CN205095461U - But solid -phase extraction post of negative pressure suction - Google Patents
But solid -phase extraction post of negative pressure suction Download PDFInfo
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- CN205095461U CN205095461U CN201520910946.1U CN201520910946U CN205095461U CN 205095461 U CN205095461 U CN 205095461U CN 201520910946 U CN201520910946 U CN 201520910946U CN 205095461 U CN205095461 U CN 205095461U
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Abstract
The utility model provides a but solid -phase extraction post of negative pressure suction, it relates to a solid -phase extraction post, concretely relates to but solid -phase extraction post of negative pressure suction. The utility model discloses but the purpose is the solid -phase extraction device that will solve the suction of current negative pressure exists that equipment cost is higher, bulky, the structure is complicated, the operating procedure loaded down with trivial details with the slower problem of extraction speed. A but solid -phase extraction post of negative pressure suction includes the stock solution bottle, adsorbs filled column and receiving flask, the stock solution bottle and adsorb the filled column between adopt threaded connection, absorption filled column and receiving flask between adopt threaded connection. Novel advantage: simplified the solid -phase extraction step, small, the practicality is strong, portable. The utility model discloses mainly used prepares but solid -phase extraction post of negative pressure suction.
Description
Technical field
The utility model relates to a kind of solid-phase extraction column, be specifically related to a kind of can the solid-phase extraction column of negative-pressure ward.
Background technology
SPE (SolidPhaseExtraction, SPE) is the seventies and eighties in 19th century Sample Pretreatment Technique that gets up of Later development.This technology can combine with the technology such as liquid chromatography technology, gas chromatographic technique, mass spectrum, can reduce sample substrate interference, improve detection sensitivity, be widely used in the separation of the field samples such as environment, pharmacy, clinical medicine, food, purification and enrichment.
SPE technology is a kind of physical extraction process comprising liquid phase and solid phase, mainly component to be measured is separated with interfering component with the active force between target analytes by the key function group on solid absorbent, thus reaches the object of sample separation enrichment.Comparatively conventional method makes fluid sample solution by adsorbent, retains wherein measured matter, then select suitable strength solvents to wash away impurity, then use the rapid wash-out measured matter of a small amount of solvent, thus reach quick separating purification and concentrated object.Therefore solid phase extraction techniques needs special extraction equipment to complete whole extraction process, and SPE equipment mainly comprises the equipment such as extraction filter, extraction column and vavuum pump, and solid-phase extraction column is the core of whole solid-phase extraction device.Usually sample poured into the SPE pillar after activation, then utilize extraction equipment to carry out pressurizeing, vacuumize or the method such as centrifugal makes sample by extraction column, the target extract in sample is attracted in solid phase extraction column stuffing, reaches the effect of isolation of purified.But such equipment cost is higher, volume is large, complex structure, complex operation step, and rate of extraction is comparatively slow, thus constrains further developing of solid phase extraction techniques.
Utility model content
The utility model object be to solve existing can the solid-phase extraction device of negative-pressure ward exist equipment cost compared with high, volume large, complex structure, complex operation step and the slower problem of rate of extraction, and provide a kind of can the solid-phase extraction column of negative-pressure ward.
