A multi-channel nitrocellulose microporous membrane lateral chromatography rate test device

Abstract

The utility model relates to nitrocellulose microporous membrane chromatography rate test technical field discloses a kind of multi-channel nitrocellulose microporous membrane lateral chromatography rate test device, comprising: base, with overflow groove and multiple liquid storage tanks, each liquid storage tank is located in the side of overflow groove;Liquid baffle, liquid baffle is between base and each liquid storage tank;Anti -skid component, installation is in base, anti -skid component has multiple groups, multiple anti -skid components one to one corresponding in multiple liquid storage tanks;Object table, detachably installed in base, object table is located in each liquid storage tank, object table has slope, slope is used to carry multiple samples, so that the bottom of each sample extends into each liquid storage tank and is abutted on each anti -skid component;And water absorption plate, including water absorption part and extension, water absorption part is located in the top of liquid baffle, extension is located in overflow groove.The utility model's test device, realize multi-channel test, improve test efficiency, and guarantee the consistency and accuracy of test.

Description

Technical Field

[0001] This utility model relates to the field of nitrocellulose microporous membrane chromatography rate testing technology, and in particular to a multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device. Background Technology

[0002] Nitrocellulose microporous membranes (NC membranes) are the raw materials for manufacturing reagent kits. Chromatography rate is a key performance indicator of NC membranes, and different models and specifications of NC membranes are distinguished and labeled based on their chromatography rate. Currently, NC membrane chromatography rate testing devices have the following drawbacks: the testing device has few channels, requiring waiting time for a large number of tests, resulting in long testing times and affecting detection efficiency; and it cannot control the liquid level height for each test, affecting the consistency and accuracy of the test. Utility Model Content

[0003] The purpose of this invention is to provide a multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device, which enables multi-channel testing, improves testing efficiency, and ensures the consistency and accuracy of the test.

[0004] To achieve the above objectives, this utility model provides a multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device, comprising:

[0005] The base has an overflow trough and multiple liquid storage tanks, with each liquid storage tank located on one side of the overflow trough;

[0006] A liquid baffle is installed on the base, and the liquid baffle is located between the base and each of the liquid storage tanks;

[0007] Anti-slip components are installed on the base, and there are multiple sets of anti-slip components, with each set of anti-slip components corresponding to one of multiple liquid storage tanks.

[0008] A stage, detachably mounted on the base, is disposed on each of the liquid storage tanks. The stage has an inclined surface for supporting multiple samples, allowing the bottom of each sample to extend into each of the liquid storage tanks and abut against each of the anti-slip components; and

[0009] The absorbent plate includes an absorbent portion and an extension portion, wherein the absorbent portion is located on top of the baffle plate and the extension portion is located in the overflow groove.

[0010] In some embodiments, an illumination unit is included, the stage is a transparent stage, the stage has a mounting surface, and the illumination unit is mounted on the mounting surface.

[0011] In some embodiments, the mounting surface is a frosted surface.

[0012] In some embodiments, the inclined surface has graduations for measuring the chromatographic length of a sample.

[0013] In some embodiments, the depth of the overflow tank is a, the depth of the liquid storage tank is b, and the height of the baffle plate is c, then a > b > c.

[0014] In some embodiments, the anti-slip component includes a plurality of spaced protrusions, the height of which is d, and d < c.

[0015] In some embodiments, the angle between the inclined plane and the horizontal direction is 30°-45°.

[0016] In some embodiments, the bottom sides of the platform are provided with locking blocks, and the two outer walls of the base have locking slots, in which the locking blocks are installed.

[0017] In some embodiments, the size of the card block is adapted to the size of the card slot, and the upper width of the card block is greater than the lower width of the card block.

[0018] In some embodiments, the side of the absorbent portion near the liquid storage tank is flush with the side of the baffle plate near the liquid storage tank.

[0019] This invention provides a multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device, which has the following advantages compared with the prior art:

[0020] The base includes an overflow trough and multiple liquid storage tanks, each located on one side of the overflow trough. Anti-slip components are installed on the base, with multiple sets of anti-slip components corresponding one-to-one within each of the liquid storage tanks. A detachable stage is installed on the base, positioned on each of the liquid storage tanks. The stage has an inclined surface to support multiple samples, allowing the bottom of each sample to extend into each liquid storage tank and abut against the anti-slip components. This enables multi-channel testing and improves testing efficiency. A baffle plate is installed on the base, positioned between the base and each of the liquid storage tanks. An absorbent plate includes an absorbent portion and an extension portion. The absorbent portion is located at the top of the baffle plate, and the extension portion is located in the overflow trough. Thus, when the liquid in the storage tanks is full, it flows into the overflow trough through the absorbent plate, ensuring a consistent liquid level in each tank and guaranteeing testing consistency and accuracy. Attached Figure Description

[0021] Figure 1 A three-dimensional structural schematic diagram of the multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device provided in this embodiment of the present invention.

