CN214225044U

CN214225044U - Sample introduction device of liquid chromatograph

Info

Publication number: CN214225044U
Application number: CN202023265047.0U
Authority: CN
Inventors: 王凤丹; 罗志强
Original assignee: Huanchu Testing Technology Shanghai Co ltd
Current assignee: Huanchu Testing Technology Shanghai Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-17
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a sampling device of liquid chromatograph, the on-line screen storage device comprises a base, the up end fixedly connected with mount of base, the solution dish has been placed to the inside of mount, the inside fixedly connected with filter screen of solution dish, the both sides of filter screen are provided with solution chamber and filter chamber respectively, one side of mount is provided with the fixed column, the up end fixedly connected with roof-rack of fixed column, miniature extraction pump is installed to the up end of roof-rack, the water inlet of miniature extraction pump can be dismantled and be connected with the pipette, the lower extreme outside fixedly connected with hose of pipette, the lower extreme fixedly connected with imbibition ball of hose, imbibition ball and hose intercommunication. This liquid chromatograph's sampling device is through being provided with the filter screen, and the filter screen can be fine filters detection liquid to guarantee that the liquid that gets into the chromatograph is pure and clean, guarantee the accuracy of result, great improvement liquid chromatograph sampling device's result of use.

Description

Sample introduction device of liquid chromatograph

Technical Field

The utility model relates to a liquid chromatograph technical field specifically is a liquid chromatograph's sampling device.

Background

The liquid chromatograph is a device which utilizes the difference of the distribution ratio of a mixture between two liquids which are liquid-solid or immiscible to perform linear separation on the mixture, and then the mixture is analyzed and fixed; the liquid chromatograph is superposed with a solvent cabinet, a vacuum degasser, a liquid discharge valve, an automatic sample injector, a column incubator and a detector from top to bottom at one time, a tester places a test tube in the sample injector, liquid to be tested is injected into the chromatographic column from the test tube and moves in a fixed phase through pressure, different substances sequentially leave the chromatographic column due to different interaction of different substances of a tested substance and the fixed phase, different peak signals are obtained through the detector, and finally the substances contained in the tested substance are judged through analyzing and comparing the signals;

when liquid enters a chromatograph for analysis, if the liquid contains impurities, the analysis result is affected, and the result is inaccurate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid chromatograph's sampling device to when proposing liquid entering chromatograph and carry out the analysis in solving above-mentioned background art, if contain impurity in the liquid, can exert an influence to the analysis result, cause the problem that the unsafe condition of result takes place.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a sampling device of liquid chromatograph, includes the base, the up end fixedly connected with mount of base, the solution dish has been placed to the inside of mount, the inside fixedly connected with filter screen of solution dish, the both sides of filter screen are provided with solution chamber and filter chamber respectively, one side of mount is provided with the fixed column, the up end fixedly connected with roof-rack of fixed column, miniature extraction pump is installed to the up end of roof-rack, the water inlet of miniature extraction pump can be dismantled and be connected with the pipette, the lower extreme outside fixedly connected with hose of pipette, the lower terminal surface fixedly connected with imbibition ball of hose, imbibition ball and hose intercommunication, the delivery port of miniature extraction pump can be dismantled and be connected with the feed liquor pipe.

Preferably, both sides of the upper end of the solution plate are fixedly connected with extension edges.

Preferably, four groups of fixing columns are arranged in the number of the fixing columns, and the four groups of fixing columns are respectively positioned at four corners of the upper end face of the base.

Preferably, the lower end surface of the base is fixedly connected with an anti-skid pad.

Preferably, a plurality of groups of circulation holes are arranged on the outer side of the liquid suction ball, and the liquid suction ball is of a hollow structure.

Preferably, the height of the filter screen is equal to that of the solution tray.

Compared with the prior art, the beneficial effects of the utility model are that: the sample introduction device of the liquid chromatograph is provided with the filter screen, and the filter screen can well filter the detection liquid, so that the purity of the liquid entering the chromatograph is ensured, the accuracy of the result is ensured, and the use effect of the sample introduction device of the liquid chromatograph is greatly improved;

this sampling device of liquid chromatograph places at the mount through being provided with the mount, solution dish moreover to made things convenient for the dismantlement washing to solution dish, improved liquid chromatograph sampling device's practicality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the base of the present invention;

fig. 3 is a schematic view of the connection structure of the hose and the liquid suction ball of the present invention.

