CN1900694A - Poly parameter food safety quick analytic instrument - Google Patents
Poly parameter food safety quick analytic instrument Download PDFInfo
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- CN1900694A CN1900694A CN 200510085072 CN200510085072A CN1900694A CN 1900694 A CN1900694 A CN 1900694A CN 200510085072 CN200510085072 CN 200510085072 CN 200510085072 A CN200510085072 A CN 200510085072A CN 1900694 A CN1900694 A CN 1900694A
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Abstract
The rapid analysis instrument includes body case, fixed ring of color comparison pool, multiple push button keys, liquid crystal screen, RS232 interface, as well as color comparison pool, color comparison bottle, monochromatic source, photoelectric detector, and microproceesor etc. The instrument also includes printer embedded in body case, and heater for sample. The disclosed instrument is capable of measuring content of following objects in food: cadmium, chrome, nickel, rare earth, nitrite, formaldehyde, amylase, toxicity of pesticide residue, vitamin E, trimethylamine etc.
Description
Technical field
The present invention relates to a kind of easy, sensitive, express-analysis instrument, be specifically related to a kind of poly parameter food safety quick analytic instrument device that on-the-spot fast quantification detects food poisonous and harmful substance content that is used for.
Background technology
Along with the deepening continuously and develop of economical operation globalization, food-safety problem more and more receives the concern of national governments, international organization, industry organization, industry specialists and even general public.Ensuring food safety becomes the basis that ensures existence and protection human life health, becomes the basis of improving economical operation and human life quality.Simultaneously, the Fast Detection Technique that ensures food safety obtains the great attention of each relevant departments too, and a lot of method for quick also are included into each national standard method.The objectionable impurities kind that food security relates to is a lot, and the present invention mainly detects cadmium in the food, chromium, nickel, germanium, selenium, aluminium, antimony, arsenic, copper, mercury, zinc, plumbous, tin, fluorine, phosphorus, rare earth, sulphuric dioxide, hydrogen peroxide, borax, nitrite, nitrate, formaldehyde, sodium formaldehyde sulfoxylate, peroxide value, phytic acid, amino-acid nitrogen, sucrose, diastase, hydroxymethylfurfural, sesame oil purity, residual toxicity, caffeine, vitamin B6, vitamin A, vitamin E, ascorbic acid, trimethylamine, MDA, protein first tea prestige, free gossypol, the content of sodium cyclohexylsulfamate.
In 109 kinds of chemical elements, 83 kinds is metal, and density is referred to as heavy metal at the metal more than 5, we can say that metal has become the part of our life.The normal heavy metal pollution of saying, the significant heavy metals of bio-toxicity such as the mercury that mainly is meant, cadmium, lead, chromium and metalloid arsenic.Heavy metal enters in the animals and plants by irrigation, absorption etc. with discharges such as waste water, waste gas, by food chain and bioconcentration, and enrichment in food.Heavy metal is energy and protein and the strong interaction of various enzyme generation in human body, they are lost activity, also may in some organ of human body, accumulate,, can cause harm such as human body acute poisoning, subacute poisoning, slow poisoning if surpass the tolerant limit of human body.Heavy metal pollution is the stealthy killer who threatens human body health, if the human control of ignoring heavy metal pollution is swallowed the most at last from the bitter pill of making.
Sulphuric dioxide has discoloration on the one hand, can bleach food, and sulphuric dioxide has reducing action on the other hand, can suppress oxidasic activity.As food additives, it is widely used in the food.As the preservative treatment of dried fruit, preserved fruit, the fresh-retaining preserving of fruit grape, mushroom to protect look anticorrosion etc.The long-term edible food that contains excessive sulphuric dioxide can not only destroy vitamin B1, can also make calcium form insoluble substance, influences the absorption of human body to calcium.Simultaneously, sulphuric dioxide is met water and is generated sulphurous acid, and people's stomach and intestine are had spread effect, if what use is industrial sulphur, also serious intoxicating phenomenon might take place.
Hydrogen peroxide has strong oxidisability, as the production and processing auxiliary agent, has disinfection, functions such as bleaching.Can there be huge potential threat in the medium-term and long-term residual excessive hydrogen peroxide of food to health.
