CN111141681B - Reaction device and detection method for photometric colorimetry detection - Google Patents
Reaction device and detection method for photometric colorimetry detection Download PDFInfo
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- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
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Abstract
本发明提供一种用于光度比色法检测的反应装置及检测方法,反应装置包括反应主体单元、检测单元、进液单元和搅拌单元，所述检测单元包括光源发射部和光源信号收集部，所述反应杯座的底部侧壁上设有两个对立面设置的开口，两处开口分别嵌入有光源发射部和光源信号收集部；光源发射部发射的光源照射反应杯内的溶液将光强度信号发送给光源信号收集部，本发明是通过光度比色法来准确判定滴定分析的终点，即化学变量点，从而准确自动分析出药水的浓度。
The present invention provides a reaction device and a detection method for photometric colorimetry detection. The reaction device comprises a reaction main body unit, a detection unit, a liquid inlet unit and a stirring unit. The detection unit comprises a light source emitting part and a light source signal collecting part. The bottom side wall of the reaction cup holder is provided with two openings arranged on opposite sides, and the two openings are respectively embedded with the light source emitting part and the light source signal collecting part. The light source emitted by the light source emitting part illuminates the solution in the reaction cup and sends a light intensity signal to the light source signal collecting part. The present invention uses photometric colorimetry to accurately determine the end point of titration analysis, that is, the chemical variable point, so as to accurately and automatically analyze the concentration of the potion.
Description
Technical Field
The invention belongs to reaction equipment for detecting reagent concentration, and particularly relates to a reaction device and a detection method for detecting a photometric colorimetric method.
Background
Along with the increasing requirements of the industrialized standard, the requirements on the detection precision of the solution concentration are also more and more strict, the traditional detection mode records data after adding the reaction reagent, the detection precision of the mode is not high, the structure of the reaction device is complex, the assembly is troublesome, the detection precision of the photometric colorimetric method is not high, the problem of cross contamination among reagents also exists, the patent number CN201920567541.0 filed earlier by the applicant is named as an automatic online detection device, according to the condition, the reaction device used in the automatic online detection device is designed, and the color intensity and the content of the color solution are proportional based on the color of the detected substance or the color solution generated after adding the color developer. The substances in the solution are excited by the irradiation of light to generate an absorption effect on the light. Therefore, according to the intensity of light absorbed by the colored solution, the degree of light intensity weakening and the concentration of substances have a certain proportion relationship, the principle of colorimetry, namely lambert-beer law, is met, the proper wavelength for detecting the sample liquid test is determined, and the endpoint of titration analysis, namely a chemical variable point, is accurately and automatically determined by a photometric colorimetric method, so that the concentration of the liquid medicine is accurately and automatically analyzed.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide the reaction device and the detection method for detecting the photometric colorimetric method, which have the advantages of simple structure, convenient installation, reliable operation and simple and convenient maintenance, and particularly accurately judge the end point of titration analysis, namely a chemical variable point, by the photometric colorimetric method, thereby accurately and automatically analyzing the concentration of a substance to be detected, and independently designing a plurality of liquid inlet hard tubes of different reagents to avoid the problem of cross contamination among the reagents.
The technical scheme of the frame structure is that the reaction device for photometric colorimetric method detection comprises a reaction device arranged on a vertical panel, the reaction device comprises a reaction main body unit, a detection unit, a liquid inlet unit and a stirring unit, the reaction main body unit comprises a reaction cup seat and a reaction cup made of transparent quartz glass arranged in a cavity of the reaction cup seat, a cup seat cover is arranged above the reaction cup seat, the stirring unit comprises a stirrer bracket arranged at the bottom of the reaction cup seat, a groove part is arranged on the stirrer bracket, a magnetic stirrer is arranged in the groove part and is matched with a magnetic stirring rotor arranged in the reaction cup, the detection unit comprises a light source emitting part and a light source signal collecting part, two opposite-face arranged openings are formed in the side wall of the bottom of the reaction cup seat, the two openings are respectively embedded with the light source emitting part and the light source signal collecting part, a light source emitted by the light source emitting part irradiates a solution in the reaction cup and sends a light intensity signal to the light source signal collecting part, the liquid inlet unit comprises a plurality of liquid inlet hard pipes, and each liquid inlet hard pipe is respectively connected with a liquid inlet seat arranged on the liquid inlet hard pipe.
