CN2689224Y - Automatic titrating device for detecting reduced sugar - Google Patents
Automatic titrating device for detecting reduced sugar Download PDFInfo
- Publication number
- CN2689224Y CN2689224Y CN 200420038786 CN200420038786U CN2689224Y CN 2689224 Y CN2689224 Y CN 2689224Y CN 200420038786 CN200420038786 CN 200420038786 CN 200420038786 U CN200420038786 U CN 200420038786U CN 2689224 Y CN2689224 Y CN 2689224Y
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- titration
- reducing sugar
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- liquid
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Abstract
The utility model relates to an automatic titrating device which can rapidly and accurately detect the reduced sugar in various samples, belonging to the technical field of biochemical detecting instrument. The utility model is characterized in that the two sides of a titrating pool 10 are relatively provided with a monochrome luminaire 8 and a photoelectric converter 1. The flank of the titrating pool 10 is provided with liquid inlet and discharge pipes, two paths of liquid is respectively connected with a metering pump 7 and a metering pump 6 for detecting liquid after entering into the pipe, one path of liquid inlet pipe is connected with a peristaltic pump 2, and the other path of liquid discharging pipe is connected with a peristaltic pump 3. The inner side of the titrating pool 10 is provided with a temperature sensor 5 and an electric heater 9, the bottom of the titrating pool 10 is provided with a mixer 4, and the upper part of the titrating device 10 is provided with a sample inlet opening 11. The utility model can rapid and accurately detect the reduced sugar in various samples and has the advantages of strong stability, and the utility model can not be affected by color, turbidity and constituent of the sample.
Description
Technical field
The utility model relates to a kind of automatic titration device that can rapid and accurate determination goes out content of reducing sugar in the various samples, belongs to biochemistry detection instrument technical field.
Background technology
The mensuration of reducing sugar is the analytical approach of field widespread uses such as food, fermentation, medicine, scientific research and teaching.At present, domestic main finish by manual determination method is as Fehling titrimetry, DNS colourimetry etc.These method complex operations, comparatively time-consuming, personal error is bigger, and particularly to muddy sample or the darker sample of color, change color is sensitive inadequately, brings a lot of difficulties to assay, the accuracy that influence is measured.Some sample must just can be measured through processing such as activated carbon decolorizings, brings a lot of unnecessary troubles for analytical control and production control.
Various automatic and semi-automatic titrators are a lot of both at home and abroad at present, as conductance titration, radio frequency titration, coulometric titration etc.These analytical approachs mainly are to select various indicator electrodes (as glass electrode etc.), change according to electrode potential or current signal to show, determine titration end-point.But because indicator electrode must insert in the sample, thereby, be subject to the interference and the pollution of complex sample component, as fermentation liquor, food, beverage etc., automatically photometric titrator can change definite titration end-point according to the luminosity of titration end-point, but can not under the situation of liquid boiling, carry out, be very restricted in actual applications.In recent years, to studies show that the automatic titration technique of reducing sugar carries out, accurately the gordian technique that detects is that titration process must be finished under the liquid boiling state.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provide a kind of can the easy automatic titration device that fast, accurately detects content of reducing sugar in the various sample liquid.
The technical scheme that its technical matters that solves the utility model adopts is: form titration control sensor according to Pei Lin reagent biochemical reaction conditional request and the employing of change color characteristics with the monochromatic source and the photoelectric commutator of sample liquid color complementary color; Adopt the spiral plunger pump of driven by servomotor to constitute volume pump; Form temperature control unit by electric heater, temperature sensor and temperature controller.
Titration cell is a cylindrical drop reaction device, and the titration cell both sides have transparent unthreaded hole, incident monochromatic source and photoelectric commutator to split both sides; The titration cell side has that liquid enters, discharge line; Volume pump connects liquid and enters pipeline and can add reagent, vs, and peristaltic pump connects respectively that liquid enters, discharge line can be finished respectively and clean and emptying; There is temperature sensor and the electric heater of adjusting fluid temperature the titration cell inboard; The titration cell bottom makes the mixed uniformly magnetic stirrer of titration liquid; Top is injection port, and available microsyringe injects titration cell with sample.
