A device for determining the critical micelle concentration of heavy alkylbenzenesulfonic acids

Abstract

The utility model discloses a kind of detection devices of determining heavy alkyl benzene sulfonic acid critical micelle concentration, including liquid preparation mechanism, the liquid preparation mechanism includes bottom plate, with the multiple supports of multiple supports top fixed connection and a drawing frame, multiple fences respectively with multiple supports top fixed connection, lift plate connected between multiple fences, two electric push rods fixed between the bottom plate and lift plate, two electric push rods are connected in series.In the utility model, when determining operation is carried out, electric push rod movable end elongation, then fence is lifted, multiple concentration different sample solution to be measured can be configured in multiple fences, then after being determined by conductivity electrode, control electric push rod movable end contraction, then fence is laid flat, then clear water is poured to lift plate top, can natural flushing fence area's sample liquid to be determined, to achieve the purpose of quick cleaning, improve the device use comfort.

Description

Technical Field

[0001] This utility model relates to the field of critical micelle concentration detection technology for heavy alkylbenzene sulfonic acid, specifically to a device for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid. Background Technology

[0002] Critical micelle concentration (CMC) determination of heavy alkylbenzene sulfonic acid is a crucial analytical procedure for identifying the minimum concentration at which micelles begin to form in solution. A conductivity method is typically used. When the concentration of the surfactant (heavy alkylbenzene sulfonic acid) is below its CMC, it exists primarily as single ions in solution, and the solution conductivity exhibits a strong linear relationship with concentration. When the concentration reaches and exceeds the CMC, micelles begin to form. Because the charge and mobility of micelles are lower than those of single ions, the slope of the solution conductivity change significantly. By plotting the conductivity-concentration relationship, the inflection point on the curve represents the CMC.

[0003] In determining the critical micelle concentration of heavy alkylbenzene sulfonic acid, a series of sample solutions with gradient concentrations (usually 10–15) need to be precisely prepared to ensure the accuracy of the results. However, this process generates a large number of sample containers and equipment that need to be cleaned after the experiment, making the cleaning work cumbersome, significantly increasing the operational burden, and affecting the ease of use. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A detection device for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid includes a solution preparation mechanism. The solution preparation mechanism includes a base plate, a plurality of pillars fixed to the top of the base plate and an easel, a plurality of enclosures fixed to the top of the plurality of pillars respectively, a lifting plate connected between the plurality of enclosures, and two electric push rods fixed between the base plate and the lifting plate, the two electric push rods being connected in series.

[0007] By adopting the above technical solution, during the measurement operation, the movable end of the electric push rod extends, and then the enclosure is raised. Multiple sample solutions of different concentrations can be placed in multiple enclosures. After the measurement is completed by the conductivity electrode, the movable end of the electric push rod is controlled to retract, and then the enclosure is flattened. Then, clean water is poured onto the top of the lifting plate to naturally rinse the sample liquid in the enclosure area, thereby achieving the purpose of rapid cleaning and improving the comfort of using this device.

[0008] In a preferred embodiment, the present invention can be further configured as follows: multiple pillars are spaced equally and arranged in two rows, the pillars being made of plastic material.

[0009] In a preferred embodiment, the present invention can be further configured as follows: the painting frame is mounted on the rear side of the lifting plate, the painting frame is composed of multiple vertical rods and a rectangular plate, the rectangular plate is inclined, the bottom end of the vertical rod is fixedly connected to the top of the base plate, and the top end of the vertical rod is fixedly connected to the bottom of the rectangular plate.

[0010] In a preferred embodiment, the present invention can be further configured such that: a temperature-regulating component is provided on the base plate, the temperature-regulating component includes multiple heating elements respectively embedded in multiple support columns, and a temperature controller fixedly connected to the front side of the base plate.

[0011] In a preferred embodiment, this invention can be further configured as follows: multiple heating elements are connected in series, and the heating elements are electrically connected to a temperature controller.

[0012] In a preferred embodiment, the present invention can be further configured such that: a drainage assembly is provided on the base plate, the drainage assembly includes a water guide groove opened at the top of the base plate, four drainage channels passing through the front, rear and side walls of the base plate respectively, and multiple support columns are located inside the water guide groove.

[0013] In a preferred embodiment, the present invention can be further configured such that the bottom surface of the drain channel is flush with the bottom surface of the guide channel, and the interior of the drain channel is connected to the interior of the guide channel.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. In this utility model, during the measurement operation, the movable end of the electric push rod extends, and then the enclosure is raised. Multiple sample solutions of different concentrations can be placed in multiple enclosures. After the measurement is completed by the conductivity electrode, the movable end of the electric push rod is controlled to retract, and then the enclosure is flattened. Then, clean water is poured onto the top of the lifting plate to naturally rinse the sample liquid in the enclosure area, thereby achieving the purpose of rapid cleaning and improving the comfort of using this device.

