CN106198421A - Multifunctional food detector safely and fast - Google Patents

Abstract

The invention belongs to the technical field of food safety detection, and in particular relates to a multifunctional food safety rapid detector. The detector includes a box body, a cuvette detection area, a microtiter plate detection area, a touch display, a serial port, a two-dimensional code scanner, a micro-printer, a data processing and control module, a switch and a power supply; the cuvette detection area and The output of the microplate plate detection area is respectively connected with the data processing and control module, and the data processing and control module are respectively connected with touch display, serial port, two-dimensional code scanner and micro-printer; On and off. The invention can be used for on-site rapid detection of food safety, and can perform qualitative or quantitative detection on food additives, heavy metals, pesticide residues, veterinary drug residues, mycotoxins and the like.

Description

Multifunctional food safety rapid detector

technical field

The invention belongs to the technical field of food safety detection, and in particular relates to a multifunctional food safety rapid detector.

Background technique

In recent years, due to the indiscriminate use of pesticides and antibiotics in the cultivation and breeding of food raw materials, and the illegal use of additives in food processing, food safety problems have occurred frequently, while traditional laboratory testing has methods with high construction costs, limited equipment, and limited sample testing. , The sample detection cycle is long, the sample detection cost is high, and the workload is large, which can no longer meet the requirements of food safety detection for fast, accurate, portable, traceability, high sensitivity and low cost, so portable rapid detection is needed instrument for rapid testing.

Chinese patent CN204630920U discloses a box-type detector for spectral detection and intelligent visual analysis, including: an instrument case upper cover, an instrument case lower cover, a tablet computer, a spectrophotometer and a mobile phone visual analysis system. The cover and the lower cover of the instrument box are hinged, and a tablet computer is installed in the upper cover of the instrument box, and the lower cover of the instrument box is provided with a heat dissipation port, a sample test area of the spectrophotometer, a standard quality control storage area, and an interface area , an operating area, and a mobile phone visual analysis system, the spectrophotometer is set in the left area of the lower cover of the detection box.

Both spectrophotometer and microplate reader are based on the detection principle of spectrophotometry. The system mainly consists of light source, monochromator, detector, controller and other components. Most of the existing spectrophotometers and microplate readers on the market exist as independent products. Although some integrated detectors are highly integrated, they have fewer detection channels for corresponding microplate plates and microplates, and are still not fully compatible with many Channel cuvette assay and 96-well microtiter plate assay.

Contents of the invention

In view of the above problems, the present invention provides a multifunctional food safety rapid detector, which includes a box body, a cuvette detection area, a microplate detection area, a touch display, a serial port, a two-dimensional code scanner, Micro printers, data processing and control modules, switches and power supplies;

The outputs of the cuvette detection area and the microplate detection area are respectively connected to the data processing and control module, and the data processing and control module are respectively connected to the touch display, the serial port, and the two-dimensional A code scanner and the micro-printer; the power supply supplies power to the detector, and the switch controls the on and off of the power supply.

The cuvette detection area includes an incident light interface, a cuvette wheel, an outgoing light interface and a miniature spectrometer. The incident light interface is placed on the outside of the cuvette wheel, the center of the interface corresponds to the center of the cuvette pool, the outgoing light interface is placed on the inner side of the corresponding position of the cuvette wheel, the The outgoing light interface is connected with the miniature spectrometer through a single optical fiber.

The microplate detection area includes an incident light interface, a filter wheel, an outgoing light interface, a branch optical fiber, a microplate carrier plate, a converging lens plate, a detection plate, and a signal processing circuit. The incident light interface is placed on the front side of the filter wheel, corresponding to the center, and the exit light interface is placed on the rear side of the corresponding position of the filter wheel, and the exit light interface is connected to a 1:8 shunt optical fiber, the split optical fiber is placed on the upper side of the microplate carrier, the detection plate is placed on the lower side of the microplate carrier, and the converging lens plate is placed on the microplate carrier Between the board and the detection board, the signal processing circuit is connected to the detection board through a cable.

The detector adopts a double-beam light source with a wavelength range of 190nm to 800nm.

The double-beam light source consists of a tungsten-halogen lamp and a deuterium lamp.

The halogen tungsten lamp is divided into two optical fibers, one of which is connected to the incident light interface of the cuvette detection area together with the optical fiber of the deuterium lamp, and the incident light in the cuvette detection area is 190nm-800nm The other optical fiber is directly connected to the incident light interface of the detection area of the microplate, and the incident light of the detection area of the microplate is visible light of 360nm to 800nm.

The serial port includes a USB port and an RS232 port.

The cuvette wheel has 12 cuvettes, and each cuvette can hold a 10mm quartz cuvette. The cuvette wheel has 12 cuvettes, and each cuvette can hold a 10mm glass cuvette.

