CN204671940U - A kind of solid-phase extraction column automatic soaking device - Google Patents

A kind of solid-phase extraction column automatic soaking device Download PDF

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Publication number
CN204671940U
CN204671940U CN201520221917.4U CN201520221917U CN204671940U CN 204671940 U CN204671940 U CN 204671940U CN 201520221917 U CN201520221917 U CN 201520221917U CN 204671940 U CN204671940 U CN 204671940U
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China
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solid
phase extraction
extraction column
sealing
sample introduction
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CN201520221917.4U
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Chinese (zh)
Inventor
田莉娟
李东旭
王斌
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Beijing Polytech Instrument Co Ltd
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Beijing Polytech Instrument Co Ltd
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Abstract

The utility model relates to a kind of solid-phase extraction column automatic soaking device, it is characterized in that: it comprises an inside and establishes Packed solid-phase extraction column, the top port of solid-phase extraction column is provided with the sealing device that a top is provided with flange, the flange of sealing device is stuck in the top port of solid-phase extraction column, and the bottom outer wall of sealing device and the inwall of solid-phase extraction column are fitted; The center of sealing device is provided with a through hole, plugs by through hole the sample introduction needle that a center is provided with fluid passage movably, and the syringe needle of the bottom of sample introduction needle arranges in coniform; The through hole of sealing device comprises upper bevel section, middle part equal diameter section and bottom enlarged diameter section, and the aperture of middle part equal diameter section is equal with the external diameter of the sample introduction needle being positioned at syringe needle top.Control sample introduction needle to rest on position that syringe needle can not block the through hole of sealing device completely and realize in the filler that reagent instills in solid-phase extraction column under the effect of self gravitation, thus realize the immersion of solid-phase extraction column post.

Description

A kind of solid-phase extraction column automatic soaking device
Technical field
The utility model relates to a kind of solid-phase extraction column automatic soaking device, belongs to solid phase extraction techniques field.
Background technology
At present, Full-automatic solid phase extraction instrument, when realizing SPE and crossing column operation, needs first to be docked with Full-automatic solid phase extraction instrument is airtight by solid-phase extraction column, provides stable post speed excessively.When Full-automatic solid phase extraction instrument docks with solid-phase extraction column, be all generally the mode adopting direct airtight docking, then complete the reagent adding procedure such as activation, loading, drip washing, wash-out in experiment.Because solid-phase extraction column and Full-automatic solid phase extraction instrument are the relations that totally-enclosed is docked, so when Full-automatic solid phase extraction instrument automatic powder adding reagent adding, reagent is forced through solid-phase extraction column, the reagent adding procedures such as activation, loading, drip washing, wash-out are pressed through post, like this when doing SPE experiment, post of not exerting pressure cannot be realized, cause the soaking function that cannot realize reagent.
Summary of the invention
For the problems referred to above, the purpose of this utility model is to provide a kind of solid-phase extraction column automatic soaking device, can realize solvent automatic soaking function, thus improves elution efficiency and the rate of recovery.
For achieving the above object, the utility model takes following technical scheme: a kind of solid-phase extraction column automatic soaking device, it is characterized in that: it comprises an inside and establishes Packed solid-phase extraction column, the top port of described solid-phase extraction column is provided with the sealing device that a top is provided with flange, the flange of described sealing device is stuck in the described top port of described solid-phase extraction column, and the bottom outer wall of described sealing device and the inwall of described solid-phase extraction column are fitted; The center of described sealing device is provided with a through hole, plugs the sample introduction needle that a center is provided with fluid passage in described through hole movably, the syringe needle of the bottom of described sample introduction needle arranges in coniform; The described through hole of described sealing device comprises upper bevel section, middle part equal diameter section and bottom enlarged diameter section, and the aperture of described middle part equal diameter section is equal with the external diameter of the described sample introduction needle being positioned at described syringe needle top.
The utility model is owing to taking above technical scheme, it has the following advantages: 1, the utility model is provided with a sealing device in the top port of solid-phase extraction column, the sample introduction needle that a center is provided with fluid passage is plugged movably in the through hole of sealing device, the syringe needle of sample introduction needle arranges in coniform, by controlling the diverse location of syringe needle in sealing device of sample introduction needle, realize the immersion of reagent post, soaked post and can extend the time of staying of reagent in solid phase extraction column stuffing.2, the utility model is at the filler of high solid phase extraction procedure due to reagent automatic soaking solid-phase extraction column, therefore, it is possible to improve elution efficiency and the rate of recovery of solid phase extraction procedure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Generalized section when Fig. 2 is the utility model immersion
Fig. 3 is the utility model profile when just pressing through post
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in detail.
As shown in Figures 1 to 3, the utility model proposes a kind of solid-phase extraction column automatic soaking device, it comprises an inside and establishes Packed solid-phase extraction column 1, the top port of solid-phase extraction column 1 is provided with the sealing device 2 that a top is provided with flange, the upper flange of sealing device 2 is stuck in the top port of solid-phase extraction column 1, and the bottom outer wall of sealing device 2 and the inwall of solid-phase extraction column 1 are fitted.Be provided with a through hole 3 at the center of sealing device 2, the center that plugs movably in through hole 3 is provided with the sample introduction needle 4 of fluid passage, and the syringe needle 5 of the bottom of sample introduction needle 4 is arranged in coniform.
As shown in Figure 2, the through hole 3 of sealing device 2 comprises upper bevel section, middle part equal diameter section and bottom enlarged diameter section, and wherein, in the middle part of through hole 3, the aperture of equal diameter section is equal with the external diameter of the sample introduction needle 4 being positioned at syringe needle 5 top.Upper bevel section can be conducive to sample introduction needle 4 and insert in sealing device 2.When carrying out SPE impregnation stage, the syringe needle 5 of sample introduction needle 4 is positioned at the middle part equal diameter section of through hole 3, when liquid slowly falls, due to capillary reason, it is large that liquid can assemble change, until just can fall when its gravity is greater than surface tension, the bottom enlarged diameter section of through hole 3 can prevent liquid from contacting with the direct of sealing device 2, is also conducive to the direct whereabouts of liquid.
In above-described embodiment, sealing device 2 adopts PTFE (polytetrafluoroethylene (PTFE)) material.Sample introduction needle 4 adopts stainless steel material.
The various embodiments described above are only for illustration of the utility model; wherein the structure, connected mode etc. of each device all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.