As the preferable structure, the reaction cup adopts a cylindrical structure, an overflow port is arranged on the curved wall of the upper half part of the reaction cup, and a liquid outlet is arranged on the curved wall of the bottom part of the reaction cup.
Preferably, the liquid discharge port and the overflow port are located on the same plane.
As the preferable structure, the reaction cup seat and the cup seat cover are made of opaque plastic materials.
The structure is that an observation window is left on the front end face of the reaction cup seat, and a detachable and opaque window cover is arranged at the observation window.
As the preferable structure, the rear end face of the reaction cup seat is provided with two through holes which are respectively used for the passing through of the liquid draining port and the overflow port.
The reaction cup seat is characterized in that a fixing support is further arranged on the rear end face of the reaction cup seat, and the reaction cup seat is fixed on the vertical panel through the fixing support.
The structure is that the liquid inlet hard tube is made of PTFE material, the diameter of the liquid inlet hard tube is 3mm, an inverted cone type clamping sleeve connector is arranged outside the liquid inlet hard tube, and the clamping sleeve connector is fixed in the liquid inlet through hole.
The invention also provides a detection method of the reaction device for photometric colorimetric detection, which comprises the following steps:
S1, determining a substance to be detected in a sampling solution, determining a color developing agent which chemically reacts with the substance to be detected to generate solution color change, determining monochromatic light according to the relation between the solution color and the absorption light color, and selecting monochromatic light with proper wavelength;
S2, discharging the sampling liquid and the pure water into the reaction cup through a plurality of liquid inlet hard pipes respectively, rinsing the reaction cup, and discharging the liquid from a liquid outlet at the curved wall at the bottom of the reaction cup;
s3, discharging the sampling liquid into the reaction cup through the liquid inlet hard pipe, wherein the liquid level of the sampling liquid is positioned
A light source signal is transmitted to the light source signal collecting part by the light source transmitting part above the light source signal detection line;
S4, titrating a color reagent through another liquid inlet hard tube, and calculating by using a mathematical expression A= Kcb of lambert-beer law, wherein A is absorbance, namely the degree of absorption when monochromatic light passes through a solution, and is calculated according to the incident light intensity of a light source emitting part and the incident light intensity received by a light source signal collecting part, K is a light absorption coefficient, and for the same substance and the incident light with a certain wavelength, the K is a constant, and b is an optical path, namely the distance from one end of a reaction cup to the other end of the light source, so as to calculate the concentration of a substance to be measured C;
s5, in the titration process of the color reagent, generating a plurality of groups of data by using the titration step number and the calculated concentration and filling the data into an X-Y axis, wherein the X axis is the titration step number, the Y axis is the concentration of a substance to be detected, and the data connecting lines are sequentially used for finding out a titration end point, wherein the titration end point is the maximum value of the concentration of the substance to be detected, and the titration end point is the mutation point according to the slope value;
And S6, recording the titration step number of the developer at the titration end point, calculating by using a formula ST 1=K1R 1, wherein R1 is the titration step number at the titration end point, and K1 is a known slope value in an X-Y axis, so that the concentration value of the substance to be detected of ST1 is obtained, and the whole detection process is completed.
The reaction device has the advantages that the whole structure design is reasonable, the operation is stable and reliable, the liquid inlet unit is controlled to complete sampling work on the reaction main body unit, the solution in the reaction main body unit is stirred under the stirring unit, the reaction efficiency is improved, and the solution is detected and analyzed at the light source emitting part and the light source signal collecting part of the detection unit.
