-way valve, 32 is No. 2 interfaces on a three-way valve, 33 is No. 3 interfaces on a three-way valve, 4 is No. two three-way valve, 41 is No. 1 interface on No. two three-way valve, 42 is No. 2 interfaces on No. two three-way valve, 43 is No. 3 interfaces on No. two three-way valve, 5 is liquid level detector, 6 is a peristaltic pump, 7 is No. two peristaltic pumps, 8 is electromagnetic valve, 9 is reaction tank, 10 is semi-permeable membrane filter, 11 is black fixed jacket, 12 is LED, 13 is photosensitive detector, 14 is the container equipped with NaCl buffer solution, 15 is equipped with distilled water container, 16 is equipped with luminescent bacteria suspension container, 17 is equipped with algae suspension container, 18 is waste liquid pool.
Detailed description of the invention
Further illustrate this utility model below in conjunction with accompanying drawing and quickly detect structure and the work process of Practice for Pesticide Residue in Agricultural Products comprehensive toxicity on-line equipment.
Such as Fig. 1, a kind of agricultural product drug residue comprehensive toxicity on-line measuring device, this device includes pretreatment unit, sampling unit and detection unit;
Wherein such as Fig. 2, pretreatment unit includes semi-permeable membrane filter 10, the lid that semi-permeable membrane filter includes container, is placed on container, semipermeable membrane and flat tube, lid is provided with a through hole, and internal tank is located at by flat tube, and the upper end of flat tube is connected with the through hole on lid, the lower end closed of flat tube, semipermeable membrane is located on the inwall of flat tube, is provided with neutral oil in the semipermeable membrane of flat tube;
Sampling unit includes quantitative loop 1,2, three-way valve 3 of multiple-way valve, 5, peristaltic pump 6 of liquid level detector, the container 14 equipped with NaCl buffer solution, the container 15 equipped with distilled water, the container 16 equipped with luminescent bacteria suspension and the container 17 equipped with algae suspension, multiple-way valve 2 be comprise a hub-interface 20 and numbering be followed successively by 21 ~ 26 the rotatable handle valve of 6 peripheral interfaces arranged side by side;Number three-way valve 3 is provided with three interfaces of 31 ~ 33.The hub-interface 20 of multiple-way valve 2 is connected with No. 2 interfaces 32 on a three-way valve 3 by quantitative loop 1, and No. 3 interfaces 33 of a three-way valve 3 are connected with a peristaltic pump 6, and No. 1 interface 31 of a three-way valve 3 is connected with waste liquid pool 18.Liquid level detector 5 is located on the pipeline between a three-way valve 3 and a peristaltic pump 6;The peripheral interface 22 ~ 26 of multiple-way valve 2 respectively with the container 16 equipped with luminescent bacteria suspension, the container 17 equipped with algae suspension, equipped with the container 14 of NaCl buffer solution, the flat tube of osmosis membrane filter be connected equipped with the container 15 of distilled water is respectively corresponding, the peripheral interface 21 of multiple-way valve 2 is connected with detecting unit.Hub-interface 20 can pass through to select to be connected to pivoted arm interface any with peripheral interface 21 ~ 26, and peristaltic pump 6 end connects air.
Detection unit includes No. two three-way valve 4, black fixed jacket 11, electromagnetic valve 8, reaction tank 9, LED 12, photosensitive detector 13 and No. two peristaltic pumps 7, No. 1 interface 41 of No. two three-way valve 4 connects No. 21 peripheral interfaces of multiple-way valve 2, No. 2 interfaces 42 and No. 3 interfaces 43 on No. two three-way valve 4 connect with No. two peristaltic pumps 7 and waste liquid pool 18 respectively through pipeline, No. two peristaltic pumps 7 are connected with reaction tank 9 by pipeline, and electromagnetic valve 8 is located on the pipeline between No. two peristaltic pumps 7 and reaction tank 9;LED 12 is located on the top in reaction tank 9, and black fixed jacket 11 is wrapped in reaction tank 9 surface, and black fixed jacket 11 is provided with detection hole, and photosensitive detector 13 detects liquid luminous intensity in reaction tank through detection hole.
Liquid level detector selects the CR18-8DN liquid level detector that Autonic company produces, photosensitive detector selects the model that shore pine photonic propulsion commerce and trade (China) company limited produces to be R3377 photosensitive detector, reaction tank can select glass container, and size is determined according to response magnitude.Flat tube is Low Density Polyethylene (LDPE) flat tube.The thickness of semipermeable membrane is less than 100 μm.Semipermeable membrane is regenerated cellulose film.It is made up of the neutral oil of such as triglyceride in semipermeable membrane.Hydrophobicity organic pollution (nonpolar, low pole or middle polarity) is due to the difference of chemical potential or fugacity, and from water body or air, minimum hole by being formed due to polymer membrane molecular thermalmotion enters in film and absorbed by neutral oil.