In the figure: 1. a base; 2. a fixed mount; 3. a solution pan; 4. a non-slip mat; 5. extending the long side; 6. a pipette; 7. a micro extraction pump; 8. a liquid inlet pipe; 9. fixing a column; 10. a hose; 11. a filter screen; 12. a liquid sucking ball; 13. a top frame; 14. a filter chamber; 15. a solution chamber.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: a sample introduction device of a liquid chromatograph comprises a base 1, wherein a fixed frame 2 is fixedly connected to the upper end face of the base 1, a solution disc 3 is placed inside the fixed frame 2, a filter screen 11 is fixedly connected inside the solution disc 3, a solution cavity 15 and a filter cavity 14 are respectively arranged on two sides of the filter screen 11, a fixed column 9 is arranged on one side of the fixed frame 2, an upper end face of the fixed column 9 is fixedly connected with a top frame 13, a miniature extraction pump 7 is installed on the upper end face of the top frame 13, a liquid suction pipe 6 is detachably connected to a water inlet of the miniature extraction pump 7, a hose 10 is fixedly connected to the outer side of the lower end of the liquid suction pipe 6, a liquid suction ball 12 is fixedly connected to the lower end face of the hose 10, the liquid suction ball 12 is communicated with the hose 10, and a liquid inlet pipe 8 is detachably connected to a water outlet of the miniature extraction pump 7;

equal fixedly connected with of upper end both sides extension limit 5 of solution dish 3, made things convenient for taking of solution dish 3, the quantity of fixed column 9 is provided with four groups and four group's fixed column 9 are located the up end four corners position of base 1 respectively, play fine fixed action to roof frame 13, the lower terminal surface fixedly connected with slipmat 4 of base 1, the coefficient of friction of base 1 has been improved, thereby play fine anti-skidding effect, the outside of imbibition ball 12 is provided with multiunit opening and imbibition ball 12 is hollow structure's imbibition ball, the feed liquor has been made things convenient for, the height of filter screen 11 equals with the height of solution dish 3, avoid easy streaming.

The working principle is as follows: the base 1 is placed on an operation table, then the detection solution is poured into the filter cavity 14, the detection solution is filtered by the filter screen 11 and flows into the solution cavity 15, the liquid inlet pipe 8 is connected with a chromatograph, and finally the micro extraction pump 7 is started, so that the solution in the solution cavity 15 is sucked into the chromatograph.

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

Claims

1. The utility model provides a sampling device of liquid chromatograph, includes base (1), its characterized in that: the upper end surface of the base (1) is fixedly connected with a fixed frame (2), a solution disc (3) is arranged in the fixed frame (2), a filter screen (11) is fixedly connected in the solution disc (3), a solution cavity (15) and a filter cavity (14) are respectively arranged at two sides of the filter screen (11), one side of the fixed frame (2) is provided with a fixed column (9), the upper end surface of the fixed column (9) is fixedly connected with a top frame (13), a micro extraction pump (7) is arranged on the upper end surface of the top frame (13), a liquid suction pipe (6) is detachably connected with a water inlet of the micro extraction pump (7), the outer side of the lower end of the liquid suction pipe (6) is fixedly connected with a hose (10), the lower end surface of the hose (10) is fixedly connected with a liquid suction ball (12), the liquid suction ball (12) is communicated with the hose (10), and the water outlet of the micro extraction pump (7) is detachably connected with the liquid inlet pipe (8).

2. The sample introduction device of a liquid chromatograph according to claim 1, wherein: both sides of the upper end of the solution plate (3) are fixedly connected with extension edges (5).

3. The sample introduction device of a liquid chromatograph according to claim 1, wherein: four groups of fixing columns (9) are arranged in the number of the fixing columns (9), and the four groups of fixing columns (9) are respectively positioned at four corners of the upper end face of the base (1).

4. The sample introduction device of a liquid chromatograph according to claim 1, wherein: the lower end face of the base (1) is fixedly connected with an anti-slip mat (4).

5. The sample introduction device of a liquid chromatograph according to claim 1, wherein: a plurality of groups of circulation holes are arranged on the outer side of the liquid suction ball (12), and the liquid suction ball (12) is of a hollow structure.

6. The sample introduction device of a liquid chromatograph according to claim 1, wherein: the height of the filter screen (11) is equal to that of the solution tray (3).