CN110208445A - Liquid-phase chromatographic column column tube and liquid-phase chromatographic column - Google Patents

Liquid-phase chromatographic column column tube and liquid-phase chromatographic column Download PDF

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Publication number
CN110208445A
CN110208445A CN201910613691.5A CN201910613691A CN110208445A CN 110208445 A CN110208445 A CN 110208445A CN 201910613691 A CN201910613691 A CN 201910613691A CN 110208445 A CN110208445 A CN 110208445A
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CN
China
Prior art keywords
liquid
phase
chromatographic column
phase chromatographic
sieve plate
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Pending
Application number
CN201910613691.5A
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Chinese (zh)
Inventor
王柯
汤俊
高晓红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU SANTAI TECHNOLOGY CO LTD
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CHANGZHOU SANTAI TECHNOLOGY CO LTD
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Priority to CN201910613691.5A priority Critical patent/CN110208445A/en
Publication of CN110208445A publication Critical patent/CN110208445A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02Column chromatography
    • G01N30/60Construction of the column
    • G01N30/6052Construction of the column body
    • G01N30/606Construction of the column body with fluid access or exit ports

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

The invention discloses a kind of liquid-phase chromatographic column column tube and liquid-phase chromatographic column, liquid-phase chromatographic column column tube includes the cylinder of upper end opening, lower end closed;The cylinder has cylinder peripheral wall and lower end closed wall, the lower end closed wall and the cylinder peripheral wall surround barrel chamber, the lower end closed wall is equipped with liquid-phase outlet, and the lower end closed wall is additionally provided with radial dimension less than lower end closed wall, adaptation and the blind hole for accommodating lower sieve plate and being connected with liquid-phase outlet.The present invention can carry the lower sieve plate of smaller size, to reduce the contraction of lower sieve plate, its separating effect is improved, while the liquid-phase chromatographic column of plurality of specifications can be made using the lower sieve plate of same specification type, the use specification type for reducing lower sieve plate, in addition also reduces manufacturing cost.

