CN114923974A - Portable bread heavy metal detection device and detection method thereof - Google Patents
Portable bread heavy metal detection device and detection method thereof Download PDFInfo
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- CN114923974A CN114923974A CN202210824192.2A CN202210824192A CN114923974A CN 114923974 A CN114923974 A CN 114923974A CN 202210824192 A CN202210824192 A CN 202210824192A CN 114923974 A CN114923974 A CN 114923974A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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Abstract
The invention relates to the technical field of heavy metal detection, in particular to a portable bread heavy metal detection device and a detection method thereof. The technical scheme comprises the following steps: the main body shell is fixedly connected with the upper half shell through screws, the left parts of the lower half shell and the upper half shell are respectively provided with a special-shaped connecting ring with the position coinciding and the left opening, one side of the lower half shell and one side of the upper half shell close to each other are respectively provided with an annular placing notch positioned on the special-shaped connecting ring, and the annular placing notch is provided with a driving unit positioned in the main body shell and a sample storage unit matched with the driving unit and used in the special-shaped connecting ring. The foldable and retractable detection head is adopted, so that the problems of low integration level and large volume in the traditional detection equipment are solved; meanwhile, through the use of a plurality of in-vitro adjustable sample cups, the cleaning and maintenance are facilitated; avoid in the operation procedure because dismouting electrode chip and the experimental error that produces.
Description
Technical Field
The invention relates to the technical field of heavy metal detection, in particular to a portable bread heavy metal detection device and a detection method thereof.
Background
In terms of food safety, heavy metal pollution is one of the non-negligible factors, and the heavy metal pollution has wide sources and great harm and is closely related to the health of people. At present, heavy metal detection mainly comprises traditional laboratory detection and common heavy metal quick detection equipment in the market. The traditional laboratory detection is mainly realized by a large-scale laboratory instrument, the experimental operation requirement is high, the experimental period is long, and the equipment is expensive, so that the traditional laboratory detection cannot be popularized and applied to field detection; in order to meet the demand of on-site quick detection, a plurality of heavy metal quick detectors appear in the market, the heavy metal detection is realized mainly through an X fluorescence spectrometry and an electrochemical stripping voltammetry, the complex sample pretreatment is not needed in the measuring process of the X fluorescence spectrometry heavy metal detector, the analysis speed is high, the precision is high, the size of the detector is relatively large, the measuring process is greatly interfered by other elements, and the influence of a superposition peak is easily caused. The electrochemical stripping voltammetry heavy metal detector is small in size, strong in portability and relatively low in limit of quantitation, and is easier to understand and accept by operators in terms of the method, but in the using process, the accuracy of sample liquid measurement can be achieved only by stirring uniformly in advance.
Compared with the prior art, the portable electrochemical heavy metal detection device provided by the invention has the advantages of compact and small structure, portability and easiness in operation, and can be independently used as an instrument or placed in other modules as a module.
In the technical scheme, the split type electrode chip and the matched single split type sample cup are adopted; in the detection step, at least more than two sample cups are needed for testing, wherein in order to improve the detection accuracy, a method of multiple detection is generally adopted for detection, and the electrode chip needs to be taken down and washed in the experiment process, so that certain adhesion exists between the glove fingers and heavy metals enriched on the electrode chip in the taking-down process, and the electrode chip can be installed again; in the technical scheme, a single matched sample cup is not enough to overcome the existing problems; in the technical scheme, the adopted base and the adopted movement unit have larger volume compared with the common existing detection instrument, the volume utilization rate of the internal space of the detection instrument is lower, and the detection instrument cannot be accommodated in a good space.
Disclosure of Invention
The invention aims to provide a portable bread heavy metal detection device with high operation error integration degree aiming at the problems in the background technology.
