Analysis device member

Abstract

To provide an analysis device member which facilitates assembly of a tubular member and can be reduced in a thickness.SOLUTION: An analysis device member 10 provided herein is used for an analysis device 1 for analyzing properties of liquid passing through a flow channel 2a of a tubular member 2 and comprises a substantially flat dripping part 11 for moving dripping liquid toward a reception port 2b of the tubular member, the dripping member having a first area 12 formed to surround, in plan view, the reception port positioned thereabove, and a second area 15 formed to surround the first area so as to have a greater contact angle with the liquid than the first area.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a component for an analyzer used in an analyzer for analyzing the characteristics of a liquid flowing through a flow path of a tubular member. [Background technology]

[0002] For example, Patent Document 1 listed below discloses an analytical device component used in an analytical device that analyzes the characteristics of a liquid flowing through a flow path. The analytical device component disclosed in Patent Document 1 has a main body provided with a bottomed, concave liquid reservoir portion that opens upward and into which test liquid is poured, and a storage space portion that communicates with the liquid reservoir portion and stores a glass tube. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2022-122370 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the analytical device component described in Patent Document 1, it was necessary to fit the glass tube into the storage cavity and align the opening with the appropriate position of the liquid reservoir before assembling it. In addition, since the component has a liquid reservoir into which the test liquid is poured and a storage cavity for storing the glass tube, the component tends to be bulky, and if it is a disposable component, the amount of waste tends to be large.

[0005] The present invention has been made in view of the above circumstances, and has an object to provide an analytical device component which allows easy assembly of a tubular member and which can be made thin. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the analytical device component of the present invention is a component for an analytical device used in an analytical device that analyzes the characteristics of a liquid passing through a flow path of a tubular member, and is characterized in that it has a substantially flat dripping portion that moves the dripped liquid toward a receiving inlet of the tubular member, and the dripping portion has a first area formed to surround the receiving inlet located on the upper side in a planar view, and a second area formed to surround the first area and having a larger contact angle with the liquid than the first area.

[0007] In the above-mentioned analytical device member, the first area may include a radial portion provided radially from the receiving port side, and the radial portion may have a tapered shape with increasing distance from the receiving port side. Furthermore, in the above-mentioned analytical device component, the dropping portion may include a first sheet body that constitutes the first area, and a second sheet body that has a larger contact angle with the liquid than the first sheet body and constitutes the second area. Furthermore, in the above-mentioned analytical device member, the second sheet body may be laminated on the upper side of the first sheet body, and the second sheet body may be provided with a through portion that exposes the first area of ​​the first sheet body. In addition, in the above-mentioned analytical device component, the analytical device component is used in an analytical device that analyzes characteristics of a water-soluble liquid, and the first area may be hydrophilic and the second area may be hydrophobic. In the above-mentioned analytical device member, the first area and the second area may be configured so that a contact angle of liquid decreases toward the receiving port side. In the above analytical device member, the tubular member may be a glass tube. Effect of the Invention

[0008] Since the analytical device member of the present invention has the above-mentioned configuration, the tubular member can be easily assembled and the thickness can be reduced. [Brief description of the drawings]

[0009] [Figure 1]FIG. 2(a) is a schematic perspective view showing an example of an analytical device member in the first embodiment, and FIG. [Diagram 2] FIG. 2 is a block diagram illustrating an analysis device in which the analysis device member is used. [Diagram 3] FIG. 1A is an enlarged view of a main portion of the analytical device member, and FIG. 1B is a schematic diagram for explaining the contact angle of a liquid dropped at part X in FIG. [Figure 4] 1(a) to 1(e) are schematic plan views showing modified examples of the analyzer member of the first embodiment. [Diagram 5] FIG. 13(a) is a schematic perspective view of an analytical device member in a second embodiment, and FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an example of an analytical device member according to the present embodiment will be described with reference to the drawings. Note that in some drawings, some of the detailed reference numerals used in other drawings are omitted. 1 to 4 are diagrams showing an example and modified examples of an analytical device member according to the first embodiment, and an example of an analytical device in which the analytical device member is used.