The detection method of the invention can accurately judge the end point of titration analysis, namely the chemical variable point, and accurately and reliably determine the concentration of the substance.
Drawings
FIG. 1 is a schematic cross-sectional structure of a reaction apparatus of the present invention.
FIG. 2 is a schematic perspective view of a reaction cup according to the present invention.
Fig. 3 is a schematic perspective view of a reaction cup holder according to the present invention.
Fig. 4 is a schematic perspective view of a fixing bracket according to the present invention.
FIG. 5 is a table of the relationship between the color of a solution and the color of absorbed light.
Reference numeral 1, a reaction cup; 2, a reaction cup seat; a light source emitting part; 4, a light source signal collecting part, 5, a cup seat cover, 6, a clamping sleeve connector, 7, a liquid inlet hard pipe, 8, a magnetic stirrer, 9, a stirrer bracket, 10, an overflow port, 11, a liquid discharge port, 13, an observation window, 14, an opening and 15, and a fixing bracket.
Detailed Description
The technical scheme of the specific embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
The reaction device for photometric colorimetric detection comprises a reaction device arranged on a vertical panel, wherein the reaction device comprises a reaction main body unit, a detection unit, a liquid inlet unit and a stirring unit, the liquid inlet unit is used for conveying sample liquid, titrating reagents and cleaning pure water independently according to requirements, solution in the reaction main body unit is stirred by the stirring unit to accelerate the mixing of the solution, and the concentration of the sample liquid in the reaction main body unit is detected by the detection unit, so that the purpose of detecting the concentration of the sample liquid is achieved.
The reaction main body unit comprises a reaction cup seat 2 and a reaction cup 1 made of transparent quartz glass arranged in a cavity of the reaction cup seat 2, a user can observe the color of solution inside the reaction cup 1, a cup seat cover 5 is arranged above the reaction cup seat 2, the reaction cup seat 2 and the cup seat cover 5 are made of opaque plastic materials, the accuracy of detection is prevented from being influenced by the injection of an external light source, in order to facilitate the observation of the color of the solution inside the reaction cup 1, an observation window 13 is reserved on the front end face of the reaction cup seat 2, a detachable and opaque window cover is arranged at the observation window 13, and the window cover is made of opaque plastic materials.
The stirring unit is including setting up agitator support 9 in reaction cup 2 bottom, be provided with a recess portion on the agitator support 9, settle in the recess portion has magnetic stirrer 8, magnetic stirrer 8 with the inside magnetism stirring rotor of placing of reaction cup 1 mutually support, and magnetism stirring rotor includes magnetism rotor, and magnetism rotor cladding has anticorrosive polytetrafluoroethylene layer outward, under the effect of magnetism stirrer, and magnetism stirring rotor stirs the solution of reaction cup 1, in order to fixed magnetism stirrer, at fixed magnetism stirrer
The recess portion top is equipped with the bottom, and the bottom passes through the screw will the magnetic stirrer fixes in the recess portion, the bottom is accomplished spacing fixedly to the magnetic stirrer, and the fixed bottom that needs the magnetic stirrer is fixed its four angles, under the circumstances of guaranteeing fixed magnetic stirrer, for better improvement stirring effect to be equipped with a round hole in the center department of bottom, the medium between magnetic stirrer and the magnetic stirring rotor is reduced to the purpose, improves stirring sensitivity.
The detection unit comprises a light source emission part 3 and a light source signal collection part 4, two openings 14 are formed in the side wall of the bottom of the reaction cup seat 2, the two openings 14 are respectively embedded with the light source emission part 3 and the light source signal collection part 4, the light source emission part 3 and the light source signal collection part 4 can finish detection as long as the light source signal detection point is below the liquid level, the detection can be finished in fewer solutions and faster in the bottom of the reaction cup seat 2, the detection time is shortened, the light source emitted by the light source emission part 3 irradiates the solution in the reaction cup 1 to send light intensity signals to the light source signal collection part 4 by adopting the arrangement of the opposite surfaces, and the detection sensitivity is improved.
