CN109580608A - A kind of Rapid pesticide residue detection device - Google Patents

A kind of Rapid pesticide residue detection device Download PDF

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Publication number
CN109580608A
CN109580608A CN201811539242.2A CN201811539242A CN109580608A CN 109580608 A CN109580608 A CN 109580608A CN 201811539242 A CN201811539242 A CN 201811539242A CN 109580608 A CN109580608 A CN 109580608A
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elastic clip
pesticide residue
detection device
test strips
controller
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Inventor
王皓洁
刘刚
王金明
沐贤锋
任昱金
张玉春
韩青霖
徐冠桦
孙林
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Ludong University
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Ludong University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N2021/786Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour with auxiliary heating for reaction

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

The invention discloses a kind of Rapid pesticide residue detection devices, including temperature controller, time controller, connection control line, controller connection unit, elastic clip, spring, buckle composition, three sockets for placing test paper item are equipped in elastic clip end, it is separated between socket with partition, temperature sensor is installed on two intermediate plates above and below elastic clip.Pass through the interaction of elastic clip each three test paper items up and down, it is mainly used in the quick measurement of organophosphorus pesticide or carbamate pesticide residue, is the preferred instrument that the departments such as drug administration department, quality testing department, customs, inlet and outlet inspection and quarantine, market surpervision department, family or place are used for quickly detecting pesticide residue.The beneficial effects of the present invention are devices, and simple to operate, easy outside carries, using solar energy and storage battery low-voltage power supply, and measuring stability and collimation are good, can efficient, high sensitivity the pesticide residue detected in agricultural product.

Description

A kind of Rapid pesticide residue detection device
Technical field
The present invention relates to the Detection Technologies of Pesticide Residues field, specially a kind of Rapid pesticide residue detection device.
Background technique
With the people's increasingly improvement of living standard and the yearning to healthy body, good life, in people's daily life The Pesticide Residue of food is become more concerned with, country is food-safe and Environmental security is also increasingly paid attention to.It is existing in the market Having high-toxic pesticide is mainly Organophosphorus and carbamate pesticides class pesticide, and the Ministry of Public Health has just issued early in August, 2003 " to be had in vegetables The quick detection of machine phosphorus and carbamate pesticide residue amount " (GB/T 5009.199-2003) national standard method, using pair The test paper that organic phosphorus and carbamate high sensitive cholinesterase and color developing agent are made into carrys out fast detecting pesticide residue.
Now by continuous research and development, improvement and the upgrading of scientific research personnel during the last ten years, especially tackles key problems, report in succession in recent years Road is disclosed based on the improved upgrading products of national standard GB/T 5009.199-2003 method and device.The earliest China of such device A kind of structure is simple disclosed in Institute of Electronic and Information Engineering In Dongguan, UESTC in 2009 for patent of invention, is convenient for carrying Pesticide residue toxicity detection device, the detection method of the pesticide residue toxicity of the invention is simple, easy to operate, detect pesticide residue The apparatus structure of toxicity is simple, is convenient for carrying, and can be suitably used for the fast qualitative detection (CN at layman scene 101368913A, 2009.02.18, a kind of detection method and its device of pesticide residue toxicity).In the same year, there are also CN for such device 100549678C, 100500862C etc..
Shanghai Communications University in 2010 discloses a kind of quick measuring card of the detection remains of pesticide of technical field of bioengineering, packet Two layers of plastic is included, color developing agent is indoxyl acetate, and enzyme item is Drosophila melanogaster acetylcholinesterase, and detection card of the invention is suitable Wide with range, detection is sensitive, fast and convenient (CN 101693916A, 2010.04.14 detect the quick measuring card of remains of pesticide). The hair of Zhang Yinhu in 2015 discloses a kind of intelligent instrument for detecting pesticide residue through, including can be used for weighing substance weight weighing device, The pesticide after quick measuring card, analysis and the detection reacted discoloration of quick measuring card for detecting pesticide residue situation with example reaction is residual The detection device and data transmission unit for staying result are not required to manually compare the quick measuring card color after reaction, and error rate is lower, makes With more intelligent, and the automatic testing result of electronics, testing result and detection relevant information can be wirelessly transferred with bluetooth or wifi It is conducive to use (CN 104964974A, 2015.10.07, intelligent pesticide residue to other terminals to conveniently check and manage Detector).