The technical scheme of the invention is as follows: a portable bread heavy metal detection device comprises a main body shell which is fixedly connected by a lower half shell and an upper half shell through screws, the left parts of the lower half shell and the upper half shell are both provided with special-shaped connecting rings which are overlapped in position and are opened leftwards, annular placing gaps positioned on the special-shaped connecting rings are formed in the side, close to each other, of the lower half shell and the upper half shell, a driving unit positioned in the main body shell is arranged between the two annular placing gaps, sample storage units matched with the driving unit are arranged in the two special-shaped connecting rings, a detection unit capable of storing and folding samples and used for detecting the samples is rotatably connected in the special-shaped connecting ring positioned on the upper side, the circuit board assembly for operation processing is arranged in the main body shell, the touch operation display screen capable of being controlled in a touch mode is arranged in the main body shell, and the power supply unit is arranged on the main body shell.
Preferably, the driving unit includes a gear ring disposed between the two annular placement notches, a plurality of matching blocks are fixed on an inner circumferential surface of the gear ring at equal intervals, a ring strip sleeved on a circular outer ring of the special-shaped connection ring is fixed on a lower side of the gear ring, a motor is fixed on an inner side of the lower half shell, and a gear in meshing transmission with the gear ring is fixed on an output shaft of the motor.
Preferably, the storage unit comprises a box bin which is inserted into the toothed ring and provided with a plurality of sliding grooves on the outer circumferential surface, the sliding grooves in the box bin correspond to the matching blocks one by one, a top cover plate is fixed at the upper end of the box bin, a plurality of sample grooves are formed in the circumferential direction of the upper side of the top cover plate at equal intervals, sample cups are inserted into the sample grooves, a bearing plate located on the lower side of each sample cup is arranged on the inner side of the box bin, a lengthened plate located on the upper side of the top cover plate is connected to the center of the upper side of the bearing plate through a strip block, a circular hole is formed in the upper side of the top cover plate, the diameter of the circular hole is equal to the diagonal length of the cross section of the strip block, and an insertion through groove which is used for inserting the lengthened plate and communicated with the circular hole is formed in the upper side of the top cover plate.
Preferably, the detecting element is including rotating the pipe of connection in lieing in upside dysmorphism link, be connected with flat tub of one that is linked together with the pipe on the pipe, the left side sliding connection of flat tub of one has the restriction picture peg, dysmorphism link internal fixation has the restriction fixed strip of pegging graft complex with the restriction picture peg, the right-hand member portion of flat tub of one is rotated through the hinge and is connected with flat tub of two, the right side of flat tub of one and the downside of flat tub of two are provided with and are used for carrying out the locating component of angle location with flat tub of one and flat tub of two, the right-hand member portion intercommunication of flat tub of two is connected with the detection head shell, be provided with the detection circuitry who corresponds with the sample cup position in the detection head shell, detection circuitry fit is pegged graft and is had electrode chip.
Preferably, locating component is including fixing the square on flat tub of a right side, the downside of square runs through to be provided with the slip and inserts the post, fixed cover is equipped with the lagging that is located the square upside on the slip inserts the post, be fixed with the cover between lagging and the square and establish the spring on the slip inserts the post, the downside of flat tub of two is fixed with the butt joint piece, the butt joint hole of pegging graft mutually with the slip insert post is all seted up to the left side and the downside of butt joint piece.
Preferably, the power supply unit includes a battery box disposed on the lower half shell, a battery is disposed in the battery box, and a battery cover for sealing the battery is fixed to the bottom of the lower half shell.
Preferably, a power switch which is arranged between the lower half shell and the upper half shell and used for controlling the on-off of the battery and the circuit board assembly is arranged on the front side of the main body shell, and a motor switch used for controlling the on-off of the motor is arranged on the upper side of the upper half shell.
The detection method of the portable bread heavy metal detection device is applied to the portable bread heavy metal detection device and comprises the following steps:
s1: digesting different bread parts by digestion liquid, and taking supernate to prepare sample liquid to be detected;
s2: placing a sample cup in a sample groove, inserting an electrode chip into a port of a detection circuit board, adjusting the position, adding a pretreatment liquid into the sample cup, and performing coating modification through touch operation display screen operation control;
s3: adjusting the position of the lengthening plate to realize the downward placement of a plurality of sample cups, driving the box bin to rotate until the position of another sample cup is aligned with the position of the electrode chip, washing the electrode chip modified by pretreatment in S2 with pure water, driving the box bin again until another sample cup is aligned with the electrode chip, adding the detection base solution and the sample solution obtained in S1 and the pure water, and fully and uniformly mixing;
s4: the detection process of the sample is completed by operating the scanning key on the touch operation display screen, then quantitative standard solution is added into the sample cup, the labeling test is completed by operating the scanning key on the touch operation display screen, the collected related data is analyzed by an operating system and a software algorithm which are arranged in the circuit board assembly, and the data is displayed by the touch operation display screen.
