CN201600329U - Multifunctional colorimetric measuring device - Google Patents
Multifunctional colorimetric measuring device Download PDFInfo
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- CN201600329U CN201600329U CN2010201058558U CN201020105855U CN201600329U CN 201600329 U CN201600329 U CN 201600329U CN 2010201058558 U CN2010201058558 U CN 2010201058558U CN 201020105855 U CN201020105855 U CN 201020105855U CN 201600329 U CN201600329 U CN 201600329U
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- measuring
- cuvette
- colorimetric
- multifunctional
- measuring device
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Abstract
The utility model discloses a multifunctional colorimetric measuring device which comprises a burette, a cuvette and a photoelectric detection module, wherein the cuvette is formed by arranging a color developing measuring cell and an empty measuring cell in parallel, and the measuring cells have same shape; the walls of two ends of the two measuring cells are provided with light holes with equal height; the photoelectric detection module is arranged on a detection rack; the detection rack is arranged on a linear guide rail which is parallel to a connection line between centers of light holes at the same end of the two measuring cells; a piston, the detection rack and a three-way valve in the burette are respectively connected with a drive mechanism; and the non-piston end of the burette is connected with the three-way valve controlled by a motor. The multifunctional colorimetric measuring device is used for measuring the concentration of solution by photoelectric colorimetric method, and can be used for different colorimetric measurements; and the detected color reagent is compared with the detected basic solution, therefore, in a same condition, the multifunctional colorimetric measuring device can avoid influence caused by turbidity and self-colors of solutions, environmental temperature and the like, thus effectively improving the measuring accuracy. The multifunctional colorimetric measuring device further improves the detection efficiency.
Description
Technical field
The utility model relates to a kind of multi-functional colorimetric measurement device of measuring solution concentration with photoelectric colorimetry.
Background technology
We know, when light passes through colored solutions, colored solutions is to light absorption selectively, different material is to the receptivity difference of different wavelengths of light, the degree of solution absorption luminous energy is relevant with liquid layer thickness and color depth, every kind of material all has its special absorption spectrum, and colourimetry utilizes this principle to measure the content of material in the solution.Colourimetry is measured the concentration of solution and is used very wide now, existing colorimetric measurement device mainly is made of buret, cuvette and Photoelectric Detection assembly, its main measuring method is according to certain test substance content difference in the detected solution, the depth difference of the color of its demonstration or color utilizes this change in color to measure measured matter content.Because of when measuring, need demarcating one group of data, all be standard model and timing signal adopts, there is following problem in existing colorimetric measurement: the one, be subjected to the influence of turbidity, may there be turbidity in actual sample, will bring measuring error like this; The 2nd, be subjected to Temperature Influence, because the photoelectricity testing part characteristic is subjected to Temperature Influence, therefore, environment temperature or solution temperature variation to be measured can bring measuring error; The 3rd, the influence of liquid body intrinsic colour, the measuring error that solution just to be measured and standard solution itself exist color distortion to bring.
The utility model content
The technical problems to be solved in the utility model is to overcome weak point of the prior art, provides a kind of and can improve measuring accuracy, is applicable to two kinds of dissimilar colorimetric measurement, and can improve the multi-functional colorimetric measurement device of detection efficiency.
The technical solution of the utility model is: multi-functional colorimetric measurement device, comprise buret, cuvette and Photoelectric Detection assembly, cuvette is positioned at the below of the minim pipette of buret, luminotron in the Photoelectric Detection assembly and receiving tube lay respectively at the opposite end of cuvette, its improvements are that described cuvette is made of side by side shape identical colour developing measuring cell and blank measure pond, be respectively equipped with contour light hole on the end wall in colour developing measuring cell and blank measure pond, described Photoelectric Detection assembly is arranged on the testing stand, and this testing stand is arranged on and is parallel on colour developing measuring cell and the blank measure pond line slideway with the light hole line of centres of end.
Further scheme is: described testing stand is connected with motor, lead screw transmission mechanism; One end of described buret is equipped with piston, and this piston is connected with motor, lead screw transmission mechanism, and screw mandrel one side is provided with limit switch; The other end of described buret links to each other with an interface of the T-valve that has motor, and other two interfaces of T-valve link to each other with minim pipette with liquid storage bottle respectively.