The feed liquor unit includes a plurality of feed liquor hard tubes 7, and every feed liquor hard tube 7 is connected respectively still be equipped with the feed liquor through-hole on the cup lid 5, feed liquor hard tube 7 adopts the PTFE material to constitute, and its diameter is 3mm, feed liquor hard tube 7 is equipped with back taper cutting ferrule joint 6 outward, and cutting ferrule joint 6 is fixed the feed liquor through-hole needs different reagents to titrate in the testing process, and the setting of many feed liquor hard tubes is the cross contamination's problem appears with a reagent to avoid different reagents.
The reaction cup adopts cylindric structure, is equipped with an overflow mouth 10 on the curved wall of the first half of reaction cup 1, and the curved wall of the bottom of reaction cup 1 is equipped with a leakage fluid dram 11, leakage fluid dram 10 with overflow mouth 11 is located on a plane, and the rear end face of reaction cup seat 2 is equipped with two through-holes, and two through-holes are used for the crossing of leakage fluid dram 10 and overflow mouth 11 respectively, and the solution of reaction cup 1 can be realized wholly discharging on the curved wall of the bottom of reaction cup 1 to leakage fluid dram 10 setting, and overflow mouth 11 sets up and avoids solution to overflow and corrode reaction unit.
In order to ensure stability in the detection process, a fixing bracket 15 is further installed on the rear end face of the reaction cup holder 2, and the fixing bracket 15 fixes the reaction cup holder 2 on the vertical panel.
As shown in fig. 1, 2 and 5, a detection method of a reaction device for photometric colorimetric detection, the detection method of the reaction device comprises the following steps:
S1, determining a substance to be detected in a sampling solution, determining a color developing agent which chemically reacts with the substance to be detected to generate solution color change, determining monochromatic light according to the relation between the color of the solution and the color of absorbed light, and selecting monochromatic light with proper wavelength, wherein for example, KMnO4 solution is purple red under white light, namely, green light is mostly absorbed when the white light is transmitted through the solution, and other colors can be transmitted through the solution. The KMnO4 solution is red, and the CuSO4 solution absorbs yellow light, so the solution is blue. It can be seen that the color of the colored solution is complementary to the color of the absorbed light, and therefore the absorbed monochromatic light is selected according to fig. 5 based on the color produced by the chemical reaction of the substance to be tested and the developer.
S2, discharging the sampling liquid and the pure water into the reaction cup 1 through a plurality of liquid inlet hard pipes 7 respectively, rinsing the reaction cup 1, and discharging the liquid from a liquid outlet 11 at the curved wall of the bottom of the reaction cup 1 to ensure that the reaction cup 1 has no condition that other substances cause inaccurate data detection on concentration detection.
S3, discharging the sampling liquid into the reaction cup 1 through the liquid inlet hard tube 7, wherein the liquid level of the sampling liquid is above a light source signal detection line, a light source signal is sent to the light source signal collecting part 4 by the light source emitting part 3, and a certain height is reserved between the liquid level of the sampling liquid and the plane of the overflow port 10, so that the solution is not discharged from the overflow port 10 in the titration process of the color reagent.
And S4, titrating the color reagent through the other liquid inlet hard tube 7, and calculating by using a mathematical expression A= Kcb of lambert-beer law, wherein A is absorbance, namely the degree of absorption when monochromatic light passes through the solution, and is calculated according to the incident light intensity of a light source emitting part and the incident light intensity received by a light source signal collecting part, K is a light absorption coefficient, and for the same substance and the incident light with a certain wavelength, the K is a constant, and b is an optical path, namely the distance from one end of a reaction cup to the other end of the light source, so as to calculate the concentration of the substance to be tested C.
