CN101614672A - A kind of portable extendible test paper analytical approach and equipment thereof - Google Patents
A kind of portable extendible test paper analytical approach and equipment thereof Download PDFInfo
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- CN101614672A CN101614672A CN200910089494A CN200910089494A CN101614672A CN 101614672 A CN101614672 A CN 101614672A CN 200910089494 A CN200910089494 A CN 200910089494A CN 200910089494 A CN200910089494 A CN 200910089494A CN 101614672 A CN101614672 A CN 101614672A
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Abstract
A kind of portable extendible test paper analytical equipment, the rayed that light source sends is at the reaction zone of test strips, determine the catoptrical light value of indicator paper block by detecting device, gather these light values by photo-translating system, and obtain reflectivity by micro computer, be converted into concentration, and then draw testing result.Can carry out real-time on-site to urea in quick detection test paper such as residues of pesticides, nitrite, formaldehyde, industrial soda, the milk etc. analyzes, has the advantage that testing result is accurate, easy to carry, practical, cost is low, effective, being specially adapted to food safety detection at different levels mechanism on-site law-enforcing uses, also can be widely used in the food security self check in individual, the family, also can be used for safety speed before the scene detection in fruit, vegetables, tea production base and agricultural trade wholesale sales market and restaurant, dining room, the family's garden stuff processing and survey etc.
Description
Technical field
The present invention relates to a kind of portable extendible test paper analytical approach and equipment thereof, be mainly used in the interpretation of food security quick detection test paper, as urea in residues of pesticides, nitrite, formaldehyde, industrial soda, the milk or the like, belong to the food safety detection equipment technical field.
Background technology
Along with development of science and technology, increasing of a large amount of uses of chemical pesticide and food and the contaminated approach of water quality, whole world food security situation is more and more severeer, safety detection to food and water quality is more and more important, and food-safety problem has been subjected to showing great attention to of country, governments at all levels and broad masses of the people.
The present food safety detection work of China is mainly born by epidemic prevention station, Center for Disease Control, inspection and quarantine bureau, these state-owned units self-contained, laboratory condition is better, therefore the starting point of the GB detection method of in the past working out mainly is the requirement of satisfying under the laboratory condition, consider lessly on convenience, the layman is difficult to operation.Traditional laboratory detecting instrument volume is big, analytical approach is complicated, lacks versatility, can't reach quick, low-cost, easy to utilize scene and detect requirement.Along with the large tracts of land of food-safety problem, outburst fast, the test paper of fast detecting food security has appearred, as rapid detection for pesticide residue card, industrial soda quick detection test paper etc. on the market.These quick detection test paper are easy to use, and based on the principle of test paper and determinand reaction generation change color, detection time is fast, and cost is low, quite is subjected to users' welcome.But different people is to the difference susceptibility difference of change color, can produce error in judgement to the change color of test strips, causes each one testing result variant.Only be useful on the Urine Analyzer of medical test in the market, can a plurality of reagent bands of continuous detecting, obtain 8-12 item urine index, still, be used for the also not appearance of analyser that numerous food detects test paper safely and fast, have only a kind of single nitrate detection paper instrument.Therefore, a kind of analytical instrument that can read multiple detection paper result fast of an urgent demand invention is to eliminate the judgement difference that different people produces change color.
Summary of the invention
The object of the present invention is to provide a kind of simple and reasonable, little, in light weight, the no accessory of volume, easy and simple to handle, quick, can read the analytical equipment of various reaction test paper fast.This equipment need not special testing environment temperature, is not subjected to that extraneous factor influences, good stability, that detection technique is easy to grasp, manufacturing cost and detection cost is all lower.Be mainly used in the interpretation of food security quick detection test paper, as urea in residues of pesticides, nitrite, formaldehyde, industrial soda, the milk etc.Be specially adapted to food safety detection at different levels mechanism on-site law-enforcing and use, can be used for the safety speed survey etc. before the scene detection in fruit, vegetables, tea production base and agricultural trade wholesale sales market and restaurant, dining room, the family's garden stuff processing in addition.