The detector has a GPS positioning module.

The beneficial effects of the present invention are:

1. The present invention integrates the functional modules of the spectrophotometer and microplate reader into a multi-functional food safety rapid detector, which can be applied to multi-channel cuvette detection and 96-well microplate plate ELISA method detection . In the rapid on-site detection of food safety, the number of instruments carried is reduced and the multi-functional detection requirements are met.

2. The instrument system adopts double-beam light sources—tungsten-halogen lamp and deuterium lamp, with a wavelength range of 190nm to 800nm, which meets the detection wavelength requirements of all food safety inspection items at present, and uses optical fiber technology to distribute the light source to different detection modules. The space occupied by the light source module is saved.

3. The present invention has a two-dimensional code scanner and GPS positioning function, which can quickly read sample information and geographic location information during the rapid detection of food safety on-site, so that the detection data information of the instrument corresponds to the sample information and prevents the sample from being damaged. Loss and random tampering, to achieve food safety traceability.

Description of drawings

Fig. 1 is an overall structural diagram of a multi-functional food safety rapid detector.

Fig. 2 is a schematic diagram of the internal structure of the multifunctional food safety rapid detector.

detailed description

The embodiments will be described in detail below in conjunction with the accompanying drawings.

The markings in the overall structure diagram of the multi-functional food safety rapid detector in Fig. 1 are as follows: 1, box body, 2, microplate detection area, 3, two-dimensional code scanner; 4, power supply; 5, switch; 6 , USB port; 7, RS232 port; 8, touch display; 9, cuvette detection area; 10, micro-printer.

The mark of the internal structural schematic diagram of the multifunctional food safety rapid detector of Fig. 2 is as follows: 11, deuterium lamp; 12, 1:2 branch optical fiber; 13, tungsten halogen lamp; 14, incident light interface (2); 15, filter Optical wheel; 16. Outgoing optical interface (2); 17. Enzyme plate carrier plate; 18. Detection plate; 19. Converging lens plate; 20. 1:8 split optical fiber; 21. Signal processing circuit; 22. GPS module; 23. data processing and control module; 24. miniature spectrometer; 25. outgoing light interface (1); 26. cuvette wheel; 27. incident light interface (1); 28. single optical fiber.

As shown in Figure 1 and Figure 2, the multifunctional food safety rapid detector includes a cabinet 1, a cuvette detection area 9, a microplate detection area 2, a touch display 8, a serial port 6 (7), a two-dimensional code scanning Encoder 3, micro-printer 10, power supply 4 and switch 5. A touch display 8 is provided on the top right of the cabinet 1, a cuvette detection area 9 is provided on the top left of the cabinet 1, a micro-printer 10 is provided on the bottom left of the cabinet 1, and the bottom left of the right side of the cabinet 1 A microplate detection area 2 is provided, a two-dimensional code scanner 3 is provided at the upper right part of the right side of the cabinet 1, and a power supply 4, a switch 5, a USB port 6, and an RS232 port 7 are provided at the lower left part of the back of the cabinet 1 in sequence.

The double-beam light source includes a tungsten-halogen lamp 13 and a deuterium lamp 11 . The tungsten-halogen lamp 13 is connected to the 1:2 split optical fiber 12, and the deuterium lamp 11 is connected to the incident light interface (1) 27 of the cuvette detection area 9 through a single optical fiber 28 and one of the optical fibers of the tungsten-halogen lamp 13. The other optical fiber of the tungsten-halogen lamp is connected to the incident light interface (2) 14 of the detection area 9 of the microplate plate.

The cuvette detection area 9 comprises incident light interface (1) 27, cuvette wheel 26, exit light interface (1) 25 and miniature spectrometer 24; Incident light interface (1) 27 is placed on the cuvette wheel 26 On the outside, the center of the interface corresponds to the center of the cuvette pool, and the exit light interface (1) 25 is placed on the inner side of the corresponding position of the cuvette wheel 26, and the exit light interface (1) 25 connects with the micro spectrometer 24 through a single optical fiber 28 connect.

Microplate detection area 2 includes incident light interface (2) 14, filter wheel 15, outgoing light interface (2) 16, 1:8 split optical fiber 20, microplate carrier plate 17, converging lens plate 19, detection Board 18, signal processing circuit 21. The incident light interface (2) 14 is placed on the front side of the filter wheel 15, corresponding to the center, the exit light interface (2) 16 is placed on the rear side of the corresponding position of the filter wheel 15, and the exit light interface (2) 16 is connected to the 1 :8 shunt optical fiber 20, 1:8 shunt optical fiber 20 is placed on the upper side of the microplate carrier plate 17, the detection plate 18 is placed on the lower side of the microplate carrier plate 17, and the converging lens plate 19 is placed on the microplate plate Between the carrier board 17 and the detection board 18, the signal processing circuit 21 is connected to the detection board 18 through a cable.