[0011] 1 and 2, an analytical device member 10 of this embodiment is used in an analytical device 1 that analyzes the characteristics of a liquid passing through a flow path 2a of a tubular member 2. The analytical device member 10 has a substantially flat dripping portion 11 that moves dripped liquid toward the receiving port 2b of the tubular member 2. With this configuration, it is possible to make the analytical device member 10 thinner than a configuration in which a bottomed concave liquid reservoir portion or the like is provided. The dripping part 11 also includes a first area 12 formed to surround the receiving port 2b arranged on the upper side in a plan view, and a second area 15 formed to surround the first area 12 and having a larger contact angle with the liquid than the first area 12. With this configuration, the tubular member 2 only needs to be positioned in an appropriate position so that the receiving port 2b is located within the first area 12, and assembly is easier than a configuration in which the glass tube needs to be fitted into the storage space and the opening needs to be aligned to an appropriate position in the liquid reservoir. In addition, the liquid dripped onto the dripping part 11 can be moved toward the first area 12 side, which has a smaller contact angle, and toward the receiving port 2b of the tubular member 2, due to the shape consisting of the first area 12 and the second area 15 and the imbalance in surface tension caused by the difference in contact angle between them. In other words, the liquid dripped onto the dripping part 11 can be moved toward the receiving port 2b of the tubular member 2 autonomously, so to speak. This makes it possible to enlarge the area of ​​dripping part 11, i.e., the area where liquid can be dripped, and improves workability during measurement, compared to a configuration in which the dripping part has a small diameter so that the test liquid can be effectively introduced into the opening of the glass tube. It also makes it possible to prevent the liquid dripped into dripping part 11 from flowing toward second area 15 and leaking out of dripping part 11. The details are explained below.

[0012] As shown in FIG. 2, the analysis device 1 is configured to analyze the liquid flowing in the flow path 2a of the tubular member 2 based on the moving distance and moving time, and calculate the viscosity of the liquid. The analysis device 1 includes a sensor unit 5. The sensor unit 5 includes a plurality of optical sensors 5b. The optical sensors 5b include a light-emitting element that emits light and a light-receiving element that receives the light. The optical sensors 5b are attached to the substrate 5a at intervals along the longitudinal direction of the tubular member 2, and detect the arrival of the liquid by the change in the intensity of the light received by the light-receiving element, irradiating light from the light-emitting element toward the flow path 2a. In the illustrated example, the sensor unit 5 is disposed on the upper side of the tubular member 2. The sensor unit 5 may be configured to include one or more image sensors instead of the plurality of optical sensors 5b.

[0013] The analysis device 1 includes a terminal device 6 including a computer or the like. The terminal device 6 includes a circuit section 7. The circuit section 7 includes a transmission / reception circuit, an amplifier circuit, a drive circuit, and the like for transmitting the signal detected by the optical sensor 5b to the calculation section 8. The circuit section 7 serves as a functional section for amplifying the analog signal output from the optical sensor 5b, converting it into a digital signal, and transmitting the digital signal to the calculation section 8. The calculation section 8 includes a computer in which software for analyzing the characteristics of the liquid, such as the flow rate and viscosity, is installed based on the information transmitted from the circuit section 7. The calculation section 8 includes hardware such as a CPU, ROM, and RAM for calculating the characteristics of the liquid, such as the flow rate and viscosity, and stores and is executable a program for calculating the flow rate and viscosity of the liquid. The display section 9 includes a liquid crystal display or the like for displaying the calculation results in the calculation section 8 and the driving state of the sensor section 5. The terminal device 6 is not limited to being configured by one piece of hardware, and may be configured by multiple pieces of hardware. For example, the terminal device 6 may have the circuit unit 7, the calculation unit 8, and the display unit 9 each configured as separate hardware.

[0014] The tubular member 2 is made of a transparent material having optical transparency, and is formed in a hollow, elongated shape having a flow path 2a with a small cross-sectional area (inner diameter) that generates a capillary phenomenon. The tubular member 2 may be a glass tube. If the tubular member 2 is a glass tube, the light irradiated toward the flow path 2a is more easily transmitted than in a tubular member 2 made of a transparent resin material, and it is possible to suppress the attenuation and scattering of light. This is suitable when the sensor unit 5 of the analysis device 1 is an optical sensor 5b. Furthermore, if the tubular member 2 is a glass tube, it is easier to manufacture a flow path 2a with a small cross-sectional area (inner diameter). An opening on one side of the flow path 2a in the longitudinal direction of the tubular member 2 constitutes the receiving port 2b. The tubular member 2 is configured so that the liquid that is dropped into the dropping portion 11 and comes into contact with the receiving port 2b can be introduced into the flow path 2a by the capillary phenomenon. Moreover, an elastic tube 3 may be detachably connected to the other end of the longitudinal direction of the tubular member 2. The tube 3 may be provided with a valve device or the like for opening and closing the flow path of the tube 3 .