In order to achieve the above object, the present invention has adopted a kind of portable extendible test paper analytical equipment, is made up of optical system (1), amplifier (2), A/D converter (3), microcomputer system (4) and adjunct circuit (5), and its structural representation is seen Fig. 1.Light source of the present invention has adopted the light emitting diode (LED) that can launch specific wavelength as detection light source, can select the relevant detection wavelength according to different test items, pass through microcomputerized control, the illumination that light source sends is mapped to the reaction zone of test strips, measure the catoptrical light value of indicator paper block by detecting device, gather these light values by photo-translating system, and obtain reflectivity, be converted into concentration by micro computer.
The depth of test paper reaction zone color is different to absorption, the emission of light, and the dark more extinction value of color is big more, and the reflected light value is more little, and then reflectivity is more little; Otherwise color is shallow more, and the extinction value is more little, and the reflected light value is big more, and then reflectivity is also big more.That is, the depth of color is directly proportional with the concentration of various compositions in the sample.
The present invention has following characteristics: (1) is lightly portable, and is easy and simple to handle; (2) the full-automatic calibration of start software and hardware; (3) Jing Mi light source orbit Design does not produce light scattering phenomenon; (4) the employing digital signal is handled and temperature compensation function is arranged, and makes the result more accurate; (5) detectable test paper variation can be expanded, and can constantly upgrade along with the progress of research and development; (6) be equipped with USB interface, can carry out data processing and statistical study by computing machine; (7) automatic fault detection, print error message and warning function; (8) band heated constant temperature function, some test paper that need heat also can conveniently be used, and do not need extra heating annex.
In a word, the present invention can carry out the analysis of real-time on-site to urea in quick detection test paper such as residues of pesticides, nitrite, formaldehyde, industrial soda, the milk etc., having the advantage that testing result is accurate, easy to carry, practical, cost is low, effective, is a kind of analytical instrument of novel food security quick detection test paper.
Description of drawings
Fig. 1 is the structural representation of a kind of portable extendible test paper analytical equipment of the present invention.
Fig. 2 is the system flowchart of a kind of portable extendible test paper analytical equipment of the present invention.
Embodiment
As shown in Figure 1, a kind of portable extendible test paper analytical instrument mainly is made up of optical system (1), amplifier (2), A/D converter (3), microcomputer system (4) and adjunct circuit (5).The illumination that light source sends is mapped to the reaction zone of test strips, measure the catoptrical light value of indicator paper block by detecting device, gather these light values by photo-translating system, and obtain reflectivity by micro computer, be converted into concentration, and the result is presented on the display screen, can also link to each other with computing machine by USB interface, carry out data processing and statistical study.
As shown in Figure 2, a kind of total system flow process of portable extendible test paper analytical instrument can be divided into lower module: light source (101), sample bin (102), detecting device (103,104), amplifier (2), A/D converter (3), microcomputer system (4) and adjunct circuit (5).The detection of test strips is the core of total system.The user selects test item to measure by keyboard (403), instrument is selected the relevant detection wavelength according to different test paper, detecting device is finished measurement control, the data acquisition of test strips, processor be responsible for finishing measurement result calculating, demonstration, preservation, inquiry and with the tasks such as exchanges data of PC.
Test strips after the adding detectable is put into the detection position of instrument, select test item by touching color LCD screen (402) and keyboard (403), after selecting test item, processor (CPU) (401) is according to the project of selecting, read the data of detection, handle the back demonstrates institute's test item at display screen reading by CPU again.Printer is printed the result, simultaneously the result is saved in reservoir.Instrument also is provided with the usb data interface, can directly be connected with the PC serial ports, sends different instruction by computer control, and instrument is finished corresponding operation, and different data are sent to PC according to receiving different instructions, detects data by software processes.
This equipment of use carries out nitrite and detects.At first, the test strips that adds test sample is put into sample bin, select test item by keyboard, instrument determines to detect with blue-light source according to selected item automatically, obtain the reflectivity of tested test paper, and the reflectivity built-in with instrument---concentration curve compares, thereby obtains sample concentration.
