CN106706944A - Multichannel sample injection needle and application thereof in CODMn analyzer - Google Patents
Multichannel sample injection needle and application thereof in CODMn analyzer Download PDFInfo
- Publication number
- CN106706944A CN106706944A CN201610908336.7A CN201610908336A CN106706944A CN 106706944 A CN106706944 A CN 106706944A CN 201610908336 A CN201610908336 A CN 201610908336A CN 106706944 A CN106706944 A CN 106706944A
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- CN
- China
- Prior art keywords
- sample introduction
- multichannel
- reagent
- sample
- introduction needle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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 invention provides a multichannel sample injection needle. The multichannel sample injection needle is characterized in that the multichannel sample injection needle consists of a multichannel sample injection needle body and one or more than one channel, wherein the multichannel sample injection needle body consists of at least one sample injection/extraction part and at least one reagent sample injection part; a channel which can longitudinally penetrate through the whole sample injection/extraction part is arranged in each sample injection/extraction part; a channel which can longitudinally penetrate through the whole reagent injection part is arranged in each reagent sample injection part; all the channels are independent of one another. The invention provides a multichannel needle device, which can finish injection and extraction of multiple reagents at the same time; the multichannel needle device is combined with transfer equipment, so that the functions of continuously adding samples, adding the reagents and extracting the samples in the analyzer are realized.
Description
Technical field
The invention provides a kind of chemical analysis instrument, in particular it relates to a kind of multichannel sample introduction needle and its at CODMn points
Application in analyzer.
Background technology
In some analytical instrument when using, need simultaneously or sequentially to inject plurality of reagents to reaction bulb, and in reaction
Solution is extracted after end to be analyzed.Such as：Permanganate indices analyzer etc..In existing method, often using craft
Injecting corresponding analytical instrument after completing reaction outside instrument carries out the detection and analysis of the indexes such as target absorbance.
In order to realize the injection procedure of automation, at the beginning of research, employ single channel pin to realize the note of reagent
Enter the taking-up with sample, so, enter research and find there are problems that following multiple using the equipment：
One, each reagent need the entrance single channel of timesharing, and its elapsed time is more long, and are only capable of carrying out the inspection of unique instance
Survey, cause the example reaction to terminate to before completing analysis, it is pending that the sample introduction equipment must all be done etc., it is impossible to when effectively utilizing
Between, and then efficiency cannot still improve.
Secondly, in the equipment of the structure qualification, due in same pipeline, being implanted sequentially different reagent solutions, due to
Various solvents it is miscible, not only cause cleaning difficult, and the problem of cross pollution, and then directly shadow are extremely easily produced between reagent
Ring the accuracy of experimental result.
Thirdly, in the equipment of the structure qualification, due in same pipeline, that is, realize turnover sample, realize again into examination
The process of agent, during its output detection sample, it is impossible to which what is avoided makes the testing sample by reagent of residual in pipeline etc.
Substances Pollution, and then cause the inaccurate of result.
Four, due to being related to multiple reagents and sample to enter to go wrong, stream handover control system therebetween is extremely complex,
And when the situation that needing repairing or depth is cleaned occurs in a certain pipeline is gone, be easy to be set due to complicated pipeline, cause pipeline
Problem difficult in maintenance.
The content of the invention
It is contemplated that overcoming drawbacks described above, there is provided one kind can avoid cross pollution, achievable auto injection from completing various
The injection of reagent and the extraction of solution, while the multichannel needle device of efficiency high.
A kind of multichannel sample introduction needle that the present invention is provided, it is characterised in that：By multichannel sample introduction needle body and more than one
Passage composition；
The multichannel sample introduction needle body is arbitrary geometric configuration, the packing that can be formed in one or can be assembled and dismantle
Structure.
Above-mentioned multichannel sample introduction needle body is made up of at least one turnover sample portion and at least one reagent sample introduction portion；The composition
Mode can be any arrangement mode, mode of the preferably several reagent sample introduction portion around one or more turnover sample portions；
Or sample portion's concentrated setting will be passed in and out in side, reagent sample introduction portion's concentrated setting is in the mode of opposite side.
It is equipped with above-mentioned turnover sample portion, can the longitudinally through whole passage for passing in and out sample portion；So as to realize fluid sample or
The circulation of gaseous sample.
Mentioned reagent sample introduction is equipped with portion, can longitudinally through whole reagent sample introduction portion passage；So as to realize that liquid is tried
Agent or the circulation of gaseous reagent.
