CN2762114Y - Quick investigating instrument for sulfur dioxide in food and medicine - Google Patents
Quick investigating instrument for sulfur dioxide in food and medicine Download PDFInfo
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- CN2762114Y CN2762114Y CN 200420122171 CN200420122171U CN2762114Y CN 2762114 Y CN2762114 Y CN 2762114Y CN 200420122171 CN200420122171 CN 200420122171 CN 200420122171 U CN200420122171 U CN 200420122171U CN 2762114 Y CN2762114 Y CN 2762114Y
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- colorimetric
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Abstract
The utility model relates to an instrument for quickly detecting the sulfur dioxide in food and medicine. The utility model comprises a shell whose upper surface is provided with a plurality of keys and a liquid display screen. A power supply controlling switch, an RS232/USB interface and a power supply interface are arranged outside the shell. The utility model is characterized in that a color comparison pool, a light source/monochromatic device, a photoelectric detecting device, a microprocessor and a chargeable power supply are arranged in the shell. The upper surface of the shell is provided with a fixing ring of the color comparison pool, and a color comparison bottle is arranged in the color comparison pool. The utility model can quickly, conveniently, accurately and quantitatively detect the sulfur dioxide content in food and medicine on site.
Description
Technical field
The utility model relates to a kind of portable sensitivity, easy, express-analysis instrument, is specifically related to a kind of detecting instrument that is used for fast-field evaluation food and medicine content of sulfur dioxide.
Background technology
Food-safety problem is the significant problem that is related to people ' s health, more and more causes the concern of the whole society.Particularly in recent years, a series of world-shaking food pollution incidents (as rabid ox disease, dioxin, aftosa etc.) take place in the world in succession, make the security of food become the focus that people pay close attention to, caused the great attention of relevant international organization, mechanism and national governments.Simultaneously, the research and development of food security Fast Detection Technique and detecting instrument obtain the great attention of various countries relevant department too.A lot of method for quick are included into each national standard method.U.S. AOAC has adopted a lot of microbial rapid detection technology, but majority is the ELISA method, and PCR method also is applied in microorganism detection.
The field quick detection that is used at present food and medicine content of sulfur dioxide abroad mainly adopts test paper method, electrode method and chemical reagent cassette method.These methods exist problems such as accuracy is low, poor anti-interference.At home, the method that detects content of sulfur dioxide in food and the medicine mostly adopts the GB photometry.This method can only be carried out under laboratory condition, and the analysis speed of each project is greatly about 3～4 hours.And the instrumentation that is used for on-the-spot fast quantification detection food and medicine content of sulfur dioxide still is not reported.
Summary of the invention
At the problems referred to above, fundamental purpose of the present utility model provide a kind of can be quick, easy, in situ quantitation is measured content of sulfur dioxide in food and the medicine exactly fast measuring instrument.
For achieving the above object, food and medicine sulfur dioxide rapid test instrument provided by the utility model, comprise housing and be installed in light source, monochromator, colorimetric pool, photoelectric detector, microprocessor, the rechargable power supplies in the housing and be installed in the outside top panel of casing LCDs, colorimetric pool set collar, confirm button, return button, on turn over button, turn over the power control switch of button, top, casing external right side, the power interface and the RS-232/USB interface at two ends, the left and right sides, the outside back of casing down.
Described colorimetric pool is a single channel reaction colorimetric pool, and the xsect of its passage body is a hexagon, and the top is for circle and be provided with bayonet socket.
Described light source and monochromator are the light emitting diode of a plurality of setting wavelength.
Described light emitting diode is super bright light emitting diode, linearly stagger to be arranged on a side of described colorimetric pool passage body, and described photoelectric detector is the optical frequency conversion sensor, with the opposite side of similar number corresponding to described passage body.
Described colorimetric bottle is the glass colorimetric bottle of band scale, and its injection port is provided with sealing-plug, and it is sealed that described colorimetric bottle outer wall closes on the injection port correspondence, to lock described colorimetric bottle.
The utility model adopts technique scheme, and its distinguishing feature is:
1, adopts national standard method (GB/T5009.34-2003).
2, be suitable for the quantitative measurement of sulphuric dioxide in on-the-spot food and the medicine.
3, adopt Single-chip Controlling, have measurement, setting, record, preservation and spectroscopic data statistical treatment function.Be provided with RS-232/USB interface and PC communication, functions such as Online Help, automaticity height.
4, kit colour developing, sample and reagent dosage are few, prevent and have reduced secondary pollution.
5, screen Chinese shows, the man-machine interactive operation, and volume is little, in light weight, easy to carry.