Embodiment 4
This equipment of use carries out chlorine residue and detects.At first, the test strips that adds test sample is put into the paper groove, select test item by keyboard, equipment determines to detect with red light source according to selected item automatically, obtain the reflectivity of tested test paper, and the emissivity built-in with equipment---concentration curve compares, thereby obtains sample concentration.
This equipment of use carries out agricultural residual detection.The residual test paper of farming need react with sample under 38 ℃ of temperature constant states and develop the color.So, when carrying out the residual detection of farming, the residual test paper of farming put on the instrument well heater heat, drip sample solution simultaneously and react, wait the reaction end of clocking, equipment is made corresponding prompting.The test paper that reacts completely is taken off from well heater, putting into sample bin detects, select test item by keyboard, equipment determines to detect with yellow light sources according to selected item automatically, obtain the reflectivity of tested test paper, and the emissivity built-in with equipment---concentration curve compares, thereby obtains sample concentration.
At last, should be pointed out that above embodiment only is the more representational example of the present invention.Obviously, the solution of the present invention is not limited to the above embodiments, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (9)
1, a kind of portable extendible test paper analytical approach and equipment thereof are made up of optical system (1), amplifier (2), A/D converter (3), microcomputer system (4) and adjunct circuit (5); Wherein, optical system is made up of light source (101), sample bin (102), detecting device (103,104), and microcomputer system is made up of CPU (401), display screen (402), keyboard (403); It is characterized in that: described test paper analytical equipment adopts the light emitting diode (LED) that can launch different wave length as detection light source (101), and described detection light source (101) can be selected the relevant detection wavelength according to different test paper; Described test paper analytical instrument is by microcomputer system (5) control, and the change color according on the detecting device mensuration test paper draws test findings.
2, a kind of portable extendible test paper analytical approach according to claim 1 and equipment thereof, it is characterized in that: described analytical equipment has added heating and attemperating unit, not only can be used for the detection that part need heat the test paper of ability normal reaction, the constant temperature that also can be used for common test paper simultaneously, change the influence that test paper is produced to reduce ambient temperature, make the test paper reaction more accurate, stable.
3, a kind of portable extendible test paper analytical approach according to claim 1 and equipment thereof is characterized in that: the promptly full-automatic calibration software and hardware of described test paper analytical equipment one start.
4, a kind of portable extendible test paper analytical approach according to claim 1 and equipment thereof is characterized in that: described detection light source (101) adopts accurate light source orbit Design, does not produce light scattering phenomenon.
5, a kind of portable extendible test paper analytical approach according to claim 1 and 2 and equipment thereof is characterized in that: described micro computer (5) adopts digital signal control and is provided with the temperature compensation function module.
6, a kind of portable extendible test paper analytical approach according to claim 1 and equipment thereof, it is characterized in that: the analyzable test paper of described test paper analytical equipment can be diversified, the test paper that is applied to fast detecting all can detect, and also can expand, and constantly upgrades.
7, a kind of portable extendible test paper analytical approach according to claim 1 and equipment thereof is characterized in that: described equipment has automatic fault and detects and warning function.
8, a kind of portable extendible test paper analytical approach according to claim 1 and equipment thereof, it is characterized in that: described equipment is furnished with USB interface, can carry out data processing and statistical study by computing machine.
9, a kind of portable extendible test paper analytical approach and equipment thereof, it is characterized in that: described test paper analytical approach may further comprise the steps:
(1) at first in sample bin, put into blank test paper and proofread and correct,
(2) take out blank test paper, in sample bin, put into the test paper that drips test sample,
(3) rayed sent of light source determines the catoptrical light value of indicator paper block at the reaction zone of test strips by detecting device,
(4) gather these light values by photo-translating system, and obtain reflectivity, be converted into concentration by micro computer.