[0016] 2. In this utility model, when clean water is poured on the top of the lifting plate, the clean water rinses the sample solution to be tested in multiple enclosure areas. Then, the mixed liquid enters the water guide tank and is discharged through multiple drainage channels, which makes it convenient for staff to collect the mixed liquid and avoids the mixed liquid flowing randomly and causing pollution to the working environment. Attached Figure Description

[0017] Figure 1 This is a top view of the overall structure of this utility model;

[0018] Figure 2 This is a perspective view of the overall structure of this utility model;

[0019] Figure 3This is a schematic diagram of the liquid dispensing mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram showing the relationship between the constant temperature component and the drainage component of this utility model.

[0021] Figure label:

[0022] 100. Liquid preparation mechanism; 110. Base plate; 120. Support column; 130. Enclosure; 140. Lifting platform; 150. Electric actuator; 160. Easel;

[0023] 200. Thermostatic component; 210. Heating element; 220. Temperature controller;

[0024] 300. Drainage components; 310. Water guide channel; 320. Drainage channel.

[0025] The heating element 210 in the constant temperature assembly 200 can provide a stable temperature environment for the device, while the temperature controller 220 can accurately control the temperature to ensure that the experiment is carried out under suitable temperature conditions, thereby improving the accuracy and reliability of the experimental results.

[0026] The drainage assembly 300 is ingeniously designed. The water guide trough 310 collects the liquid inside the apparatus, while the drain channel 320 drains the collected liquid out of the apparatus, preventing liquid accumulation and ensuring smooth operation. The bottom surface of the drain channel 320 is flush with the bottom surface of the water guide trough 310 and is internally connected, guaranteeing smooth drainage and effectively preventing liquid residue and blockage. This drainage design allows for quick cleaning after use, improving the apparatus's efficiency and lifespan.

[0027] Through the coordinated operation of these components, the detection device for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid of this invention can efficiently and accurately complete the detection task, providing strong support for related experiments and research. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0029] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0030] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a detection device for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid.

[0031] Example 1:

[0032] Combination Figure 1-4 As shown, the present invention provides a detection device for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid, including a liquid preparation mechanism 100. The liquid preparation mechanism 100 includes a base plate 110, a plurality of support columns 120 fixedly connected to the top of the base plate 110 and an easel 160, a plurality of enclosures 130 fixedly connected to the top of the plurality of support columns 120 respectively, a lifting plate 140 connected between the plurality of enclosures 130, and two electric push rods 150 fixedly connected between the base plate 110 and the lifting plate 140, the two electric push rods 150 being connected in series.

[0033] Furthermore, multiple pillars 120 are evenly spaced and arranged in two rows. The pillars 120 are made of plastic material. The layout design of multiple pillars 120 provides conditions for the conductivity electrode to detect test sample solutions of different concentrations one by one.

[0034] Furthermore, the drawing frame 160 is located behind the lifting plate 140. The drawing frame 160 consists of multiple vertical rods and a rectangular plate. The rectangular plate is inclined. The bottom end of the vertical rod is fixed to the top of the base plate 110, and the top end of the vertical rod is fixed to the bottom of the rectangular plate. The structural and layout design of the drawing frame 160 facilitates users to draw and observe the drawing images on the drawing frame 160.

[0035] Example 2:

[0036] Combination Figure 1 , 2 and Figure 4 As shown, based on Embodiment 1, the base plate 110 is provided with a constant temperature component 200. The constant temperature component 200 includes multiple heating elements 210 respectively embedded in multiple support columns 120 and a temperature controller 220 fixed to the front side of the base plate 110. By controlling the heating temperature of the multiple heating elements 210 through the temperature controller 220, the temperature of the sample solution to be tested inside the enclosure 130 can be set and stabilized at the target measurement temperature (e.g., 25.0±0.1℃), ensuring the accuracy of the measurement results.

[0037] Furthermore, multiple heating elements 210 are connected in series, and the heating elements 210 are electrically connected to the temperature controller 220. This connection method improves the comfort of controlling multiple heating elements 210.