After adding borax in the food, can make food color beautiful, seeming can be fresher, the softer cunning of quality, and the toughness height boils for a long time and does not stick with paste.Borax is not a kind of mutatis mutandis antiseptic in fact, and borax can make the people produce toxicity symptom, comprises nauseating, vomiting, bloody flux and stomachache.Baby and child are easier to be subjected to the borax toxic effect, even serious meeting is to cancer.
Nitrite can be oxidized to methemoglobin to the low Ferri-hemoglobin that carries oxygen in the blood, thereby causes the toxicity symptom of anoxic, makes people's heartbeat accelerate dizziness and nausea, digestive discomfort.In addition, nitrite and nitrate can be converted into nitrosamine in human body, and nitrosamine is a kind of carcinogen, and is very big to human health damage.
Formaldehyde is the protoplasm material that a kind of toxicity is very strong, destroy biological cell protein, can cause illness such as human allergy, enteron aisle irritant reaction, food poisoning.Formaldehyde is that country prohibites the non-food stuff adjuvant that adds in the food.Eat the food that contains formaldehyde and can directly produce toxic reaction, the lighter's dizziness, cough, vomiting, Upper abdominal pain, stupor, shock can appear in weight person; Formaldehyde is to the intense stimulus effect of people's skin and respiratory apparatus mucous membrane, and to the central nervous system of human body, especially there are strong effect in the organs of vision, bronchus and lung; The mucous membrane of damage people's oral cavity, pharynx, esophagus, stomach.
Sodium formaldehyde sulfoxylate (chemical name is a rongalite) has reducing action, at the industrial bleaching agent that is used as.Country expressly provides, forbids sodium formaldehyde sulfoxylate is used for food.Can cause pulmonary edema after edible, liver, the nephremia and blood vessel peripheral edema also have certain influence to optic nerve, are a kind of potential carcinogenic substances.
Current, the phenomenon that honey is mingled is serious, and according to investigations, in the honey of basic unit purchase, in the sample of mingling of appearance, in the sample that sucrose is mingled, the content of sucrose is many between 10-28%, have in addition up to more than 50%.
The degree of becoming sour of acid value and peroxide value reflection grease is the main sanitary index of sesame oil product, and its value is high more, and it is just serious more to become sour.The grease that becomes sour can cause human intestines and stomach's discomfort, and the body enzyme system is had detrimental effect, and some product that becomes sour has carcinogenesis.
Total acid is meant non-dissociated acid in the food and the concentration sum of the acid that dissociated.Usually represent with the percentage concentration of certain representational acid, represent with citric acid as the total acid result in the dry fruit food product.Its total acid mainly exists with organic acid (malic acid, tartrate etc.) form, if total acid is too high, illustrates that product might become sour and can not eat under microbial action.
Amino-acid nitrogen is one of characteristic index of soy sauce, refers to the content of the nitrogen element that exists with amino acid form.It has represented the height of amino acid content in the soy sauce.Amino acid nitrogen content is high more, and quality of soy sauce is good more, and delicate flavour is dense more.In industry standard, the quality of soy sauce grade mainly is to determine according to the content of amino-acid nitrogen in the soy sauce.
Peroxide value is meant the mM quality of superoxide in the 100 gram greases.Peroxide value is to weigh the become sour important sanitary index of degree of Food Oxidation, and the grease in the food is hydroperoxides at the product of oxidative rancidity initial period, and being reflected on the sanitary index is the increase of peroxide value.
Vegetables are people's requisite food of eating three meals a day, yet in recent years, development along with vegetables, the generation and the spreading trend of vegetables disease and pest constantly increase the weight of, and the resistance day of disease and pest is super serious, and the vegetable grower of department infinitely strengthens the use of chemical pesticide, even use is hypertoxic, high residual hazard agricultural chemicals, many objectionable impuritiess are residual among victual, cause pesticide concentration to exceed standard, and the healthy of people and ecologic environment balance in serious threat.