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Cited By (21)
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| CN102253037A (en) * | 2011-04-12 | 2011-11-23 | 贵州大学 | Test paper slip for testing adulterated milk rapidly |
| CN102393393A (en) * | 2011-09-04 | 2012-03-28 | 昆明泊银科技有限公司 | Detection device and detection method for content of heavy metal in foods |
| CN102735683A (en) * | 2012-07-25 | 2012-10-17 | 新岸诺亚（北京）催化科技有限公司 | Reading instrument of pH test paper |
| CN102937640A (en) * | 2012-11-16 | 2013-02-20 | 成都泰盟软件有限公司 | Color changing formaldehyde tester and formaldehyde concentration determination method |
| CN102985806A (en) * | 2012-06-14 | 2013-03-20 | 天津天合众生医疗科技有限公司 | Detection device and method |
| CN103091310A (en) * | 2012-12-27 | 2013-05-08 | 北京智云达科技有限公司 | Photoelectric control device for food safety detector |
| CN103163126A (en) * | 2011-12-08 | 2013-06-19 | 中国检验检疫科学研究院 | Quantitative detector for detecting test strip coloration signal through differential immunochromatography |
| CN103901025A (en) * | 2012-12-27 | 2014-07-02 | 中国科学院烟台海岸带研究所 | Color detection device and method of portable paper-base micro fluidic chip |
| CN104181317A (en) * | 2014-09-01 | 2014-12-03 | 成都劲宏科技有限公司 | Portable multi-functional biological test paper detector and portable multi-functional biological test paper detection system as well as realization method thereof |
| CN104298979A (en) * | 2014-10-31 | 2015-01-21 | 广州万孚生物技术股份有限公司 | Device and method for identifying biological test paper |
| CN104655682A (en) * | 2015-03-06 | 2015-05-27 | 金陵科技学院 | Sampling-integrated portable detecting device |
| CN105143854A (en) * | 2012-10-24 | 2015-12-09 | 天津天合众生医疗科技有限公司 | Detection apparatus based on test paper |
| CN105223370A (en) * | 2015-10-15 | 2016-01-06 | 山东浩华环保科技有限公司 | A kind of environmental pollution monitoring system |
| CN106198538A (en) * | 2016-06-24 | 2016-12-07 | 武汉山不厌高科技有限公司 | A kind of reagent paper read method and device |
| CN104406921B (en) * | 2014-12-15 | 2017-02-08 | 中国农业大学 | Optical detection system and optical detection method |
| CN106442489A (en) * | 2016-08-31 | 2017-02-22 | 马东阁 | OLED (organic light emitting diode) urinalysis equipment |
| WO2018041264A1 (en) * | 2016-09-05 | 2018-03-08 | 柯正浩 | Screening test paper, and verification system and method therefor |
| CN108195837A (en) * | 2017-12-25 | 2018-06-22 | 天津天合众生医疗科技有限公司 | Test paper color development detection method |
| CN108204979A (en) * | 2016-12-19 | 2018-06-26 | 网易（杭州）网络有限公司 | For the method and apparatus of light source calibration in test paper detection device |
| CN109444120A (en) * | 2018-09-04 | 2019-03-08 | 江苏大学 | Pesticide residue and nitrite detection device and method based on barcode scanning formula paper chip |
| CN114062353A (en) * | 2020-07-30 | 2022-02-18 | 重庆康巨全弘生物科技有限公司 | Breast milk detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102253037A (en) * | 2011-04-12 | 2011-11-23 | 贵州大学 | Test paper slip for testing adulterated milk rapidly |
| CN102393393A (en) * | 2011-09-04 | 2012-03-28 | 昆明泊银科技有限公司 | Detection device and detection method for content of heavy metal in foods |
| CN103163126A (en) * | 2011-12-08 | 2013-06-19 | 中国检验检疫科学研究院 | Quantitative detector for detecting test strip coloration signal through differential immunochromatography |
| CN102985806B (en) * | 2012-06-14 | 2014-12-24 | 天津天合众生医疗科技有限公司 | Detection device and method |