S5, in the titration process of the color reagent, generating a plurality of groups of data by using the titration step number and the calculated concentration, filling the data into an X-Y axis, wherein the X axis is the titration step number, the Y axis is the concentration of the substance to be detected, sequentially finding out a titration end point by using a data connecting line, wherein the titration end point is the maximum value of the concentration of the substance to be detected, and judging the titration end point to be a mutation point according to the slope value, so that after a certain mass of the substance to be detected chemically reacts with the color reagent, the color reagent dripped at the back can not react further, the titration end point is the chemical variable end point of the chemical reaction, and the concentration of the substance to be detected by the titration end point is more accurate.
And S6, recording the titration step number of the developer at the titration end point, calculating by using a formula ST 1=K1R 1, wherein R1 is the titration step number at the titration end point, and K1 is a known slope value in an X-Y axis, so that the concentration value of the substance to be detected of ST1 is obtained, and the whole detection process is completed.
It should be noted that some chemical reaction processes require reaction under acidic or basic conditions, and that an acidic or basic solution that does not chemically react with the analyte may be added.
The reaction device is used in a titration analysis instrument, and a control unit and a display unit in the titration analysis instrument are used for realizing intelligent control and management of the reaction device.
According to different parameters to be measured, different titration chemical reactions are carried out, a corresponding absorption curve is pulled out, the optimal absorption wavelength is selected, because the content of a measured substance with the optimal absorption wavelength is low, larger absorbance can be obtained, the analysis sensitivity is higher, when the titration reaction reaches the vicinity of a chemical variable point, the light intensity value of the absorption wavelength has obvious mutation, the light intensity value of the absorption wavelength in the whole titration process is recorded, the concentration of a sampling liquid in the titration process is calculated by using a formula A= Kcb through a lambert-beer law, an X-Y coordinate is established, an X axis is the number of titration steps, the Y axis is the concentration of the sampling liquid, corresponding data is filled into the X-Y coordinate to generate a curve, the mutation point of the light intensity value in the whole titration process is judged, the mutation point is the chemical variable point of the titration reaction, a titration end point is the titration end point, the titration end point is the point, the color change of the chemical reaction of the sampling liquid and the color developer does not obviously increase, the titration end point is the peak value of the curve, the titration end point is the titration end point, the concentration of the sample liquid is calculated by using a formula R1, the concentration of the sample is calculated by using the formula R1, the K1, the concentration of the sample is calculated by using the K1, the K1 is the value, the concentration of the sample is calculated, and the concentration 1 is the value, and the value is obtained.
While the preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments and examples, and various changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (4)
1. The reaction device for photometric colorimetric detection comprises a reaction device arranged on a vertical panel and is characterized by comprising a reaction main body unit, a detection unit, a liquid inlet unit and a stirring unit, wherein the reaction main body unit comprises a reaction cup seat, a reaction cup made of transparent quartz glass is arranged in a cavity of the reaction cup seat, and a cup seat cover is arranged above the reaction cup seat;
The stirring unit comprises a stirrer bracket arranged at the bottom of the reaction cup seat, a groove part is arranged on the stirrer bracket, a magnetic stirrer is arranged in the groove part, and the magnetic stirrer is matched with a magnetic stirring rotor arranged in the reaction cup;
The detection unit comprises a light source emission part and a light source signal collection part, wherein two openings which are arranged on opposite faces are arranged on the side wall of the bottom of the reaction cup seat, and the light source emission part and the light source signal collection part are respectively embedded in the two openings;
The liquid inlet unit comprises a plurality of liquid inlet hard pipes, and each liquid inlet hard pipe is respectively connected with a liquid inlet through hole which is further formed in the cup seat cover;
The reaction cup adopts a cylindrical structure, an overflow port is arranged on the curved wall of the upper half part of the reaction cup, and a liquid outlet is arranged on the curved wall of the bottom part of the reaction cup;
