Solid sample preparation table for organic element analysis

Abstract

The utility model relates to the technical field of organic element analysis and testing, in particular to a solid sample preparation platform for organic element analysis. The sample preparation table provided by the utility model comprises a sample loading table and a sample wrapping piece which are movably connected, and a sample pressing rod which is independently arranged, the sample loading table is arranged on the upper surface of the external platform, and a groove is formed in the sample loading table; the sample packaging piece is allowed to rotate or slide along the sample loading table; a plurality of through holes for realizing sample wrapping of solid samples are formed in the sample wrapping piece, and the sample pressing rod is matched with the through holes; when a solid sample needs to be wrapped, the sample loading table is used as the bottom surface of the through hole; when a solid sample needs to be sampled, a sample unloading groove formed in the sample loading table or an external platform serves as a bottom surface of the through hole. The sample preparation table disclosed by the utility model is simple in structure and free of quick-wear parts, and the conditions of sample clamping and the like cannot occur in the operation process; and during cleaning, only cotton swabs or tissues are needed for wiping, and parts do not need to be disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of organic element analysis and testing, in particular to a sample preparation platform for organic element analysis solid samples. Background Art

[0002] Organic elemental analysis (C, H, N, O, S) is a crucial technique for characterizing sample composition and purity, widely used in fields such as chemical and pharmaceutical products, food and agricultural products, the environment, materials, petroleum and energy, and geology. Elemental analysis not only reveals the composition and content of organic elements, but also allows for the inference of molecular formulas and calculations of grafting and doping, playing a crucial role in determining the structure of substances and measuring their properties. Organic elemental analysis testing requires precise sample weighing and proper preparation. Efficient and rapid sample preparation is a key factor influencing measurement.

[0003] The sample preparation process of solid samples for organic element analysis includes sample addition, sample pressing, and sampling. Traditional sample preparation is mainly completed by manual operation with the help of tools such as tweezers (such as Figure 1 (as shown): Add the sample to the tin cup on the sample preparation board and accurately weigh the sample (adding the sample); completely enclose the sample in the tin cup by squeezing out air, folding the cup multiple times, and compacting it (sampling); then remove the sample and store it on a sample tray (sampling). Commonly used tin cups are small (3-6mm in diameter, 4-12mm in height). Using tools like tweezers to squeeze and fold the cup often results in damage and sample leakage due to ineffective hand coordination and the sharp tips of the tweezers rubbing against the foil. Sample preparation is also inefficient, often requiring several minutes or even more than ten minutes to prepare a single sample.

[0004] At present, the devices provided by the existing technologies CN109668773A and CN104236989A mainly improve the speed and efficiency of sample pressing by pressing the handle or the pressure rod. However, after the sample is pressed, it is not convenient to remove the sample with the devices provided by CN109668773A and CN104236989A. The sample needs to be pushed out by disassembling the sample trough and then reinstalled. Elemental analysis is mostly done in large quantities. Repeated disassembly and reassembly of accessories greatly increases the operation time. At the same time, the device is equipped with vulnerable parts such as springs, which have a certain service life. After a large number of samples are used, they are prone to aging, causing problems such as sample jamming. In addition, for different types of samples, the sample preparation tools and utensils need to be thoroughly cleaned before each sample preparation. These two sample packaging devices require the disassembly of accessories, which increases the difficulty of cleaning.

[0005] CN202508338U discloses a multi-combination sample packaging auxiliary tool, including a template formed by a movably connected lid and a base plate, the template lid is provided with circular and rectangular through holes of different specifications for positioning the tin cup; and tweezers, spoons and shovels that can realize the loading of solid samples, compaction and pushing out of the tin cup. When the tool provided by CN202508338U presses the sample, the sample and the through-hole wall are in close contact after being compacted in the through-hole, and sampling requires applying a certain force to push the sample out. The method provided is to push the sample out by raising the lid, but the force point of this pushing method is not easy to control, and the device may be displaced during the pushing process. At the same time, the sample may roll and fall off the base plate during the pushing process. The whole process is not easy to operate.

