CN106706944B - A kind of multichannel sample introduction needle and its application in CODMn analyzer - Google Patents
A kind of multichannel sample introduction needle and its application in CODMn analyzer Download PDFInfo
- Publication number
- CN106706944B CN106706944B CN201610908336.7A CN201610908336A CN106706944B CN 106706944 B CN106706944 B CN 106706944B CN 201610908336 A CN201610908336 A CN 201610908336A CN 106706944 B CN106706944 B CN 106706944B
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- Prior art keywords
- sample introduction
- sample
- multichannel
- reagent
- introduction needle
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1009—Characterised by arrangements for controlling the aspiration or dispense of liquids
- G01N35/1011—Control of the position or alignment of the transfer device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1065—Multiple transfer devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1065—Multiple transfer devices
- G01N35/1072—Multiple transfer devices with provision for selective pipetting of individual channels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N2035/00178—Special arrangements of analysers
- G01N2035/00277—Special precautions to avoid contamination (e.g. enclosures, glove- boxes, sealed sample carriers, disposal of contaminated material)
Abstract
The present invention provides a kind of multichannel sample introduction needles, it is characterised in that: is made of multichannel sample introduction needle ontology and more than one channel；The multichannel sample introduction needle ontology is made of at least one disengaging sample portion and at least one reagent sample introduction portion；It is equipped in the disengaging sample portion, it can the longitudinally through entire channel for passing in and out sample portion；The reagent sample introduction is equipped in portion, can longitudinally through entire reagent sample introduction portion channel；It is mutually indepedent between each channel.The present invention provides such a multichannel needle device, the injection of plurality of reagents and the extraction of solution can be completed at the same time, and by being used in conjunction with circulation equipment, realize continuous sample-adding in analysis instrument, reagent adding, sampling function.
Description
Technical field
The present invention provides a kind of chemical analysis instruments, and in particular, to a kind of multichannel sample introduction needle and its at CODMn points
Application in analyzer.
Background technique
In some analysis instruments in use, need simultaneously or sequentially to inject plurality of reagents to reaction flask, and reacting
After extract solution analyzed.Such as: permanganate indices analyzer.In the existing method, often using craft
The detection and analysis that corresponding analysis instrument carries out the indexes such as target absorbance is injected after completing reaction outside instrument.
In order to realize the injection procedure of automation, at the beginning of research, the note for realizing reagent is realized using single channel needle
Enter the taking-up with sample, so, there are following multiple problems using the equipment into research discovery:
One, each reagent need the entrance single channel of timesharing, and elapsed time is longer, and only can be carried out the inspection of unique instance
It surveys, causes the example reaction to terminate to before completing analysis, it is to be processed which must all do etc., when can not effectively utilize
Between, and then efficiency can not still improve.
Secondly, in the equipment of the structure qualification, due to being implanted sequentially different reagent solutions in same pipeline, due to
Various solvents it is miscible, the problem of not only causing cleaning difficult, and be extremely easy to produce cross contamination between reagent, and then direct shadow
Ring the accuracy of experimental result.
Thirdly, in the equipment of the structure qualification, due in same pipeline, that is, realize disengaging sample, and realize into examination
The process of agent, it is unavoidable to make the sample to be tested by reagent remaining in pipeline etc. during it exports test sample
Substance pollution, and then lead to the inaccuracy of result.
Four, due to being related to the disengaging problem of multiple reagents and sample, flow path handover control system therebetween is extremely complex,
And gone the case where needing repairing occurs in a certain pipeline or depth is cleaned, it is easy to be arranged due to complicated pipeline, causes pipeline
Problem difficult in maintenance.
Summary of the invention
The present invention aims to overcome the above drawbacks, provide a kind of avoidable cross contamination, can be achieved automatic sampling complete it is a variety of
The injection of reagent and extraction, the multichannel needle device high-efficient simultaneously of solution.
A kind of multichannel sample introduction needle provided by the invention, it is characterised in that: by multichannel sample introduction needle ontology and more than one
Channel composition；
The multichannel sample introduction needle ontology is arbitrary geometric configuration, the packing that can be integrally formed or can be assembled and dismantle
Structure.