Caffeine is a kind of alkaloid that extract from tealeaves, coffee fruit, and appropriateness is used the effect that the fatigue dispeled, excitor nerve are arranged, and is used for the treatment of neurasthenia and stupor recovery clinically.But heavy dose of or long-term use also can cause damage to human body, and particularly it also has habituation.When causing dosage constantly to increase owing to the tolerance of medicine, caffeine just not only acts on cerebral cortex, can also direct excited oblongata, cause that paroxysmal is fainted from fear and bone trembles, important internal organs such as infringement liver, stomach, kidney, bring out diseases such as respiratory inflammation, mammary glands in women knurl, even cause smoker's mentally disabled of future generation, cacomelia.Therefore also be put into the psychotropic substances scope that is subjected to national control.
Vitamin also claims to tie up its life, is the indispensable a kind of nutrient of human body, if lack vitamin in the human body, will suffer from various diseases.Because vitamin follows enzyme participating in the metabolism of human body together, the function of human body is effectively regulated.Vitamin is being applied to popular daily health caring more and more, but a certain vitamin of excessive use is unfavorable to health, and the substantial connection of vitamin and health has become the common focus of academia and fashion world.
Trimethylamine mainly industrially is being used to make surfactant, ion exchange resin, choline salt, is actuating auxin, also as oil, paint stripper, coating and adjuvant.In daily life, protein, amino acid, pluck and blood etc. can be decomposed into trimethylamine through the effect of microorganism or fermentation.Only have little smellyly when trimethylamine is lower than 24.2mg/m3, when concentration increased by 2～10 times, smell increased the weight of, and had strong fish stench, and eyes, nose, throat are had stronger irritation.
All contain this chemical constitution of MDA in the old oils, it can generate polymkeric substance and react with protein and DNA (deoxyribonucleic acid) in the human body, make the structure variation of protein, cause the cell of variant protein matter to lose normal function and to the precancer cell transformation.In addition, the MDA polymkeric substance can hinder duplicating of DNA (deoxyribonucleic acid) and people's ageing process is accelerated.Therefore, animal and vegetable oil is sure not to deposit too of a specified duration, Bian Zhi vegetable and animals oils inedibility.
False sesame oil is very harmful to human body.Generally speaking, the dirty oil that is used to convert false making sesame oil is exactly rough cottonseed oil (claiming living cotton oil again).Edible rough cottonseed oil can cause acute or slow poisoning.This is because contain noxious materials such as a large amount of gossypols, cotton green element in cottonseed, rough cottonseed oil middle cotton aldehydes matter without refining is removed not thorough, and free gossypol is a kind of cytotoxin and nervus vasculairs toxin, can cause the stomach and the kidney damage of human body, also may cause sterility.Therefore, rough cottonseed oil definitely can not eat.
It is a kind of water miscible novel sweetener that honey element has another name called sodium cyclohexylsulfamate, its sugariness is 30-40 times [4] of sucrose, because it is inexpensive, sugariness is high, many substitutes in food as sucrose, but because of it there is no nutritive value, if it is the consumer often beverage or the excessive liver and the nervous system to human body of other food of edible honey element content overproof works the mischief, particularly more obvious to the more weak the old's harm of the ability of metabolism.
Objectionable impurities in the above food has all had a strong impact on people's normal life, and it is very necessary field quick detection to go out these content of harmful, and existing detection means generally only limits to laboratory operation, can not on-the-spot test; Existing on-the-spot detection means also just is confined to the detection of single parameter, and at present, method and the analytical instrument that Multi-parameter Combined Tool is applied to field quick detection together appears in Shang Wuke.
Summary of the invention
At the problems referred to above, fundamental purpose of the present invention provide a kind of can be easy, quick, on-the-spot, the multiparameter express-analysis instrument of safety whether in the detection by quantitative food.
For achieving the above object, poly parameter food safety quick analytic instrument provided by the invention, comprise casing, place the colorimetric pool set collar of casing outer surface, a plurality of button, LCDs, supply socket, power switch and RS232 interface, place colorimetric pool, colorimetric bottle, light source monochromator, photoelectric detector, the microprocessor of casing inside, it comprises also and the printer and the sample heating device of casing setting-in that described printer and sample heating device are electrically connected with microprocessor respectively.
Above-mentioned poly parameter food safety quick analytic instrument, described sample heating device periphery is established calandria, and heat block is established in the bottom, and a plurality of colorimetric bottle bottoming holes are established on top, and other establishes temperature sensor, and this temperature sensor is electrically connected with microprocessor.