The liquid outlet and the overflow port are positioned on the same plane;
The rear end face of the reaction cup seat is provided with two through holes which are respectively used for the passing through of the liquid discharge port and the overflow port;
A fixing bracket is also arranged on the rear end surface of the reaction cup seat, and the reaction cup seat is fixed on the vertical panel by the fixing bracket;
The detection method of the reaction device comprises the following steps:
S1, determining a substance to be detected in a sampling solution, determining a color developing agent which chemically reacts with the substance to be detected to generate solution color change, determining monochromatic light according to the relation between the solution color and the absorption light color, and selecting monochromatic light with proper wavelength;
S2, discharging the sampling liquid and the pure water into the reaction cup through a plurality of liquid inlet hard pipes respectively, rinsing the reaction cup, and discharging the liquid from a liquid outlet at the curved wall at the bottom of the reaction cup;
S3, discharging the sampling liquid into the reaction cup through the liquid inlet hard pipe, wherein the liquid level of the sampling liquid is above a light source signal detection line, and the light source signal is sent to a light source signal collecting part by a light source emitting part;
S4, titrating a color reagent through another liquid inlet hard tube, and calculating by using a mathematical expression A= Kcb of lambert-beer law, wherein A is absorbance, namely the degree of absorption when monochromatic light passes through a solution, and is calculated according to the incident light intensity of a light source emitting part and the incident light intensity received by a light source signal collecting part, K is a light absorption coefficient, and for the same substance and the incident light with a certain wavelength, the K is a constant, and b is an optical path, namely the distance from one end of a reaction cup to the other end of the light source, so as to calculate the concentration of a substance to be measured C;
s5, in the titration process of the color reagent, generating a plurality of groups of data by using the titration step number and the calculated concentration and filling the data into an X-Y axis, wherein the X axis is the titration step number, the Y axis is the concentration of a substance to be detected, and the data connecting lines are sequentially used for finding out a titration end point, wherein the titration end point is the maximum value of the concentration of the substance to be detected, and the titration end point is the mutation point according to the slope value;
And S6, recording the titration step number of the developer at the titration end point, calculating by using a formula ST 1=K1R 1, wherein R1 is the titration step number at the titration end point, and K1 is a known slope value in an X-Y axis, so that the concentration value of the substance to be detected of ST1 is obtained, and the whole detection process is completed.
2. The reaction device for photometric colorimetric detection as set forth in claim 1, wherein the reaction cup holder and the cup cover are made of opaque plastic materials.
3. The reaction device for photometric colorimetric detection as set forth in claim 2, wherein an observation window is left on the front end face of the reaction cup holder, and a detachable and opaque window cover is installed at the observation window.
4. The reaction device for photometric colorimetric detection as set forth in claim 1, wherein the liquid-feeding hard tube is made of PTFE material and has a diameter of 3mm, and an inverted cone-shaped ferrule connector is arranged outside the liquid-feeding hard tube and fixed in the liquid-feeding through hole.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352955A (en) * | 2015-09-30 | 2016-02-24 | 王竞 | Spectrophotometric method liquid analysis method and apparatus |
| CN211927666U (en) * | 2020-03-27 | 2020-11-13 | 安徽帝业分析仪器有限公司 | Reaction device for photometric colorimetric detection |
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| TW200846666A (en) * | 2007-05-16 | 2008-12-01 | Ming-hui ZHAO | Online titration analyzer |
| CN104062291B (en) * | 2014-06-23 | 2016-09-14 | 深圳市盛波光电科技有限公司 | The assay method of KI concentration in a kind of KI and H3BO3 mixed solution |
| CN107764933A (en) * | 2017-11-22 | 2018-03-06 | 上海北裕分析仪器股份有限公司 | A kind of titration outfit and the titration method applied to analyzer |
| CN109342408B (en) * | 2018-10-08 | 2020-11-17 | 辽宁科技大学 | Industrial chemistry intelligent titration method and system based on image color information extraction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105352955A (en) * | 2015-09-30 | 2016-02-24 | 王竞 | Spectrophotometric method liquid analysis method and apparatus |
| CN211927666U (en) * | 2020-03-27 | 2020-11-13 | 安徽帝业分析仪器有限公司 | Reaction device for photometric colorimetric detection |
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