Description

Liquid-phase chromatographic column column tube and liquid-phase chromatographic column
Technical field
The present invention relates to a kind of liquid-phase chromatographic column column tube and liquid-phase chromatographic columns.
Background technique
Currently, liquid chromatography technology is that one kind quickly prepares column chromatography format, it is based upon pump and generates pressure acceleration Mobile phase passes through the elution speed of pre-filling type chromatography column, and core component is liquid-phase chromatographic column, and separation principle is: will Blend sample is dissolved in a kind of mobile phase, adsorbs it by the filling stationary phase in liquid-phase chromatographic column with certain rate Agent, it is since mixture each component is in the different solubility of stationary phase and mobile phase, i.e., different in two alternate distribution coefficients, therefore mix Object component will flow through stationary phase adsorbent with different rates, to achieve the purpose that separation.The liquid-phase chromatographic column of the prior art Structure in include lower sieve plate and column tube, lower sieve plate is placed directly within the lower end of the chamber of column tube, accepted using lower envelope wall or lower cover It stays sieve plate, the liquid-phase chromatographic column of this structure has the disadvantage in that
1, lower sieve plate needs and the chamber of column tube is adapted to, and diameter is bigger, since the sieve plate shrinking percentage of identical material is one Fixed, if its diameter is bigger, the contraction of sieve plate in actual use is more severe, this will cause the periphery meeting of the chamber of column tube There are certain gaps with sieve plate, so that separating effect is bad, there is the phenomenon that leakage;
2, the liquid-phase chromatographic column of this structure, each structure need a kind of lower sieve plate of size to go to be adapted to, and use scope is not wide;
3, due to needing the lower sieve plate of larger size to go to be adapted to, higher cost.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of existing technologies, a kind of liquid-phase chromatographic column column tube is provided, Its lower sieve plate that can carry smaller size improves its separating effect, while can make a variety of to reduce the contraction of lower sieve plate The liquid-phase chromatographic column of specification uses the lower sieve plate of same specification type, reduces the use specification type of lower sieve plate, in addition also drops Low manufacturing cost.
In order to solve the above-mentioned technical problem, the technical scheme is that a kind of liquid-phase chromatographic column column tube, it includes upper end The cylinder of opening, lower end closed;The cylinder includes
Cylinder peripheral wall;
Lower end closed wall, the lower end closed wall and the cylinder peripheral wall surround barrel chamber, and the lower end closed wall goes out equipped with liquid phase Mouthful, the lower end closed wall be additionally provided with radial dimension less than lower end closed wall, adaptation and accommodate lower sieve plate and with liquid-phase outlet phase The blind hole of connection.
Further for the liquid phase by stationary phase adsorbent can be made to be guided on lower sieve plate well, the lower end seal The joining place closed between the radial outer end of the upper surface of wall and the medial surface of the cylinder peripheral wall is arc transition shape.
Further for cylinder can be made to carry stationary phase adsorbent well, it is set to be evenly distributed, the lower end closed Part of the upper surface of wall (12) in addition to blind hole is plane.
Further, the circle center of the blind hole is overlapped with the circle center of the liquid-phase outlet.
Further for liquid phase catchment effect is improved, the lower end surface of the blind hole, which is equipped with, leads the liquid phase after lower sieve plate It flow to the liquid phase deflector of liquid-phase outlet.
Further, the liquid phase deflector includes:
The center deflector hole being arranged with the liquid-phase outlet with circle center;
It is connected with the center deflector hole and along at least diversion trench for radially extending setting of center deflector hole.
Further, the diversion trench is equipped at least two, and uniformly distributed along the circumferential direction of center deflector hole.
Further for the intensity for increasing lower end closed wall or even cylinder, the lower end surface of the lower end closed wall is equipped with strong Spend reinforcing mechanisms;
Further, the intensity reinforcing mechanisms include at least one along the circumferentially extending of lower end closed wall circumferential reinforcing rib and/ Or at least one along lower end closed wall the radial reinforcing rib radially extended.
Further, the annular convex rib suitable for anti-solid powder powder leakage is provided on the lower end surface of the blind hole.
The present invention also provides a kind of liquid-phase chromatographic columns, it includes:
Liquid-phase chromatographic column column tube;
Lower sieve plate, the lower sieve plate are placed in the blind hole of the lower end closed wall of the liquid-phase chromatographic column column tube;
Lid, described to cover the upper end for being connected to the liquid-phase chromatographic column column tube middle cylinder body, the lid is formed after connecting with the cylinder One accommodating cavity;
Built-in plug, the built-in plug are set in the accommodating cavity, and the built-in plug is equipped with fluid inlet, the fluid inlet Partially extend through the lid;
The upper sieve plate of built-in plug lower section, the upper sieve plate and the lower sieve plate in accommodating cavity are placed in the accommodating cavity Between area filling stationary phase adsorbent.
Further, described to cover the upper end for being threadingly attached to or being connected to by welding the cylinder.
After above-mentioned technical proposal, the present invention has the following beneficial effects:
1, compared with prior art, liquid-phase chromatographic column column tube of the invention can carry the lower sieve plate of smaller size, due to identical material The sieve plate shrinking percentage of material is certain, if its diameter is smaller, the contraction of sieve plate in actual use is smaller, to reduce The contraction of lower sieve plate, the periphery and blind hole for avoiding lower sieve plate generate biggish gap, to finally improve its separating effect;
2, after use further as lower sieve plate, contraction is small compared with the prior art, to improve the reuse rate of lower sieve plate;
3, compared with prior art, the present invention does not need a kind of a kind of corresponding lower sieve using specification type of liquid-phase chromatographic column of specification Plate, it is only necessary to open up the blind hole of corresponding size on lower end closed wall, make it possible to the liquid-phase chromatographic column of plurality of specifications Using the lower sieve plate of same specification type, reduce the use specification type of lower sieve plate.
4, compared with prior art, liquid-phase chromatographic column column tube of the invention carries the lower sieve plate of smaller size and reduces lower sieve The use specification type of plate, reduces manufacturing cost.
Detailed description of the invention