It is how residual that Guangzhou Wan Lian Biotechnology Co., Ltd in 2016 discloses a kind of organophosphorus and N-methylcarbamate pesticides Cholinesterase immunochromatography quick measuring card, including bottom plate and capping plate are stayed, the quick measuring card is easy to operate, quick, can simultaneously quickly A variety of organophosphorus and N-methylcarbamate pesticides in test sample, sensitivity 0.008-0.987mg/kg, 3-5 minute Observation is as a result, be suitable for being used for quickly detecting the organophosphorus and N-methylcarbamate pesticides in veterinary antibiotics and environmental water sample (CN 105785021A, 2016.07.20, a kind of organophosphorus and N-methylcarbamate pesticides remain cholinesterase immunochromatography more Quick measuring card).Gloomy (Jiangsu) food safety Science and Technology Ltd. difficult to understand discloses a kind of quick measuring card for detecting pesticide residue within 2017 hundred, Including upper cover plate, lower plate, test paper place mouth, connecting component, well, test paper, display sheet and heat generating fiber surface layer pesticide Quick test device is remained, which can control temperature at 37 degrees Celsius, and the reaction speed of enzyme is most fast, effectively increases quick measuring card Detect speed (CN 106290350A, 2017.01.04, a kind of quick measuring card detecting pesticide residue).There are also other similar hairs It is bright, such as CN 104655621B, CN105044101A, CN 106353314A.
2018 hundred gloomy (Jiangsu) food safety Science and Technology Ltd.s difficult to understand disclose a kind of pesticide residue and quickly detect examination Agent box, kit body interior are equipped with measuring apparatus, reagent bottle and detection device, are equipped with grinding chamber and reaction inside detection device Room, and fixed plate is equipped between grinding chamber and reaction chamber, grinding chamber is located at the top of reaction chamber, and rotation knot is equipped with inside grinding chamber Structure can be convenient carrying kit by kit and handle, so that more convenient pair of article detects, ensure the essence of detection Degree, can be observed the effect of detection that (CN 107884524A, 2018.04.06, a kind of pesticide residue are quick in real time Detection kit).There are also CN 108079820A, CN 105203487B etc. for similar kit invention.2018 Nian Wuyuan are rushed Disclose a kind of pesticide residue detecting device, detector includes test paper slot, and be separately positioned on test paper slot light source, heating Device, digital camera and single-chip microcontroller, the signal output end of digital camera and the signal input part of single-chip microcontroller connect, single-chip microcontroller Signal output end connect with display screen, the Pesticides Testing detection system of the invention is easy to operate, quick, precision is high, at low cost And a kind of long service life (CN 108693319A, 2018.10.23, pesticide residue detecting device).Such detection device is also CN 107064126A, 107367589A etc..
Above-mentioned published product or device or presence become increasingly complex, more fining, volume is increasing, to operator Member needs to train in advance or with certain laboratory basic operation knowledge, cannot be widely used in numerous people group well Crowd, especially middle-aged and the old group.Some apparatus are also more complicated, operation have certain difficulty, be easy to cause damage or Human error.For the above unfavorable factor, this research team is that applicant discloses a kind of simple pesticide residues with Ludong University Quick test device, including fingerstall, enzyme and display sheet, fingerstall are divided into two fingerstall of different sizes, have one on each fingerstall Recessed annular design, by the interaction of enzyme and display sheet, is mainly used in organophosphorus pesticide or carbamates agriculture The remaining quick measurement of medicine (CN 108398426A, 2018.08.14, a kind of simple rapid detection for pesticide residue device and its application). The present invention is the upgraded product of CN 108398426A, is a kind of Rapid pesticide residue detection device, reduces manual operation Error, utilize temperature controller and time controller to improve the accuracy of test result.The detection device can be carried It is used with field, does not need particular formulation reagent and professional training, durable, the features such as cost is lower, high sensitivity, allow biography The pesticide residue fast detection card of system has more vitality.
