CN209570424U - Single step sample purification pipe - Google Patents
Single step sample purification pipe Download PDFInfo
- Publication number
- CN209570424U CN209570424U CN201920168171.3U CN201920168171U CN209570424U CN 209570424 U CN209570424 U CN 209570424U CN 201920168171 U CN201920168171 U CN 201920168171U CN 209570424 U CN209570424 U CN 209570424U
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- China
- Prior art keywords
- syringe
- plug
- push rod
- sieve plate
- single step
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Abstract
The utility model relates to a kind of single step sample purification pipe, including threaded plug, syringe, sample pre-treatments purification filler, deflector, porous sieve plate and with inertia rubber plug push rod；One end in syringe close to syringe needle is disposed with deflector, porous sieve plate, and sample pre-treatments are equipped between porous sieve plate and push rod and purify filler；Diameter cooperates the inertia glue of syringe internal diameter and push rod beyond the Great Wall；Sieve plate and water conservancy diversion board diameter are worked in coordination with syringe internal diameter, and purification filler is enclosed in syringe；Plug and syringe are threadedly coupled, and the outlet of the internal orifice and syringe of plug matches each other, and realize that Needle outlet is fully sealed in plug.After purification is completed, plug need to be only removed, syringe outlet connects syringe filter, push rod is released solution, examination with computer liquid can be obtained without centrifugation in filtering solution.
Description
Technical field
The utility model relates to the sample pre-treatments operating procedures and use device in analyte detection process, belong to analysisization
Field of sample preparation in.
Background field
In chemical analysis field, sample pre-treatments are examined very important one in detection process to target compound always
Ring.Statistical result shows in sample pre-treatments the step that Sample pretreatment occupies the considerable time, and some even can be with
Occupy the 70% of all times, it is even more；The time of half more how close than the detection and analysis of sample itself.Various new technologies and new
The exploration and research of method have become one of important topic and developing direction of contemporary analytical chemistry, quickly, simplicity, automate
Pretreatment technology it is not only time saving, laborsaving, but also can reduce due to different personnel operation and sample repeatedly shift bring
Error, while can be to avoid using a large amount of organic solvents and reduce pollution to environment.
In agricultural and veterinary chemicals residual and mycotoxin detection field, the Sample Pretreatment Technique of mainstream includes Solid Phase Extraction at present
(SPE pillar), gel permeation chromatography and the QuEChERS technology based on dispersive solid-phase extraction.Wherein SPE process needs repeatedly behaviour
To make (balance, loading, elution and elution etc.), sample penetrates readily through, and elution speed will control one by one, and it is cumbersome, and repeatability
It is not high.And gel permeation chromatography then needs expensive equipment, organic solvent usage amount is big, is difficult to push away in Routine Test Lab realization
Extensively.Although and QuEChERS technology is by the way of dispersed filler, the rate of recovery is high, and it is good to detect repeatability, still needs
Multiple operating procedure (pipette, be vortexed, being centrifuged, crossing film etc.), detection cycle is also longer.
The detection of edible agricultural product generally requires certain detection timeliness, need quickly to obtain as a result, to supervise,
Enterprise's purchasing of raw materials, performance rating provide data and support.Therefore laboratory needs to develop time saving and energy saving agricultural and veterinary chemicals residual and true
The Sample Pretreatment Technique of verticillium toxin meets quickly processing, the requirement of rapid screening.The operating procedure of sample pre-treatments is fewer,
The utensil used is fewer, as a result more accurate and reliable, and experimental cost is lower, and efficiency is higher.
Summary of the invention
For more, the cumbersome technical problem of the pre-treatment step of solution sample, the utility model provides single step sample
Product purification pipe, including threaded plug, syringe, sample pre-treatments purify filler, deflector, porous sieve plate and push away with inertia rubber plug
Bar；One end in syringe close to syringe needle is disposed with deflector, porous sieve plate, before being equipped with sample between porous sieve plate and push rod
Treatment and purification filler；Diameter cooperates the inertia glue of syringe internal diameter and push rod beyond the Great Wall；Sieve plate and water conservancy diversion board diameter and syringe internal diameter
It works in coordination, purification filler is enclosed in syringe；Plug and syringe are threadedly coupled, and the outlet of the internal orifice and syringe of plug is mutual
Matching realizes that Needle outlet is fully sealed in plug.
It further include syringe needle, the outlet interference fit of syringe needle and syringe.