[0015] The analysis device 1 may include a base member 4 on which the analysis device member 10 and the tubular member 2 are placed. The base member 4 may be a long rectangular plate. In the illustrated example, the base member 4 has a dam portion 4b protruding in the thickness direction from three sides of the peripheral portion of one plate surface 4a. The tubular member 2 may be fixed to the base member 4 by a fixing member such as an adhesive or a sticky material. The base member 4 may also be provided with a mark or the like that serves as a guide for positioning the tubular member 2. The base member 4 may also be configured so that the sensor unit 5 is disposed on its lower side. In this case, the base member 4 may have an opening that penetrates in the thickness direction along the longitudinal direction of the tubular member 2 so that light from the optical sensor 5b can pass through, or the base member 4 itself may be made of a transparent material. The base member 4 may also be made of a sheet body that does not have the dam portion 4b. The analysis device 1 may also be configured without the base member 4. In this case, a base member on which the tubular member 2 is placed may be configured in an analyzer member 10 described below.

[0016] The analytical device member 10 is a member for introducing the liquid dropped on the dropping portion 11 to the receiving port 2b of the tubular member 2 arranged on the upper side. As shown in FIG. 3(b), the contact angle of the liquid (droplet) dropped on the dropping portion 11 so as to straddle the first area 12 and the second area 15 is a relatively small contact angle θ1 at the portion in contact with the first area 12, and a contact angle θ2 larger than the contact angle θ1 at the portion in contact with the second area 15. Therefore, in the liquid dropped on the dropping portion 11 so as to straddle the first area 12 and the second area 15, an imbalance in the contact angle occurs between the portion in contact with the first area 12 and the portion in contact with the second area 15. As a result, a force acts on the liquid to move it toward the first area 12 side, which has a smaller contact angle, and the liquid can be moved autonomously toward the first area 12 side. The contact angle θ1 with the liquid in the first area 12 is preferably 45 degrees or less, and the contact angle θ2 with the liquid in the second area 15 is preferably 100 degrees or more. The contact angles with the liquid in the first area 12 and the second area 15 can be measured in accordance with the wettability test method for substrate glass surfaces specified in JIS R 3257:1999.

[0017] The analytical device member 10 may be used in an analytical device 1 that analyzes the characteristics of a water-soluble liquid. In this case, the first area 12 may be hydrophilic, and the second area 15 may be hydrophobic. If the first area 12 is hydrophilic, the liquid on the first area 12 will spread easily on the first area 12. If the second area is hydrophobic, the liquid on the second area 15 will not spread easily on the second area 15. This makes it easier for the water-soluble liquid to move from the second area 15 to the first area 12. Also, the water-soluble liquid will spread easily on the first area 12, making it easier for the liquid to reach the receiving port 2b.

[0018] The analytical device member 10 is in a sheet shape. With such a configuration, it is possible to make the device thinner. In the illustrated example, the analytical device member 10 is in a rectangular shape in a plan view. The analytical device member 10 may have any shape or size so that the first area 12 can surround the receiving port 2b arranged above the dripping portion 11 in a plan view. The dripping portion 11 may be configured so that the liquid dripped only in the first area 12 comes into contact with the receiving port 2b. In this case, the liquid (droplets) dripped only in the first area 12 may be configured to come into contact with the receiving port 2b as it spreads. When the liquid is not dripped only in the first area 12, the dripping portion 11 may be configured to straddle the first area 12 and the second area 15. With such a configuration, when the liquid dripped on the dripping portion 11 is dripped only in the first area 12, it comes into contact with the receiving port 2b and is introduced into the flow path 2a by the capillary phenomenon of the tubular member 2. On the other hand, if liquid is dripped across the first area 12 and the second area 15, it will move from the second area 15 side to the first area 12 side as described above, and then come into contact with the receiving port 2b and be introduced into the flow path 2a by the capillary action of the tubular member 2.

[0019] The dripping portion 11 may be formed, for example, in a substantially semicircular shape, as shown by the two-dot chain line in FIG. 3(a). The analytical device member 10 may be provided with a marking portion for the dropping portion 11 that serves as a guide for the position for dropping the liquid. The marking portion for the dropping portion 11 may, for example, indicate the range of the dropping portion 11 with a line or the like, or may be a color of the dropping portion 11 that is different from the surrounding area. Also, an appropriate marking portion may be provided as a guide for the position of the receiving port 2b (tubular member 2) so that the receiving port 2b of the tubular member 2 is at an appropriate position within the first range 12. Furthermore, the dropping portion 11 being substantially flat includes a configuration having irregularities or steps of about 1 mm or less. For example, when the dropping portion 11 is formed by stacking sheets, it also includes a configuration in which there is a step between the first area 12 and the second area 15 of about the thickness of the sheet (for example, 0.05 mm to 1 mm).