| EP2869063A4 (en) * | 2012-06-14 | 2016-03-23 | Tianjin Huac Healthcare Technology Co Ltd | Detection device and method |
| CN102985806A (en) * | 2012-06-14 | 2013-03-20 | 天津天合众生医疗科技有限公司 | Detection device and method |
| WO2013185313A1 (en) * | 2012-06-14 | 2013-12-19 | 天津天合众生医疗科技有限公司 | Detection device and method |
| CN102735683A (en) * | 2012-07-25 | 2012-10-17 | 新岸诺亚（北京）催化科技有限公司 | Reading instrument of pH test paper |
| CN105143854A (en) * | 2012-10-24 | 2015-12-09 | 天津天合众生医疗科技有限公司 | Detection apparatus based on test paper |
| CN105143854B (en) * | 2012-10-24 | 2017-11-03 | 天津天合众生医疗科技有限公司 | A kind of detection means based on test paper |
| CN102937640B (en) * | 2012-11-16 | 2015-08-05 | 成都泰盟软件有限公司 | The formaldehyde tester of variable color and concentration of formaldehyde defining method |
| CN102937640A (en) * | 2012-11-16 | 2013-02-20 | 成都泰盟软件有限公司 | Color changing formaldehyde tester and formaldehyde concentration determination method |
| CN103901025A (en) * | 2012-12-27 | 2014-07-02 | 中国科学院烟台海岸带研究所 | Color detection device and method of portable paper-base micro fluidic chip |
| CN103091310A (en) * | 2012-12-27 | 2013-05-08 | 北京智云达科技有限公司 | Photoelectric control device for food safety detector |
| CN104181317A (en) * | 2014-09-01 | 2014-12-03 | 成都劲宏科技有限公司 | Portable multi-functional biological test paper detector and portable multi-functional biological test paper detection system as well as realization method thereof |
| CN104181317B (en) * | 2014-09-01 | 2016-03-02 | 成都劲宏科技有限公司 | The biological detection paper instrument of a kind of portable multi-function and biological detection paper system, implementation method |
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| CN104298979B (en) * | 2014-10-31 | 2017-10-17 | 广州万孚生物技术股份有限公司 | The identifying device and method of a kind of biological test paper |
| CN104406921B (en) * | 2014-12-15 | 2017-02-08 | 中国农业大学 | Optical detection system and optical detection method |
| CN104655682A (en) * | 2015-03-06 | 2015-05-27 | 金陵科技学院 | Sampling-integrated portable detecting device |
| CN105223370A (en) * | 2015-10-15 | 2016-01-06 | 山东浩华环保科技有限公司 | A kind of environmental pollution monitoring system |
| CN106198538A (en) * | 2016-06-24 | 2016-12-07 | 武汉山不厌高科技有限公司 | A kind of reagent paper read method and device |
| CN106442489A (en) * | 2016-08-31 | 2017-02-22 | 马东阁 | OLED (organic light emitting diode) urinalysis equipment |
| CN106442489B (en) * | 2016-08-31 | 2020-06-12 | 马东阁 | OLED urine analysis equipment |
| WO2018041264A1 (en) * | 2016-09-05 | 2018-03-08 | 柯正浩 | Screening test paper, and verification system and method therefor |
| CN108204979A (en) * | 2016-12-19 | 2018-06-26 | 网易（杭州）网络有限公司 | For the method and apparatus of light source calibration in test paper detection device |
| CN108195837A (en) * | 2017-12-25 | 2018-06-22 | 天津天合众生医疗科技有限公司 | Test paper color development detection method |
| CN109444120A (en) * | 2018-09-04 | 2019-03-08 | 江苏大学 | Pesticide residue and nitrite detection device and method based on barcode scanning formula paper chip |
| CN109444120B (en) * | 2018-09-04 | 2021-04-20 | 江苏大学 | Pesticide residue and nitrite detection device and method based on code scanning type paper chip |
| CN114062353A (en) * | 2020-07-30 | 2022-02-18 | 重庆康巨全弘生物科技有限公司 | Breast milk detection device |
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