Summary of the invention
The purpose of the present invention is to provide a kind of Rapid pesticide residue detection device, research team is invented before which is The renewal product of patent CN 108398426A, effectively prevents the error of manual operation, using temperature controller and when Between controller improve the accuracy of test result, utilize homemade color developing agent and enzyme to improve the sensitivity and detection speed of detection Degree, three groups of parallel samples or one group of blank and two groups of parallel samples or three groups of difference samples, guarantee test result accuracy or Rapidity effectively avoids false positive results.The detection device can carry with field use, can individually carrying part again Assembling or the whole use that is assembled together, do not need particular formulation reagent and professional training, durable, cheap, sensitive Spend the features such as high.
For above-mentioned purpose, the invention provides the following technical scheme:
A kind of Rapid pesticide residue detection device, it is characterised in that: the device for fast detecting include temperature controller (1), when Between controller (2), connection control line (3), controller connection unit (4), elastic clip (5), spring (6), buckle (7) composition, Elastic clip end (51) is equipped with three sockets (52) for placing test paper item, is separated between socket with partition (53), elastic clip Temperature sensor (54) are installed on upper and lower two intermediate plates;Test process is as follows:
When test, temperature controller (1) and time controller (2) are first opened, preheats elastic clip (5), then in elastic clip end (51) enzyme test strips or colour-development sheet test strips, elastic clip (5) another elastic clip are placed in parallel into three sockets (52) Colour-development sheet test strips or enzyme test strips are placed in parallel into the socket (52) of end three, it is slow that a drop is respectively dropped into enzyme test strips Fliud flushing is respectively dropped into a drop sample to be tested in colour-development sheet test strips, is closed elastic clip (5), is fastened with buckle (7), so that elastic force Pressing from both sides (5), two panels is in close contact up and down, and automatic jingle bell is reminded in setting time controller (2) 1-5 minutes, opens buckle (7), observation Enzyme test strips color is compared with the color contrast card of configuration, can also be done blank control group comparison with blank sample for the first time, is in Existing blue or sky blue, illustrate non agricultural chemical residuum, non-discolouring or without significant change, illustrate to need to keep sample and do there are pesticide residue Further experiment room strict inspection.
A kind of above-described Rapid pesticide residue detection device, it is characterised in that: temperature controller (1) be solar energy and Storage battery power supply, 24V voltage heat concurrent heating automatically, constant 37 ± 2 DEG C of temperature, guarantee experimental result accuracy and repeatability.
A kind of above-described Rapid pesticide residue detection device, it is characterised in that: time controller (2) be solar energy and Storage battery power supply, 24V voltage the adjustable settings time 1-5 minutes, are reminded to setting time jingle bell, guarantee that experimental result is accurate Property and repeatability.
Above-described a kind of Rapid pesticide residue detection device, it is characterised in that: controller connection unit (4) can lead to It crosses connection control line (3) and individually controls temperature controller (1) and time controller (2), temperature controller (1), time controller (2), connecting control line (3) and controller connection unit (4) can individually store, and the used time is used with connection control line (3) connection, It can also be fixed in a boxlike cabinet and use.
Above-described a kind of Rapid pesticide residue detection device, it is characterised in that: elastic clip (5) is thermally conductive by upper and lower two panels The good metal or metal alloy that elasticity is good and spring (6) assemble, and the end (51) of two panels is provided with bullet above and below elastic clip Power presss from both sides jackended (52), respectively there are three socket, is separated between each socket with elastic clip jackended partition (53), in elastic force It presss from both sides and is provided with temperature sensor (54) on the inside of two panels up and down, all elastic clips (5) and spring (6) external sheath polytetrafluoroethylene (PTFE) Film, anti-corrosion, acid and alkali-resistance.