Compared with the prior art, the invention has the following beneficial technical effects:
through the use of a plurality of sample cups in the storage unit and the adjustment of the lifting position of the sample cup which can be controlled by the storage unit, the operation step of taking off the electrode chip can be directly avoided in the detection process of the detection unit, the flushing operation can be directly carried out, the flushing fluid can be directly concentrated in one sample cup, the tedious operation of disassembling and assembling the electrode chip in the detection process can be avoided, the operation step of taking the sample cup back and forth can be reduced, the operation time can be saved, and the possibility of errors in the operation process can be reduced;
through the use of the positioning assembly in the detection unit, the detection unit can be folded and stored, the defect that the detection unit is inconvenient to carry due to the fact that the detection unit is externally arranged in the traditional detection equipment is avoided, meanwhile, the occupied space is reduced, the integration level of the equipment is improved, and the detection unit is more convenient to use;
by the use method of the detection equipment, the operation steps are reduced, errors caused by operation are reduced, and experimental errors are reduced by adopting multiple times of detection.
Drawings
FIG. 1 is a schematic diagram of the structure of one embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the body case of FIG. 1;
FIG. 3 is a schematic illustration of the exploded structure of FIG. 1;
FIG. 4 is a front cross-sectional view of FIG. 1;
FIG. 5 is a bottom perspective view of FIG. 1;
FIG. 6 is a schematic view of the storage unit of FIG. 1;
FIG. 7 is a front cross-sectional view of FIG. 6;
FIG. 8 is a schematic diagram of the detection unit shown in FIG. 1;
FIG. 9 is a front cross-sectional view of FIG. 8;
fig. 10 is a structural diagram of the storage state of fig. 1.
Reference numerals: 1. a lower half shell; 2. an upper half shell; 3. a special-shaped connecting ring; 4. a gap is arranged annularly; 5. a toothed ring; 6. a ring strip; 7. a motor; 8. a gear; 9. a box bin; 10. a top sealing plate; 11. a sample tank; 12. a bearing plate; 13. a bar block; 14. lengthening a plate; 15. a sample cup; 16. a circular tube; 17. a first flat pipe; 18. flat pipes II; 19. a limiting insertion plate; 20. a restraining fixing strip; 21. sliding the inserted column; 22. sheathing; 23. a spring; 24. detecting a head shell; 25. detecting the circuit board; 26. an electrode chip; 27. a circuit board assembly; 28. touch operation of the display screen; 29. a motor switch; 30. a power switch; 31. a battery case; 32. a battery; 33. a battery cover.
Detailed Description
The technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 1-10, the portable bread heavy metal detection device provided by the invention comprises a main body shell fixedly connected by a lower half shell 1 and an upper half shell 2 through screws, wherein the left parts of the lower half shell 1 and the upper half shell 2 are respectively provided with a special-shaped connecting ring 3 which is overlapped in position and is opened to the left, and one side of the lower half shell 1, which is close to the upper half shell 2, is respectively provided with an annular placing notch 4 positioned on the special-shaped connecting ring 3.
Two rings form place and be provided with the drive unit who is located the main part shell between the breach 4, and drive unit places the ring gear 5 between the breach 4 including setting up in two rings forms, and the equidistant a plurality of cooperation pieces that are fixed with on the inner peripheral face of ring gear 5, and the downside of ring gear 5 is fixed with the ring strip 6 that the cover was located on the circular outer lane of dysmorphism go-between 3, sets up the breach that supplies two pivoted symmetries of ring strip 6 to set up on the dysmorphism go-between 3 that is located the downside. The inner side of the lower half-shell 1 is fixed with a motor 7, and an output shaft of the motor 7 is fixed with a gear 8 which is in meshing transmission with the gear ring 5.