[0006] Therefore, it is crucial to provide a solid sample preparation platform for organic element analysis that can solve the above-mentioned technical problems. Utility Model Content

[0007] In order to solve the above problems, the purpose of the present invention is to provide a sample preparation table for solid samples of organic element analysis. The sample preparation table provided by the present invention includes a sample loading table and a sample wrapping piece that are movably connected, and an independently arranged sample pressing rod; the sample loading table is placed on the upper surface of the external platform, and a groove is provided on the sample loading table; the rotary sample wrapper allows rotation or sliding along the sample loading table; the sample wrapping piece is provided with a number of through holes for wrapping solid samples, wherein the sample pressing rod is adapted to the through holes; when it is necessary to wrap the solid sample, the through hole uses the sample loading table as the bottom surface; when it is necessary to sample the solid sample, the through hole uses the sample unloading groove or the external platform provided on the sample loading table as the bottom surface. The sample preparation table of the present invention has a simple structure, no vulnerable parts, and will not cause sample jamming during operation; there are no structural hidden seams, and cleaning only requires wiping with a cotton swab or paper towel without the need to disassemble parts.

[0008] The purpose of the utility model can be achieved through the following technical solutions:

[0009] The utility model provides a sample preparation platform for organic element analysis solid samples, which is arranged on the upper surface of an external platform when in use, and includes a sample loading platform and a sample packing member that are movably connected, and an independently arranged sample pressing rod;

[0010] The sample loading platform is placed on the upper surface of the external platform, and a groove is provided on the sample loading platform; the sample package is allowed to rotate or slide along the sample loading platform;

[0011] The sample packing piece is provided with a plurality of through holes for packing solid samples, wherein the sample pressing rod is adapted to the through holes;

[0012] When a solid sample needs to be packaged, the through hole uses the sample loading platform as the bottom surface;

[0013] When solid samples need to be sampled, the through hole uses the sample loading platform or the external platform as the bottom surface.

[0014] In one embodiment of the present invention, the sample loading platform is provided with a sample unloading groove, forming a first horizontal surface and a first groove surface.

[0015] The sample package includes a rod connected to the sample loading platform and a support portion provided at the end of the rod for supporting the rod. The rod is provided with a plurality of through holes spaced apart along the length direction of the rod.

[0016] The end of the rod away from the supporting portion is movably connected to the sample loading platform, allowing rotation along the sample loading platform;

[0017] When used for packaging solid samples, the bottom surface of the through hole is a first horizontal surface; when used for sampling solid samples, the bottom surface of the through hole is a first groove surface.

[0018] In one embodiment of the present invention, a guide groove is provided at the center of the sample loading platform, and the rod is movably connected to the sample loading platform through the guide groove.

[0019] In one embodiment of the present invention, a positioning shaft is provided in the guide groove, and the positioning shaft is allowed to rotate along the guide groove;

[0020] The sample package is provided with a positioning hole matched with the positioning shaft.

[0021] In one embodiment of the present invention, the upper outer surface of the positioning shaft is provided with an external thread, and the inner surface of the positioning hole is provided with an internal thread matching the external thread.

[0022] In one embodiment of the present invention, the sample loading platform is provided with a sample packing groove adapted to the sample packing piece, forming a second horizontal surface and a second groove surface.

[0023] The sample wrapping piece includes a rod portion adapted to the sample wrapping groove, and a support portion provided at the end of the rod portion for supporting the rod portion, wherein the rod portion is provided with a plurality of through holes spaced apart along the length direction of the rod portion;

[0024] The rod is allowed to move along the length direction of the sample packaging groove;

[0025] When used for packaging solid samples, the bottom surface of the through hole is the second groove surface; when used for sampling solid samples, the bottom surface of the through hole is the upper surface of the external platform.

[0026] In one embodiment of the present invention, the width of the sample-wrapping groove is greater than the width of the rod.

[0027] In one embodiment of the present invention, the sizes of the through holes may be the same or different.

[0028] In one embodiment of the present invention, the sample loading table is provided with a clamping plate for knocking off excess solid sample from the tin cup;

[0029] The clamping plate is embedded in the upper surface of the sample loading platform.