Above-described a kind of Rapid pesticide residue detection device, it is characterised in that: buckle (7) is fixed elastic clip (5) Locker when closure, can be used alone, and also can connect on elastic clip (5) one of intermediate plate, measures sample When fixed card buckle (7), buckle (7) is opened when observed result, buckles (7) external sheath polytetrafluoroethylene film, anti-corrosion, acid and alkali-resistance.
A kind of above-described Rapid pesticide residue detection device, it is characterised in that: elastic clip jackended (52) measurement When three jack designs, three groups of parallel samples or one group of blank and two groups of parallel samples can be measured simultaneously or three groups are not same Product guarantee test result accuracy or rapidity.
Above-described a kind of Rapid pesticide residue detection device, it is characterised in that: the device configures color contrast card, root In contrast, test sample accuracy can be improved in sample test test strips color according to surveying and determination.
A kind of above-described Rapid pesticide residue detection device, it is characterised in that: the pesticide in the pesticide residue For organophosphorus pesticide and carbamate chemicals for agriculture, the enzyme test strips are plant amylum enzyme test strips, the colour-development sheet Test strips are the colour-development sheet test strips containing color developing agent 2,6- difluoro indophenols acetic acid esters.
Above-described a kind of Rapid pesticide residue detection device, it is characterised in that: the device continuously can be weighed uninterruptedly It is multiple to use, elastic clip end and its appurtenances are rinsed with clear water or buffer using preceding each time.
Compared with prior art, the beneficial effects of the present invention are the error for effectively preventing manual operation, temperature is utilized Controller and time controller improve the accuracy of test result, and the sensitivity of detection is improved using homemade color developing agent and enzyme With detection speed, three groups of sample measurements guarantee test result accuracy or rapidity, effectively avoid false positive results.Detection dress It sets to carry and be used with field, do not need particular formulation reagent and professional training, it is durable, it is cheap, it is sensitive Spend the features such as high.
Detailed description of the invention
Fig. 1 is Rapid pesticide residue detection device schematic diagram of the present invention.
Fig. 2 is elastic clip test sample closed state schematic diagram of the present invention.
Fig. 3 is elastic clip opening state schematic diagram of the present invention.
Fig. 4 is elastic clip opening state of the present invention and elastic clip end enlarged diagram.
Fig. 5 is elastic clip end of the present invention enlarged diagram.
Fig. 6 is that present invention buckle opens enlarged diagram.
Fig. 7 is that present invention buckle is closed enlarged diagram.
In figure: 1- temperature controller;2- time controller;3- connection control line;4- controller connection unit;5- elastic force Folder;6- spring;7- buckle;51- elastic clip end;52- elastic clip jackended;53- elastic clip jackended partition;54- temperature Spend sensor.
Specific embodiment
Following implementation example will better illustrate the present invention, and the attached drawing in the present invention will be combined in the embodiment of the present invention Technical solution carry out clear, complete description.Obviously, described embodiments are only a part of the embodiments of the present invention, needs It is stressed that the present invention, which is by no means limited to these, implements content represented by example.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention The range of protection.