Above-mentioned poly parameter food safety quick analytic instrument, described colorimetric pool inside is cylindric colorimetric pool passage, and the outside is the colorimetric pool housing, and described colorimetric pool housing top is right cylinder, and the bottom is a hexahedron, colorimetric pool housing upper cylinder is established external thread; Other establishes a lateral dimension and wants big colorimetric pool set collar than colorimetric pool mounting hole on the casing, and described colorimetric pool set collar is established internal thread.
In the above-mentioned poly parameter food safety quick analytic instrument, described colorimetric pool passage top is provided with bayonet socket, and the corresponding described bayonet socket shape in described colorimetric pool outer wall top is established dop.
In the above-mentioned poly parameter food safety quick analytic instrument, described light source monochromator is super bright light emitting diode, be arranged in a linear and be separately positioned on the adjacent side of hexahedron in the described colorimetric pool housing, and described photoelectric detector is a photoelectric sensor, places a relative side of described hexahedron with the number identical with light emitting diode.
Above-mentioned poly parameter food safety quick analytic instrument, described colorimetric bottle is the vial of band scale, and its injection port is provided with gland bonnet, and the gland bonnet bottom is a step, and the step cross sectional dimensions is greater than described colorimetric pool channel cross-section size.The inner installing of described colorimetric pool gland bonnet sealing gasket.
The distinguishing feature of Multi-parameter Combined Tool food safety quick analytic instrument provided by the invention is:
1, instrument is based on the colorimetric analysis method, makes easy and simple to handlely, and the testing result intuitive is good.
2, adopt Single-chip Controlling, have measurement, setting, record, preservation and data processing function.Be provided with the RS-232/USB interface,, and be provided with functions such as help with the PC on-line communication.The automaticity height.
3, large-screen lc Chinese shows, the man-machine interactive operation.
4, integrated firing equipment and the printing device of being provided with, the convenient use.
5, colorimetric pool and colorimetric bottle all are used and adopt original design in the instrument, guarantee the instrument globality.
6, volume is little, in light weight, easy to use.
The present invention can fast measuring food in cadmium, chromium, nickel, germanium, selenium, aluminium, antimony, arsenic, copper, mercury, zinc, plumbous, tin, fluorine, phosphorus, rare earth, sulphuric dioxide, hydrogen peroxide, borax, nitrite, nitrate, formaldehyde, sodium formaldehyde sulfoxylate, peroxide value, phytic acid, amino-acid nitrogen, sucrose, diastase, hydroxymethylfurfural, sesame oil purity, residual toxicity, caffeine, vitamin B6, vitamin A, vitamin E, ascorbic acid, trimethylamine, MDA, free gossypol, the content of sodium cyclohexylsulfamate.Thereby the assurance food security is applicable to that the fast quantification of above-mentioned substance content described in grain, grease, vegetables, poisonous metal, fruit, flavouring, meat and meat products, aquatic products, breast and other food such as dairy products, egg and egg products, wine, cold drink food, bean product, catsup and pickled vegetables, sugar, honey, cake, tealeaves and adjuvant detects.
Description of drawings
Fig. 1 is an external structure synoptic diagram of the present invention.
Fig. 2 is a heater structure synoptic diagram of the present invention.
Fig. 3 is colorimetric pool structural representation among the present invention.
Fig. 4 is colorimetric bottle structural representation among the present invention.
Fig. 5 is a principle of the invention synoptic diagram.
Fig. 6 is a circuit theory synoptic diagram of the present invention.
(Fig. 6 is divided into two pages, joins about two pages of figure face portion)
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
The present invention proposes the poly parameter food safety analyser and is based in the sample measured matter generates colored compound with the developer reaction behind extraction and cleaning, the instrument of a kind of colorimetric analysis that the principle that visible light is absorbed selectively according to this compound is set up.
As Fig. 1, Fig. 3, shown in Figure 4, the present invention has casing 1, and the front surface of casing 1 is provided with LCDs 8, return key 91, acknowledgement key 92, upturning key 93, downturning key 94.Casing upper surface is provided with mini-printer 5, colorimetric pool 6 putting holes, sample heating device 7, power control switch 4, supply socket 3 and RS-232 interface 2 that right side of face below, casing 1 back is provided with.Be provided with light source/monochromator 33, colorimetric bottle 41, photoelectric detector 32 in the casing 1.
