CN203224476U - Rapid food safety detection equipment based on high-field asymmetric ion mobility spectrometry - Google Patents
Rapid food safety detection equipment based on high-field asymmetric ion mobility spectrometry Download PDFInfo
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- CN203224476U CN203224476U CN201320232205.3U CN201320232205U CN203224476U CN 203224476 U CN203224476 U CN 203224476U CN 201320232205 U CN201320232205 U CN 201320232205U CN 203224476 U CN203224476 U CN 203224476U
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Abstract
The utility model discloses rapid food safety detection equipment based on high-field asymmetric ion mobility spectrometry. According to the equipment, a carrier gas outlet of a high-field asymmetric ion mobility spectrometer is connected with a getter pump; the getter pump is connected with a first mass flow controller and a second mass flow controller which are respectively positioned on two branches; an activated carbon/molecular sieve purification device and an activated carbon filtering device are sequentially arranged behind the first mass flow controller; a gas channel behind the activated carbon filtering device is jointed with a gas channel from a headspace sampling device; and the gas enters the high-field asymmetric ion mobility spectrometer. The rapid food safety detection equipment is reasonable in structure and has the characteristics of small size, simplicity in operation, rapid detection and the like, the complex gas circuit and sample pretreatment process of the traditional equipment are saved, hash detection environment requirements are avoided, and the requirement on portable and rapid field detection can be met.
Description
Technical field
The utility model relates to a kind of food safety rapid detecting equipment.
Background technology
Melamine, plasticiser, these food security events affectings are more and more serious, also increasing to the fear that the public causes, food security has become the sensitive word that touches public's nerve, and the routine work of Food Inspection regulator has been formed immense pressure undoubtedly.Constantly there is the illegal additive of new kind in food, to be found on the one hand; On the other hand, the harmfulness of some long-term adjuvants that use is by cognitive again, and these have brought huge workload all for the supervision of food safety verification.Illegal additive check is according to the traditional food detection method in the food, adopt chromatogram or spectrum etc., must carry out complicated sample pre-treatment process, instrumentation environmental requirement height, setup time is long, the time of one-time detection is pulled to several hrs even tens hours, and these detection methods have determined it can't realize fast detecting from basic principle, and can not accomplish comprehensive covering of risk point.Preliminary work before detecting is the central factor of restriction time and energy cost in the present industry.How in time fast detecting goes out the illegal additive in the food, and the problem that product quality is effectively supervised is just put at the moment.Minitype ion migration spectral technology provides possibility for addressing these problems, utilize the fast detecting equipment of this technical research, can help the reviewer to avoid the randomness of on-the-spot organoleptic examination and the complicacy that the laboratory is detected, need not the complicated sample preprocessing process, just can find rapidly whether product composition is unusual, determines special harmful substance simultaneously.
" National Program for Medium-to Long-term Scientific and Technological Development (2006 ━ the year two thousand twenty) " clearly classifies food security and inspection and quarantining for import/export as public safety field preferential theme.The quick test equipment that exploitation has practicality, universality has just had outstanding value.In " outline " generation information functional material and device are classified as the preferential theme of manufacture field simultaneously.Minitype ion migration spectral technology relates to little processing of carbon nano-tube new material and sensor array, it is the technology that has international most advanced level at present, the checkout equipment that how to utilize this technological development to have novelty is realized this technology in the application in food security field, is a problem that is worth research.
Summary of the invention
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, the food safety rapid detecting equipment based on the asymmetric ion mobility spectrometry technology of High-Field that usability is good.
Technical solution of the present utility model is:
A kind of food safety rapid detecting equipment based on the asymmetric ion mobility spectrometry technology of High-Field, it is characterized in that: comprise the asymmetric ionic migration spectrometer of High-Field, the carrier gas outlet of the asymmetric ionic migration spectrometer of High-Field is connected with asepwirator pump, asepwirator pump and first mass flow controller that lays respectively on two branch roads, second mass flow controller connects, set gradually activated charcoal/molecular sieve purification device behind first mass flow controller, active carbon filtering device, gas passage behind the active carbon filtering device with converge from the air flue of headspace sampling device, and enter the asymmetric ionic migration spectrometer of High-Field.
The utility model is rational in infrastructure, has little (＜0.2 cm of volume
3), (direct injected) simple to operate, fast detecting characteristics such as (＜10 min), saved complicated gas circuit and the sample pretreatment process of conventional detection devices, do not have harsh testing environment requirement, can realize requirement portable, field quick detection.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of an embodiment of the utility model.
Embodiment
A kind of food safety rapid detecting equipment based on the asymmetric ion mobility spectrometry technology of High-Field, comprise the asymmetric ionic migration spectrometer 1 of High-Field, the carrier gas outlet of the asymmetric ionic migration spectrometer of High-Field is connected with asepwirator pump 2, asepwirator pump and first mass flow controller 3 that lays respectively on two branch roads, second mass flow controller 4 connects, set gradually activated charcoal/molecular sieve purification device (activated charcoal and molecular sieve composite set) 5 behind first mass flow controller, active carbon filtering device 6, gas passage behind the active carbon filtering device with converge from the air flue of headspace sampling device 7, and enter the asymmetric ionic migration spectrometer 1 of High-Field.