The testing process of this utility model agricultural product drug residue comprehensive toxicity on-line measuring device is as follows:
1) being poured into by testing sample in the container of semi-permeable membrane filter 10, testing sample includes the residue of waste water and the agricultural product rinsing pesticide, hydrophobic organic pollutant is enriched with, obtains pollutant solution.
2) choosing of multiple-way valve 2 goes to No. 22 peripheral interfaces to pivoted arm, a number three-way valve 3 is adjusted to interface 32-33 position and leads to, No. two peristaltic pumps 7 rotate clockwise, luminous bacterium solution is inhaled in quantitative loop 1, when liquid level detector 5 has detected liquid, illustrates that quantitative loop has been filled with luminous bacterium solution, a number peristaltic pump 6 stops operating, a number three-way valve 3 is adjusted to interface 31-32 position and leads to, and a peristaltic pump 6 rotates counterclockwise, and luminous bacterium solution unnecessary between a peristaltic pump 6 and No. 33 interfaces of a three-way valve is discharged;Again a three-way valve 3 is adjusted to interface 32-33 to lead to, multiple-way valve 2 goes to No. 21 interfaces, a number peristaltic pump 6 rotates counterclockwise, luminous bacterium solution in quantitative loop is injected in reaction tank 9, again the pollutant solution of enrichment, NaCl buffer solution in algae suspension, flat tube are injected in reaction tank 9 according to above operational approach, electromagnetic valve 8 closes, and this testing sample sample introduction completes.
3) LED 12 is opened, and after illumination certain time, LED is closed, and after certain time, by photosensitive detector 13, the solution in reaction tank 9 is detected, draws sample luminous intensity.
4) according to above operation order, by the switching to multiple-way valve 2 interface, respectively distilled water, Nacl buffer solution, luminous bacterium solution and algae suspension are injected in reaction tank 9;Using quantitative loop 1 as a unit quantity, in each mixing pit, luminous bacterium solution and algae suspension only need to inject a unit quantity, and distilled water, pollutant solution and NaCl buffer solution are then injected separately into multiple unit quantity, until it reaches predetermined unit quantity.
5) after completing one-time detection, then need pipeline and reaction tank 9 are carried out.First No. two three-way valve 4 being adjusted to interface 42-43 position to lead to, electromagnetic valve 8 leaves, and No. two peristaltic pumps 7 rotate counterclockwise, discharge waste liquid, subsequently No. two three-way valve 4 being adjusted to interface 41-42 to lead to, a three-way valve 3 is adjusted to interface 32-33 and leads to, and multiple-way valve 2 selects and goes to No. 25 peripheral interfaces to pivoted arm, a number peristaltic pump 6 rotates counterclockwise, again multiple-way valve 2 being adjusted to 21 peripheral interfaces, a peristaltic pump 6 rotates counterclockwise, and reaction tank 9 is carried out, it is then discharged out waste liquid, completes the cleaning to whole stream.
Bioassay method utilizes photobacteria can send the aeruginous visible ray of wavelength 450-490nm under normal physiological conditions, and luminous intensity is continual and steady, when contacting with the noxious substance in determinand, bacterial luminescence intensity changes immediately, and increase luminous intensity along with the concentration of noxious substance and weaken, and the change of this luminous intensity quantitatively can be measured with a kind of sensitive photosensitive detector.Multiple noxious substance can be produced suppressed reaction by bioassay method simultaneously, and pre-treatment is simple, with low cost, highly sensitive, has manifested its advantage in field quick detection qualitative, semiquantitative.
Photobacteria is not had direct toxic action by some noxious substance (such as herbicide), and the toxic effect of algae is disturbed the photosynthesis of algae, make to put oxygen ability to reduce, photobacteria also declines therewith because of its luminous power of anoxia, thus cultured luminous bacterium solution and algae suspension can be added reaction tank and mix with testing sample, after illumination, measure the intensity variation of photobacteria.Thus utilize Luminous bacteria test agricultural product drug residue comprehensive toxicity have highly sensitive, quick, easy, cost is low, the advantages such as manual maintenance workload is little.
Being processed by the photomultiplier detector in photosensitive detector and obtain result, photomultiplier detector can carry the module that data process, and computing formula is inputted, directly calculates, and computing formula is as follows:
Measurement result represents with relative luminous intensity: relative luminous intensity=sample luminous intensity comparison luminous intensity × 100%.