Fig. 1 is the perspective view one of liquid-phase chromatographic column column tube of the invention;
Fig. 2 is the perspective view two of liquid-phase chromatographic column column tube of the invention;
Fig. 3 is the perspective view of liquid-phase chromatographic column of the invention;
Fig. 4 is the structure sectional view of liquid-phase chromatographic column of the invention;
Fig. 5 is the perspective view of the built-in plug of liquid-phase chromatographic column of the invention.
Specific embodiment
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing The present invention is described in further detail.
Embodiment one
As shown in Fig. 1,2,4, a kind of liquid-phase chromatographic column column tube, it includes the cylinder 1 of upper end opening, lower end closed;The cylinder It includes
Cylinder peripheral wall 11;
Lower end closed wall 12, the lower end closed wall 12 and the cylinder peripheral wall 11 surround barrel chamber 10, on the lower end closed wall 12 Equipped with liquid-phase outlet 12a, the lower end closed wall 12 is additionally provided with radial dimension and is less than lower end closed wall 12, is adapted to and accommodates lower sieve Plate 2 and the blind hole 12b being connected with liquid-phase outlet 12a.
In the present embodiment, lower sieve plate 2 is cylindrical structure, and the diameter of blind hole 12b is adapted to the diameter of lower sieve plate 2, and And the depth of blind hole 12b is equal to or slightly less than the height of lower sieve plate 2, in this way primarily to being carried on lower end closed wall 12 Stationary phase adsorbent, and liquid phase can be made to flow on the lower sieve plate 2 in blind hole 12b.
Specifically, as shown in figure 4, the radial outer end of the upper surface 12c of the lower end closed wall 12 and the cylinder peripheral wall 11 Medial surface between joining place be arc transition shape, the arc transition shape setting joining place liquid phase can be guided very well downward Sieve plate 2 flows, and the position A in Fig. 1 is joining place.
Specifically, as shown in Figure 1, making it be evenly distributed in order to make cylinder 1 carry stationary phase adsorbent well, Part of the upper surface 12c of the lower end closed wall 12 in addition to blind hole 12b is plane.
Specifically, part of the upper surface 12c of the lower end closed wall 12 in addition to blind hole 12b can also set deflector, with Liquid phase is guided at lower sieve plate 2 well.
Specifically, as shown in Figure 1, the circle center of the blind hole 12b and the circle center of liquid-phase outlet 12a weight It closes.The design is primarily to can make liquid phase flow out well from liquid-phase outlet 12a.
As shown in Figure 1, the lower end surface of the blind hole 12b is equipped with will be after lower sieve plate 2 in order to improve liquid phase catchment effect Liquid phase be guided to the liquid phase deflector of liquid-phase outlet 12a.
As shown in Fig. 2, the liquid phase deflector is such as, but not limited to flowering structure comprising:
The center deflector hole 12e being arranged with the liquid-phase outlet 12a with circle center;
It is connected with the center deflector hole 12e and along at least diversion trench for radially extending setting of center deflector hole 12e 12f。
The diversion trench 12f is equipped at least two, and uniformly distributed along the circumferential direction of center deflector hole 12e.
In the present embodiment, diversion trench 12f is equipped with 8, and but not limited to this.
As shown in Fig. 2, the lower end surface 12d of the lower end closed wall 12 is equipped with intensity reinforcing mechanisms;
The intensity reinforcing mechanisms include at least one along the circumferentially extending of lower end closed wall 12 circumferential reinforcing rib 12g and/or At least one along lower end closed wall 12 the radial reinforcing rib 12h radially extended;In the present embodiment, the intensity reinforcing mechanisms Long radial reinforcing rib 12h is adjusted including 2 circumferential direction reinforcing rib 12g and positioned at 12 short radial reinforcing rib 12h of inside and 8, But not limited to this, can also only include circumferential reinforcing rib 12g or only include radial reinforcing rib 12h.
As shown in Figure 1, being provided with the annular convex rib 12m suitable for anti-solid powder powder leakage on the lower end surface of the blind hole 12b.
Embodiment two
As shown in Fig. 3 ~ 5, a kind of liquid-phase chromatographic column, it includes:
Liquid-phase chromatographic column column tube in embodiment one;
Lower sieve plate 2, in the blind hole 12b for the lower end closed wall 12 that the lower sieve plate 2 is placed in the liquid-phase chromatographic column column tube;
Lid 3, the lid 3 is connected to the upper end of the liquid-phase chromatographic column column tube middle cylinder body 1, after the lid 3 and the cylinder 1 connect Form an accommodating cavity 20;
Built-in plug 4, the built-in plug 4 is set in the accommodating cavity 20, and the built-in plug 4 is equipped with fluid inlet 41, described Fluid inlet 41 partially extends through the lid 3;
The upper sieve plate 5 of built-in 4 lower section of plug, the upper sieve plate 5 and institute in accommodating cavity 20 are placed in the accommodating cavity 20 State the area filling stationary phase adsorbent between lower sieve plate 2.
As shown in figure 5, in the present embodiment, the lower end surface of built-in plug 4 can be equipped with uniform divided flows mechanism 42, the uniform divided flows Mechanism is primarily to even in liquid phase is distributed to upper sieve plate 5 and flows through stationary phase adsorbent very well, uniform divided flows mechanism 42 is The customary means of those skilled in the art, the present invention, which is not done, specifically to be repeated.
In the present embodiment, liquid phase can enter from fluid inlet 41, and the shunting by uniform divided flows mechanism 42 flows through Sieve plate 5 then flowed through stationary phase adsorbent, passes through lower sieve plate 2, finally goes out from liquid-phase outlet 12a.
The lid 3 can be threadingly attached to or be connected to by welding the upper end of the cylinder 1.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effects carry out It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair Within bright protection scope.
In the description of the present invention, it is to be understood that, indicating position or the term of positional relationship are based on shown in attached drawing Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, rather than the equipment of indication or suggestion meaning Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be mechanical connect It connects, is also possible to be electrically connected;It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical", The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage Solution is indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical" It has to fully horizontally, but can be slightly tilted.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature Directly contacted including the first and second features, also may include the first and second features be not direct contact but by them it Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy Right above sign and oblique upper, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature it Under, lower section and fisrt feature included below be directly below and diagonally below the second feature, or be merely representative of first feature horizontal height Less than second feature.