A kind ofly the solid-phase extraction column of negative-pressure ward can comprise liquid storage bottle, adsorption stuffing post and receiving flask; Adopt between described liquid storage bottle with adsorption stuffing post and be threaded, described adsorption stuffing post is threaded with adopting between receiving flask;
Described liquid storage bottle comprises liquid storage bottle scale portion, filter and liquid storage bottle external thread part;
Described liquid storage bottle is conical flask body, the liquid storage bottle external thread part for being connected with adsorption stuffing male screw is provided with in the lower end of liquid storage bottle, being carved with the liquid storage bottle scale portion for characterizing liquid volume in liquid storage bottle on liquid storage bottle bottle surface, being provided with filter at liquid storage bottle inner bottom part;
Described adsorption stuffing post comprises filled column internal thread part, packing layer, Pressure gauge, vacuum filtration pipe, filled column external thread part, header, pressure valve and vacuum chamber portion;
Be provided with the filled column internal thread part for being threaded with the liquid storage bottle external thread part of liquid storage bottle in the upper end of adsorption stuffing post, in adsorption stuffing post, lower end is provided with packing layer; Header is provided with in the bottom of adsorption stuffing post, the inner space of described header and adsorption stuffing post,, adsorption stuffing column bottom outer at header is provided with and arranges vacuum chamber portion, described top, vacuum chamber portion is connected with the housing seal of adsorption stuffing post, when adsorption stuffing post is threaded with receiving flask, vacuum chamber portion is communicated with receiving flask; Filled column external thread part is provided with at the bottom outer surface in vacuum chamber portion, for adsorption stuffing post and being threaded between receiving flask, above filled column external thread part, on the sidewall in vacuum chamber portion, be provided with vacuum filtration pipe, vacuum filtration pipe is provided with Pressure gauge and pressure valve;
Described receiving flask comprises receiving flask external thread part and receiving flask scale portion, being provided with the receiving flask external thread part for being threaded with the filled column external thread part of adsorption stuffing post in the upper end of receiving flask, being carved with the receiving flask scale portion for characterizing liquid volume in receiving flask on receiving flask bottle surface;
Described adsorption stuffing post is communicated with by header with receiving flask.
The utility model advantage: one, provided by the utility model a kind of can the solid-phase extraction column of negative-pressure ward, structure is simple, eliminates solid-phase extraction device.Solid-phase extraction column is connected with vavuum pump, under vacuum pressure effect, complete solid phase extraction procedure, reaches the effect of sample separation, enrichment, extraction.And rate of extraction is fast, at the uniform velocity extract, required solvent obviously reduces.Due to adsorption stuffing post and fluid reservoir, receiving flask three is detachable and reuse.Therefore, the utility model optimizes solid-phase extraction device and simplifies SPE step, and volume is little, practical, is easy to carry.Two, provided by the utility model can the solid-phase extraction column applicability of negative-pressure ward strong, the whole device of setting up of more convenient sample-pretreating method adopts Split type movable to connect, and facilitates the cleaning of whole device and reusing again; Simultaneously can need to select different pressure according to actual sample process, can meet to greatest extent analytical work person in sample separation purge process to new method, New Terms set up demand.Relatively existing commercial band die pressing type solid-phase extraction device is expensive, use complicated operation, auxiliary device is many, this solid-phase extraction column installation cost is cheap, the utility model have employed the standing vavuum pump of common lab to realize whole solid phase extraction procedure, without the need to buying corresponding equipment again, makes method simple, being more convenient for practical operation, gas-chromatography can being delivered to by extracting the sample obtained---mass spectrum is used in conjunction instrument (GS-MS) and detects.The demand of all kinds of laboratory and field sampling preservation can be met, be easy to spread.
Accompanying drawing explanation
Fig. 1 is can the liquid storage bottle structural representation of solid-phase extraction column of negative-pressure ward described in detailed description of the invention one;
Fig. 2 is can the adsorption stuffing rod structure schematic diagram of solid-phase extraction column of negative-pressure ward described in detailed description of the invention one;
Fig. 3 is can the receiving flask structural representation of solid-phase extraction column of negative-pressure ward described in detailed description of the invention one.