Gas flow process: by quality of regulation flow controller 3(MFC1) and mass flow controller 4(MFC2) control the ratio of sample gas and carrier gas.Utilize asepwirator pump to produce the circulation carrier gas, bring FAIMS spectrometer (being the asymmetric ionic migration spectrometer of High-Field) into from headspace sampling device suction sample gas and detect, obtain data-signal.Contrast contains the sample of concentration known melamine or plasticiser and the data-signal of pure samples, determines the characteristic signal of melamine or plasticiser, is kept in the software database.Above data-signal all can convert spectrogram to by software, is shown by LCDs or computer.When detecting unknown sample, software is sought the data of acquisition and the contrast in the database characteristic signal and is also judged whether unknown sample meets food safety requirements.
The melamine testing process
(1) background detects: the metal anemostat is put into the headspace sampling device, open gas circuit, flow 1600ml/min is heated to 150 ℃, the testing background signal.
(2) the pure product of melamine detect: accurately take by weighing 50ug melamine standard items on electronic balance.Add in the metal tube anemostat, the metal anemostat is put into the headspace sampling device, open gas circuit, be heated to 150 ℃, test.
(3) plain chocolate sample detection: pipette the 0.05ml milk sample, add in the metal anemostat, heat 10min evaporate to dryness sample down at 90 ℃.Be warming up to 150 ℃, begin to detect.
(4) adding the pure product of melamine in the plain chocolate detects: accurately take by weighing melamine 0.5mg and add in the 200g milk, stir and evenly mix ultrasonic 30min in ultrasonic cleaning machine.Pipette the 0.05ml sample and add in the metal anemostat, heat 10min evaporate to dryness sample down at 90 ℃.Be warming up to 150 ℃, begin to detect.
(5) powdered milk sample detects: take by weighing 20.0g milk powder at electronic balance, add the 50ml ultrapure water and stir and evenly mix ultrasonic 30min in ultrasonic cleaning machine.Pipette the 0.05ml sample and add in the metal anemostat, heat 10min evaporate to dryness sample down at 90 ℃.Be warming up to 150 ℃, begin to detect.
(6) adding the pure product of melamine in the milk powder detects: take by weighing melamine 0.05mg and add in the 20.0g milk powder, add the 50ml ultrapure water and stir and evenly mix ultrasonic 30min in ultrasonic cleaning machine.Pipette the 0.05ml sample and add in the metal anemostat, heat 10min evaporate to dryness sample down at 90 ℃.Be warming up to 150 ℃, begin to detect.
Testing conditions:
P?：0.04bar
MFC：1600?mL/min
T?：150℃。
The plasticiser testing process:
Sample pretreating method:
Get the pure product of plasticiser, need not pre-service;
Get the liquor sample, need not and handle;
(1 μ L) pipettes plasticiser 0.9 μ L with microsyringe, injects 250 mL volumetric flasks, and electronic balance takes by weighing liquor, pour in the volumetric flask, and mixing, the DINP liquor solution (GB) of 9.0 mg/kg is namely prepared successfully.
Sample injection method
Pipette 1 μ L plasticiser sample with microsyringe (1 μ L), inject the headspace sampling device, under 150 oC conditions, detect;
Pipette 1000 μ L liquor samples, 90 oC(4 h with liquid-transfering gun (100～1000 μ L))+120 oC(5 min) evaporate to dryness under the condition, detect under 150 oC conditions;
Pipette the liquor solution of 1000 μ L plasticisers, 90 oC(4 h with liquid-transfering gun (100～1000 μ L))+120 oC(5 min) evaporate to dryness under the condition, detect under 150 oC conditions.
Claims (1)
1. food safety rapid detecting equipment based on the asymmetric ion mobility spectrometry technology of High-Field, it is characterized in that: comprise the asymmetric ionic migration spectrometer of High-Field, the carrier gas outlet of the asymmetric ionic migration spectrometer of High-Field is connected with asepwirator pump, asepwirator pump and first mass flow controller that lays respectively on two branch roads, second mass flow controller connects, set gradually activated charcoal/molecular sieve purification device behind first mass flow controller, active carbon filtering device, gas passage behind the active carbon filtering device with converge from the air flue of headspace sampling device, and enter the asymmetric ionic migration spectrometer of High-Field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320232205.3U CN203224476U (en) | 2013-05-02 | 2013-05-02 | Rapid food safety detection equipment based on high-field asymmetric ion mobility spectrometry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320232205.3U CN203224476U (en) | 2013-05-02 | 2013-05-02 | Rapid food safety detection equipment based on high-field asymmetric ion mobility spectrometry |
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| CN203224476U true CN203224476U (en) | 2013-10-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499633A (en) * | 2013-10-15 | 2014-01-08 | 无锡艾科瑞思产品设计与研究有限公司 | Method for fast detecting melamine in milk powder based on saturated milk solution |
| CN105004782A (en) * | 2015-07-13 | 2015-10-28 | 天津出入境检验检疫局动植物与食品检测中心 | Method for fast detecting fumigation agent bromomethane residues in foods by headspace sample injection and ion mobility spectrometry |
-
2013
- 2013-05-02 CN CN201320232205.3U patent/CN203224476U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499633A (en) * | 2013-10-15 | 2014-01-08 | 无锡艾科瑞思产品设计与研究有限公司 | Method for fast detecting melamine in milk powder based on saturated milk solution |
| CN103499633B (en) * | 2013-10-15 | 2015-10-21 | 无锡艾科瑞思产品设计与研究有限公司 | Based on the method for quick of melamine in the milk powder of saturated milk solution |
| CN105004782A (en) * | 2015-07-13 | 2015-10-28 | 天津出入境检验检疫局动植物与食品检测中心 | Method for fast detecting fumigation agent bromomethane residues in foods by headspace sample injection and ion mobility spectrometry |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20160502 |