As shown in Figure 2, sample heating device 7 is the electric heating equipment of a porous, establishes calandria 21 at well heater 7 all side rings, and heat block 22 is established in the bottom, and a plurality of colorimetric bottle bottoming holes 24 are established on top.Temperature sensor 23 also is installed in the well heater 7, and sensor 23 is used to detect the well heater temperature inside.
As shown in Figure 3 and Figure 4, the outside of colorimetric pool 6 is a colorimetric pool housing 31, and its top is cylindrical structure, and the bottom is the hexahedron structure.Colorimetric pool 6 inside have a columned colorimetric pool passage 35, and its diameter cooperates with colorimetric bottle 41 crest clearances shown in Figure 4.Be provided with a bayonet socket 36 on the top of colorimetric pool passage 35, colorimetric pool housing 31 upper cylinder have the external thread (not shown), be threaded with a colorimetric pool set collar 34 by this external thread, these set collar 34 lateral dimensions want big than the 6 putting hole apertures of colorimetric pool on the casing 1, after colorimetric pool 6 inserted casing 1, again this set collar 34 is tightened by screw thread and colorimetric pool housing 31 upper external screw threads, so that colorimetric pool 6 is fixedly connected in the casing 1.
The container that the present invention places sample is a colorimetric bottle 41, as shown in Figure 4.Colorimetric bottle 41 is the cylindrical glass bottle, has scale above the bottle wall.Colorimetric bottle 41 is placed in the colorimetric pool passage 35.Colorimetric bottle injection port place is provided with a colorimetric bottle cap 43, there is a step bottle cap 43 lower ends, the step lateral dimension is greater than the lateral dimension of colorimetric pool passage 35, when measuring, can prevent that parasitic light from entering in the colorimetric pool, a silicone rubber seal pad 44 is arranged in the bottle cap, when screwing bottle cap 43, can closely cooperate, overflow to prevent the solution in the colorimetric bottle 41 with colorimetric bottle 41.43 outer wall edges establish dop 42 at the colorimetric bottle cap, and are corresponding with bayonet socket 36 on the colorimetric pool passage 35, so that colorimetric bottle 41 is positioned in the colorimetric pool passage 35.Here, colorimetric bottle 41 can take out at any time and add developer and testing sample, makes chromogenic reaction finish the colorimetric pool of putting into instrument afterwards again in colorimetric bottle 41 and carries out colorimetric estimation.
Continuation is referring to Fig. 3 and Fig. 5, and the sealing of the bottom of colorimetric pool 6 forms single channel reaction colorimetric pool with this.Connect sidewall in the hexahedron side of colorimetric pool housing 31 and be provided with light source/monochromator 51.Hexahedron side and light source/monochromator 51 corresponding horizontal levels perforation sidewalls at colorimetric pool housing 31 are provided with photoelectric detector 53.Light source/monochromator is the super bright light emitting diode 33 of some, not only does light source but also make monochromator, is horizontal level and is arranged on three adjacent sides of hexahedron.In the present embodiment, adopted the Japanese super bright light emitting diode that day is inferior and Toyota Company produces, 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 demand of different detection methods to light source/monochromator 51, select the light emitting diode of two kinds of wavelength in the above-mentioned wavelength in the present embodiment for use, be arranged on two adjacent sides of hexahedron, aim at the photodetector unit 32 on the corresponding surface on the hexahedron.Light source/monochromator adopts continuously or the pulse mode power supply.This circuit is a custom circuit, is not describing in detail at this.Photoelectric detector 53 is the photodetector unit 32 of some, is installed on three adjacent in addition sides of hexahedron.In the present embodiment, photodetector unit 32 has adopted American TI Company to produce the integrated electro sensor, and model is TSL201, TSL202, TSL203, TSL204, TSL205, TSL206, TSL207, TSL208, TSL209, TSL220, TSL230, TSL235, TSL245, TSL250, TSL251, TSL250, TSL253, TSL254, TSL255, TSL256, TSL257, TSL258, TSL259, TSL260, TSL261, TSL262.Certainly, the present invention also can adopt other to have the integrated electro sensor of equal effect.