[0030] A method for using a solid sample preparation table for organic element analysis comprises the following steps:

[0031] (A1) Place the sample package on the upper surface of the first horizontal surface of the sample loading platform, and then place the tin cup containing the solid sample into the corresponding through hole;

[0032] (A2) After step (A1), the tin cup in the through hole is encapsulated with a sample pressing rod so that the solid sample is completely encapsulated in the tin cup;

[0033] (A3) After step (A2), adjust the sample packing member to be directly above the first groove surface of the sample loading platform, and then use the sample pressing rod to push the packed sample into the sample unloading groove;

[0034] A method for using a solid sample preparation table for organic element analysis comprises the following steps:

[0035] (B1) Place the sample package on the upper surface of the second groove surface of the sample loading platform, and then place the tin cup containing the solid sample into the corresponding through hole;

[0036] (B2) After step (B1), the tin cup in the through hole is encapsulated with a sample pressing rod so that the solid sample is completely encapsulated in the tin cup;

[0037] (B3) After step (B2) is completed, adjust the sample package to move toward the side away from the sample loading platform, so that the through hole containing the sample is placed directly above the external platform, and then use the sample pressing rod to push the packaged sample to the upper surface of the external platform.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The organic element solid sample preparation table of the utility model can realize the integrated and convenient operation of adding, pressing and sampling of trace element analysis samples. The device has a simple and compact structure, is easy to operate, and has no vulnerable parts. There will be no sample jamming during operation, and the sample jamming rate is 0. There are no structural hidden seams, and only cotton swabs or paper towels are needed for cleaning. It provides an effective tool for the standardized preparation of samples and can be widely used in scientific research, environmental monitoring, food safety, drug development, address surveys and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 Schematic diagram of the traditional sample preparation process for solid samples for organic element analysis;

[0041] Figure 2 Schematic diagram (1) of the structure of a sample preparation platform (excluding the sample pressing rod) for organic element analysis in Example 1;

[0042] Figure 3 This is a structural schematic diagram (II) of a sample preparation platform for organic element analysis solid samples (excluding the sample pressing rod) of Example 1;

[0043] Figure 4 This is a schematic structural diagram of a sample pressing rod in a sample preparation platform for organic element analysis solid samples in Example 1;

[0044] Figure 5 This is a schematic structural diagram of a sample preparation station for organic element analysis solid samples according to Example 2;

[0045] Figure 6 This is a schematic structural diagram of a sample package in a sample preparation station for organic element analysis solid samples in Example 2;

[0046] Numbers in the figure: 1. Sample loading table; 2. Sample unloading slot; 3. Rod; 4. Support part; 5. Through hole; 6. Positioning shaft; 7. Sample pressing rod; 8. Sample packing slot; 9. Clamping plate. DETAILED DESCRIPTION

[0047] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0049] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0050] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0051] Example 1

[0052] This embodiment provides a solid sample preparation platform for organic element analysis, which is set on the upper surface of the external platform when in use. Figures 2-4 As shown, it includes a movably connected sample loading platform 1 and a sample packaging piece, and an independently arranged sample pressing rod 7 (used to compact the sample, drive out the air, and make the sample completely wrapped in the tin cup); the sample loading platform 1 is placed on the upper surface of the external platform, and a groove is provided on the sample loading platform 1; the sample packaging piece is allowed to rotate or slide along the sample loading platform 1; the sample packaging piece is provided with a plurality of through holes 5 for packaging solid samples, and the sample pressing rod 7 is adapted to the through holes 5.

[0053] Furthermore, the sample loading platform 1 is provided with a sample unloading groove 2, forming a first horizontal surface and a first groove surface. The sample package includes a rod portion 3 connected to the sample loading platform 1 (the bottom surface of the rod portion 3 is horizontal and can be in contact with the upper surface of the sample loading platform 1), and a support portion 4 provided at the end of the rod portion 3 for supporting the rod portion 3. The rod portion 3 is provided with a plurality of through holes 5 spaced along the length of the rod portion 3. The end of the rod portion 3 away from the support portion 4 is movably connected to the sample loading platform 1, allowing it to rotate along the sample loading platform 1 (it can rotate in different directions to suit users with different operating habits).

[0054] When used for packaging solid samples, the bottom surface of the through hole 5 is a first horizontal surface; when used for sampling solid samples, the bottom surface of the through hole 5 is a first groove surface.