Embodiment 1, specific test philosophy, operation and result
Working principle and test concrete operation step: a kind of Rapid pesticide residue detection device disclosed by the invention, the device exist When test, it is 37 ± 2 DEG C of steady temperatures that test-strips environment temperature when testing is controlled using temperature controller (1), is controlled using the time Accurately the control test strips reaction time was 2 minutes using setting time when mating test strips between 1-5 minutes to device (2) processed, to After elastic clip (5) preheating, plant-esterase tablet test strips or 2 are placed in parallel into three sockets (52) of elastic clip end (51), 6- difluoro indophenols acetic acid esters colour-development sheet test strips, it is recommended to use mating test strips, in another elastic clip end of elastic clip (5) It is placed in parallel into 2,6- difluoro indophenols acetic acid esters colour-development sheet test strips or plant-esterase tablet test strips in three sockets (52), successively exists It is respectively dropped into a drop buffer in plant-esterase tablet test strips, is respectively dropped into 2,6- difluoro indophenols acetic acid esters colour-development sheet test strips One drop sample to be tested, is closed elastic clip (5), is fastened with buckle (7), so that two panels is in close contact elastic clip (5) up and down, when setting Between controller (2) 120 seconds, automatic jingle bell opens buckle (7), observation of plant esterase piece test strips color, with configuration after reminding Color contrast card compares, and can also do blank control group with blank sample with first time and compare.Plant esterase can be catalyzed it is orange red or Red 2,6- difluoro indophenols acetic acid esters color developing agent is hydrolyzed to the indophenols of blue, when remaining organic phosphorus or amino in test sample When formate ester pesticide, inhibiting effect can be played to plant esterase, the concentration of pesticide residue is bigger, and plant esterase is suppressed effect and gets over By force, the activity of its own is lower, and developer is hydrolyzed fewer, and color is constant or varies slightly;Conversely, the concentration of pesticide residue It is smaller or do not have pesticide residue, the suppressed effect of plant esterase it is smaller or do not have inhibiting effect, its own activity it is higher, show Show that agent is hydrolyzed more, color becomes blue or navy blue.Color contrast according to developer color change situation, with configuration Card or blank group control sample compare, and can fast and accurately judge whether contain organic phosphorus or carbamic acid in institute's sample The residual condition of ester pesticides, the measurement needs of further pesticide residue content, which keep sample, does further experiment room strict inspection.
Every batch of measures the negative blank control test for setting a pure water or buffer.
Test result: Rapid pesticide residue detection device disclosed by the invention and matched enzyme test strips and colour developing are utilized Piece test strips, part of detecting is organic phosphorus or carbamate chemicals for agriculture meets standard GB/T/T 5009.199-2003 detection Standard, testing time were shorten to 2 minutes by original 3 minutes, and the repetitive rate and detection accuracy of detection greatly improve.
Embodiment 2, colour-development sheet contrast effect
Working principle and test concrete operation step in embodiment 1 working principle and test concrete operation step, only Colour-development sheet test strips replace with " 2,6 dichlorophenol indophenol acetic acid esters colour-development sheet by " 2,6- difluoro indophenols acetic acid esters colour-development sheet test strips " Test strips ".
Every batch of measures the negative blank control test for setting a pure water or buffer.
Test result: part of detecting is organic phosphorus or carbamate chemicals for agriculture does not meet standard GB/T/T largely 5009.199-2003 examination criteria.
Embodiment 3, colour-development sheet and time contrast effect
Working principle and test concrete operation step are with the working principle and test concrete operation step in embodiment 1, colour developing Piece test strips replace with " 2,6 dichlorophenol indophenol acetic acid esters colour-development sheet test paper by " 2,6- difluoro indophenols acetic acid esters colour-development sheet test strips " Item ", while " time controller (2) 120 seconds " is set as " time controller (2) 180 seconds ".
Every batch of measures the negative blank control test for setting a pure water or buffer.
Test result: part of detecting is organic phosphorus or carbamate chemicals for agriculture meets standard GB/T/T 5009.199- 2003 examination criterias.
Embodiment 4, blank control repetitive test
Working principle and test concrete operation step in embodiment 1 working principle and test concrete operation step, only " sample to be tested " replaces with " buffer ".
Test result: three groups of parallel testing test strips become blue or navy blue.
Embodiment 5, thimet pesticide residue testing experiment
Working principle and test concrete operation step in embodiment 1 working principle and test concrete operation step, only " sample to be tested " replaces with " pre-configured 0.5 mg/kg of thimet pesticide ".