It is separate between above-mentioned each passage.So, because each reagent and sample are autonomous channel sample introduction, will not occur
The problems such as cross pollution.And when a certain passage breaks down, direct detection maintenance, without being carried out more to complete equipment
Change.
Further, a kind of multichannel sample introduction needle that the present invention is provided, also has a structure in which feature：I.e., it is above-mentioned many
Passage sample introduction needle body is integrally formed structure after being combined by turnover sample portion and reagent sample introduction portion；
Or above-mentioned multichannel sample introduction needle body is by any assembled structure in turnover sample portion and reagent sample introduction portion.
Such as：Turnover sample portion is provided with some draw-in grooves；Mentioned reagent sample introduction portion is provided with the knot of buckle, above-mentioned draw-in groove and buckle
Structure is mutually matched, and the assembling that draw-in groove interior energy realizes turnover sample portion and reagent sample introduction portion, the turnover sample portion are arranged in by by buckle
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 need for different product or the different analysis methods of application, assembling is adjusted to sample introduction and amount of reagent, realizes personalized matching somebody with somebody
Put.
Further, a kind of multichannel sample introduction needle that the present invention is provided, also has a structure in which feature：I.e., it is above-mentioned enter
Go out the length of the length more than any reagent sample introduction portion longitudinal direction of sample portion longitudinal direction.So as to realize that will not pollute reagent while sampling enters
The reagent in sample portion.
Further, a kind of multichannel sample introduction needle that the present invention is provided, also has a structure in which feature：I.e., it is above-mentioned enter
Go out part of the sample portion beyond reagent sample introduction portion, its surface is fabricated by by water-proof material.So that the surface in turnover sample portion is not
Meeting residual sample or reagent etc..The water-proof material can be surface of anti-/ water repellent coating or smoothness high etc..
Further, a kind of multichannel sample introduction needle that the present invention is provided, also has a structure in which feature：I.e., it is above-mentioned enter
It is telescopic structure to go out sample portion and/or reagent sample introduction portion.The stretching structure can programme-control or Mechanical course, for example：When need
During by passing in and out sample portion or reagent sample introduction portion's infusion fluid, corresponding turnover sample portion or the portion's meeting of reagent sample introduction of input channel is commanded
Auto-extending, when sample-adding finishes automatic retraction main part.
Further, a kind of multichannel sample introduction needle that the present invention is provided, also has a structure in which feature：I.e., it is above-mentioned enter
Go out in sample portion and/or reagent sample introduction portion and be provided with orientation liquid jet mechanism.Such as：Inside is provided with the injection structure of pressure apparatus,
When needing infusion fluid, by the effect of pressure, liquid moment is projected, it is to avoid the residual of liquid and leak.
And/or the end in above-mentioned turnover sample portion and/or reagent sample introduction portion is provided with conical jet head, so as to liquid is concentrated
Output.
Further, a kind of multichannel sample introduction needle that the present invention is provided, also has a structure in which feature：I.e., it is above-mentioned each
At least one conduit is equipped with passage.For the input and output of various liquid.
In addition, present invention also offers a kind of multichannel injector, it is characterised in that：Including multichannel sample introduction needle as above
With telecontrol equipment (such as：Polar coordinates locomotory apparatus etc. 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 according to certain rules or moved, the device
During use, circulated according to time beat, input/output sample or reagent；The time beat refers to every kind of reagent
Order of addition and interlude, for example：In the analyzer for determining permanganate indices, while being each sample feeding
Addition acid and permanganate, add other reagents again after 30 minutes；And between 30 minutes, other digestion tubes are carried out sample and
The addition work of reagent, when the stand-by period of 30 minutes is reached, loading device is switched into initial digestion tube carries out other
The addition of reagent.By that analogy, when other kinds of analysis is carried out, when the order and rule for adding reagent change,
Waited according to the characteristic of every kind of reagent and residence time in different analysis methods.User can be according to various sample tests
Needs are set and are adjusted to the time beat.
Further, a kind of multichannel injector that the present invention is provided, also has a structure in which feature：I.e. above-mentioned pole is sat
Mark locomotory apparatus includes mechanical arm and drive motor；
The end for being installed on mechanical arm that above-mentioned multichannel sample introduction needle is fixed；
Above-mentioned drive motor mechanical arm carries out the motion of various dimensions.Such as：Lift after completion sample introduction or reagent and lead to more
Road sample introduction needle, when sky is waited or is moved at next sample introduction；When needing sample introduction or reagent, move downward, by multichannel sample introduction needle
Stretch into reaction vessel, carry out the addition of liquid.