The utility model provides a be provided with in two special-shaped go-between 3 and deposit the unit with the sample that the drive unit cooperation was used, it includes the box storehouse 9 of pegging graft in ring gear 5 and seting up a plurality of spouts on the periphery outward to deposit the unit, spout and cooperation piece one-to-one on the box storehouse 9, the upside circumferencial direction equidistant a plurality of sample grooves 11 of the sealed roof board 10 of being fixed with in the upper end of box storehouse 9, sample cup 15 has all been pegged graft in every sample groove 11, the inboard of box storehouse 9 is provided with and is located the accepting dish 12 of sample cup 15 downside, the upside center department of accepting dish 12 is connected with the extension board 14 that is located sealed roof board 10 upside through strip piece 13, the upside of sealed roof board 10 is fixed with the rubber ring that the internal diameter is greater than extension board 14 lengths. The upside of back cover board 10 has seted up circular entrance to a cave, and the diameter in circular entrance to a cave equals with the cross-section diagonal length of strip 13, and the upside of back cover board 10 is seted up and is used for elongated plate 14 to alternate and the interlude groove that is linked together with circular entrance to a cave.
The 3 internal rotations in dysmorphism go-between that are located the upside are connected with and can accomodate the detecting element who folds and be used for detecting the sample, and detecting element is including rotating the pipe 16 of connection in being located upside dysmorphism go-between 3, has seted up a pair of 16 pivoted round holes that supply the pipe on the dysmorphism go-between 3 that is located the upside, and pipe 16 rotates to be connected in the round hole. The round tube 16 is connected with a flat tube I17 communicated with the round tube 16, the left side of the flat tube I17 is connected with a limiting insertion plate 19 in a sliding mode, a limiting fixing strip 20 in inserting fit with the limiting insertion plate 19 is fixed in the special-shaped connecting ring 3, and the upper side of the limiting fixing strip 20 is provided with a slot hole in fit with the limiting insertion plate 19. The right-hand member end of flat pipe 17 is connected with flat pipe two 18 through hinge rotation, the right side of flat pipe 17 and the downside of flat pipe two 18 are provided with the locating component who is used for carrying out angle location with flat pipe 17 and flat pipe two 18, locating component is including fixing the square on flat pipe 17 right side, the downside of square runs through and is provided with the slip and inserts post 21, fixed cover on the slip inserts post 21 is equipped with the lagging 22 that is located the square upside, be fixed with the cover between lagging 22 and the square and establish the spring 23 on the slip inserts post 21, the downside of flat pipe two 18 is fixed with the butt joint piece, the left side and the downside of butt joint piece all offer the butt joint hole of pegging graft mutually with slip insert post 21. The right end part of the flat tube II 18 is connected with a detection head shell 24 in a communicating mode, and the outer diameter of the detection head shell 24 is matched with the inner diameter of a rubber ring on the top sealing plate 10. A detection circuit board 25 corresponding to the position of the sample cup 15 is arranged in the detection head shell 24, and a flat hole matched with the port of the detection circuit board 25 is formed in the lower side of the detection head shell 24. An electrode chip 26 is inserted into the detection circuit board 25.
A circuit board assembly 27 for operation processing is arranged in the main body shell, and an operating system and a software algorithm for acquisition, calculation, analysis and display are arranged in the circuit board assembly 27; the circuit board assembly 27 is internally provided with a regulation program for controlling the rotation angle of the motor 7. A touch operation display screen 28 which can be controlled by touch is arranged in the main body shell, and an operation window matched with the touch operation display screen 28 is arranged on the upper side of the upper half shell 2. The power supply unit is arranged on the main body shell and comprises a battery box 31 arranged on the lower half shell 1, a battery 32 is arranged in the battery box 31, a battery cover 33 used for sealing the battery 32 is fixed at the bottom of the lower half shell 1, a power switch 30 which is positioned between the lower half shell 1 and the upper half shell 2 and used for controlling the on-off of the battery 32 and the circuit board assembly 27 is arranged on the front side of the main body shell, and a motor switch 29 used for controlling the opening and closing of the motor 7 is arranged on the upper side of the upper half shell 2.