[0020] The first area 12 and the second area 15 may be configured by performing a surface treatment on the same surface so that the contact angles with liquid are different. The first area 12 and the second area 15 may be configured from materials having different contact angles with liquid. For example, the sheet body constituting the first area 12 may be configured so that the sheet body constituting the second area 15 is fitted into a hole provided in the sheet body, the hole having a shape that matches the hole. In this embodiment, the first area 12 includes radial portions 14 that are provided radially from the base 13 on the receiving port 2b side. With this configuration, the second area 15 is provided between adjacent radial portions 14, so that liquid can be easily dripped across the first area 12 of the radial portions 14 and the second area 15 between them. In addition, the radial portions 14 are formed in a tapered shape as they move away from the base 13 side. This causes the width of the first area 12, which has a small contact angle, to increase toward the base 13 side, making it possible for the dripped liquid that comes into contact with the first area 12 to move smoothly toward the base 13 side (the receiving port 2b side).

[0021] In the following explanation, the tubular member 2 is arranged on the upper side of the analytical device member 10, and the direction along the longitudinal direction of the tubular member 2 is defined as the first direction, and the direction perpendicular to the first direction and the thickness direction of the analytical device member 10 is defined as the second direction. The first region 12 has a plurality of radial portions 14 branching out from the base 13. The plurality of radial portions 14 are provided so as to extend radially outward from a portion of the base 13 roughly corresponding to a portion where the receiving port 2b is provided, and are provided at roughly equal intervals from each other in the circumferential direction. The radial portions 14 are formed so that their respective tips are close to or in contact with the outer circumferential edge of the dripping portion 11. The first region 12 is formed in line symmetry with a line extending in the first direction passing through the center in the second direction as the axis of symmetry.

[0022] In the example of FIG. 3(a), the first region 12 includes seven radial portions 14. The first region 12 includes a first radial portion 14A extending in the first direction at the center in the second direction. The first region 12 includes, among the radial portions 14 other than the first radial portion 14A, four radial portions 14B (hereinafter referred to as second radial portions 14B) on the first radial portion 14A side, and two radial portions 14C (hereinafter referred to as third radial portions 14C) that are furthest from the first radial portion 14A. The second radial portions 14B are formed to extend at an angle with respect to the first direction. The third radial portions 14C are formed to extend along the second direction. The portions between the adjacent radial portions 14 in the second region 15 are tapered toward the base portion 13. As a result, the width of second area 15, which has a larger contact angle with the liquid, becomes smaller toward base 13, making it easier for the liquid to move toward first area 12.

[0023] Next, modified examples of the dripping unit will be described with reference to Fig. 4(a) to (e). In each of the following modified examples, differences from the previously described example will be mainly described, and descriptions of configurations and effects common to the previously described example will be omitted. FIG. 4(a) shows a dripping portion 11A according to a first modified example. As indicated by the two-dot chain line, this dripping portion 11A has a circular shape in plan view. This dripping portion 11A has a first range 12A different from the dripping portion 11 described above. In the first range 12A, the angle between adjacent radial portions 14 is larger than in the above example. In addition, the two third radial portions 14C that are furthest from the first radial portion 14A are inclined in a direction away from the first radial portion 14A as they move outward in the second direction. This makes the range of the dripping portion 11A larger than that of the dripping portion 11 in FIG. 3(a), and the range over which liquid can be dripped can be increased.

[0024] Fig. 4(b) shows a dripping part 11B according to the second modified example. In the part of the dripping part 11B on the base 13 side of the radial parts 14 of the first range 12B, the angle between adjacent radial parts 14 is larger than that of the dripping part 11 in the example of Fig. 3(a), similar to the first modified example. In this modified example, at least one of the radial portions 14 is bent in the middle. With this configuration, the ratio of the first range 12B in the dripping portion 11B can be effectively increased. In the illustrated example, the second radial portion 14B and the third radial portion 14C provided on both sides of the first radial portion 14A are bent in the middle. In addition, the second radial portions 14B adjacent to both sides of the first radial portion 14A are bent in the middle so that their respective tips face the tip of the first radial portion 14A. In addition, the second radial portions 14B and the third radial portions 14C adjacent to the second radial portions 14B on both sides of the first radial portion 14A are bent in the middle so that their respective tips face the bent portion of the adjacent radial portion.