Above-mentioned multichannel sample introduction needle ontology is made of at least one disengaging sample portion and at least one reagent sample introduction portion；The composition
Mode can be any arrangement mode, modes of preferably several reagent sample introductions portion around one or more disengaging sample portions；
Or sample portion concentrated setting will be passed in and out in side, reagent sample introduction portion's concentrated setting is in the mode of the other side.
Above-mentioned disengaging sample is equipped in portion, can the longitudinally through entire channel for passing in and out sample portion；To realize fluid sample or
The circulation of gaseous sample.
Mentioned reagent sample introduction is equipped in portion, can longitudinally through entire reagent sample introduction portion channel；To realize that liquid tries
Agent or the circulation of gaseous reagent.
It is mutually indepedent between above-mentioned each channel.So will not occur since each reagent and sample are autonomous channel sample introduction
The problems such as cross contamination.And when a certain channel is broken down, direct Measuring error, without being carried out more to complete equipment
It changes.
Further, a kind of multichannel sample introduction needle provided by the invention, also has a structure in which feature: i.e., above-mentioned more
Channel sample introduction needle ontology is integrally formed structure after being combined by disengaging sample portion and reagent sample introduction portion；
Or above-mentioned multichannel sample introduction needle ontology is by any assembled structure in disengaging sample portion and reagent sample introduction portion.
Such as: disengaging sample portion is equipped with several card slots；Mentioned reagent sample introduction portion is equipped with buckle, the knot of above-mentioned card slot and buckle
Structure is mutually matched, and is able to achieve the assembling in disengaging sample portion and reagent sample introduction portion, the disengaging sample portion in card slot by that will be arranged in
On according to the specification of equipment can be as needed be provided with multiple notchs, during use, user can be according to detection
The needs of different product or the different analysis methods of application, are adjusted assembly to sample introduction and amount of reagent, realize personalized match
It sets.
Further, a kind of multichannel sample introduction needle provided by the invention, also has a structure in which feature: i.e., it is above-mentioned into
The length of sample portion longitudinal direction is greater than the length of any reagent sample introduction portion longitudinal direction out.To realize will not be polluted while sampling reagent into
The reagent in sample portion.
Further, a kind of multichannel sample introduction needle provided by the invention, also has a structure in which feature: i.e., it is above-mentioned into
Sample portion exceeds the part in reagent sample introduction portion out, and surface is fabricated by water-proof material.So that the surface in disengaging sample portion is not
It can residual sample or reagent etc..The water-proof material can be anti-/ water repellent coating or the surface of high smoothness etc..
Further, a kind of multichannel sample introduction needle provided by the invention, also has a structure in which feature: i.e., it is above-mentioned into
Sample portion and/or reagent sample introduction portion are telescopic structure out.The stretching structure can process control or Mechanical course, such as: when need
When inputting liquid by disengaging sample portion or reagent sample introduction portion, it is commanded the corresponding disengaging sample portion of input channel or the portion's meeting of reagent sample introduction
Auto-extending, when sample-adding finishes automatic retraction main part.
Further, a kind of multichannel sample introduction needle provided by the invention, also has a structure in which feature: i.e., it is above-mentioned into
Orientation liquid jet mechanism is equipped in sample portion and/or reagent sample introduction portion out.Such as: inside is equipped with the injection structure of pressure apparatus,
When needing to input liquid, by the effect of pressure, liquid moment is projected, avoids the residual of liquid and leaks.
And/or the end in above-mentioned disengaging sample portion and/or reagent sample introduction portion is equipped with conical jet head, so as to which liquid is concentrated
Output.
Further, a kind of multichannel sample introduction needle provided by the invention, also has a structure in which feature: i.e., above-mentioned each
At least one conduit is equipped in channel.For outputting and inputting for various liquid.
In addition, the present invention also provides a kind of multichannel sample injectors, it is characterised in that: including multichannel sample introduction needle as above
With telecontrol equipment (such as: polar coordinates locomotory apparatus can carry out the device of various dimensions rotation)；
Above-mentioned multichannel sample introduction needle is installed on the end of telecontrol equipment, is moved by the control of telecontrol equipment.