Referring to Fig. 5, principle of work of the present invention is shown: after energized, the monochromatic light that light source/monochromator sends shines photoelectric detector after passing sample in the colorimetric pool, after photoelectric detector is converted to electric signal with detected light signal, be transferred to microprocessor, carry out data analysis by microprocessor the result is outputed on display screen or the printer, also can pass through RS-232/USB interface and PC on-line communication, analysis result also can be shown by PC.Microprocessor is P51, the P52 series that PHILIPS Co. produces, and its major parameter is 12 single-chip microcomputers, internal storage 64K.The output signal that microprocessor is used for the receiving photoelectric detector line data of going forward side by side is handled, and the information after the processing is shown by LCDs 8.Simultaneously, microprocessor also can pass through RS-232/USB interface and computer on-line communication, and the setting of data, collection, analysis and processing procedure can be finished by operating computer, and the information after will handling shows by display screen or printer.
The detection of parameter need be heated testing sample, for making heating operation convenient, the present invention has increased sample heating device (with among Fig. 1 7), after testing sample adds colorimetric bottle 41, can insert earlier in this well heater and heat, add dsc data and pass to microprocessor, by microprocessor control heating-up temperature and time by temperature sensor (with among Fig. 2 23).Colorimetric bottle 41 after the heating is transferred to and is carried out colorimetric estimation in the colorimetric pool 6.
Power supply of the present invention, microprocessor, light source/monochromator, photoelectric detector, LCDs, printer, sample heating device, return button, confirm button, on turn over button, the circuit that turns over a series of components and parts such as button and power switch, supply socket and RS-232/USB interface down is connected can be with reference to figure 6, this circuit is only for realizing a kind of physical circuit connected mode of aforementioned functional, not as the restriction that other possible circuit are connected.
Introduce the using method of poly parameter food safety quick analytic instrument of the present invention below in conjunction with concrete operations.
One, sample preparation
1. fluid sample
Accurately pipette quantitative sample solution with 5 milliliters of pipettors, place colorimetric bottle, add related reagent more respectively.Be diluted to 10 milliliters of scale mark places with distilled water or deionized water then, after mixing, as testing sample solution.
2. solid sample
Accurately take by weighing quantitative sample (using the template weighing) with electronic platform scale, place colorimetric bottle, add related reagent more respectively, be diluted to 10 milliliters of scale mark places with distilled water or deionized water then, after mixing, colorimetric bottle is put into sample heating device be heated to the taking-up of temperature required back, filter the back as testing sample solution.
Two, colour developing-measuring operation
1. blank measure: in the colorimetric that certain volume distilled water is housed, add related reagent respectively, screw the colorimetric bottle steady arm, dry the colorimetric bottle outer wall, colorimetric bottle is put into colorimetric pool lock." measurement " project of selection is operated by the prompting of instrument, carries out blank sample and measures.
2. sample measurement: colorimetric bottle is taken out, take off the colorimetric bottle steady arm, change the sample colorimetric bottle, add related reagent, screw the colorimetric bottle steady arm, the colorimetric bottle solution that fluctuates mixes, and is heated to temperature required back then in the setting-out product well heater and takes out, clean the colorimetric bottle outer wall, colorimetric bottle is put into colorimetric pool lock." measurement " project of selection is operated by the prompting of instrument, draws the result of sample measurement.
Claims (10)
1, a kind of poly parameter food safety quick analytic instrument, comprise casing, place the colorimetric pool set collar of casing outer surface, a plurality of button, LCDs, supply socket, power switch and RS232 interface, place colorimetric pool, colorimetric bottle, light source monochromator, photoelectric detector, the microprocessor of casing inside; It is characterized in that: comprise also and the printer and the sample heating device of casing setting-in that described printer and sample heating device are electrically connected with microprocessor respectively.
2, poly parameter food safety quick analytic instrument as claimed in claim 1, it is characterized in that: described sample heating device periphery is established calandria, and heat block is established in the bottom, and a plurality of colorimetric bottle bottoming holes are established on top, other establishes temperature sensor, and this temperature sensor is electrically connected with microprocessor.