[0025] 4(c) shows a dripping portion 11C according to a third modified example. The portion of the first region 12C of this dripping portion 11C on the base portion 13 side of the radial portions 14 is the same as that of the first modified example. In this modification, at least one of the radial portions 14 is branched in the middle. With this configuration, the ratio of the first region 12C in the dripping portion 11C can be effectively increased. In the illustrated example, the first radial portion 14A is formed by branching in two in the middle. Also in this modification, at least one of the radial portions 14 is bent in the middle. In the illustrated example, the four second radial portions 14B on both sides of the first radial portion 14A are bent in the middle. In the illustrated example, the forward portion of the bent portion of these four second radial portions 14B is inclined in a direction facing a different side from the first radial portion 14A so as to be the opposite side from the second modification described above. The third radial portion 14C is formed in substantially the same manner as the third radial portion 14C of the dripping portion 11A in the first modification.

[0026] FIG. 4(d) shows a dripping part 11D according to a fourth modified example. The first region 12D of this dripping part 11D is formed such that the angle between the first radial part 14A and the base part 13 side parts of the second radial parts 14B adjacent to both sides of the first radial part 14A is smaller than that of each of the modified examples described above. In this modified example, the four second radial parts 14B including these are bent at their respective midpoints and are formed to extend from the respective bent parts in approximately the first direction. In addition, the two third radial parts 14C are formed such that the tip side parts including the bent parts are aligned along the outer periphery of the dripping part 11D.

[0027] As shown in the above examples, the radial portions 14 in the first region 12, 12A to 12D may have various shapes. The number of radial portions 14 provided in the first region 12 is not limited to seven. The radial portions 14 may be formed in a curved shape. The first radial portion 14A may be formed by bending, and the second radial portion 14B and the third radial portion 14C may be formed by branching. The first region 12 may be asymmetric with respect to a line extending in the first direction passing through the center in the second direction, and may be swastika-shaped, etc.

[0028] FIG. 4(e) shows a dripping portion 11E according to a fifth modified example. In this modification, the first area 12E and the second area 15A of the dripping part 11E are configured so that the contact angle with the liquid decreases toward the receiving port 2b side. This allows the liquid to move more smoothly from the second area 15A to the first area 12E on the receiving port 2b side and from the first area 12E to the receiving port 2b side. In FIG. 4(e), the first area 12E is indicated by dotted (matte) hatching. First area 12E and second area 15A may be formed so that the contact angle with the liquid in dripping part 11E is smallest at the portion where receiving port 2b is disposed above.

[0029] The first area 12E and the second area 15A may be formed so that the contact angle with the liquid gradually changes so as to become smaller toward the receiving port 2b. In this case, the contact angle with the liquid in the first area 12E and the second area 15A may be gradually changed by making the surface treatment of the member different for each stage, or by providing a material with a different contact angle with the liquid for each stage. Alternatively, the first area 12E and the second area 15A may be formed so that the contact angle with the liquid gradually changes so as to become smaller toward the receiving port 2b. In this case, the contact angle with the liquid in the first area 12E and the second area 15A may be continuously changed by continuously changing the application amount or application pattern of the hydrophilic treatment agent contained in the ink using a printing device such as an inkjet printer, for example.

[0030] Next, an analyzer member according to a second embodiment will be described with reference to Fig. 5. Note that a description of the configuration and effects of parts common to the first embodiment will be omitted. In this embodiment, the dropping part 11F of the analytical device member 10A includes a first sheet body 16 constituting the first region 12F, and a second sheet body 17 constituting the second region 15B, which has a larger contact angle with the liquid than the first sheet body 16. As a result, the first region 12F and the second region 15B are respectively constituted by different sheet bodies, so that the first region 12F and the second region 15B can be constituted by sheet bodies with different contact angles. The first sheet body 16 may be a sheet body made of paper or resin that has barrier properties such as water resistance, oil resistance, and chemical resistance, and is surface-treated so that the contact angle with the liquid is smaller than that of the second sheet body 17 constituting the second region 15B. If the first sheet body 16 is configured to have barrier properties, it is possible to prevent the liquid from seeping into the first sheet body 16 and contaminating the lower side of the first sheet body 16. Furthermore, the material of the second sheet 17 is not particularly limited as long as it has a larger contact angle with the liquid than the surface of the first sheet 16 that constitutes the first area 12F. Furthermore, the first sheet 16 and the second sheet 17 may be laminated by pressure bonding, adhesive, or the like.