In this embodiment, preparation work is required before use: taking out the device as shown in FIG. 10, the device is placed stably; then the detection head shell 24 is pulled up, the flat tube II 18 connected with the detection head shell 24 drives the flat tube I17 and the circular tube 16 to rotate 90 degrees with the circular hole on the special-shaped connecting ring 3 through the hinge, and then the limiting inserting plate 19 connected with the flat tube I17 in a sliding mode is inserted into the limiting fixing strip 20 to limit the rotating position of the circular tube 16. Then the sleeve plate 22 is pushed backwards, the sleeve plate 22 extrudes the spring 23 to compress, and then the sliding inserting column 21 is separated from the butt joint hole of the butt joint block and is pulled downwards continuously; then the detection head shell 24 is pulled down, the hinge of the flat tube I17 and the flat tube II 18 rotates clockwise for 90 degrees, then the sleeve plate 22 is loosened, the sliding insertion column 21 is inserted into another butt joint hole on the butt joint block under the elastic force effect of the spring 23, and the vertical state of the flat tube I17 and the detection head shell 24 and the flat tube II 18 is realized, as shown in fig. 1.
Hot standby preheating operation: the electrode chip 26 is inserted into the port of the detection circuit board 25, and then the elongated plate 14 in the cartridge compartment 9 is taken up through the circular hole on the top sealing plate 10, and the elongated plate 14 is taken up through the corresponding insertion through groove on the top sealing plate 10. When the extension plate 14 is completely located on the upper side of the top closure plate 10, the extension plate 14 is rotated, and the extension plate 14 holds up the sample cup 15 via the receiving tray 12 fixed by the bar 13. When the electrode chip 26 is butted against the sample cup 15 corresponding to the position, the power switch 30 is then pressed, so that the circuit board assembly 27 is started, and the device is preheated.
And (3) test operation: then the pretreatment liquid is put into the device, and then the control system and the corresponding program are operated through the touch operation display screen 28 to carry out coating modification. Then the extension plate 14 is rotated and adjusted, the extension plate 14 falls through the penetrating through groove, and then the positions of the sample cups 15 are lowered. The rotating angle parameter of the motor 7 is modified by operating the touch operation display screen 28, the motor 7 is started to work through the motor switch 29, the gear 8 is driven to be meshed with the gear ring 5 through the driving action of the motor 7, and the gear is rotated by a proper angle. The gear ring 5 drives the box bin 9 to rotate through the matching block, so that the position of the sample cup 15 in the box bin 9 is rotated until the position of another sample cup 15 is aligned with the position of the electrode chip 26. The electrode chip 26 after the pretreatment modification is washed with pure water and directly washed into the sample cup 15. Then press motor switch 29 again, realize drive box storehouse 9, after another sample cup 15 aligns with electrode chip 26 and add and detect the base solution and gained sample liquid and pure water, then through directly rotating sample cup 15, realize the stirring through the flat slice characteristics of electrode chip 26 to reach abundant mixing. Then, the scanning key on the touch operation display screen 28 is operated to complete the detection process of the sample, and then a quantitative standard solution is added into the sample cup 15, and the scanning key on the touch operation display screen 28 is operated to complete the labeling test. The collected related data are analyzed through a built-in operating system and a software algorithm of the circuit board assembly 27, and displayed through the touch operation display screen 28, so that the detection process can be completed.
Example two
The invention provides a detection method of a portable bread heavy metal detection device, which comprises the following steps:
s1: digesting different bread parts by digestion liquid, and taking supernate to prepare sample liquid to be detected;
s2: placing the sample cup 15 in the sample groove 11, inserting the electrode chip 26 and the port of the detection circuit board 25, adjusting the position, adding a pretreatment liquid into the sample cup 15, and performing coating modification through the operation control of the touch operation display screen 28;
s3: adjusting the position of the extension plate 14, realizing the downward placement of a plurality of sample cups 15, driving the box bin 9 to rotate until the other sample cup 15 is aligned with the electrode chip 26, washing the electrode chip 26 modified by pretreatment in S2 with pure water, driving the box bin 9 again until the other sample cup 15 is aligned with the electrode chip 26, adding the detection base solution and the sample solution and the pure water obtained in S1, and fully mixing.