The telecontrol equipment is the device that the equipment such as sample introduction needle can be driven to be rotated or moved according to certain rules, the device
During use, it is circulated according to time beat, input/output sample or reagent；The time beat refers to every kind of reagent
Order of addition and interval time, such as: measurement permanganate indices analyzer in, be each sample feeding while
Addition acid and permanganate, add other reagents again after 30 minutes；And between 30 minutes, to other digestion tubes carry out sample and
Loading device is switched to initial digestion tube and carries out other by the addition work of reagent when reaching 30 minutes waiting time
The addition of reagent.And so on, when carrying out other kinds of analysis, when the order and rule for adding reagent change,
It is waited according to the characteristic of every kind of reagent in different analysis methods and residence time.User can be according to various sample tests
It needs that the time beat is set and adjusted.
Further, a kind of multichannel sample injector provided by the invention, also has a structure in which feature: i.e. above-mentioned pole is sat
Marking locomotory apparatus includes mechanical arm and drive motor；
The fixed end for being installed on mechanical arm of above-mentioned multichannel sample introduction needle；
Above-mentioned drive motor driving mechanical arm carries out the movement of various dimensions.Such as: lifting multi-pass after completing sample introduction or reagent
Road sample introduction needle, when sky waits or moves at next sample introduction；It when needing sample introduction or reagent, moves downward, by multichannel sample introduction needle
It protrudes into reaction vessel, carries out the addition of liquid.
In addition, the present invention also provides a kind of reaction systems applied in chemical analysis instrument, it is characterised in that: including
The multichannel sample injector and reaction tank of above structure；
Wherein, several reaction tubes are equipped in above-mentioned reaction tank；
Above-mentioned multichannel sample introduction needle circulates between reaction tube under the action of polar coordinates locomotory apparatus；
The system further includes fluid transport apparatus；Such as: peristaltic pump, air pump.
Aforesaid liquid transport device is installed on the end of each conduit, input or output liquid or gas.
The function and effect of the present invention:
The present invention provides such a multichannel needle devices, can be completed at the same time the injection of plurality of reagents and the pumping of solution
Take, and by being used in conjunction with circulation equipment, realize continuous sample-adding in analysis instrument, reagent adding, sampling function.
Specifically, device provided by the invention, one can will be physically separated between different reagent accesses, and reagent is avoided to intersect
Pollution, to improve precision of analysis.Secondly, reagent passage and sample intake passage controlled by length, to guarantee reagent passage
More than sample solution liquid level, reagent and sample solution is avoided to contact, to mutually pollute.Thirdly, the device of the invention pipeline
Control is simple, and injection reagent speed times several levels are promoted.
Detailed description of the invention
The structural schematic diagram of attached drawing 1, multichannel sample introduction needle provided in this embodiment；
The structural schematic diagram of attached drawing 2, multichannel sample introduction needle provided in this embodiment；
The structural schematic diagram of attached drawing 3, multichannel sample injector and reaction system provided in this embodiment；
The flow diagram of attached drawing 4, reaction system provided in this embodiment；
The structural schematic diagram of attached drawing 5, the multichannel sample injector that the present embodiment variation three provides and reaction system.
Specific embodiment
Multichannel sample introduction needle as shown in Figure 1, 2 is made of multichannel sample introduction needle ontology 100 and 5 channels；
The multichannel sample introduction needle ontology 100 constitutes reagent sample introduction portion 120 in short tube by 4, is in the disengaging of long tube around 1
The layout type in sample portion 110, integrated molding are fabricated, and external form is in the square boss configuration of one end protrusion, the portion of the protrusion
Position is cylindrical syringe (the i.e., one end to pass in and out sample portion 110), which can be by material resistant to chemical etching (such as: poly-
Tetrafluoroethene etc.) or metal material be fabricated.
Channel 210 equipped with longitudinally through entire disengaging sample portion 110 in the disengaging sample portion 110；
Be equipped in the reagent sample introduction portion 120 4 can longitudinally through entire reagent sample introduction portion 120 channel 220a, 220b,
220c,220d；The plurality of passages 120 are mutually independent between 220a, 220b, 220c, 220d.It is equipped in every channel
Acid and alkali-resistance, conduit resistant to chemical etching.