Claims (5)

1. an agricultural product drug residue comprehensive toxicity on-line measuring device, it is characterised in that: this device includes pretreatment unit, sampling unit and detection unit;
Described pretreatment unit includes semi-permeable membrane filter, the lid that semi-permeable membrane filter includes container, is placed on container, semipermeable membrane and flat tube, described lid is provided with a through hole, internal tank is located at by described flat tube, and the upper end of flat tube is connected with the through hole on lid, the lower end closed of flat tube, semipermeable membrane is located on the inwall of flat tube, is provided with neutral oil in described semipermeable membrane;
Described sampling unit includes multiple-way valve, three-way valve, quantitative loop, liquid level detector, peristaltic pump, the container equipped with NaCl buffer solution, the container equipped with distilled water, the container equipped with luminescent bacteria suspension and the container equipped with algae suspension, and described multiple-way valve is the rotatable handle valve comprising a hub-interface and 6 peripheral interfaces arranged side by side;The hub-interface of described multiple-way valve is connected with an interface on a three-way valve by quantitative loop, on described three-way valve, remaining two interfaces are connected with a peristaltic pump and waste liquid pool respectively by pipeline, and described liquid level detector is located on the pipeline between three-way valve and a peristaltic pump;Upper 5 peripheral interface of described multiple-way valve by pipeline respectively with the flat tube of osmosis membrane filter, equipped with NaCl buffer solution container, equipped with distilled water container, equipped with luminescent bacteria suspension container and equipped with algae suspension container corresponding be connected;
Described detection unit includes No. two three-way valve, black fixed jacket, electromagnetic valve, reaction tank, LED, photosensitive detector and No. two peristaltic pumps, three interfaces on described No. two three-way valve are connected by pipeline a peripheral interface remaining with on multiple-way valve, No. two peristaltic pumps and waste liquid pool respectively, described No. two peristaltic pumps are connected with reaction tank by pipeline, and described electromagnetic valve is located on No. two pipelines between peristaltic pump and reaction tank;Described LED is located in reaction tank, and described black fixed jacket is wrapped in reaction tank surface, and black fixed jacket is provided with detection hole, and described photosensitive detector detects liquid luminous intensity in reaction tank through detection hole.
2. a kind of agricultural product drug residue comprehensive toxicity on-line measuring device according to claim 1, it is characterised in that: described flat tube is Low Density Polyethylene flat tube.
3. a kind of agricultural product drug residue comprehensive toxicity on-line measuring device according to claim 1, it is characterised in that: the thickness of described semipermeable membrane is less than 100 μm.
4. a kind of agricultural product drug residue comprehensive toxicity on-line measuring device according to claim 1, it is characterised in that: described neutral oil is triglyceride.
5. a kind of agricultural product drug residue comprehensive toxicity on-line measuring device according to claim 1, it is characterised in that: described semipermeable membrane is regenerated cellulose film.
CN201620071534.8U 2016-01-25 2016-01-25 Agricultural product drug residue synthesizes toxicity on -line measuring device Expired - Fee Related CN205352945U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106525506A (en) * 2016-12-13 2017-03-22 浙江微兰环境科技有限公司 System provided with double quantification rings
CN106645611A (en) * 2016-10-14 2017-05-10 武汉联宇技术股份有限公司 Fish and photogenic bacterium-based comprehensive toxicity online analyzer
CN106744626A (en) * 2016-12-13 2017-05-31 浙江微兰环境科技有限公司 A kind of quantitative loop systems of list
CN107843703A (en) * 2017-11-22 2018-03-27 江苏蓝创智能科技股份有限公司 The check system and method for calibration of water quality testing meter
CN108279230A (en) * 2018-02-02 2018-07-13 哈尔滨工业大学 A kind of micro-fluidic type water quality toxicity analysis and detection device and its determination method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106645611A (en) * 2016-10-14 2017-05-10 武汉联宇技术股份有限公司 Fish and photogenic bacterium-based comprehensive toxicity online analyzer
CN106525506A (en) * 2016-12-13 2017-03-22 浙江微兰环境科技有限公司 System provided with double quantification rings
CN106744626A (en) * 2016-12-13 2017-05-31 浙江微兰环境科技有限公司 A kind of quantitative loop systems of list
CN107843703A (en) * 2017-11-22 2018-03-27 江苏蓝创智能科技股份有限公司 The check system and method for calibration of water quality testing meter
CN107843703B (en) * 2017-11-22 2023-12-05 江苏蓝创智能科技股份有限公司 Verification system and verification method of water quality detector
CN108279230A (en) * 2018-02-02 2018-07-13 哈尔滨工业大学 A kind of micro-fluidic type water quality toxicity analysis and detection device and its determination method
CN108279230B (en) * 2018-02-02 2020-06-09 哈尔滨工业大学 Micro-flow control type water quality toxicity analysis and detection device and detection and analysis method thereof

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