Under sealing between plug, sieve plate and inertia rubber plug, purification filler be can be reserved in syringe.By push rod in syringe
Interior straight line moves back and forth, and can draw the sample extraction solution or discharge liquid of certain volume as needed.Pipette samples extract molten
After liquid, solution can be sealed in syringe by plug and inertia rubber plug, will purify filler by turbula shaker or other modes
It is sufficiently mixed with sample solution, achievees the purpose that purified solution.After purification is completed, plug only need to be removed, syringe syringe needle is taken over
Push rod is released solution by filter membrane, and examination with computer liquid can be obtained without centrifugation.
The inertia glue diameter mutual cooperation beyond the Great Wall of the syringe internal diameter and push rod of the single step sample purification pipe, forms good close
Envelope；Sieve plate and deflector outer diameter are worked in coordination with syringe internal diameter, and purification filler is enclosed in syringe；The screw thread and syringe of plug
Screw thread match each other, the outlet of the internal orifice and syringe of plug matches each other, realize plug Needle outlet is fully sealed；Needle
The outlet of head and syringe matches each other.
Band inertia rubber plug push rod in the single step sample purification pipe straight line can push and pull back and forth in syringe, can be as needed
Draw the sample solution or discharge liquid of certain volume.
The purification filler of the single step sample purification pipe is made of various adsorption stuffings by different proportion, mainly includes anhydrous
Magnesium sulfate, C18 bonded silica gel, amino bonded silica gel, PSA, ketjenblack EC etc..
Splendid sealing is formed between the plug of the single step sample purification pipe, syringe and the inertia rubber plug of push rod, is not prevented
Only purification filler makes moist, is rotten.Simultaneously syringe draw sample solution through plug and inertia rubber plug sealing can intense vortical vibrate,
Strengthen the absorption and purification of sample solution.
The syringe needle of the single step sample purification pipe, syringe, push rod and plug material can be PE, polytetrafluoroethylene (PTFE) or gold
Belong to, and does not adsorb or not other materials of jamming target compound.Single step sample purification pipe can be processed into as needed not
The syringe mode of same volume, typical overall volume have 3mL, 5mL and 10mL etc., as long as guaranteeing inertia glue clearance gauge cun, sieve plate ruler
It is very little to be matched with syringe internal diameter, plug and the matching of syringe syringe needle.The utility model using syringe pre-fill purify filler by the way of,
The mode for changing conventional disperse Solid Phase Extraction, operating procedure (the pipette samples solution, sealing solution, vortex oscillation, absorption by before
Purification, draws purified solution and filtering at high speed centrifugation) it is a step, it enormously simplifies agricultural and veterinary chemicals residual, mycotoxin and illegally adds
The operation link for adding all kinds of sample pre-treatments such as agent saves artificial, consumptive material consumption and equipment investment, detection method is made more may be used
It leans on, cost is lower, the working efficiency of very big Enhancement test room.
Detailed description of the invention
The overall schematic of Fig. 1 single step sample purification pipe
Status diagram before Fig. 2 single step sample purification pipe is unused
Schematic diagram when Fig. 3 single step sample purification pipe draw solution
1- screw plug；The internal orifice of 1B- plug；2- syringe needle；3- syringe；The outlet of 3B- syringe；The purification of 4- sample pre-treatments
Filler；5- porous sieve plate 6- deflector；7- push rod；7A- inertia rubber plug；7B- push rod impetus；
Specific embodiment
The utility model single step sample purification pipe is described in detail in 1-3 and specific embodiment with reference to the accompanying drawing.
Fig. 1 gives each block diagram of single step sample purification pipe.The syringe internal diameter of single step sample purification pipe omits
Less than the outer diameter of inertia rubber plug, inertia glue stopper forms excellent sealing after becoming；The outer diameter of sieve plate and deflector is slightly larger than syringe
Internal diameter, be enclosed in syringe by the deformation of sieve plate and deflector by filler is purified；The screw thread of plug and the screw thread of syringe are mutual
Match, the outlet of the internal orifice and syringe of plug matches each other, and realizes that Needle outlet is fully sealed in plug；Syringe needle and syringe
Outlet be threadedly engaged, sealing performance is splendid, be convenient for pipette samples extracting solution.
The utility model should follow following steps when specific operation:
Sample passes through the extraction of certain chemical reagent, and target compound is dissolved into sample solution.