During use, sample is inputted or is exported out of disengaging sample portion 110 channel, the examination added in reaction process
Agent is inputted or is exported out of each reagent sample introduction portion 120 channel respectively, since the channel in disengaging sample portion 110 is longer than reagent sample introduction
Portion 120, so, at work, minute hand probes under liquid level, it is in the position of liquid level or more always for sampling or setting-out, hour hand,
Different reaction reagents is injected for section in different times.
Multichannel sample injector as shown in Figure 3 is made of polar coordinates telecontrol equipment and above-mentioned multichannel sample introduction needle, which sits
Marking telecontrol equipment includes that driving body 20 and swing arm 21 form；
The end of the swing arm 21 is equipped with multichannel sample introduction needle 10, and when driving body 20 to start, control is swung
Arm 21 is mobile along the direction of A-A ', and then multichannel sample introduction needle 10 is driven to be moved along the track.
When the sample injector is applied to sample feeding, as shown in figure 3, further including reaction tank 30, in the reaction tank 30
Several reaction tubes 31 are disposed with by what is lined up.When polar coordinates telecontrol equipment is by sample introduction order, in the top of each reaction tube 31
Circulation inputs each class I liquid I for each reaction tube 31.
As shown in figure 4, in order to which that realizes liquid outputs and inputs function, every conduit with corresponding reagent or sample
Storage facilities connection, end are equipped with sampling pump P1 (such as: peristaltic pump) equipment, for inputting the liquid in storage facilities
Or it is output in reaction tube.
In the present embodiment, channel C 1 (i.e., 220a) and reagent one are connected, and reagent one is pumped into reaction by sampling pump P1
In pipe；
Channel C 2 (i.e., 220b) and reagent two are connected, and reagent two is pumped into reaction tube by sampling pump P1；
Channel C 4 (i.e., 220c) and reagent three are connected, and reagent three is pumped into reaction tube by sampling pump P1；
Channel C 5 (i.e., 220d) and reagent four are connected, and reagent four is pumped into reaction tube by sampling pump P1；
All kinds of samples are pumped into reaction tube by 3 one side of channel C by sampling pump P1；On the other hand, sample introduction can also be passed through
Pump P1 pumps out the sample to be tested that all kinds of completions are reacted.
The sample introduction equipment that certain above-mentioned each process uses all can be independently arranged.
The variation one of the present embodiment,
In order to avoid the reagent of long pipe surface remains, several groove-like structures are disposed on long pipe surface.
The variation two of the present embodiment,
In order to avoid reagent is during sample introduction, long pipe surface is polluted.
In the present embodiment, all sample introductions/reagent end port can be also designed as to the nozzle moulding of cone.Or to stretch
Shrinking structure, ejecting structure etc..
The variation three of the present embodiment,
As shown in figure 5,3 one side of channel C is connected with sample storage facilities, all kinds of samples are pumped into instead by sampling pump P1
In should managing；On the other hand, the sample to be tested that all kinds of completions are reacted can be also pumped into detection device by sampling pump P2.The conduit
One can be shared or set up two separately.
Claims (10)
1. a kind of multichannel sample introduction needle, it is characterised in that: be made of multichannel sample introduction needle ontology and more than two channels；
The multichannel sample introduction needle ontology is made of at least one disengaging sample portion and at least one reagent sample introduction portion；
Being equipped in the disengaging sample portion can the longitudinally through entire channel for passing in and out sample portion；
Be equipped in reagent sample introduction portion can longitudinally through entire reagent sample introduction portion channel；
It is mutually indepedent between each channel.
2. a kind of multichannel sample introduction needle as described in claim 1, it is characterised in that:
The multichannel sample introduction needle ontology is integrally formed structure after being combined by disengaging sample portion and reagent sample introduction portion；
Or
The multichannel sample introduction needle ontology is by any assembled structure in disengaging sample portion and reagent sample introduction portion.
3. a kind of multichannel sample introduction needle as described in claim 1, it is characterised in that:
The length of the disengaging sample portion longitudinal direction is greater than the length of any reagent sample introduction portion longitudinal direction.
4. a kind of multichannel sample introduction needle as claimed in claim 2, it is characterised in that:
The disengaging sample portion exceeds the part in reagent sample introduction portion, and surface is fabricated by water-proof material.