Detailed description of the invention
Detailed description of the invention one: present embodiment be a kind of can the solid-phase extraction column of negative-pressure ward, comprise liquid storage bottle 1, adsorption stuffing post 2 and receiving flask 3; Described liquid storage bottle 1 is threaded with adopting between adsorption stuffing post 2, and described adsorption stuffing post 2 is threaded with adopting between receiving flask 3;
Described liquid storage bottle 1 comprises liquid storage bottle scale portion 1-1, filter 1-2 and liquid storage bottle external thread part 1-3;
Described liquid storage bottle 1 is conical flask body, the liquid storage bottle external thread part 1-3 for being threaded with adsorption stuffing post 2 is provided with in the lower end of liquid storage bottle 1, being carved with the liquid storage bottle scale portion 1-1 for characterizing liquid volume in liquid storage bottle 1 on liquid storage bottle 1 bottle surface, being provided with filter 1-2 at liquid storage bottle 1 inner bottom part;
Described adsorption stuffing post 2 comprises filled column internal thread part 2-1, packing layer 2-2, Pressure gauge 2-3, vacuum filtration pipe 2-4, filled column external thread part 2-5, header 2-6, pressure valve 2-7 and vacuum chamber portion 2-8;
Be provided with the filled column internal thread part 2-1 for being threaded with the liquid storage bottle external thread part 1-3 of liquid storage bottle 1 in the upper end of adsorption stuffing post 2, in adsorption stuffing post 2, lower end is provided with packing layer 2-2; Header 2-6 is provided with in the bottom of adsorption stuffing post 2, described header 2-6 and the inner space of adsorption stuffing post 2, be provided with outside header 2-6, bottom adsorption stuffing post 2 and vacuum chamber portion 2-8 is set, described 2-8 top, vacuum chamber portion is connected with the housing seal of adsorption stuffing post 2, when adsorption stuffing post 2 is threaded with receiving flask 3, vacuum chamber portion 2-8 is communicated with receiving flask 3; Filled column external thread part 2-5 is provided with at the bottom outer surface of vacuum chamber portion 2-8, for being threaded between adsorption stuffing post 2 with receiving flask 3, above filled column external thread part 2-5, on the sidewall of vacuum chamber portion 2-8, be provided with vacuum filtration pipe 2-4, vacuum filtration pipe 2-4 is provided with Pressure gauge 2-3 and pressure valve 2-7;
Described receiving flask 3 comprises receiving flask external thread part 3-1 and receiving flask scale portion 3-2, being provided with the receiving flask external thread part 3-1 for being threaded with the filled column external thread part 2-5 of adsorption stuffing post 2 in the upper end of receiving flask 3, being carved with the receiving flask scale portion 3-2 for characterizing liquid volume in receiving flask 3 on receiving flask 3 bottle surface;
Described adsorption stuffing post 2 is communicated with by header 2-6 with receiving flask 3.
Fig. 1 is can the liquid storage bottle structural representation of solid-phase extraction column of negative-pressure ward described in detailed description of the invention one; In figure, 1 is liquid storage bottle, and 1-1 is liquid storage bottle scale portion, and 1-2 is filter 1-2,1-3 is liquid storage bottle external thread part.
Fig. 2 is can the adsorption stuffing rod structure schematic diagram of solid-phase extraction column of negative-pressure ward described in detailed description of the invention one; In figure, 2 is adsorption stuffing post, and 2-1 is filled column internal thread part, and 2-2 is packing layer, and 2-3 is Pressure gauge, and 2-4 is vacuum filtration pipe, and 2-5 is filled column external thread part, and 2-6 is header, and 2-7 is pressure valve, and 2-8 is vacuum chamber portion.
Fig. 3 is can the receiving flask structural representation of solid-phase extraction column of negative-pressure ward described in detailed description of the invention one; In figure, 3 be receiving flask 3,3-1 be receiving flask external thread part 3-1,3-2 is receiving flask scale portion.
The filler that packing layer 2-2 described in present embodiment uses is C18, Florey tripoli, acidic alumina and other kind fillers.