The plug (as shown in Figure 2) in the utility model is removed, is installed syringe needle (such as Fig. 3), pipette samples extracting solution, is drawn
To keep syringe needle in sample solution liquid level hereinafter, drawing the sample solution of certain volume on demand in the process.Later by syringe needle court
On, remove syringe needle, installed plug.The syringe of entire carry sample solution and purification filler is vortexed mixing on vortex oscillation instrument
30s-60s, or shaking allows filler and extracting solution to be sufficiently mixed manually.
Upward by syringe mouth, remove Luer plug, syringe filter be installed, release respectively scavenging solution carry out solvent replacement or
The direct examination with computer of person.It is formed between the plug of the utility model single step sample purification pipe, syringe and the inertia rubber plug of push rod
Splendid sealing is not prevented from purification filler dampness, goes bad.The sample solution that syringe is drawn simultaneously is sealed through plug and inertia rubber plug
Intense vortical oscillation can be carried out, the absorption and purification of sample solution are strengthened.Purification filler can be the chemistry that can be sold on the market and inhale
The different proportion of any or a variety of filler of attached filler is constituted, and common filler includes anhydrous magnesium sulfate, C18 bonded silica
Glue, amino bonded silica gel, PSA, ketjenblack EC, neutral alumina, ion exchange resin etc., no longer illustrate one by one herein.This
The sealing means of utility model ensure that the long-time stability of product, this point is particularity not available for previous Related product
Energy.Material involved in the utility model single step sample purification pipe can be PE, polytetrafluoroethylene (PTFE) or metal, and not adsorb
Or not other materials of jamming target compound.
Claims (5)
1. single step sample purification pipe, including threaded plug (1), syringe (3), sample pre-treatments purify filler (4), porous sieve
Plate (5), deflector (6) and with inertia rubber plug push rod (7)；It is characterized by: one end in syringe close to syringe needle is disposed with
Deflector, porous sieve plate are equipped with sample pre-treatments and purify filler between porous sieve plate and push rod；Syringe (3) internal diameter and push rod (7)
Inertia rubber plug (7A) outer diameter cooperate；Sieve plate (5) and deflector (6) diameter are worked in coordination with syringe (3) internal diameter, will be purified
Filler (4) is enclosed in syringe (3)；Plug (1) and syringe (3) are threadedly coupled, the outlet of internal orifice (1B) and syringe of plug
(3B) matches each other, and realizes that Needle outlet is fully sealed in plug.
2. single step sample purification pipe according to claim 1, which is characterized in that further include syringe needle (2), syringe needle and syringe
Outlet (3B) interference fit.
3. single step sample purification pipe according to claim 1, which is characterized in that plug (1), syringe (3) and push rod (7)
Inertia rubber plug (7A) between formed sealing.
4. single step sample purification pipe according to claim 2, which is characterized in that syringe needle, syringe, push rod and plug material
Matter is not adsorb or the not material of jamming target compound.
5. single step sample purification pipe according to claim 4, which is characterized in that syringe needle, syringe, push rod and plug material
Matter is PE, polytetrafluoroethylene (PTFE) or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168171.3U CN209570424U (en) | 2019-01-31 | 2019-01-31 | Single step sample purification pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920168171.3U CN209570424U (en) | 2019-01-31 | 2019-01-31 | Single step sample purification pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209570424U true CN209570424U (en) | 2019-11-01 |
Family
ID=68333810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920168171.3U Expired - Fee Related CN209570424U (en) | 2019-01-31 | 2019-01-31 | Single step sample purification pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209570424U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111888796A (en) * | 2020-07-17 | 2020-11-06 | 中国水产科学研究院 | Reusable purification device |
| EP4357752A1 (en) * | 2022-10-20 | 2024-04-24 | Great Engineering Technology Corp. | Kit for extracting mycotoxin residues in agricultural products and method of obtaining primary test liquid from agricultural products using the same |
-
2019
- 2019-01-31 CN CN201920168171.3U patent/CN209570424U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111888796A (en) * | 2020-07-17 | 2020-11-06 | 中国水产科学研究院 | Reusable purification device |
| EP4357752A1 (en) * | 2022-10-20 | 2024-04-24 | Great Engineering Technology Corp. | Kit for extracting mycotoxin residues in agricultural products and method of obtaining primary test liquid from agricultural products using the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191101 Termination date: 20220131 |