[0031] As shown in FIG. 5(a)(b), the second sheet body 17 is laminated on the upper side of the first sheet body 16, and the second sheet body 17 is provided with a through-hole 18 that exposes the first area 12F of the first sheet body 16. As a result, the first area 12F is provided on the bottom side of the through-hole 18, and the liquid dropped across the first area 12F and the second area 15B can be moved more smoothly toward the first area 12F side. Also, the dripping portion 11F can be formed by laminating the second sheet body 17 on the first sheet body 16, and the manufacturing of the analytical device member 10A can be facilitated. As shown in FIG. 5(a)(b), the shape of the through-hole 18 provided in the second sheet body 17 becomes the shape of the first area 12. In this embodiment, the shape of the through portion 18 in a plan view is the same as the shape of the first region 12 of the dripping portion 11 in the example of Fig. 3(a) described above, and the first sheet body 16 and the second sheet body 17 are laminated to form the base portion 13 and the radial portions 14 in the first region 12F. The first sheet body 16 may be large enough to cover at least the through portion 18 of the second sheet body 17 laminated above it, or may be the same size as the second sheet body 17.

[0032] In this embodiment, an example is shown in which the second sheet body 17 constituting the second area 15B is laminated above the first sheet body 16 constituting the first area 12F, but the first sheet body 16 constituting the first area 12F may be laminated above the second sheet body 17 constituting the second area 15B. In this case, the first sheet body 16 having the shape of the first area 12F itself may be laminated above the second sheet body 17. In this case, it is preferable that both the first sheet body 16 and the second sheet body 17 have barrier properties such as water resistance, oil resistance, and chemical resistance. The analytical device members 10 and 10A may be appropriately combined or rearranged from the above-mentioned embodiments, and are not limited to the above-mentioned configurations. For example, the first area 12 may be hydrophobic as long as the contact angle with the liquid is smaller than that of the second area 15. Even if the first area 12 is hydrophobic, the liquid can be moved autonomously from the second area 15 side to the first area 12 side due to the difference in the contact angle with the liquid. In short, the shapes and contact angles of the first area 12 and the second area 15 may be such that the liquid to be analyzed can move autonomously. Also, if the analytical device members 10 and 10A are arranged on the plate surface 4a of the base member 4, they may be formed to a size that covers substantially the entire surface of the plate surface 4a. Also, the analytical device members 10 and 10A may be formed to a size that allows the entire tubular member 2 to be arranged thereon. [Explanation of symbols]

[0033] 1 Analyzer 2 Tubular member 2a Flow path 2b Inlet 10,10A Analytical equipment parts 11,11A~11F Dripping part 12, 12A~12F 1st range 14,14A~14C Radial part 15, 15A, 15B 2nd range 16 First sheet body 17 Second sheet body 18 Penetration

Claims

1. A component for an analytical device used in an analytical device for analyzing characteristics of a liquid passing through a flow path of a tubular member, comprising: A component for an analytical device comprising a substantially flat dripping section that moves dripped liquid toward a receiving port of the tubular member, the dripping section comprising: a first area formed to surround the receiving port located on the upper side in a plan view; and a second area formed to surround the first area and having a larger contact angle with the liquid than the first area.

2. In claim 1, The first area includes a radial portion extending radially from the receiving port side, the radial portion tapering away from the receiving port side.

3. In claim 1, A component for an analytical device, characterized in that the dripping portion comprises a first sheet body that constitutes the first area, and a second sheet body that has a larger contact angle with the liquid than the first sheet body and constitutes the second area.

4. In claim 3, A component for an analytical device, characterized in that the second sheet body is stacked on the upper side of the first sheet body, and the second sheet body has a through portion that exposes the first area of ​​the first sheet body.

5. In claim 1, A component for an analytical device used in an analytical device that analyzes the characteristics of a water-soluble liquid, 13. The component for an analytical device, wherein the first region has hydrophilic properties and the second region has hydrophobic properties.

6. In claim 1, 13. The member for an analyzer, wherein the first area and the second area are configured such that a contact angle of liquid decreases toward the receiving port side.

7. In any one of claims 1 to 6, The analytical device member, wherein the tubular member is a glass tube.

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