Automatic control system can adopt the finished product Programmable Logic Controller, comprise power circuit, master control board, display panel and mini-printer, can control turnover, fluid temperature, the stirring of titration cell liquid, the collection and the conversion of photovoltaic reaction information by setup program, the result calculates, shows and prints.
In sum, a kind of automatic titration device that detects reducing sugar is characterized in that comprising the titration cell of constant temperature, and the titration cell both sides are equipped with incident monochromatic source and photoelectric commutator relatively; The titration cell side has that liquid enters, discharge line, two-way liquid enters pipeline and connects the volume pump that can add reagent, vs, one road liquid enters pipeline and connects the peristaltic pump that can finish cleaning, and another liquid discharge tube road, road connects the peristaltic pump that can finish emptying; There are temperature sensor and electric heater in the titration cell inboard, and the titration cell bottom has can make the mixed uniformly magnetic stirrer of vs body; Top has available microsyringe sample to be injected the injection port of titration cell.
Monochromatic source is that reaction liquid color blue complementary color 560--590nm light source and photoelectricity receive converting system.
Volume pump is the screw pump of driven by servomotor.Accurate screw rod advances plunger metering pump quantitatively reagent to be added in the titration cell.
The temperature sensor that heating electrode and precision temperature control system are arranged in the titration cell.
During the utility model work, the interface circuit of this device with corresponding automatic control system is connected, sample is added in the titration cell, control required temperature well, enter pipeline from two-way liquid and add reagent, vs, be installed on the light source and the photosensitive device of titration cell both sides, detect the voltage that photosensitive device produces by automatic control system, along with change in color in the titration process, detect voltage and also correspondingly change.In titration end-point, the sudden change of color is consistent with the sudden change of voltage, determines titration end-point thus, and signal is sent into automatic control system, and central controller can calculate the content of reducing sugar in the titrated sample rapidly according to the titer consumption.
The utility model is to develop according to the ultimate principle that fehling reagent detects reducing sugar.Fehling reagent is a kind of oxygenant, is made up of first, second liquid.First liquid is to add the indicator methylene blue in the copper-bath, and second liquid is made up of NaOH and sodium potassium tartrate tetrahydrate, potassium ferrocyanide.First, second liquid mixes during mensuration, at first forms Kocide SD, forms the potassium tartrate copper complex then.Methylene blue is blue look as titration endpoint indicator under the state of oxidation, colourless under reducing condition.Under liquid boiling, remove the interference of oxygen in the air, to going back ortho states, liquid is become colorless by blue look, i.e. titration end-point with the titration of standard reducing sugar.The solution colour change procedure is as follows:
Blue look → avy blue → sky-blue → aubergine → lilac red is changed to colourless when titration end-point suddenly.
Characteristics of the present utility model have the following aspects:
1, simple to operate, only needing with microsyringe sample to be injected titration cell during titration can finish automatically.
2, set the temperature control of reactive system and liquid system according to the titration needs.
3, monochromatic light system with the liquid color complementary color is arranged, can reduce titration to greatest extent and disturb.
4, the pusher plunger metering pump of accurate screw rod is arranged, the reagent accurate measurement is quick.
5, the result is accurate, and the error of replication is less than manual titration.
6, finding speed is fast, and the titration cycle was particularly suitable for the mensuration of batch samples less than 3 minutes.
7, strong anti-interference performance is not subjected to the influence of color sample and turbidity.
8, stable performance, applied widely, can be applicable to commercial production control, analytical control, scientific research, fields such as teaching have vast market prospect and significant social economic benefit.
Characteristics of the present utility model are content of reducing sugar of fast, accurately measuring in the various samples, and are not subjected to the influence of sample intrinsic colour, turbidity and constituent.The operator only needs with syringe micro-example to be injected titration cell, just can automatically finish titration process, and shows automatically and print result.Simple to operate, easy to use.Particularly adopt the monochromatic light system with reaction liquid color complementary color, at utmost avoided the interference of heterochromatic light; Adopt volume pump to replace the peristaltic pump titration system, improved the liquid meter precision; Temperature controller makes vs under heating or boiling situation, still can accurately, stably judge titration end-point.Improved the stability and the accuracy of reducing sugar titrator, had higher actual application value and vast market prospect, the development of industries such as China's fermentation, food, medicine has been had important facilitation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is figure of the present utility model.