The utility model is applicable to that the fast quantification of content of sulfur dioxide in food such as colorimetry for quick analysis white granulated sugar, rock sugar, fructose, maltose, bean vermicelli, bamboo shoots, preserved fruit, dry fruit, dry vegetalbe, mushroom, canned mushroom, the fruit of Chinese magnoliavine, grape wine, fruit wine, liquid glucose, black gallon juice, Chinese herbal medicine, Chinese patent drug, health products and the medicine detects.
Description of drawings
Fig. 1 is the utility model external structure synoptic diagram
Fig. 2 is the utility model principle square frame intention
Fig. 3 is the utility model colorimetric pool structural representation
Fig. 4 is the utility model colorimetric bottle structural representation
Fig. 5 is the utility model basic circuit diagram
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described:
The food and medicine sulfur dioxide rapid test instrument that the utility model proposes is based on that the reaction of sulphuric dioxide and developer generates colored compound in the sample, the colorimetric analysis method that the principle that the visible light selectivity is absorbed according to this compound is set up.
As shown in Figure 1 and Figure 2, the utlity model has a casing 1, the upper surface of casing 1 be provided with LCDs 2, colorimetric pool set collar 3, return button 4, confirm button 5, on turn over button 6, the top of turning over button 7 and casing 1 right flank down is provided with power control switch 8, the two ends, the left and right sides of casing 1 trailing flank are respectively arranged with power interface 9 and RS-232/USB interface 10.
Be provided with light source/monochromator 11, colorimetric pool 12, photoelectric detector 13, microprocessor 14, rechargable power supplies 15 in the casing 1.
As shown in Figure 3, colorimetric pool 12 has the colorimetric pool passage 16 of a circle, and its diameter is 19 millimeters, and the degree of depth is 35 millimeters.The outside of circular colorimetric pool passage 16 is the colorimetric pool housing 18 of hexagonal structure, be provided with a bayonet socket 17 at the round tip edge of colorimetric pool passage 16, the circular inner ring of colorimetric pool passage 16 protrudes upward predetermined altitude (as 9 millimeters) and is provided with the screw thread (not shown) that is connected with colorimetric pool set collar 3.Circular configuration and hexagonal structure are connected as a single entity and form colorimetric pool housing 18.As shown in Figure 3, the sealing of the bottom of colorimetric pool 12 forms single channel reaction colorimetric pool with this, is provided with light source/monochromator 19 and run through the inside and outside on the hexagon wall of colorimetric pool housing 18.
Light source/monochromator is the super bright light emitting diode 19 of some, not only makes light source but also make monochromator, linearly is arranged on adjacent three sides of hexagon wall.In the present embodiment, adopt the super bright light emitting diode that day is inferior and Toyota Company produces of Japan, luminance parameter is more than 1000mcd, wavelength is respectively 400nm, 405nm, 408nm, 410nm, 412nm, 420nm, 430nm, 440nm, 450nm, 460nm, 470nm, 480nm, 490nm, 500nm, 510nm, 520nm, 530nm, 540nm, 550nm, 560nm, 570nm, 580nm, 590nm, 600nm, 610nm, 620nm, 630nm, 640nm, 650nm, 660nm, 830nm, 860nm, 910nm, 925nm, 940nm, 950nm, 960nm, 980nm, 1006nm, 1025nm, for satisfying the wavelength needs of different detection methods to light source/monochromator 11, present embodiment is selected the light emitting diode of two kinds of wavelength in the above-mentioned wavelength for use, be arranged on two adjacent walls tapered alignment light photodetector 13.Light source/monochromator 11 adopts continuously or the pulse mode power supply.These feed circuit are custom circuit, this no longer auspicious stating.Photoelectric detector 13 is the integrated electro sensor 20 of some, is installed in three other adjacent sides of hexagon wall.In the present embodiment, the integrated electro sensor that photoelectric detector 13 adopts American TI Company to produce, model is TSL201, TSL202, TSL203, TSL204, TSL205, TSL206, TSL207, TSL208, TSL209, TSL220, TSL230, TSL235, TSL245, TSL250, TSL251, TSL252, TSL253, TSK254, TSL255, TSL256, TSL257, TSL258, TSL259, TSL260, TSL261, TSL262.Certainly, the utility model also can adopt other to have the integrated electro sensor of equal effect.Photoelectric detector 13 with detected data transmission to microprocessor 14.