5. a kind of multichannel sample introduction needle as described in claim 1, it is characterised in that:
The disengaging sample portion and/or reagent sample introduction portion are telescopic structure.
6. a kind of multichannel sample introduction needle as described in claim 1, it is characterised in that:
Orientation liquid jet mechanism is equipped in the disengaging sample portion and/or reagent sample introduction portion；
And/or
The end in the disengaging sample portion and/or reagent sample introduction portion is equipped with conical jet head.
7. a kind of multichannel sample introduction needle as described in claim 1, it is characterised in that:
At least one conduit is equipped in each channel.
8. a kind of multichannel sample injector, it is characterised in that: including multichannel sample introduction needle as claimed in claim 1 and fortune
Dynamic device；
The multichannel sample introduction needle is installed on the end of telecontrol equipment, is moved by the control of telecontrol equipment.
9. a kind of multichannel sample injector as claimed in claim 8, it is characterised in that:
The telecontrol equipment includes mechanical arm and drive motor；
The fixed end for being installed on mechanical arm of the multichannel sample introduction needle；
The drive motor driving mechanical arm carries out the movement of various dimensions.
10. a kind of reaction system applied in chemical analysis instrument, it is characterised in that: including as claimed in claim 8 or 9
Multichannel sample injector and reaction tank；
Wherein, several reaction tubes are equipped in the reaction tank；
The multichannel sample introduction needle circulates between reaction tube under the action of telecontrol equipment；
It further include fluid transport apparatus；
The fluid transport apparatus is installed on the end of each conduit, input or output liquid or gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908336.7A CN106706944B (en) | 2016-10-18 | 2016-10-18 | A kind of multichannel sample introduction needle and its application in CODMn analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610908336.7A CN106706944B (en) | 2016-10-18 | 2016-10-18 | A kind of multichannel sample introduction needle and its application in CODMn analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106706944A CN106706944A (en) | 2017-05-24 |
| CN106706944B true CN106706944B (en) | 2019-06-25 |
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ID=58940361
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610908336.7A Active CN106706944B (en) | 2016-10-18 | 2016-10-18 | A kind of multichannel sample introduction needle and its application in CODMn analyzer |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5512248A (en) * | 1993-11-23 | 1996-04-30 | Van; Jack F. J. | Twin-probe blood sample diluting device |
| CN202156912U (en) * | 2011-06-20 | 2012-03-07 | 泰州市苏京实验仪器科技有限公司 | Multi-channel liquid distributor |
| CN203208464U (en) * | 2013-04-15 | 2013-09-25 | 段安丽 | Two-cavity both-way injection needle device |
| CN204330436U (en) * | 2014-11-27 | 2015-05-13 | 嘉兴凯实生物科技有限公司 | A kind of fluorescence sheet stainer double needle mechanism automatically |
| CN206177978U (en) * | 2016-10-18 | 2017-05-17 | 上海北裕分析仪器股份有限公司 | Multichannel syringe , multichannel injector and reaction system in permanganate index analysis appearance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030013200A1 (en) * | 2001-07-12 | 2003-01-16 | Su-Cheng Pai | Liquid sample take-up device |
-
2016
- 2016-10-18 CN CN201610908336.7A patent/CN106706944B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5512248A (en) * | 1993-11-23 | 1996-04-30 | Van; Jack F. J. | Twin-probe blood sample diluting device |
| CN202156912U (en) * | 2011-06-20 | 2012-03-07 | 泰州市苏京实验仪器科技有限公司 | Multi-channel liquid distributor |
| CN203208464U (en) * | 2013-04-15 | 2013-09-25 | 段安丽 | Two-cavity both-way injection needle device |
| CN204330436U (en) * | 2014-11-27 | 2015-05-13 | 嘉兴凯实生物科技有限公司 | A kind of fluorescence sheet stainer double needle mechanism automatically |
| CN206177978U (en) * | 2016-10-18 | 2017-05-17 | 上海北裕分析仪器股份有限公司 | Multichannel syringe , multichannel injector and reaction system in permanganate index analysis appearance |
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| Publication number | Publication date |
|---|---|
| CN106706944A (en) | 2017-05-24 |
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