Claims (10)

1. a kind of liquid-phase chromatographic column column tube, which is characterized in that it includes the cylinder (1) of upper end opening, lower end closed;The cylinder It includes
Cylinder peripheral wall (11);
Lower end closed wall (12), the lower end closed wall (12) and the cylinder peripheral wall (11) surround barrel chamber (10), the lower end seal Wall (12) are closed equipped with liquid-phase outlet (12a), the lower end closed wall (12) is additionally provided with radial dimension less than lower end closed wall (12), the blind hole (12b) for being adapted to and accommodating lower sieve plate (2) and be connected with liquid-phase outlet (12a).
2. liquid-phase chromatographic column column tube according to claim 1, which is characterized in that
Rank between the radial outer end of the upper surface (12c) of the lower end closed wall (12) and the medial surface of the cylinder peripheral wall (11) Meeting place is arc transition shape.
3. liquid-phase chromatographic column column tube according to claim 1, which is characterized in that
Part of the upper surface (12c) of the lower end closed wall (12) in addition to blind hole (12b) is plane.
4. liquid-phase chromatographic column column tube according to claim 1, which is characterized in that
The circle center of the blind hole (12b) is overlapped with the circle center of the liquid-phase outlet (12a).
5. liquid-phase chromatographic column column tube according to claim 1, which is characterized in that
The lower end surface of the blind hole (12b) is equipped with the liquid phase that the liquid phase after lower sieve plate (2) is guided to liquid-phase outlet (12a) Deflector.
6. liquid-phase chromatographic column column tube according to claim 5, which is characterized in that the liquid phase deflector includes:
The center deflector hole (12e) being arranged with the liquid-phase outlet (12a) with circle center;
It is connected with the center deflector hole (12e) and along at least water conservancy diversion for radially extending setting of center deflector hole (12e) Slot (12f).
7. liquid-phase chromatographic column column tube according to claim 1, which is characterized in that
The lower end surface (12d) of the lower end closed wall (12) is equipped with intensity reinforcing mechanisms;
The intensity reinforcing mechanisms include at least one along the circumferentially extending of lower end closed wall (12) circumferential reinforcing rib (12g) And/or at least one along lower end closed wall (12) the radial reinforcing rib (12h) radially extended.
8. liquid-phase chromatographic column column tube according to claim 1, which is characterized in that
The annular convex rib (12m) suitable for anti-solid powder powder leakage is provided on the lower end surface of the blind hole (12b).
9. a kind of liquid-phase chromatographic column, which is characterized in that it includes:
Such as liquid-phase chromatographic column column tube described in any item of the claim 1 to 8;
Lower sieve plate (2), the lower sieve plate (2) are placed in the blind hole of the lower end closed wall (12) of the liquid-phase chromatographic column column tube In (12b);
It covers (3), the lid (3) is connected to the upper end of the liquid-phase chromatographic column column tube middle cylinder body (1), lid (3) and the cylinder An accommodating cavity (20) are formed after body (1) connection;
Built-in plug (4), the built-in plug (4) are set in the accommodating cavity (20), and the built-in plug (4) is equipped with fluid inlet (41), the fluid inlet (41) partially extends through the lid (3);
The upper sieve plate (5) being placed in the accommodating cavity (20) below built-in plug (4), the upper sieve in accommodating cavity (20) Area filling stationary phase adsorbent between plate (5) and the lower sieve plate (2).
10. liquid-phase chromatographic column according to claim 9, which is characterized in that
The lid (3) is connected through a screw thread or is connected to by welding the upper end of the cylinder (1).
CN201910613691.5A 2019-07-09 2019-07-09 Liquid-phase chromatographic column column tube and liquid-phase chromatographic column Pending CN110208445A (en)