[0055] Furthermore, a guide groove is provided at the center position of the sample loading platform 1, and the rod 3 is movably connected to the sample loading platform 1 through the guide groove; a positioning shaft 6 is provided in the guide groove, and the positioning shaft 6 is allowed to rotate along the guide groove; a positioning hole is provided on the sample package to match the positioning shaft 6 (wherein, the upper outer surface of the positioning shaft 6 may be provided with an external thread or not; when the upper outer surface of the positioning shaft 6 may be provided with an external thread, the inner surface of the positioning hole is provided with an internal thread matching the external thread).

[0056] Furthermore, the sizes of the through holes 5 are allowed to be the same or different. The sample loading platform 1 is provided with a clamping plate 9 which is embedded in the upper surface of the sample loading platform 1 and is used to knock off excess solid samples on the surface of the tin cup.

[0057] When used, the specific steps include:

[0058] (A1) Use the external sample spoon to add an appropriate amount of sample into the tin cup;

[0059] (A2) Place the rod 3 on the upper surface of the first horizontal surface of the sample loading platform 1, then place the tin cup containing the solid sample into the through hole 5 of the corresponding size, and then clamp the upper end of the tin cup with tweezers;

[0060] (A3) After step (A2), the tin cup in the through hole 5 is encapsulated by the sample pressing rod 7 so that the solid sample is completely encapsulated in the tin cup;

[0061] (A4) After step (A3) is completed, the sample pack is adjusted and placed directly above the first groove surface of the sample loading platform 1 , and then the sample pressing rod 7 is used to push the packed sample into the sample unloading tank 2 .

[0062] Example 2

[0063] This embodiment provides a solid sample preparation platform for organic element analysis, which is set on the upper surface of the external platform when in use. Figures 5-6 As shown, it includes a movably connected sample loading platform 1 and a sample packaging piece, and an independently arranged sample pressing rod 7 (used to compact the sample, drive out the air, and make the sample completely wrapped in the tin cup); the sample loading platform 1 is placed on the upper surface of the external platform, and a groove is provided on the sample loading platform 1; the sample packaging piece is allowed to rotate or slide along the sample loading platform 1; the sample packaging piece is provided with a plurality of through holes 5 for packaging solid samples, and the sample pressing rod 7 is adapted to the through holes 5.

[0064] Furthermore, the sample loading platform 1 is provided with a sample packing groove 8 adapted to the sample packing member, forming a second horizontal surface and a second groove surface. The sample packing member includes a rod portion 3 adapted to the sample packing groove 8 (the bottom surface of the rod portion 3 is horizontal and can be fitted with the upper surface of the sample packing groove 8; when the rod portion 3 is inserted into the sample packing groove 8, it can form a whole with the sample loading platform 1, which is convenient for storage and carrying), and a support portion 4 provided at the end of the rod portion 3 for supporting the rod portion 3. The rod portion 3 is provided with a plurality of through holes 5 spaced apart along the length direction of the rod portion 3; the rod portion 3 is allowed to move along the length direction of the sample packing groove 8;

[0065] When used for packaging solid samples, the bottom surface of the through hole 5 is the second groove surface; when used for sampling solid samples, the bottom surface of the through hole 5 is the upper surface of the external platform.

[0066] Furthermore, the width of the sample packing groove 8 is greater than the width of the rod 3, and the size of the through hole 5 is allowed to be the same or different; the sample loading platform 1 is provided with a clamping plate 9 embedded in the upper surface of the sample loading platform 1 and used to knock excess solid samples on the surface of the tin cup.

[0067] When used, the specific steps include:

[0068] (B1) Use the external sample spoon to add an appropriate amount of sample into the tin cup;

[0069] (B2) placing the sample package on the upper surface of the second groove surface of the sample loading platform 1, and then placing the tin cup containing the solid sample into the corresponding through hole 5;

[0070] (B3) After step (B2), the tin cup in the through hole 5 is encapsulated by the sample pressing rod 7 so that the solid sample is completely encapsulated in the tin cup;

[0071] (B4) After step (B3) is completed, the sample package is adjusted to move toward the side away from the sample loading platform 1, and then the through hole 5 containing the sample is placed directly above the external platform, and then the sample pressing rod 7 is used to push the sample package to the upper surface of the external platform.