Test result: three groups of parallel testing test strips are non-discolouring, illustrate that there are pesticide residues.
Embodiment 6, the test of pirimicarb pesticidal residue analysis
Working principle and test concrete operation step in embodiment 1 working principle and test concrete operation step, only " sample to be tested " replaces with " pre-configured 0.5 mg/kg of pirimicarb pesticidal ".
Test result: three groups of parallel testing test strips are non-discolouring, illustrate that there are pesticide residues.
Embodiment 7 and open file are to this test
It is described referring to comparing in open file CN 108398426A specific embodiment 1: " utilizing pesticide residue disclosed by the invention Quick test device and developer, part of detecting is organic phosphorus or the minimum detection limit of carbamate chemicals for agriculture is as follows: acephatemet 1.5 Mg/kg, 3.0 mg/kg of orthene, 0.2 mg/kg of zolone, 1.7 mg/kg of malathion, 3.0 mg/ of isocarbophos Kg, 1.4 mg/kg of parathion, 0.3 mg/kg of demeton, 0.3 mg/kg of thimet, 2.0 mg/kg of flolimat, Azodrin 2.1 mg/kg, 0.8 mg/kg of diazinon, 0.2 mg/kg of DDVP, 1.0 mg/kg of Rogor, 0.2 mg/kg of metrifonate, furans 0.4 mg/kg of pellet, sevin 1.0 mg/kg, good 0.8 mg/kg of winter in year, 0.1 mg/kg of Aphox."
Working principle and test concrete operation step in embodiment 1 working principle and test concrete operation step, only " sample to be tested " replaces with " all kinds of to be measured organic phosphorus or carbamates chemicals for agriculture ".
Test result: applying descending concentrations method, and organic phosphorus or carbamate is tested in three groups of parallel testing test strips detections The minimum detection limit of class pesticide is as follows: 1.0 mg/kg of acephatemet, 2.0 mg/kg of orthene, 0.1 mg/kg of zolone, 1.0 mg/kg of malathion, 2.0 mg/kg of isocarbophos, 0.8 mg/kg of parathion, 0.2 mg/kg of demeton, thimet 0.2 mg/kg, 1.0 mg/kg of flolimat, 1.0 mg/kg of Azodrin, 0.4 mg/kg of diazinon, 0.1 mg/kg of DDVP, 0.5 mg/kg of Rogor, 0.1 mg/kg of metrifonate, 0.2 mg/kg of Furadan, sevin 0.6 mg/kg, good 0.5 mg/ of winter in year Kg, 0.1 mg/kg of Aphox.The sensitivity of detection and accuracy rate improve.
Above while specific embodiments of the present invention have been shown and described, for those of ordinary skill in the art and Speech, it is possible to understand that these embodiments can be carried out with a variety of variations without departing from the principles and spirit of the present invention, repaired Change, replacement and variant, the scope of the present invention has the following claims and their equivalents restriction.

Claims (10)

1. a kind of Rapid pesticide residue detection device, it is characterised in that: the device for fast detecting include temperature controller (1), Time controller (2), connection control line (3), controller connection unit (4), elastic clip (5), spring (6), buckle (7) composition, It is equipped with three sockets (52) for placing test paper item in elastic clip end (51), is separated between socket with partition (53), elastic force It presss from both sides and temperature sensor (54) is installed on two intermediate plates up and down;Test process is as follows:
When test, temperature controller (1) and time controller (2) are first opened, preheats elastic clip (5), then in elastic clip end (51) enzyme test strips or colour-development sheet test strips, elastic clip (5) another elastic clip are placed in parallel into three sockets (52) Colour-development sheet test strips or enzyme test strips are placed in parallel into the socket (52) of end three, it is slow that a drop is respectively dropped into enzyme test strips Fliud flushing is respectively dropped into a drop sample to be tested in colour-development sheet test strips, is closed elastic clip (5), is fastened with buckle (7), so that elastic force Pressing from both sides (5), two panels is in close contact up and down, and automatic jingle bell is reminded in setting time controller (2) 1-5 minutes, opens buckle (7), observation Enzyme test strips color is compared with the color contrast card of configuration, can also be done blank control group comparison with blank sample for the first time, is in Existing blue or sky blue, illustrate non agricultural chemical residuum, non-discolouring or without significant change, illustrate to need to keep sample and do there are pesticide residue Further experiment room strict inspection.