S4: the sample detection process is completed by operating the scanning key on the touch operation display screen 28, then a quantitative standard solution is added into the sample cup 15, the marking test is completed by operating the scanning key on the touch operation display screen 28, the collected related data is analyzed by the built-in operating system and software algorithm of the circuit board assembly 27, and the data is displayed by touching the touch operation display screen 28.
In this embodiment, by using the method for detecting the device, the operation steps are reduced, errors caused by operation are reduced, and experimental errors are reduced by adopting multiple detections.
The above embodiments are only some preferred embodiments of the present invention, and many alternative modifications and combinations of the above embodiments may be made by those skilled in the art based on the technical solution of the present invention and the related teachings of the above embodiments.
Claims (8)
1. The utility model provides a portable bread heavy metal detection device which characterized in that: comprises a main body shell fixedly connected with an upper half shell (2) through screws, wherein the left parts of the lower half shell (1) and the upper half shell (2) are respectively provided with a special-shaped connecting ring (3) with coincident positions and an opening towards the left, one side of the lower half shell (1) close to the upper half shell (2) is respectively provided with an annular placing notch (4) positioned on the special-shaped connecting ring (3), two driving units positioned in the main body shell are arranged between the annular placing notches (4), two sample storage units matched with the driving units are arranged in the special-shaped connecting ring (3), the special-shaped connecting ring (3) positioned at the upper side is rotatably connected with a detection unit which can be used for storing and folding samples and detecting the samples, a circuit board assembly (27) used for operation processing is arranged in the main body shell, and a touch operation display screen (28) which can be controlled by touch is arranged in the main body shell, the main body shell is provided with a power supply unit.
2. The portable bread heavy metal detection device as claimed in claim 1, characterized in that: the drive unit comprises two annular gear rings (5) arranged between the notches (4), a plurality of matching blocks are fixed on the inner circumferential surface of each gear ring (5) at equal intervals, a ring strip (6) sleeved on the circular outer ring of the special-shaped connecting ring (3) is fixed on the lower side of each gear ring (5), a motor (7) is fixed on the inner side of the lower half shell (1), and a gear (8) meshed with the gear rings (5) for transmission is fixed on an output shaft of the motor (7).
3. The portable bread heavy metal detection device according to claim 2, characterized in that: the storage unit comprises a box bin (9) which is inserted in the toothed ring (5) and provided with a plurality of sliding grooves on the outer circumferential surface, the sliding grooves on the box bin (9) correspond to the matching blocks one by one, a top sealing plate (10) is fixed at the upper end of the box bin (9), a plurality of sample grooves (11) are arranged on the upper side of the top sealing plate (10) at equal intervals in the circumferential direction, a sample cup (15) is inserted into each sample groove (11), the inner side of the box bin (9) is provided with a bearing disc (12) positioned at the lower side of the sample cup (15), the center of the upper side of the bearing disc (12) is connected with an extension plate (14) positioned on the upper side of the top sealing plate (10) through a strip block (13), a round hole is arranged on the upper side of the top sealing plate (10), the diameter of the round hole is equal to the diagonal length of the section of the bar block (13), and the upper side of the top sealing plate (10) is provided with an inserting through groove which is used for inserting the lengthened plate (14) and is communicated with the round hole.
4. The portable bread heavy metal detection device according to claim 3, characterized in that: the detection unit comprises a round pipe (16) which is rotatably connected in a special-shaped connection ring (3) arranged on the upper side, a first flat pipe (17) communicated with the round pipe (16) is connected on the round pipe (16), the left side of the first flat pipe (17) is slidably connected with a limiting insertion plate (19), a limiting fixing strip (20) which is in plug-in fit with the limiting insertion plate (19) is fixed in the special-shaped connection ring (3), the right end part of the first flat pipe (17) is rotatably connected with a second flat pipe (18) through a hinge, the right side of the first flat pipe (17) and the lower side of the second flat pipe (18) are provided with positioning components for carrying out angle positioning on the first flat pipe (17) and the second flat pipe (18), the right end part of the second flat pipe (18) is communicated with a detection head shell (24), and a detection circuit board (25) corresponding to the position of a sample cup (15) is arranged in the detection head shell (24), and an electrode chip (26) is inserted in the detection circuit board (25) in a matching way.