[0072] The above description of the embodiments is intended to facilitate understanding and use of the utility model by those skilled in the art. Those skilled in the art will readily be able to make various modifications to these embodiments and apply the general principles described herein to other embodiments without requiring inventive effort. Therefore, the utility model is not limited to the above-described embodiments. Improvements and modifications made by those skilled in the art based on the interpretation of this utility model and without departing from the scope of this utility model should be within the scope of protection of this utility model.

Claims

1. A solid sample preparation table for organic element analysis, which is arranged on the upper surface of an external platform when in use, and is characterized in that: It includes a sample loading platform (1) and a sample packing member that are movably connected, and an independently arranged sample pressing rod (7); The sample loading platform (1) is placed on the upper surface of the external platform, and a groove is provided on the sample loading platform (1); the sample package is allowed to rotate or slide along the sample loading platform (1); The sample packing piece is provided with a plurality of through holes (5) for packing solid samples, wherein the sample pressing rod (7) is adapted to the through holes (5); When a solid sample needs to be packaged, the through hole (5) uses the sample loading platform (1) as a bottom surface; When a solid sample needs to be sampled, the through hole (5) uses the sample loading platform (1) or the external platform as the bottom surface.

2. The solid sample preparation platform for organic element analysis according to claim 1, characterized in that: The sample loading platform (1) is provided with a sample unloading groove (2) to form a first horizontal surface and a first groove surface. The sample package comprises a rod portion (3) connected to the sample loading platform (1), and a support portion (4) provided at the end of the rod portion (3) for supporting the rod portion (3); the rod portion (3) is provided with a plurality of through holes (5) spaced apart along the length direction of the rod portion (3); The end of the rod (3) away from the support (4) is movably connected to the sample loading platform (1), allowing rotation along the sample loading platform (1); When used for packaging solid samples, the bottom surface of the through hole (5) is a first horizontal surface; when used for sampling solid samples, the bottom surface of the through hole (5) is a first groove surface.

3. The solid sample preparation platform for organic element analysis according to claim 2, characterized in that: A guide groove is provided at the center of the sample loading platform (1), and the rod portion (3) is movably connected to the sample loading platform (1) via the guide groove.

4. The solid sample preparation platform for organic element analysis according to claim 3, characterized in that: A positioning shaft (6) is provided in the guide groove, and the positioning shaft (6) is allowed to rotate along the guide groove; The sample package is provided with a positioning hole adapted to the positioning shaft (6).

5. The solid sample preparation platform for organic element analysis according to claim 4, characterized in that: The upper outer surface of the positioning shaft (6) is provided with an external thread, and the inner surface of the positioning hole is provided with an internal thread matching the external thread.

6. The solid sample preparation platform for organic element analysis according to claim 1, characterized in that: The sample loading platform (1) is provided with a sample packing groove (8) adapted to the sample packing piece, forming a second horizontal surface and a second groove surface. The sample wrapping member comprises a rod portion (3) adapted to the sample wrapping groove (8), and a support portion (4) provided at the end of the rod portion (3) for supporting the rod portion (3); the rod portion (3) is provided with a plurality of through holes (5) spaced apart along the length direction of the rod portion (3); The rod (3) is allowed to move along the length direction of the sample packaging groove (8); When used for packaging solid samples, the bottom surface of the through hole (5) is the second groove surface; when used for sampling solid samples, the bottom surface of the through hole (5) is the upper surface of the external platform.

7. The solid sample preparation platform for organic element analysis according to claim 6, characterized in that: The width of the sample-wrapping groove (8) is greater than the width of the rod (3).

8. The solid sample preparation platform for organic element analysis according to claim 1, characterized in that: The through holes (5) have the same size.

9. The solid sample preparation platform for organic element analysis according to claim 1, characterized in that: The through holes (5) have different sizes.

10. The solid sample preparation platform for organic element analysis according to claim 1, characterized in that: The sample loading platform (1) is provided with a clamping plate (9) for knocking off excess solid samples from the tin cup; The clamping plate (9) is embedded in the upper surface of the sample loading platform (1).

Images