2. a kind of Rapid pesticide residue detection device according to claim 1, it is characterised in that: temperature controller (1) is Solar energy and storage battery power supply, 24V voltage heat concurrent heating automatically, constant 37 ± 2 DEG C of temperature, guarantee experimental result accuracy and Repeatability.
3. a kind of Rapid pesticide residue detection device according to claim 1, it is characterised in that: time controller (2) is Solar energy and storage battery power supply, 24V voltage the adjustable settings time 1-5 minutes, are reminded to setting time jingle bell, guarantee experiment As a result accuracy and repeatability.
4. a kind of Rapid pesticide residue detection device according to claim 1, it is characterised in that: controller connection unit (4) can individually control temperature controller (1) and time controller (2) by connection control line (3), temperature controller (1), when Between controller (2), connection control line (3) and controller connection unit (4) can individually store, the used time with connect control line (3) Connection uses, and can also be fixed in a boxlike cabinet and use.
5. a kind of Rapid pesticide residue detection device according to claim 1, it is characterised in that: elastic clip (5) is by upper and lower The thermally conductive good metal or metal alloy that elasticity is good of two panels and spring (6) assemble, and the end (51) of two panels is equal above and below elastic clip Be provided with elastic clip jackended (52), respectively there are three socket, between each socket with elastic clip jackended partition (53) every It opens, is provided with temperature sensor (54) on the inside of two panels above and below elastic clip, all elastic clips (5) and spring (6) external sheath are poly- Tetrafluoroethylene, anti-corrosion, acid and alkali-resistance.
6. a kind of Rapid pesticide residue detection device according to claim 1, it is characterised in that: buckle (7) is fixed bullet Power presss from both sides locker when (5) closure, can be used alone, and also can connect on elastic clip (5) one of intermediate plate, surveys Fixed card buckle (7) when random sample product open buckle (7) when observed result, buckle (7) external sheath polytetrafluoroethylene film, and anti-corrosion is resistance to Soda acid.
7. a kind of Rapid pesticide residue detection device according to claim 1, it is characterised in that: elastic clip jackended (52) three jack designs when measuring, can measure three groups of parallel samples or one group of blank and two groups of parallel samples or three simultaneously The different samples of group, guarantee test result accuracy or rapidity.
8. a kind of Rapid pesticide residue detection device according to claim 1, it is characterised in that: the device configures color pair Test sample accuracy in contrast according to measurement sample test test strips color can be improved than card.
9. a kind of Rapid pesticide residue detection device described in -8 according to claim 1, it is characterised in that: the pesticide residue In pesticide be organophosphorus pesticide and carbamate chemicals for agriculture, the enzyme test strips be plant amylum enzyme test strips, institute Stating colour-development sheet test strips is the colour-development sheet test strips containing color developing agent 2,6- difluoro indophenols acetic acid esters.
10. a kind of Rapid pesticide residue detection device described in -8 according to claim 1, it is characterised in that: the device can connect Continuous uninterrupted reuse rinses elastic clip end and its appurtenances with clear water or buffer using preceding each time.
CN201811539242.2A 2018-12-17 2018-12-17 A kind of Rapid pesticide residue detection device Pending CN109580608A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111398259A (en) * 2020-03-24 2020-07-10 中国科学院合肥物质科学研究院 Automatic detection device and detection method for pesticide residues in water body

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