5. The portable bread heavy metal detection device according to claim 4, characterized in that: locating component is including fixing the square on flat tub of (17) right side, the downside of square runs through to be provided with the slip and inserts post (21), the slip is inserted fixed cover on post (21) and is equipped with lagging (22) that are located the square upside, be fixed with between lagging (22) and the square to establish spring (23) on slip insertion post (21), the downside of flat tub of two (18) is fixed with the butt joint piece, the butt joint hole of pegging graft mutually with slip insertion post (21) is all seted up to the left side and the downside of butt joint piece.
6. The portable bread heavy metal detection device as claimed in claim 5, characterized in that: the power supply unit comprises a battery box (31) arranged on the lower half shell (1), a battery (32) is arranged in the battery box (31), and a battery cover (33) used for sealing the battery (32) is fixed at the bottom of the lower half shell (1).
7. The portable bread heavy metal detection device as claimed in claim 6, characterized in that: the front side of the main body shell is provided with a power switch (30) which is positioned between the lower half shell (1) and the upper half shell (2) and used for controlling the on-off of the battery (32) and the circuit board assembly (27), and the upper side of the upper half shell (2) is provided with a motor switch (29) used for controlling the on-off of the motor (7).
8. A method for detecting a portable bread heavy metal detection device, which is applied to the portable bread heavy metal detection device according to any one of claims 4-7, and is characterized by comprising the following steps:
s1: digesting different bread parts by digestion liquid, and taking supernate to prepare sample liquid to be detected;
s2: placing a sample cup (15) in a sample groove (11), inserting an electrode chip (26) into a port of a detection circuit board (25), adjusting the position, adding a pretreatment liquid into the sample cup (15), and performing coating modification through the operation control of a touch operation display screen (28);
s3: adjusting the position of the extension plate (14), realizing the downward placement of a plurality of sample cups (15), driving the box bin (9) to rotate until the position of another sample cup (15) is aligned with the position of the electrode chip (26), washing the electrode chip (26) modified by pretreatment in S2 with pure water, driving the box bin (9) again until another sample cup (15) is aligned with the electrode chip (26), adding the detection base solution and the sample solution obtained in S1 and the pure water, and fully mixing the solution;
s4: the detection process of the sample is completed by operating the scanning key on the touch operation display screen (28), then a quantitative standard solution is added into the sample cup (15), the marking test is completed by operating the scanning key on the touch operation display screen (28), the collected related data is analyzed by a built-in operating system and a software algorithm of the circuit board assembly (27), and the data is displayed by touching the touch operation display screen (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210824192.2A CN114923974B (en) | 2022-07-14 | 2022-07-14 | Portable bread heavy metal detection device and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210824192.2A CN114923974B (en) | 2022-07-14 | 2022-07-14 | Portable bread heavy metal detection device and detection method thereof |
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| US20190079063A1 (en) * | 2016-03-15 | 2019-03-14 | Dots Technology Corp. | Systems and methods for allergen detection |
| CN114295853A (en) * | 2021-12-13 | 2022-04-08 | 杭州睿丽科技有限公司 | Full-automatic chemiluminescence immunoassay analyzer and application method thereof |
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| GB2001443A (en) * | 1977-07-22 | 1979-01-31 | Eastman Kodak Co | Testing apparatus for analysis of liquid samples |
| EP0217000A2 (en) * | 1985-07-15 | 1987-04-08 | Abbott Laboratories | Reagent containment system for a clinical analyser |
| US6551833B1 (en) * | 1999-03-12 | 2003-04-22 | Innotrac Diagnostics Oy | Method for handling samples and diagnostic measuring device |
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| US20130040307A1 (en) * | 2011-08-08 | 2013-02-14 | Thermo Fisher Scientific Oy | Method and apparatus for automated analysis |
| US20190079063A1 (en) * | 2016-03-15 | 2019-03-14 | Dots Technology Corp. | Systems and methods for allergen detection |
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