3, poly parameter food safety quick analytic instrument as claimed in claim 1 or 2, it is characterized in that: described colorimetric pool is inner to be cylindric colorimetric pool passage, the outside is the colorimetric pool housing, described colorimetric pool housing top is right cylinder, the bottom is a hexahedron, and colorimetric pool housing upper cylinder is established external thread; Other establishes a lateral dimension and wants big colorimetric pool set collar than colorimetric pool mounting hole on the casing, and described colorimetric pool set collar is established internal thread.
4, poly parameter food safety quick analytic instrument as claimed in claim 1 or 2 is characterized in that: described colorimetric pool is inner to be cylindric colorimetric pool passage, and its top is provided with bayonet socket; The corresponding described bayonet socket shape in described colorimetric pool outer wall top is established dop.
5, described poly parameter food safety quick analytic instrument as claimed in claim 3 is characterized in that: described colorimetric pool passage top is provided with bayonet socket, and the corresponding described bayonet socket shape in described colorimetric pool outer wall top is established dop.
6, described poly parameter food safety quick analytic instrument as claimed in claim 3, it is characterized in that: described light source monochromator is super bright light emitting diode, be arranged in a linear and be separately positioned on the adjacent side of hexahedron in the described colorimetric pool housing, and described photoelectric detector is a photoelectric sensor, places a relative side of described hexahedron with the number identical with light emitting diode.
7, as claimed in claim 3ly decide poly parameter food safety quick analytic instrument, it is characterized in that: described colorimetric bottle is the vial of band scale, its injection port is provided with gland bonnet, and the gland bonnet bottom is a step, and the step cross sectional dimensions is greater than described colorimetric pool channel cross-section size.
8, as claimed in claim 6ly decide poly parameter food safety quick analytic instrument, it is characterized in that: described colorimetric bottle is the vial of band scale, its injection port is provided with gland bonnet, and the gland bonnet bottom is a step, and the step cross sectional dimensions is greater than described colorimetric pool channel cross-section size.
9, describedly decide poly parameter food safety quick analytic instrument as claim 7 or 8, it is characterized in that: described colorimetric pool is inner to be cylindric colorimetric pool passage, and its top is provided with bayonet socket; The corresponding described bayonet socket shape of the outer mural margin of described colorimetric pool gland bonnet is established dop.
10, describedly decide poly parameter food safety quick analytic instrument as claim 7 or 8, it is characterized in that: the inner installing of described colorimetric pool gland bonnet sealing gasket.
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| CN 200510085072 CN1900694A (en) | 2005-07-20 | 2005-07-20 | Poly parameter food safety quick analytic instrument |
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| 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 |
| CN101329257B (en) * | 2007-06-21 | 2013-06-19 | 苏州艾杰生物科技有限公司 | Nitrous acid determination reagent kit and method for determining nitric acid concentration |
| CN103499597A (en) * | 2013-10-14 | 2014-01-08 | 无锡艾科瑞思产品设计与研究有限公司 | Flour sodium formaldehyde sulfoxylate detecting device and method based on toxic gas detection |
| CN103592247A (en) * | 2013-11-29 | 2014-02-19 | 中山鼎晟生物科技有限公司 | Device and method for detecting pesticide residues in fruits and vegetables |
| US8709281B2 (en) | 2012-08-24 | 2014-04-29 | Kent State University | 2,2′-binaphthalene ester chiral dopants for cholesteric liquid crystal displays |
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| CN103983589A (en) * | 2014-05-27 | 2014-08-13 | 中国农业大学 | Device and method for rapidly detecting heavy metal lead pollution in soil or water |
| CN105116118A (en) * | 2015-07-07 | 2015-12-02 | 河北工程大学 | Intelligent food safe and rapid detection analyzer |
| US9725552B2 (en) | 2014-10-14 | 2017-08-08 | Industrial Technology Research Institute | HMF-based phenol formaldehyde resin |
| CN116773758A (en) * | 2023-08-17 | 2023-09-19 | 山东省食品药品检验研究院 | Detection equipment for white cake in flour and application method of detection equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101329257B (en) * | 2007-06-21 | 2013-06-19 | 苏州艾杰生物科技有限公司 | Nitrous acid determination reagent kit and method for determining nitric acid concentration |
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| US8709281B2 (en) | 2012-08-24 | 2014-04-29 | Kent State University | 2,2′-binaphthalene ester chiral dopants for cholesteric liquid crystal displays |
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