Microprocessor 14 is used for receiving the detection signal of photoelectric detector 13 and carries out data processing by microprocessor 14, and microprocessor 14 saves as 64K for P51, P52 series that PHILIPS Co. produces in its major parameter.Show by LCDs 2 by microprocessor 14 The results of data processing, simultaneously, also the data of storage can be passed through RS-232/USB interface 10 and peripheral PC communication, provide analysis result by PC.
This use new type microprocessor 14, light source/monochromator 11, photoelectric detector 13, rechargable power supplies 15 and LCDs 2, return button 4, confirm button 5, on turn over button 6, the circuit that turns over electrical parts such as button 7 and power control switch 8, power interface 9 and RS-232/USB interface 10 down is connected and can carries out with reference to figure 5, this circuit is only for realizing a kind of physical circuit connected mode of aforementioned functional, not as the restriction that other possible circuit is connected.
The container that the utility model is placed sample is a colorimetric bottle 21, and it is placed in the colorimetric pool passage 16.Colorimetric bottle 21 is the cylindrical glass colorimetric bottle, as shown in Figure 4, has scale on the bottle wall.The injection port place of colorimetric bottle 21 is provided with a sealing-plug 22 and closely covers with colorimetric bottle 21, prevents that the solution in the colorimetric bottle from overflowing.At the contiguous injection port of colorimetric bottle 21 outer walls place, be provided with circular orientation device 23, the material that circular orientation device 23 adopts is plastics or aluminium, with colorimetric bottle 21 outer walls to be threaded, establish dop 24 in the circular orientation device 23, cooperate with colorimetric pool bayonet socket 17 colorimetric bottle 21 is locked in the colorimetric pool 12.During use, colorimetric bottle 21 directly inserts in the colorimetric pool 12, and the colorimetric pool hole that the termination of sealing-plug 22 is reserved is big slightly, can be used for hermetically-sealed instrument to prevent that parasitic light from entering in the colorimetric pool passage 16.Here, colorimetric bottle 21 can take out at any time and add developer and testing sample, makes chromogenic reaction finish the colorimetric pool of putting into detector afterwards again in colorimetric bottle 21 and carries out colorimetric estimation.
The utility model unites two into one light source and monochromator, light source/monochromator 11 can send the monochromatic light of setting wavelength, and be radiated on the photoelectric detector 13, with change in optical signal is electric signal, input to microprocessor 14, microprocessor 14 exports data to display screen 2 through computing, just can directly read measurement data.Simultaneously, microprocessor 14 sends instruction, writes down measurement result, and passes through RS-232/USB interface 10 and PC communication by the data of acknowledgement key 5 storages, provides analysis result by PC.
Introduce using method of the present utility model below in conjunction with concrete operations, with the example that is determined as of sulphuric dioxide in the food and medicine.
Sample preparation
Water-soluble solid sample (as white granulated sugar, rock sugar, fructose, maltose etc.)
Accurately take by weighing the even sample of 1.00 grams with electronic platform scale, dissolve with low amounts of water, place 10 milliliters of colorimetric bottles, add a sulphuric dioxide reagent (five), shake up, leave standstill an adding sulphuric dioxide reagent (six) after 5 minutes, add 2.00 milliliters of sulphuric dioxide reagent () with pipettor again, be diluted with water to 10 milliliters, it is standby to shake up the back.
Other solid sample (as bean vermicelli, bamboo shoots, preserved fruit, dry fruit, dry vegetalbe, mushroom, canned mushroom, the fruit of Chinese magnoliavine, Chinese herbal medicine etc.),
An amount of solid sample is moved in the pulper container, install, blend 1 minute sample and be Powdered according to its instructions.
The GB improved method
Accurately take by weighing 1.00 and restrain the sample that blends mixing, place 20 milliliters of extraction flasks, with low amounts of water that sample is wetting, accurately add 2.00 milliliters of sulphuric dioxide reagent () with pipettor then, stir, soak more than 4 hours with mixing needle, add each one of 2.00 milliliters of reagent () and reagent (seven), reagent (eight) again, thin up to 20 milliliter scale mark place, with mixing needle stir place clarification after, filter behind the supernatant liquor standby with the needle-based filtrator again.
Fast first sieve method
Accurately take by weighing 1.00 and restrain the sample that blends mixing, place 20 milliliters of extraction flasks, with low amounts of water that sample is wetting, accurately add 4.00 milliliters of sulphuric dioxide reagent () with pipettor then, thin up to 10 milliliter, stir with mixing needle, put into the sample extraction instrument (after GDYQ-701S sample extraction instrument adds 500 ml distilled waters in advance or gets the instrument deionized water, put into plastic basket again, compressing plastic basket with the brown vinyl cover in 4 holes then fixes) 10 minutes (once getting final product) of extraction by carrying key, taking-up adds reagent (seven), each one of reagent (eight), thin up to 20 milliliter scale mark place, stir with mixing needle, place the clarification of 15 minutes solution after, filter behind the supernatant liquor standby with the needle-based filtrator again.