Present embodiment provide a kind of can the solid-phase extraction column of negative-pressure ward, structure is simple, eliminates solid-phase extraction device.Solid-phase extraction column is connected with vavuum pump, under vacuum pressure effect, complete solid phase extraction procedure, reaches the effect of sample separation, enrichment, extraction.And rate of extraction is fast, at the uniform velocity extract, required solvent obviously reduces.Due to adsorption stuffing post and fluid reservoir, receiving flask three is detachable and reuse.Therefore, the utility model optimizes solid-phase extraction device and simplifies SPE step, and volume is little, practical, is easy to carry.
Present embodiment provide can the solid-phase extraction column applicability of negative-pressure ward strong, the whole device of setting up of more convenient sample-pretreating method adopts Split type movable to connect, and facilitates the cleaning of whole device and reusing again; Simultaneously can need to select different pressure according to actual sample process, can meet to greatest extent analytical work person in sample separation purge process to new method, New Terms set up demand.Relatively existing commercial band die pressing type solid-phase extraction device is expensive, use complicated operation, auxiliary device is many, this solid-phase extraction column installation cost is cheap, the utility model have employed the standing vavuum pump of common lab to realize whole solid phase extraction procedure, without the need to buying corresponding equipment again, makes method simple, being more convenient for practical operation, gas-chromatography can being delivered to by extracting the sample obtained---mass spectrum is used in conjunction instrument (GS-MS) and detects.The demand of all kinds of laboratory and field sampling preservation can be met, be easy to spread.
Detailed description of the invention two: the difference of present embodiment and detailed description of the invention one is: described filter 1-2 with screen pack upper filter membrane under be formed by stacking.Other are identical with detailed description of the invention one.
Screen pack described in present embodiment is stainless steel filter screen.
Filter membrane described in present embodiment is microfiltration membranes, milipore filter or nano filter membrane.
Detailed description of the invention three: one of present embodiment and detailed description of the invention one or two difference is: described liquid storage bottle external thread part 1-3 top is provided with seal washer.Other are identical with detailed description of the invention one or two.
Seal washer described in present embodiment is rubber o-ring.
Detailed description of the invention four: one of present embodiment and detailed description of the invention one to three difference is: described filled column internal thread part 2-1 top is provided with seal washer.Other are identical with detailed description of the invention one to three.
Seal washer described in present embodiment is rubber o-ring.
Detailed description of the invention five: one of present embodiment and detailed description of the invention one to four difference is: described filled column external thread part 2-5 top is provided with seal washer.Other are identical with detailed description of the invention one to four.
Seal washer described in present embodiment is rubber o-ring.
Detailed description of the invention six: one of present embodiment and detailed description of the invention one to five difference is: described receiving flask 3 is cylindrical bottle body.Other are identical with detailed description of the invention one to five.
Cylindrical bottle body described in present embodiment adopts polytetrafluoroethylene (PTFE) or glass material to obtain.
Detailed description of the invention seven: one of present embodiment and detailed description of the invention one to six difference is: described receiving flask external thread part 3-1 top is provided with seal washer.Other are identical with detailed description of the invention one to six.
Seal washer described in present embodiment is rubber o-ring.
Content of the present invention is not limited only to the content of the respective embodiments described above, and the combination of one of them or several detailed description of the invention equally also can realize the object of inventing.