[0038] Example 3:

[0039] Combination Figure 1-4As shown, in the above embodiment, the base plate 110 is provided with a drainage assembly 300. The drainage assembly 300 includes a water guide trough 310 opened at the top of the base plate 110 and four drainage channels 320 that pass through the front, rear and side walls of the base plate 110 respectively. Multiple support columns 120 are located inside the water guide trough 310. When clean water is poured on the top of the lifting plate 140, the clean water rinses the sample solution to be tested in multiple enclosure 130 areas. Then the mixed liquid enters the water guide trough 310 and is discharged through multiple drainage channels 320, which facilitates the collection of the mixed liquid by the staff.

[0040] Furthermore, the bottom surface of the drain channel 320 is flush with the bottom surface of the guide channel 310, and the interior of the drain channel 320 is connected to the interior of the guide channel 310. The installation method of the drain channel 320 can ensure that the mixed liquid in the guide channel 310 flows out.

[0041] Working principle and usage process of this utility model:

[0042] A. Solution preparation

[0043] A high-concentration stock solution of heavy alkylbenzene sulfonic acid is prepared using high-purity deionized water. Then, the movable ends of two electric push rods 150 are extended to raise the enclosure 130 using the lifting plate 140. A series (usually 10-15) of test sample solutions with varying concentrations from low to high and uniformly spaced are then precisely prepared inside multiple enclosures 130 through a stepwise dilution process.

[0044] B. System Preparation and Calibration

[0045] Preheat the external conductivity electrode, then immerse the conductivity electrode in deionized water to clean it, and then rinse it several times with the solution to be tested.

[0046] C. Conductivity Measurement

[0047] Completely immerse the conductivity electrode below the liquid surface, ensuring the electrode plate is facing correctly. Then, slowly stir the conductivity electrode (1-2 minutes) and record the precise conductivity value at that concentration. After the measurement is complete, remove the electrode and rinse it with the next concentration of the solution to be tested. Then, repeat the above measurement steps until all concentration samples have been measured.

[0048] D. Data Processing and CMC Determination

[0049] All measured conductivity values ​​and their corresponding concentration values ​​are compiled into a table. With concentration as the x-axis and conductivity as the y-axis, a scatter plot is drawn on an easel 160. Observing the graph, it can be found that there are two straight lines with different slopes in the low concentration region and the high concentration region. Then, linear fitting is performed on the two regions with good linearity. The concentration value corresponding to the intersection of the two fitted lines is the critical micelle concentration of heavy alkylbenzene sulfonic acid at that temperature.

[0050] E. End of work

[0051] After the measurement is completed, the movable ends of the two electric push rods 150 are retracted, and then the lifting plate 140 is lowered to flatten the enclosure 130. Then, clean water is poured onto the top of the lifting plate 140 and the multiple enclosures 130, which greatly improves the cleaning efficiency.

[0052] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A device for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid, comprising a solution preparation mechanism (100), characterized in that: The liquid dispensing mechanism (100) includes a base plate (110), a plurality of support columns (120) fixed to the top of the base plate (110) and an easel (160), a plurality of enclosures (130) fixed to the top of the plurality of support columns (120) respectively, a lifting plate (140) connected between the plurality of enclosures (130), and two electric push rods (150) fixed between the base plate (110) and the lifting plate (140), the two electric push rods (150) being connected in series.

2. The apparatus for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid according to claim 1, characterized in that, Multiple supports (120) are spaced at equal intervals and arranged in two rows, the supports (120) being made of plastic material.

3. The detection device for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid according to claim 1, characterized in that, The easel (160) is located behind the lifting plate (140). The easel (160) consists of multiple vertical rods and a rectangular plate. The rectangular plate is inclined. The bottom end of the vertical rod is fixed to the top of the base plate (110), and the top end of the vertical rod is fixed to the bottom of the rectangular plate.

4. The apparatus for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid according to claim 1, characterized in that, The base plate (110) is provided with a constant temperature component (200), which includes multiple heating elements (210) embedded in multiple support columns (120) and a temperature controller (220) fixed to the front side of the base plate (110).

5. The apparatus for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid according to claim 4, characterized in that, Multiple heating elements (210) are connected in series, and the heating elements (210) are electrically connected to the temperature controller (220).

6. The apparatus for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid according to claim 1, characterized in that, The base plate (110) is provided with a drainage assembly (300), which includes a water guide groove (310) opened at the top of the base plate (110), four drainage channels (320) passing through the front, rear and side walls of the base plate (110) respectively, and multiple support columns (120) are located inside the water guide groove (310).

7. The apparatus for determining the critical micelle concentration of heavy alkylbenzene sulfonic acid according to claim 6, characterized in that, The bottom surface of the drainage channel (320) is flush with the bottom surface of the water guide channel (310), and the interior of the drainage channel (320) is connected to the interior of the water guide channel (310).

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