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Application Number Priority Date Filing Date Title
CN201910613691.5A CN110208445A (en) 2019-07-09 2019-07-09 Liquid-phase chromatographic column column tube and liquid-phase chromatographic column

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Application Number Priority Date Filing Date Title
CN201910613691.5A CN110208445A (en) 2019-07-09 2019-07-09 Liquid-phase chromatographic column column tube and liquid-phase chromatographic column

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Publication Number Publication Date
CN110208445A true CN110208445A (en) 2019-09-06

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GB1126229A (en) * 1964-09-17 1968-09-05 Knecht Filterwerke Gmbh Sieve plate assembly for use as a filter insert
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CN106730998A (en) * 2017-02-22 2017-05-31 周鑫 A kind of distributor in liquid-phase chromatographic column
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CN206837552U (en) * 2017-06-16 2018-01-05 常州三泰科技有限公司 Liquid chromatography separation column
CN207096191U (en) * 2017-07-10 2018-03-13 南通裕弘分析仪器有限公司 A kind of performance liquid chromatographic column
CN109100203A (en) * 2018-08-22 2018-12-28 佛山科学技术学院 A kind of solid-phase extraction column for residue of veterinary drug measurement
CN210294188U (en) * 2019-07-09 2020-04-10 常州三泰科技有限公司 Liquid chromatography column tube and liquid chromatography column

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GB1126229A (en) * 1964-09-17 1968-09-05 Knecht Filterwerke Gmbh Sieve plate assembly for use as a filter insert
EP0258813A1 (en) * 1986-09-02 1988-03-09 VEMAS Vertriebs- und Marketinggesellschaft m.b.h. Catalytic granule converter
CN101947392A (en) * 2010-08-13 2011-01-19 利穗科技(苏州)有限公司 Shunt plate for preparing chromatographic column
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CN206804604U (en) * 2017-03-30 2017-12-26 南通裕弘分析仪器有限公司 A kind of performance liquid chromatographic column
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CN109100203A (en) * 2018-08-22 2018-12-28 佛山科学技术学院 A kind of solid-phase extraction column for residue of veterinary drug measurement
CN210294188U (en) * 2019-07-09 2020-04-10 常州三泰科技有限公司 Liquid chromatography column tube and liquid chromatography column

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