[0022] Figure 2This is a top view of the multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device provided in this embodiment of the invention.

[0023] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure along direction A.

[0024] Figure 4 A three-dimensional structural diagram of the base of the multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device provided in this embodiment of the utility model.

[0025] Figure 5 A three-dimensional structural diagram of the stage of the multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device provided in this embodiment of the present invention.

[0026] In the figure: 1. Base; 11. Overflow groove; 12. Liquid storage tank; 13. Slot; 2. Liquid baffle; 3. Anti-slip component; 4. Stage; 41. Inclined surface; 42. Mounting surface; 43. Block; 5. Absorbent plate; 51. Absorbent part; 52. Extension part; 6. Sample; 7. Lighting unit. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0028] It should be understood that in the description of this application, the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are used solely for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. That is, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Furthermore, unless otherwise stated, "a plurality of" means two or more.

[0029] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0030] like Figures 1-5 As shown, the multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device of this utility model includes: a base 1, a baffle plate 2, an anti-slip component 3, a stage 4, and an absorbent plate 5.

[0031] The base 1 has an overflow tank 11 and multiple liquid storage tanks 12, each of which is located on one side of the overflow tank 11. Liquid is injected into the liquid storage tank 12 to raise the liquid level. Once the level exceeds a certain limit, the liquid flows into the overflow tank 11.

[0032] The baffle plate 2 is installed on the base 1 and is located between the base 1 and each liquid storage tank 12. In this way, when the liquid level in the liquid storage tank 12 exceeds the baffle plate 2, the liquid will flow into the overflow tank 11.

[0033] The anti-slip component 3 is installed on the base 1. There are multiple sets of anti-slip components 3, and each set of anti-slip components 3 is located in one of the multiple liquid storage tanks 12. In this way, multi-channel testing can be achieved.

[0034] The stage 4 is detachably mounted on the base 1 and is positioned on each liquid storage tank 12. The stage 4 has an inclined surface 41 for supporting multiple samples 6, allowing the bottom of each sample 6 to extend into each liquid storage tank 12 and abut against each anti-slip component 3. The sample 6 is a nitrocellulose microporous membrane. In this way, the sample 6 can be stably placed on the inclined surface 41, and the bottom of the sample 6 is limited by the anti-slip components 3 to prevent slippage and ensure detection accuracy.

[0035] The absorbent plate 5 includes an absorbent portion 51 and an extension portion 52. The absorbent portion 51 is located on top of the baffle plate 2, and the extension portion 52 is located in the overflow tank 11. Thus, when the liquid level in the storage tank 12 exceeds the baffle plate 2, the liquid is transferred to the extension portion 52 by the siphon effect of the absorbent portion 51 and eventually enters the overflow tank 11, thereby ensuring that the liquid level in the storage tank 12 is equal to the height of the baffle plate 2. For example, the absorbent plate 5 is made of hydrophilic open-cell foamed polyurethane material.

[0036] It should be noted that, due to the surface tension of the liquid itself, if the absorbent plate 5 is not installed, the liquid level in the storage tank 12 may exceed the height of the baffle plate 2, and the liquid in the storage tank 12 may still not flow into the overflow tank 11, resulting in the inability to accurately control the liquid level in the storage tank 12, which further affects the accuracy of the detection.

[0037] During testing, liquid is injected into each storage tank 12 and allowed to overflow into the overflow tank 11. Multiple samples 6 are placed on the inclined surface 41 and the bottom of the samples 6 is made to abut against the anti-slip component 3. The chromatography rate is calculated by recording the chromatography time and chromatography distance of the samples 6.

[0038] Based on the above structural design, multi-channel testing of nitrocellulose microporous membranes can be achieved, improving testing efficiency and ensuring testing consistency and accuracy.

[0039] like Figure 3As shown, in some embodiments, an illumination unit 7 is included, and the stage 4 is a transparent stage, specifically made of one or more materials selected from transparent PC, PMMA, glass, etc. The stage 4 has a mounting surface 42, and the illumination unit 7 is mounted on the mounting surface 42. The illumination unit 7 is a battery-powered lamp with controllable brightness. The light from the illumination unit 7 enters from the mounting surface 42 and exits from the inclined surface 41, which facilitates clear measurement of the chromatographic distance of the sample 6.