Claims (2)

1. a solid-phase extraction column automatic soaking device, it is characterized in that: it comprises an inside and establishes Packed solid-phase extraction column, the top port of described solid-phase extraction column is provided with the sealing device that a top is provided with flange, the flange of described sealing device is stuck in the described top port of described solid-phase extraction column, and the bottom outer wall of described sealing device and the inwall of described solid-phase extraction column are fitted; The center of described sealing device is provided with a through hole, plugs the sample introduction needle that a center is provided with fluid passage in described through hole movably, the syringe needle of the bottom of described sample introduction needle arranges in coniform;
The described through hole of described sealing device comprises upper bevel section, middle part equal diameter section and bottom enlarged diameter section, and the aperture of described middle part equal diameter section is equal with the external diameter of the described sample introduction needle being positioned at described syringe needle top.
2. a kind of solid-phase extraction column automatic soaking device as claimed in claim 1, is characterized in that: described sealing device adopts polytetrafluoroethylmaterial material, and described sample introduction needle adopts stainless steel material.
CN201520221917.4U 2015-04-13 2015-04-13 A kind of solid-phase extraction column automatic soaking device Active CN204671940U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520221917.4U CN204671940U (en) 2015-04-13 2015-04-13 A kind of solid-phase extraction column automatic soaking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520221917.4U CN204671940U (en) 2015-04-13 2015-04-13 A kind of solid-phase extraction column automatic soaking device

Publications (1)

Publication Number Publication Date
CN204671940U true CN204671940U (en) 2015-09-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104784974A (en) * 2015-04-13 2015-07-22 北京普立泰科仪器有限公司 Automatic solid-phase extraction column soaking device and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104784974A (en) * 2015-04-13 2015-07-22 北京普立泰科仪器有限公司 Automatic solid-phase extraction column soaking device and method
CN104784974B (en) * 2015-04-13 2016-05-25 北京普立泰科仪器有限公司 A kind of solid-phase extraction column automatic soaking device and method

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