Fluid sample (as grape wine, fruit wine, liquid glucose, black gallon juice, health-care food oral liquid etc.)
Accurately pipette 1.00 milliliters of liquid samples (density of fluid sample need be set), place 10 milliliters of colorimetric bottles, accurately add 2.00 milliliters of sulphuric dioxide reagent () with pipettor again, be diluted with water to 10 milliliters, shake up back standby (do not filter the back use if solution is not clarified available needle-based filtrator, filter method is identical with solid sample).
Needle-based filtrator using method:
Plastic union pipe is installed in the syringe needle position, draw about 5 milliliters of solution to be filtered, take off plastic union pipe, install needle-based filtrator (good and sound filter membrane on filtrator in advance, the disposable use of filter membrane, it is reusable that filtrator is cleaned the back, filters in a clean and dry colorimetric bottle of crossing solution to be measured standby.The mensuration of sulphuric dioxide:
Sample: accurately pipette with 100～500 microlitre pipettors in the colorimetric bottle 1 of solution 0.50 to be measured or 0.10 milliliter of extremely dry mistake, pipette sulphuric dioxide reagent (one) with the long-neck plastic dropper and be diluted to 10 milliliters of scale mark places.Shake up after adding each one of sulphuric dioxide reagent (two), (three), (four) again, leave standstill colour developing and measure after 20 minutes.
Reagent blank: pipette the 10 milliliter scale mark places of sulphuric dioxide reagent (one) to the dry colorimetric bottle of crossing 2 with the long-neck plastic dropper.Shake up after adding each one of sulphuric dioxide reagent (two), (three), (four) again, leave standstill colour developing and measure (sample and reagent blank will be grasped simultaneously and do) after 20 minutes.Screw colorimetric bottle 1 and 2 steady arms, clean the colorimetric bottle outer wall, reagent blank colorimetric bottle 2 is put into the colorimetric bottle groove lock.
With GDYQ-801SB food sulfur dioxide rapid test instrument attaching plug one end and civil power (220V, 50Hz) or vehicle power connect, the other end is connected with instrument.
After pressing " ON/OFF " key, by " selections " key, cursor is moved on to A (National Standard Method), display screen shows that automatically " all set " press " school is zero " key, and it is zero that instrument is finished blank school automatically.
Take out reagent blank colorimetric bottle 2, sample colorimetric bottle 1 is put into cell lock.By " direct-reading " key, display screen demonstrates the concentration value of measured sample automatically.
The method of the also available self-control working curve of this instrument is measured sulphuric dioxide, and method of operating is as follows:
Configuration sulphuric dioxide standard solution is done the absorption curve histogram that wavelength is required wavelength, and instrument demonstrates the solution maximum absorption wavelength of sulphuric dioxide sample automatically.(preparation of standard model and experiment condition etc. are according to GB GB/T5009.34-1996)
Selected wavelength measurement is after the maximum absorption wavelength of sulphuric dioxide sample is selected, and measures a series of absorbances of variable concentrations sulphuric dioxide standard solution sample under this wavelength, produces the working curve of absorbance and concentration relationship.
The start back " measurement pattern selection " picture occurs by " affirmation " key on the display screen.
By " selection " key, cursor is moved on to C, select wavelength by " affirmation " key.
By " selection " key, cursor is moved on to selected absorbing wavelength place, by " affirmation " key, display screen shows " all set " automatically then.
Reagent blank colorimetric bottle 2 is put into the colorimetric bottle groove to be locked.By " school zero " key, instrument is then finished blank school zero automatically, and demonstration " finish in school zero ".
Take off colorimetric bottle 2, the ascending respectively sulphuric dioxide standard solution with variable concentrations is poured in the colorimetric bottle 1, putting into the colorimetric bottle groove then locks, by " direct-reading " key, then display screen demonstrates the absorbance and the transmitance of variable concentrations sulphuric dioxide standard solution respectively, according to the shown absorbance (A) that goes out of variable concentrations sulphuric dioxide standard solution, produce the working curve of absorbance and sulfur dioxide concentration.
Sample solution after the colour developing is poured in the colorimetric bottle 1, inserted in the colorimetric bottle groove and lock colorimetric bottle.