Among the figure: 1 photoelectric commutator, 2 peristaltic pumps, 3 peristaltic pumps, 4 stirrers, 5 temperature sensors, 6 volume pumps, 7 volume pumps, 8 monochromatic sources, 9 electric heaters, 10 titration cells, 11 injection ports.
Embodiment
Among the embodiment, the automatic titration device that detects reducing sugar comprises titration cell 10, and titration cell 10 both sides are equipped with monochromatic source 8 and photoelectric commutator 1 relatively; Titration cell 10 sides have that liquid enters, discharge line, two-way liquid enters pipeline and connects the volume pump 7 that can add reagent, the volume pump 6 of vs respectively, one road liquid enters pipeline and connects the peristaltic pump 2 that can finish cleaning, and another liquid discharge tube road, road connects the peristaltic pump 3 that can finish emptying; There are temperature sensor 5 and electric heater 9 in titration cell 10 inboards, and titration cell 10 bottoms have can make the mixed uniformly stirrer 4 of vs body; Titration cell 10 tops have available microsyringe sample to be injected the injection port 11 of titration cell.
Monochromatic source 8 is a reaction liquid color blue complementary color 560--590nm light source.
Photoelectric commutator 1 is made of selenium cell or photoelectric tube.
Volume pump 6,7 is the screw pump of driven by servomotor.Accurate screw rod advances plunger metering pump quantitatively reagent to be added in the titration cell.
Electric heater 9 adopts the direct or indirect heating arrangement of stainless steel electrode.
Temperature sensor 5 adopts semiconductor integrated temperature sensor or platinum resistance temperature temperature sensor.
Stirrer 4 adopts magnetic stirrer.
Titration cell 10 can adopt polytetrafluoroethylmaterial material to constitute.
Claims (8)
1, a kind of automatic titration device that detects reducing sugar is characterized in that comprising titration cell (10), and titration cell (10) both sides are equipped with monochromatic source (8) and photoelectric commutator (1) relatively; Titration cell (10) side has that liquid enters, discharge line, two-way liquid enters pipeline and connects the volume pump (7) that can add reagent, the volume pump (6) of vs respectively, one road liquid enters pipeline and connects the peristaltic pump (2) that can finish cleaning, and another liquid discharge tube road, road connects the peristaltic pump (3) that can finish emptying; There are temperature sensor (5) and electric heater (9) in titration cell (10) inboard, and titration cell (10) bottom has can make the mixed uniformly stirrer of vs body (4); Titration cell (10) top has available microsyringe sample to be injected the injection port (11) of titration cell.
2, the automatic titration device of detection reducing sugar according to claim 1 is characterized in that monochromatic source (8) is reaction liquid color blue complementary color 560--590nm light source.
3, the automatic titration device of detection reducing sugar according to claim 1 is characterized in that photoelectric commutator (1) is made of selenium cell or photoelectric tube.
4, the automatic titration device of detection reducing sugar according to claim 1 is characterized in that volume pump (6,7) is the screw pump of driven by servomotor.
5, the automatic titration device of detection reducing sugar according to claim 1 is characterized in that electric heater (9) adopts the direct or indirect heating arrangement of stainless steel electrode.
6, the automatic titration device of detection reducing sugar according to claim 1 is characterized in that temperature sensor (5) adopts semiconductor integrated temperature sensor or platinum resistance temperature sensor.
7, the automatic titration device of detection reducing sugar according to claim 1 is characterized in that stirrer (4) adopts magnetic stirrer.