Above-mentioned multi-functional colorimetric measurement device can be used for two kinds of dissimilar colorimetric measurement: first kind, in being added with the detected solution of indicator, carry out titration with titrant, when the Photoelectric Detection component detection stops titration when the detected solution color changes, calculate detected solution concentration according to the titrant consumption, the method is a benchmark with detected solution stoste, can effectively eliminate the influence that temperature and turbidity bring measurement; Second kind, it also is the main innovation part of this device, has practical value especially, method is: demonstration measuring cell and the blank measure pond of the detected solution of equivalent being put into cuvette respectively, developer is progressively splashed into the demonstration measuring cell by the titration unit, make the detected solution colour developing, perhaps the detected solution that will develop the color is put into and is shown measuring cell, the difference of its color or the depth are relevant with content of material in the detected solution, the detected solution stoste of equivalent is put into the blank measure pond, solution in demonstration measuring cell and the blank measure pond is detected by moving simultaneously with the Photoelectric Detection assembly again, calculate detected solution concentration by different absorbances.Because in the comparison and detection, correlation parameters such as Photoelectric Detection assembly, measuring cell, sample path length, light path are identical, calculate with the difference that both sides are measured, the influence of so just having avoided solution turbidity, temperature, self color and environment temperature etc. to bring, thus can effectively improve measuring accuracy.
This device is provided with motor, lead screw transmission mechanism and three-way solenoid valve switching mechanism, and is convenient when making its work, reliable, further improves detection efficiency.
Description of drawings
Accompanying drawing is the utility model package assembly synoptic diagram.
Embodiment
Further specify the utility model below by embodiment.
Referring to accompanying drawing, one end of buret 4 has piston, this piston links to each other with comprising the gear train of motor 3 with screw mandrel 2, this motor adopts linear electric motors, its rotating shaft endoporus has internal thread and screw mandrel matches, motor is fixed, and drives screw mandrel during the rotating shaft rotation and does axially-movable, and screw mandrel one side is provided with fixing optoelectronic switch 1.Two interface a, b having the T-valve 6 of motor 7 are connected with the buret other end and liquid storage bottle 8 by anticorrosion flexible pipe 5 respectively, another interface c links to each other with minim pipette 10, cuvette is placed in the minim pipette below, cuvette is made of side by side shape identical colour developing measuring cell 11 and blank measure pond 12, the colour developing measuring cell is respectively equipped with contour light hole 13 over against the minim pipette lower port on the end wall of two measuring cells.The Photoelectric Detection assembly that is made of luminotron 9 and receiving tube 14 is arranged on the testing stand 15, this testing stand is arranged on and is parallel on the line slideway 16 of two measuring cells with the end light hole line of centres, parallel moving under testing stand can drive at the gear train that motor 18 and screw mandrel 17 constitutes carried out detection under the equal conditions to two measuring cells.Described Photoelectric Detection assembly is connected with the correlation analysis instrument.
Claims (4)
1. multi-functional colorimetric measurement device, comprise buret, cuvette and Photoelectric Detection assembly, cuvette is positioned at the below of the minim pipette of buret, luminotron in the Photoelectric Detection assembly and receiving tube lay respectively at the opposite end of cuvette, it is characterized in that described cuvette is made of side by side shape identical colour developing measuring cell and blank measure pond, be respectively equipped with contour light hole on the end wall in colour developing measuring cell and blank measure pond, described Photoelectric Detection assembly is arranged on the testing stand, and this testing stand is arranged on and is parallel on colour developing measuring cell and the blank measure pond line slideway with the light hole line of centres of end.
2. by the described multi-functional colorimetric measurement device of claim 1, it is characterized in that described testing stand is connected with motor, lead screw transmission mechanism.
3. by the described multi-functional colorimetric measurement device of claim 1, it is characterized in that an end of described buret is equipped with piston, this piston is connected with motor, lead screw transmission mechanism, and screw mandrel one side is provided with limit switch.
4. by the described multi-functional colorimetric measurement device of claim 3, it is characterized in that the other end of described buret links to each other with an interface of the T-valve that has motor, other two interfaces of T-valve link to each other with minim pipette with liquid storage bottle respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201058558U CN201600329U (en) | 2010-02-02 | 2010-02-02 | Multifunctional colorimetric measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201058558U CN201600329U (en) | 2010-02-02 | 2010-02-02 | Multifunctional colorimetric measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201600329U true CN201600329U (en) | 2010-10-06 |
Family
ID=42811393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201058558U Expired - Fee Related CN201600329U (en) | 2010-02-02 | 2010-02-02 | Multifunctional colorimetric measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201600329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590538A (en) * | 2011-01-13 | 2012-07-18 | 北京安南科技有限公司 | Infrared spectrometry-based multi-sample cell automatic exchanging system |
| CN106290704A (en) * | 2015-06-23 | 2017-01-04 | 中美华世通生物医药科技（武汉）有限公司 | Titration system and titration method |
-
2010
- 2010-02-02 CN CN2010201058558U patent/CN201600329U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590538A (en) * | 2011-01-13 | 2012-07-18 | 北京安南科技有限公司 | Infrared spectrometry-based multi-sample cell automatic exchanging system |
| CN102590538B (en) * | 2011-01-13 | 2015-10-14 | 北京安南科技有限公司 | The automatic contact transformation system in Multi-example pond based on infrared spectrometry |
| CN106290704A (en) * | 2015-06-23 | 2017-01-04 | 中美华世通生物医药科技（武汉）有限公司 | Titration system and titration method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20130202 |