Adopt following verification experimental verification effect of the present invention
Embodiment 1: a kind of can the solid-phase extraction column of negative-pressure ward, comprise liquid storage bottle 1, adsorption stuffing post 2 and receiving flask 3; Described liquid storage bottle 1 is threaded with adopting between adsorption stuffing post 2, and described adsorption stuffing post 2 is threaded with adopting between receiving flask 3;
Described liquid storage bottle 1 comprises liquid storage bottle scale portion 1-1, filter 1-2 and liquid storage bottle external thread part 1-3;
Described liquid storage bottle 1 is conical flask body, the liquid storage bottle external thread part 1-3 for being threaded with adsorption stuffing post 2 is provided with in the lower end of liquid storage bottle 1, being carved with the liquid storage bottle scale portion 1-1 for characterizing liquid volume in liquid storage bottle 1 on liquid storage bottle 1 bottle surface, being provided with filter 1-2 at liquid storage bottle 1 inner bottom part;
Described adsorption stuffing post 2 comprises filled column internal thread part 2-1, packing layer 2-2, Pressure gauge 2-3, vacuum filtration pipe 2-4, filled column external thread part 2-5, header 2-6, pressure valve 2-7 and vacuum chamber portion 2-8;
Be provided with the filled column internal thread part 2-1 for being threaded with the liquid storage bottle external thread part 1-3 of liquid storage bottle 1 in the upper end of adsorption stuffing post 2, in adsorption stuffing post 2, lower end is provided with packing layer 2-2; Header 2-6 is provided with in the bottom of adsorption stuffing post 2, described header 2-6 and the inner space of adsorption stuffing post 2, be provided with outside header 2-6, bottom adsorption stuffing post 2 and vacuum chamber portion 2-8 is set, described 2-8 top, vacuum chamber portion is connected with the housing seal of adsorption stuffing post 2, when adsorption stuffing post 2 is threaded with receiving flask 3, vacuum chamber portion 2-8 is communicated with receiving flask 3; Filled column external thread part 2-5 is provided with at the bottom outer surface of vacuum chamber portion 2-8, for being threaded between adsorption stuffing post 2 with receiving flask 3, above filled column external thread part 2-5, on the sidewall of vacuum chamber portion 2-8, be provided with vacuum filtration pipe 2-4, vacuum filtration pipe 2-4 is provided with Pressure gauge 2-3 and pressure valve 2-7;
Described receiving flask 3 comprises receiving flask external thread part 3-1 and receiving flask scale portion 3-2, being provided with the receiving flask external thread part 3-1 for being threaded with the filled column external thread part 2-5 of adsorption stuffing post 2 in the upper end of receiving flask 3, being carved with the receiving flask scale portion 3-2 for characterizing liquid volume in receiving flask 3 on receiving flask 3 bottle surface;
Described adsorption stuffing post 2 is communicated with by header 2-6 with receiving flask 3.
The filler that packing layer 2-2 described in the present embodiment uses is C18.
Filter 1-2 described in the present embodiment with screen pack upper filter membrane under be formed by stacking; Described screen pack is stainless steel filter screen; Described filter membrane is microfiltration membranes.
Liquid storage bottle external thread part 1-3 top described in the present embodiment is provided with seal washer; Described seal washer is rubber o-ring.
Filled column internal thread part 2-1 top described in the present embodiment is provided with seal washer; Described seal washer is rubber o-ring.
Filled column external thread part 2-5 top described in the present embodiment is provided with seal washer; Described seal washer is rubber o-ring.
Receiving flask 3 described in the present embodiment is cylindrical bottle body; Described cylindrical bottle body adopts polytetrafluoroethylene (PTFE) to obtain.
Receiving flask external thread part 3-1 top described in the present embodiment is provided with seal washer; Described seal washer is rubber o-ring.