8, the automatic titration device of detection reducing sugar according to claim 1 is characterized in that titration cell (10) can adopt polytetrafluoroethylmaterial material to constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420038786 CN2689224Y (en) | 2004-03-04 | 2004-03-04 | Automatic titrating device for detecting reduced sugar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420038786 CN2689224Y (en) | 2004-03-04 | 2004-03-04 | Automatic titrating device for detecting reduced sugar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2689224Y true CN2689224Y (en) | 2005-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420038786 Expired - Fee Related CN2689224Y (en) | 2004-03-04 | 2004-03-04 | Automatic titrating device for detecting reduced sugar |
Country Status (1)
| Country | Link |
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| CN (1) | CN2689224Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262056A (en) * | 2011-04-19 | 2011-11-30 | 山东省科学院中日友好生物技术研究中心 | Complementary-color-based automatic photometric titration device for determining concentration of reducing sugar |
| CN103063577A (en) * | 2012-12-27 | 2013-04-24 | 山西华顿实业有限公司 | Low-temperature stability analyzing apparatus for methanol gasoline |
| CN103439455A (en) * | 2013-09-25 | 2013-12-11 | 广州市酒类检测中心 | Blending device used in direct titration detection method |
| CN103529021A (en) * | 2012-07-03 | 2014-01-22 | 山东省科学院生物研究所 | Quick analyzing method of total sugar |
| CN103760157A (en) * | 2014-01-03 | 2014-04-30 | 南通市产品质量监督检验所 | Method for detecting total sugar content of food |
| CN105717111A (en) * | 2016-04-29 | 2016-06-29 | 中储粮成都粮食储藏科学研究所 | Automatic titration device capable of detecting change in colour of solution based on machine vision and detection method thereof |
| CN107541463A (en) * | 2017-10-10 | 2018-01-05 | 中国农业大学 | A kind of full-automatic on-line early warning diagnosis and treatment apparatus of anaerobic fermentation |
| CN108732297A (en) * | 2018-07-23 | 2018-11-02 | 山东省科学院生物研究所 | The detection method and device of gluconic acid sodium content in a kind of zymotic fluid |
| CN109765226A (en) * | 2019-02-05 | 2019-05-17 | 罗舒 | The intelligent phosphoric acid titration outfit of the ultra-clean discharge CEMS pretreatment of flue gas pollutant |
| CN110244781A (en) * | 2019-06-19 | 2019-09-17 | 宁波中科纬诚新材料科技有限公司 | A kind of chemical plating automatic liquid supply method and its system |
-
2004
- 2004-03-04 CN CN 200420038786 patent/CN2689224Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102262056A (en) * | 2011-04-19 | 2011-11-30 | 山东省科学院中日友好生物技术研究中心 | Complementary-color-based automatic photometric titration device for determining concentration of reducing sugar |
| CN103529021A (en) * | 2012-07-03 | 2014-01-22 | 山东省科学院生物研究所 | Quick analyzing method of total sugar |
| CN103063577A (en) * | 2012-12-27 | 2013-04-24 | 山西华顿实业有限公司 | Low-temperature stability analyzing apparatus for methanol gasoline |
| CN103439455A (en) * | 2013-09-25 | 2013-12-11 | 广州市酒类检测中心 | Blending device used in direct titration detection method |
| CN103760157A (en) * | 2014-01-03 | 2014-04-30 | 南通市产品质量监督检验所 | Method for detecting total sugar content of food |
| CN105717111A (en) * | 2016-04-29 | 2016-06-29 | 中储粮成都粮食储藏科学研究所 | Automatic titration device capable of detecting change in colour of solution based on machine vision and detection method thereof |
| CN107541463A (en) * | 2017-10-10 | 2018-01-05 | 中国农业大学 | A kind of full-automatic on-line early warning diagnosis and treatment apparatus of anaerobic fermentation |
| CN107541463B (en) * | 2017-10-10 | 2019-06-04 | 中国农业大学 | A kind of full-automatic on-line early warning diagnosis and treatment apparatus of anaerobic fermentation |
| CN108732297A (en) * | 2018-07-23 | 2018-11-02 | 山东省科学院生物研究所 | The detection method and device of gluconic acid sodium content in a kind of zymotic fluid |
| CN109765226A (en) * | 2019-02-05 | 2019-05-17 | 罗舒 | The intelligent phosphoric acid titration outfit of the ultra-clean discharge CEMS pretreatment of flue gas pollutant |
| CN110244781A (en) * | 2019-06-19 | 2019-09-17 | 宁波中科纬诚新材料科技有限公司 | A kind of chemical plating automatic liquid supply method and its system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |