Liquid chromatography mobile phase fluid infusion bottle

Abstract

The utility model discloses a mobile phase liquid supplementing bottle for liquid chromatography. The mobile phase liquid supplementing bottle comprises a bottle body, a bottle cap covering a bottle opening of the bottle body and a liquid supplementing pipe for supplementing liquid into an inner cavity of the bottle body, a drainage tube for discharging a mobile phase in the inner cavity of the bottle body is arranged on the bottle cap, and a filter head is mounted at a liquid inlet of the drainage tube; a liquid outlet of the liquid supplementing pipe is provided with a filter sheet, and the bottom of the filter sheet is in contact with the bottom of the inner cavity of the bottle body. According to the utility model, the liquid supplementing pipe is arranged, so that a mobile phase is poured without opening a cover, the generation of bubbles is avoided, the mobile phase in the liquid supplementing pipe is filtered by the filter and then discharged, and the filter filters small impurities and tiny bubbles in the mobile phase, so that the generation of bubbles is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental consumables, in particular to a liquid chromatography mobile phase rehydration bottle. Background Art

[0002] Liquid chromatographs are widely used in chemical analysis. The detection of organic matter in food, environment, cosmetics, medicines, biological samples and other substances often requires liquid chromatographs to show their prowess. During the operation of the liquid chromatograph, the mobile phase is often insufficient due to insufficient preparation of the mobile phase. Therefore, during the operation of the instrument, the mobile phase needs to be replenished in time, that is, the mobile phase needs to be replenished while the mobile phase is being transported.

[0003] In the prior art, the mobile phase is stored in a mobile phase bottle. Specifically, a drainage tube is provided on the bottle cap of the mobile phase bottle for discharging the mobile phase in the inner cavity of the mobile phase bottle. The liquid inlet of the drainage tube leads the mobile phase in the bottle to the liquid chromatograph outside the bottle through the filter head. During the rehydration process, the bottle cap is first opened, and then the mobile phase is directly poured into the bottle. Among them, during the opening process, the bottle cap may pull the drainage tube, thereby pulling the filter head out of the liquid surface. If the filter head is placed in the air, the drainage tube will inhale air through the filter head, thereby affecting the test results and damaging the chromatographic column. In the process of pouring the mobile phase into the bottle, bubbles are easily generated due to the lack of a drainage device. If bubbles enter the mobile phase system, it will affect the test results and damage the instrument.

[0004] In addition, when the mobile phase in the mobile phase bottle is a volatile and toxic liquid such as methanol or acetonitrile, if the bottle is replenished with mobile phase, the bottle cap of the mobile phase bottle needs to be opened frequently to pour the mobile phase directly into the bottle from the bottle mouth of the mobile phase bottle. At this time, the mobile phase in the bottle is easy to evaporate into the air, thereby causing liquid waste, polluting the environment, and damaging the health of the experimenters. Utility Model Content

[0005] The utility model aims to provide a liquid chromatography mobile phase replenishment bottle, which can be used to pour the mobile phase without opening the cover, effectively avoiding the generation of bubbles and reducing the volatilization of the mobile phase.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A liquid chromatography mobile phase rehydration bottle, comprising a bottle body and a bottle cap covering the bottle mouth of the bottle body, wherein the bottle cap is provided with a drainage tube for discharging the mobile phase in the inner cavity of the bottle body; a filter head is installed at the liquid inlet of the drainage tube;

[0008] It also includes a liquid infusion tube for infusing liquid into the inner cavity of the bottle body. A filter sheet is installed at the liquid outlet of the liquid infusion tube, and the bottom of the filter sheet is in contact with the bottom of the inner cavity of the bottle body.

[0009] By setting up a refill tube, the mobile phase does not need to be poured in without opening the cover, thus avoiding the generation of bubbles. The mobile phase in the refill tube is discharged after being filtered by the filter disc. The filter disc filters out small impurities and tiny bubbles in the mobile phase, effectively avoiding the generation of bubbles.

[0010] As a further solution of the utility model: a through hole is provided on the bottle cap for the infusion tube to pass through, and the infusion tube is installed in the through hole through an inner plug sleeve. With the above solution, the infusion tube is fixed to the bottle cap through the inner plug sleeve.

[0011] As a further solution of the utility model: the infusion tube is a hard tube.

[0012] As a further solution of the utility model: a sealing cover is installed on the liquid inlet of the liquid infusion tube. The above solution is used to seal the liquid inlet of the liquid infusion tube.

[0013] As a further solution of the utility model: the bottom of the inner cavity of the bottle body is provided with a fixing slot for inserting the filter disc. The above solution is adopted so as to fix the filter disc at the bottom of the inner cavity of the bottle body.

[0014] As a further solution of the utility model: the fixed card slot is surrounded by a plurality of raised blocks arranged at intervals. With the above solution, the gaps between the raised blocks allow the filter sheet to discharge the mobile phase in the infusion tube into the bottle.

[0015] As a further solution of the utility model: a metal piece is fixed at the lower end of the filter head, and the outer surface of the metal piece is covered with an isolation film; a magnetic block for adsorbing the metal piece is provided on the outside of the bottle body, and the magnetic block is fixed to the bottom of the bottle body by wrapping with a plastic pad. With the above solution, the filter head is prevented from leaving the upper surface of the mobile phase in the bottle through the cooperation between the magnetic block and the metal piece, thereby avoiding the generation of bubbles.

[0016] As a further solution of the utility model, a through hole is provided on the bottle cap for the drainage tube to pass through, and the drainage tube is installed in the through hole through an inner plug sleeve. With the above solution, the drainage tube is fixed to the bottle cap through the inner plug sleeve.

[0017] As a further solution of the utility model: the filter head and the filter sheet are both made of stainless steel. The above solution is adopted to filter out small impurities and tiny bubbles in the mobile phase.

[0018] As a further solution of the utility model: the outer surface of the bottle body is provided with scale lines. The above solution is adopted so as to accurately understand the volume of the mobile phase in the mobile phase bottle.

[0019] Beneficial effects of the utility model:

[0020] By setting up a liquid replenishment tube, it is not necessary to open the cover to pour in the mobile phase, thus avoiding the generation of bubbles. The mobile phase in the liquid replenishment tube is discharged after being filtered by the filter disc, and the filter disc filters out small impurities and tiny bubbles in the mobile phase, thus effectively avoiding the generation of bubbles.

[0021] The cooperation between the magnetic block and the metal part can prevent the filter head from leaving the upper surface of the mobile phase in the bottle, thereby avoiding the generation of bubbles;

[0022] Compared with directly replenishing the fluid through the bottle mouth, using a replenishment tube for replenishment can effectively reduce the volatilization of the mobile phase during replenishment, reduce the waste of mobile phase, reduce pollution to the environment, and protect the health of experimenters. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a cross-sectional view of the utility model;

[0026] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model.

[0027] The accompanying drawings are denoted as follows:

[0028] 1. Bottle body; 2. Bottle cap; 3. Drainage tube; 4. Filter head; 5. Fluid infusion tube; 6. Sealing cap; 7. Filter plate; 8. Metal parts; 9. Plastic pad; 10. Scale line; 11. Fixed card slot. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] A liquid chromatography mobile phase replenishment bottle, please refer to Figure 1 and Figure 2 As shown, it includes a bottle body 1, a bottle cap 2, a drainage tube 3 and a liquid infusion tube 5.

[0031] The bottle body 1 is made of a transparent material or a translucent material. The outer surface of the bottle body 1 is provided with scale lines 10. The experimenter can better understand the volume of the internal mobile phase in the inner cavity of the bottle body 1 through the scale lines 10. A plastic pad 9 is fixed to the bottom of the bottle body 1, and a magnetic block is wrapped inside the plastic pad 9, and the magnetic block is located at the bottom center of the bottle body 1. In addition, an anti-slip structure is provided at the bottom of the plastic pad 9 to prevent the bottle body 1 from accidentally slipping, thereby effectively protecting the bottle body 1.

[0032] The bottle cap 2 is covered at the bottle mouth of the bottle body 1, and the bottle cap 2 is detachably connected to the bottle body 1. The bottle cap 2 is provided with a drainage tube 3 for discharging the mobile phase in the inner cavity of the bottle body 1. Specifically, the bottle cap 2 is provided with a through hole for the drainage tube 3 to pass through. The drainage tube 3 is installed in the through hole through an inner plug sleeve. The inner plug sleeve is wrapped around the outer wall of the drainage tube 3 and installed at the upper part of the through hole.

[0033] Among them, the liquid inlet of the infusion tube 5 is placed in the inner cavity of the bottle body 1, and the liquid inlet is installed with a filter head 4 for filtering the mobile phase. A metal part 8 is fixed to the lower end of the filter head 4, and the metal part 8 is fixed to the bottom of the inner cavity of the bottle body 1 by magnetic adsorption of the magnetic block in the plastic pad 9. The outer surface of the metal part 8 is covered with an isolation film to prevent the metal part 8 from contaminating the mobile phase in the bottle. Through the cooperation of the metal part 8 and the magnetic block, the filter head 4 is effectively prevented from leaving the upper surface of the mobile phase in the bottle, and the filter head 4 is prevented from directly contacting the air, thereby avoiding the appearance of bubbles in the drainage tube 3. The liquid outlet of the infusion tube 5 is placed outside the bottle body 1 and connected to the liquid chromatograph. The mobile phase in the bottle passes through the filter head 4 and the drainage tube 3 in turn, and then is transported to the liquid chromatograph.

[0034] The infusion tube 5 is used to infuse fluid into the inner cavity of the bottle body 1. The material of the infusion tube 5 is a hard tube. In the present embodiment, the infusion tube 5 is a glass tube, which is vertically arranged on the bottle cap 2. Specifically, the infusion tube 5 and the drainage tube 3 are arranged at intervals. The bottle cap 2 is also provided with a through hole for the infusion tube 5 to pass through. The infusion tube 5 is installed in the through hole through an inner plug sleeve. The inner plug sleeve is wrapped around the outer wall of the infusion tube 5 and is installed on the upper part of the through hole. Compared with direct infusion through the bottle mouth, the use of the infusion tube 5 for infusion can effectively reduce the volatilization of the liquid, thereby reducing pollution to the environment, reducing the waste of liquid, and protecting the health of the experimenters.

[0035] Among them, the liquid inlet of the infusion tube 5 is placed on the outside of the bottle body 1, and a sealing cover 6 for sealing is installed on the liquid inlet. The sealing cover 6 is detachably connected to the infusion tube 5, and its connection method includes but is not limited to a threaded connection. The liquid outlet of the infusion tube 5 is placed in the inner cavity of the bottle body 1, and a filter plate 7 for filtering the mobile phase is installed on the liquid outlet. The bottom of the filter plate 7 is in contact with the bottom of the inner cavity of the bottle body 1 to prevent the filter plate 7 from filtering the upper surface of the mobile phase in the bottle. When there is too little mobile phase in the bottle body 1, there is no need to open the bottle cap 2 to pour the mobile phase, which effectively avoids the generation of bubbles; the liquid inlet of the infusion tube 5 is opened by the sealing cover 6, and then the mobile phase is injected into the bottle body 1 through the infusion tube 5, and the filter plate 7 effectively filters the mobile phase in the infusion tube 5, that is, filters out small impurities and tiny bubbles in the mobile phase, and prevents the generation of bubbles in the bottle body 1 during the infusion process.

[0036] In this embodiment, please refer to Figure 1 and Figure 3 As shown, the bottom of the inner cavity of the bottle body 1 is provided with a fixed card slot 11 for inserting the filter plate 7. The fixed card slot 11 is surrounded by a plurality of protruding blocks arranged at intervals. The lower part of the filter plate 7 is inserted into the fixed card slot 11, and the gaps between the protruding blocks allow the filter plate 7 to discharge the mobile phase in the infusion tube 5 into the bottle.

[0037] In this embodiment, the filter head 4 and the filter sheet 7 are made of the same material. Preferably, both are made of stainless steel. The pore size of the filter holes of both are 0.22 μm, which is used to filter out small impurities and tiny bubbles in the mobile phase.

[0038] The utility model provides a liquid infusion tube 5, and there is no need to open the cover to pour in the mobile phase, thereby avoiding the generation of bubbles. The mobile phase in the liquid infusion tube 5 is discharged after being filtered by the filter plate 7. The filter plate 7 filters out small impurities and tiny bubbles in the mobile phase, effectively avoiding the generation of bubbles. The cooperation between the magnetic block 9 and the metal part 8 can prevent the filter head 4 from leaving the upper surface of the mobile phase in the bottle, thereby avoiding the generation of bubbles. Compared with directly infusing the liquid through the bottle mouth, using the liquid infusion tube 5 for infusing the liquid can effectively reduce the volatilization of the mobile phase during infusing the liquid, reduce the waste of the mobile phase, reduce the pollution to the environment, and protect the health of the experimenters.

[0039] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of patent protection of the utility model.

Claims

1. A liquid chromatography mobile phase rehydration bottle, comprising a bottle body (1) and a bottle cap (2) covering the bottle mouth of the bottle body (1), the bottle cap (2) being provided with a drainage tube (3) for discharging the mobile phase in the inner cavity of the bottle body (1), the liquid inlet of the drainage tube (3) being provided with a filter head (4), characterized in that: It also comprises a liquid infusion tube (5) for infusing liquid into the inner cavity of the bottle body (1); a filter sheet (7) is installed at the liquid outlet of the liquid infusion tube (5), and the bottom of the filter sheet (7) is in contact with the bottom of the inner cavity of the bottle body (1).

2. The liquid chromatography mobile phase replenishment bottle according to claim 1, characterized in that: The bottle cap (2) is provided with a through hole for the liquid infusion tube (5) to pass through, and the liquid infusion tube (5) is installed in the through hole via an inner plug sleeve.

3. The liquid chromatography mobile phase replenishment bottle according to claim 1, characterized in that: The fluid infusion tube (5) is a hard tube.

4. The liquid chromatography mobile phase replenishment bottle according to claim 1, characterized in that: A sealing cover (6) is installed on the liquid inlet of the liquid replenishing tube (5).

5. The liquid chromatography mobile phase replenishment bottle according to claim 1, characterized in that: The bottom of the inner cavity of the bottle body (1) is provided with a fixing slot (11) for inserting the filter sheet (7).

6. The liquid chromatography mobile phase replenishment bottle according to claim 5, characterized in that: The fixed slot (11) is surrounded by a plurality of raised blocks arranged at intervals.

7. The liquid chromatography mobile phase replenishment bottle according to claim 1, characterized in that: A metal piece (8) is fixed to the lower end of the filter head (4), and the outer surface of the metal piece (8) is covered with an isolation film; a magnetic block for adsorbing the metal piece (8) is provided on the outside of the bottle body (1), and the magnetic block is wrapped and fixed to the bottom of the bottle body (1) through a plastic pad (9).

8. The liquid chromatography mobile phase replenishment bottle according to claim 1, characterized in that: The bottle cap (2) is provided with a through hole for the drainage tube (3) to pass through, and the drainage tube (3) is installed in the through hole via an inner plug sleeve.

9. The liquid chromatography mobile phase replenishment bottle according to claim 1, characterized in that: The filter head (4) and the filter plate (7) are both made of stainless steel.

10. The liquid chromatography mobile phase replenishment bottle according to claim 1, characterized in that: The outer surface of the bottle body (1) is provided with scale lines (10).

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