[0040] In some embodiments, the mounting surface 42 is a frosted surface. This improves the scattering of incident light, increases the flexibility of the light source, and reduces eye irritation.

[0041] In some embodiments, the inclined plane 41 has graduations for measuring the chromatographic length of sample 6. Thus, the chromatographic distance of the liquid on sample 6 can be observed immediately during the testing process without the need for other measuring tools.

[0042] like Figure 4 As shown, in some embodiments, the depth of the overflow tank 11 is a, the depth of the storage tank 12 is b, and the height of the baffle plate 2 is c, satisfying a > b > c. Thus, the liquid in the storage tank 12 can smoothly overflow into the overflow tank 11.

[0043] like Figure 4 As shown, in some embodiments, the anti-slip component 3 includes multiple spaced protrusions with a height of d, satisfying d < c. This allows for free flow of liquid through the gaps between the protrusions. The height of the protrusions is less than the height of the baffle 2 and the height of the liquid surface, thus avoiding test errors caused by changes in liquid level due to surface tension. When the sample 6 is placed on the inclined surface 41, the protrusions can abut against the bottom of the sample 6, ensuring that the sample 6 is placed at a fixed tilt angle without sliding.

[0044] In some embodiments, the angle between the inclined surface 41 and the horizontal direction is 30°-45°. An excessively large or small inclination angle of the inclined surface 41 is not conducive to the contact and limiting of the sample 6 and the anti-slip component 3.

[0045] In such Figure 4 and 5 As shown, in some embodiments, the bottom sides of the stage 4 are provided with locking blocks 43, and the two outer walls of the base 1 have locking grooves 13, in which the locking blocks 43 are installed. In this way, the stage 4 is stably mounted on the base 1.

[0046] In such Figure 4 and 5As shown, in some embodiments, the size of the locking block 43 is adapted to the size of the locking slot 13, and the upper width of the locking block 43 is greater than the lower width of the locking block 43. This makes it easier to disassemble the platform 4 and can limit the horizontal position of the platform 4.

[0047] like Figure 3 As shown, in some embodiments, the side of the water-absorbing part 51 near the liquid storage tank 12 is flush with the side of the baffle plate 2 near the liquid storage tank 12. In this way, the liquid level in the liquid storage tank 12 can be siphoned by the water-absorbing part 51 just above the baffle plate 2.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A multi-channel nitrocellulose microporous membrane lateral flow rate test device characterized by, include: The base has an overflow trough and multiple liquid storage tanks, with each liquid storage tank located on one side of the overflow trough; A liquid baffle is installed on the base, and the liquid baffle is located between the base and each of the liquid storage tanks; Anti-slip components are installed on the base, and there are multiple sets of anti-slip components, with each set of anti-slip components corresponding to one of multiple liquid storage tanks. A stage is detachably installed on the base. The stage is disposed on each of the liquid storage tanks. The stage has an inclined surface for supporting multiple samples, so that the bottom of each sample extends into each of the liquid storage tanks and abuts against each of the anti-slip components. as well as The absorbent plate includes an absorbent portion and an extension portion, wherein the absorbent portion is located on top of the baffle plate and the extension portion is located in the overflow groove.

2. The multi-channel nitrocellulose microporous membrane lateral flow rate test device of claim 1, wherein, It includes a lighting unit, the stage is a transparent stage, the stage has a mounting surface, and the lighting unit is mounted on the mounting surface.

3. The multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device according to claim 2, characterized in that, The mounting surface is frosted.

4. The multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device according to claim 1, characterized in that, The inclined surface has graduations, which are used to measure the chromatographic length of the sample.

5. The multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device according to claim 1, characterized in that, If the depth of the overflow tank is a, the depth of the liquid storage tank is b, and the height of the baffle plate is c, then a > b > c.

6. The multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device according to claim 5, characterized in that, The anti-slip component includes multiple spaced protrusions, and the height of the protrusions is d, which satisfies d < c.

7. The multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device according to claim 1, characterized in that, The angle between the inclined plane and the horizontal direction is 30°-45°.

8. The multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device according to claim 1, characterized in that, The bottom of the platform is provided with locking blocks on both sides, and the two outer walls of the base are provided with locking slots, in which the locking blocks are installed.

9. The multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device according to claim 8, characterized in that, The size of the card block is adapted to the size of the card slot, and the upper width of the card block is greater than the lower width of the card block.

10. The multi-channel nitrocellulose microporous membrane lateral chromatography rate testing device according to claim 1, characterized in that, The side of the absorbent part near the liquid storage tank is flush with the side of the baffle plate near the liquid storage tank.

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