The data processing and control module 23 is connected with the miniature spectrometer 24 through a USB interface cable, and connected with the signal processing circuit 21, the GPS module 22, the two-dimensional code scanner 3 and the microprinter 10 through a cable respectively.

The invention integrates the functional modules of the spectrophotometer and the microplate reader into a multi-functional fast food safety detector, which can be applied not only to multi-channel colorimetric dish detection, but also to 96-well microplate plate ELISA method detection. In the rapid on-site detection of food safety, the number of instruments carried is reduced and the multi-functional detection requirements are met.

The instrument system adopts double-beam light sources - tungsten-halogen lamp and deuterium lamp, the wavelength range is 190nm ~ 800nm, which meets the detection wavelength requirements of all food safety inspection items at present, and uses optical fiber technology to distribute the light source to different detection modules, saving The space occupied by the light source module.

The invention has a two-dimensional code scanner and GPS positioning function, which can quickly read sample information and geographical location information during the rapid detection process of food safety, so that the detection data information of the instrument corresponds to the sample information, preventing the loss of samples and Random tampering to realize food safety traceability.

This embodiment is only a preferred specific implementation of the present invention, but the scope of protection of the present invention is not limited thereto, any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention , should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. a multifunctional food detector safely and fast, it is characterised in that: described detector includes that casing, cuvette detect District, ELISA Plate detection zone, touch display, serial ports, Quick Response Code code reader, mini-printer, data process with control module, open Close and power supply；

The output of described cuvette detection zone and described ELISA Plate detection zone processes with described data respectively and is connected with control module, Described data process and are connected described touch display, described serial ports, described Quick Response Code code reader and described with control module respectively Mini-printer；Described power supply is that described detector is powered, the on and off of power supply described in described on-off control.

A kind of multifunctional food detector safely and fast the most according to claim 1, it is characterised in that: described cuvette is examined Survey district and include incident illumination interface, cuvette wheel disc, emergent light interface and micro spectrometer；

Described incident illumination interface is placed on the outside of described cuvette wheel disc, and interface center is corresponding to the center in cuvette pond, institute Stating emergent light interface and be placed on the inboard of described cuvette wheel disc correspondence position, described emergent light interface passes through simple optical fiber and institute State micro spectrometer to connect.

A kind of multifunctional food detector safely and fast the most according to claim 1, it is characterised in that: described ELISA Plate is examined Survey district include incident illumination interface, optical filter wheel, emergent light interface, branch optical fiber, ELISA Plate support plate, collecting lens plate, detection plate, Signal processing circuit；

Described incident illumination interface is placed on the front side of described optical filter wheel, and center is corresponding, and described emergent light interface is placed on described The rear side of optical filter wheel correspondence position, described emergent light interface connects 1:8 branch optical fiber, and described branch optical fiber is placed on described enzyme The upside of target support plate, described detection plate is placed on the downside of described ELISA Plate support plate, and described collecting lens plate is placed on described Between ELISA Plate support plate and described detection plate, described signal processing circuit is connected by winding displacement with described detection plate.

A kind of multifunctional food detector safely and fast the most according to claim 1, it is characterised in that: described detector is adopted Using dual-beam light source, wave-length coverage is 190nm～800nm.

A kind of multifunctional food detector safely and fast the most according to claim 4, it is characterised in that: described dual-beam light Source is made up of a halogen tungsten lamp and a deuterium lamp.

A kind of multifunctional food detector safely and fast the most according to claim 5, it is characterised in that: described halogen tungsten lamp divides For two-way optical fiber, wherein the incident illumination interface of described cuvette detection zone received jointly by the optical fiber of a road optical fiber and described deuterium lamp, The ultraviolet-visible that incident illumination is 190nm～800nm of described cuvette detection zone；Another road optical fiber is directly connected to described enzyme mark The incident illumination interface of plate detection zone, the visible ray that incident illumination is 360nm～800nm of described ELISA Plate detection zone.

A kind of multifunctional food detector safely and fast the most according to claim 1, it is characterised in that: described serial ports includes USB port and RS232 mouth.

A kind of multifunctional food detector safely and fast the most according to claim 2, it is characterised in that: described cuvette is taken turns Dribbling has 12 colorimetric pools, and each colorimetric pool can place the quartz colorimetric utensil of 10mm specification.

A kind of multifunctional food detector safely and fast the most according to claim 2, it is characterised in that: described cuvette is taken turns Dribbling has 12 colorimetric pools, and each colorimetric pool can place the glass cuvette of 10mm specification.

A kind of multifunctional food detector safely and fast the most according to claim 1, it is characterised in that: described detector There is GPS locating module.