Claims (7)
1. can the solid-phase extraction column of negative-pressure ward, it is characterized in that a kind ofly the solid-phase extraction column of negative-pressure ward to comprise liquid storage bottle (1), adsorption stuffing post (2) and receiving flask (3); Described liquid storage bottle (1) is threaded with adopting between adsorption stuffing post (2), and described adsorption stuffing post (2) is threaded with adopting between receiving flask (3);
Described liquid storage bottle (1) comprises liquid storage bottle scale portion (1-1), filter (1-2) and liquid storage bottle external thread part (1-3);
Described liquid storage bottle (1) is conical flask body, the liquid storage bottle external thread part (1-3) for being threaded with adsorption stuffing post (2) is provided with in the lower end of liquid storage bottle (1), being carved with the liquid storage bottle scale portion (1-1) for characterizing liquid volume in liquid storage bottle (1) on liquid storage bottle (1) bottle surface, being provided with filter (1-2) at liquid storage bottle (1) inner bottom part;
Described adsorption stuffing post (2) comprises filled column internal thread part (2-1), packing layer (2-2), Pressure gauge (2-3), vacuum filtration pipe (2-4), filled column external thread part (2-5), header (2-6), pressure valve (2-7) and vacuum chamber portion (2-8);
Be provided with the filled column internal thread part (2-1) for being threaded with the liquid storage bottle external thread part (1-3) of liquid storage bottle (1) in the upper end of adsorption stuffing post (2), in adsorption stuffing post (2), lower end is provided with packing layer (2-2); Header (2-6) is provided with in the bottom of adsorption stuffing post (2), the inner space of described header (2-6) and adsorption stuffing post (2), at header (2-6) outward, adsorption stuffing post (2) bottom is provided with and arranges vacuum chamber portion (2-8), described vacuum chamber portion (2-8) top is connected with the housing seal of adsorption stuffing post (2), when adsorption stuffing post (2) is threaded with receiving flask (3), vacuum chamber portion (2-8) is communicated with receiving flask (3); Filled column external thread part (2-5) is provided with at the bottom outer surface of vacuum chamber portion (2-8), for being threaded between adsorption stuffing post (2) with receiving flask (3), the sidewall of filled column external thread part (2-5) top, vacuum chamber portion (2-8) is provided with vacuum filtration pipe (2-4), vacuum filtration pipe (2-4) is provided with Pressure gauge (2-3) and pressure valve (2-7);
Described receiving flask (3) comprises receiving flask external thread part (3-1) and receiving flask scale portion (3-2), being provided with the receiving flask external thread part (3-1) for being threaded with the filled column external thread part (2-5) of adsorption stuffing post (2) in the upper end of receiving flask (3), being carved with the receiving flask scale portion (3-2) for characterizing liquid volume in receiving flask (3) on receiving flask (3) bottle surface;
Described adsorption stuffing post (2) is communicated with by header (2-6) with receiving flask (3).
2. according to claim 1 a kind of can the solid-phase extraction column of negative-pressure ward, it is characterized in that described filter (1-2) with screen pack upper filter membrane under be formed by stacking.
3. according to claim 1 a kind of can the solid-phase extraction column of negative-pressure ward, it is characterized in that described liquid storage bottle external thread part (1-3) top is provided with seal washer.
4. according to claim 1 a kind of can the solid-phase extraction column of negative-pressure ward, it is characterized in that described filled column internal thread part (2-1) top is provided with seal washer.
5. according to claim 1 a kind of can the solid-phase extraction column of negative-pressure ward, it is characterized in that described filled column external thread part (2-5) top is provided with seal washer.
6. according to claim 1 a kind of can the solid-phase extraction column of negative-pressure ward, it is characterized in that described receiving flask (3) is cylindrical bottle body.
7. according to claim 1 a kind of can the solid-phase extraction column of negative-pressure ward, it is characterized in that described receiving flask external thread part (3-1) top is provided with seal washer.
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| CN201520910946.1U CN205095461U (en) | 2015-11-13 | 2015-11-13 | But solid -phase extraction post of negative pressure suction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251238A (en) * | 2015-11-13 | 2016-01-20 | 黑龙江省科学院科技孵化中心 | Solid phase extraction column capable of achieving negative pressure suction and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251238A (en) * | 2015-11-13 | 2016-01-20 | 黑龙江省科学院科技孵化中心 | Solid phase extraction column capable of achieving negative pressure suction and using method |
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Effective date of registration: 20190823 Address after: 150027 Heilongjiang city of Harbin province Songbei pine village nursery building first Tun Town of Songhua River Patentee after: Heilongjiang Energy Environment Institute Address before: 150090, B, building 8, building 7, No. 15, Songshan Road, Nangang District, Harbin, Heilongjiang Patentee before: Technical Hatcher Center, Heilongjiang Academy of Sciences |