By " direct-reading " key, demonstrate the absorbance of sulphuric dioxide in the sample solution, by the working curve of sulphuric dioxide concentration of standard solution and absorbance, the content of sulphuric dioxide in the sample solution as can be known.
Claims (6)
1, a kind of food and medicine sulfur dioxide rapid test instrument, comprise a casing, described casing upper surface is provided with plurality of keys and LCDs, described casing outside also is provided with power control switch and power interface, described casing inside is provided with colorimetric pool, light source/monochromator, photoelectric detector, microprocessor, rechargable power supplies, it is characterized in that: described casing upper surface is provided with the colorimetric pool set collar, is placed with colorimetric bottle in the described colorimetric pool; Described casing outside also is provided with the RS-232/USB interface.
2, food and medicine sulfur dioxide rapid test instrument as claimed in claim 1 is characterized in that: described colorimetric pool is a single channel reaction colorimetric pool, and the xsect of its passage body is a hexagon, and the top is for circle and be provided with bayonet socket.
3, food and medicine sulfur dioxide rapid test instrument as claimed in claim 1 or 2, it is characterized in that: described light source/monochromator is the light emitting diode of a plurality of setting wavelength.
4, food and medicine sulfur dioxide rapid test instrument as claimed in claim 3, it is characterized in that: described light emitting diode is super bright light emitting diode, linearly stagger and be arranged on a side of described colorimetric pool passage body, and described photoelectric detector is a photoelectric sensor, places the opposite side of described passage body with the similar number correspondence.
5, food and medicine sulfur dioxide rapid test instrument as claimed in claim 1 or 2, it is characterized in that: described colorimetric bottle is the glass colorimetric bottle of band scale, its injection port is provided with sealing-plug, described colorimetric bottle outer wall closes on the injection port place and is provided with steady arm, establish dop in the described steady arm, described dop is corresponding sealed with described colorimetric pool limited bayonet, to lock described colorimetric bottle.
6, food and medicine sulfur dioxide rapid test instrument as claimed in claim 3, it is characterized in that: described colorimetric bottle is the glass colorimetric bottle of band scale, its injection port is provided with sealing-plug, described colorimetric bottle outer wall closes on the injection port place and is provided with steady arm, establish dop in the described steady arm, described dop is corresponding sealed with described colorimetric pool limited bayonet, to lock described colorimetric bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420122171 CN2762114Y (en) | 2004-12-30 | 2004-12-30 | Quick investigating instrument for sulfur dioxide in food and medicine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420122171 CN2762114Y (en) | 2004-12-30 | 2004-12-30 | Quick investigating instrument for sulfur dioxide in food and medicine |
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| Publication Number | Publication Date |
|---|---|
| CN2762114Y true CN2762114Y (en) | 2006-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420122171 Expired - Fee Related CN2762114Y (en) | 2004-12-30 | 2004-12-30 | Quick investigating instrument for sulfur dioxide in food and medicine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2762114Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482494B (en) * | 2009-02-18 | 2011-05-25 | 长春吉大·小天鹅仪器有限公司 | Adulterated peanut oil detecting instrument and method thereof |
| CN102590193A (en) * | 2012-02-24 | 2012-07-18 | 山西大学 | Method for measuring sulfur dioxide content in food |
| CN106770236A (en) * | 2016-12-06 | 2017-05-31 | 百奥森（江苏）食品安全科技有限公司 | A kind of detection of veterinary drugs in food operating platform |
| CN110907440A (en) * | 2019-12-02 | 2020-03-24 | 陕西瑞奇生物科技有限公司 | Rapid quantitative detection method for sulfur dioxide |
-
2004
- 2004-12-30 CN CN 200420122171 patent/CN2762114Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101482494B (en) * | 2009-02-18 | 2011-05-25 | 长春吉大·小天鹅仪器有限公司 | Adulterated peanut oil detecting instrument and method thereof |
| CN102590193A (en) * | 2012-02-24 | 2012-07-18 | 山西大学 | Method for measuring sulfur dioxide content in food |
| CN102590193B (en) * | 2012-02-24 | 2013-07-10 | 山西大学 | Method for measuring sulfur dioxide content in food |
| CN106770236A (en) * | 2016-12-06 | 2017-05-31 | 百奥森（江苏）食品安全科技有限公司 | A kind of detection of veterinary drugs in food operating platform |
| CN110907440A (en) * | 2019-12-02 | 2020-03-24 | 陕西瑞奇生物科技有限公司 | Rapid quantitative detection method for sulfur dioxide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060301 Termination date: 20121230 |