Additionally, present invention also offers a kind of reaction system being applied in chemical analysis instrument, it is characterised in that：Including
The multichannel injector and reaction tank of said structure；
Wherein, some reaction tubes are provided with above-mentioned reaction tank；
Above-mentioned multichannel sample introduction needle circulates in the presence of polar coordinates locomotory apparatus between reaction tube；
The system also includes fluid transport apparatus；Such as：Peristaltic pump, air pump etc..
Aforesaid liquid conveying arrangement is installed on the end of each conduit, input or output liquid or gas.
Effect of the invention and effect：
The invention provides such a multichannel needle device, the injection of plurality of reagents and taking out for solution can be simultaneously completed
Take, and be used in conjunction by with circulation equipment, realize continuous sample-adding, reagent adding, the function of sampling in analytical instrument.
Specifically, the device that the present invention is provided, one, will can be physically separated between different reagent paths, it is to avoid reagent intersects
Pollution, so as to improve precision of analysis.Secondly, reagent passage and sample intake passage by length control, so as to ensure reagent passage
More than sample solution liquid level, it is to avoid reagent and sample solution are contacted, so as to mutually pollute.Thirdly, device pipeline of the invention
Control is simple, the several levels lifting of injection reagent speed times.
Brief description of the drawings
The structural representation of the multichannel sample introduction needle that accompanying drawing 1, the present embodiment is provided；
The structural representation of the multichannel sample introduction needle that accompanying drawing 2, the present embodiment is provided；
Multichannel injector and the structural representation of reaction system that accompanying drawing 3, the present embodiment is provided；
The schematic flow sheet of the reaction system that accompanying drawing 4, the present embodiment is provided；
Multichannel injector and the structural representation of reaction system that accompanying drawing 5, the present embodiment variation three are provided.
Specific embodiment
Multichannel sample introduction needle as shown in Figure 1, 2, is made up of multichannel sample introduction needle body 100 and 5 passages；
The multichannel sample introduction needle body 100 constitutes reagent sample introduction portion 120 by 4 in short tube, around 1 turnover in long tube
The layout type in sample portion 110, is integrally formed and is fabricated by, and its external form is in the raised square boss configuration in one end, the raised portion
Position is the syringe (i.e., being the one end in turnover sample portion 110) of cylinder, and the body can be by material resistant to chemical etching (such as：It is poly-
Tetrafluoroethene etc.) or metal material be fabricated by.
The passage 210 in longitudinally through whole turnover sample portion 110 is provided with the turnover sample portion 110；
Be provided with the reagent sample introduction portion 120 4 can the passage 220a in longitudinally through whole reagent sample introduction portion 120,220b,
220c、220d；The plurality of passages 120, it is mutually independent between 220a, 220b, 220c, 220d.It is equipped with every passage
Acid and alkali-resistance, conduit resistant to chemical etching.
During use, sample is from input in the passage in turnover sample portion 110 or exports, the examination added in course of reaction
Agent is input into or exports from the passage in each reagent sample introduction portion 120 respectively, because the passage in turnover sample portion 110 is longer than reagent sample introduction
Portion 120, so, operationally, minute hand is probeed under liquid level, for sampling or setting-out, hour hand position all the time more than liquid level,
For injecting different reaction reagents in the different time periods.
Multichannel injector as shown in Figure 3, is made up of polar coordinates telecontrol equipment and above-mentioned multichannel sample introduction needle, and the pole is sat
Mark telecontrol equipment includes driving body 20 and swing arm 21 to constitute；
The end of the swing arm 21 is provided with multichannel sample introduction needle 10, and when driving body 20 to start, control swings
Arm 21 is moved along the direction of A-A ', and then drives multichannel sample introduction needle 10 to be moved along the track.
When the injector is applied into sample feeding, as shown in figure 3, also include reaction tank 30, in the reaction tank 30
Some reaction tubes 31 are disposed with by what is lined up.When polar coordinates telecontrol equipment is subject to sample introduction order, in the top of each reaction tube 31
Circulation, is that each reaction tube 31 is input into each class I liquid I.
As shown in figure 4, input and output function in order to realize liquid, every conduit with corresponding reagent or sample
Storage facilities is connected, and its end is equipped with sampling pump P1 (such as：Peristaltic pump) etc. equipment, for by storage facilities liquid input
Or export in reaction tube.
In the present embodiment, channel C 1 (i.e., 220a) is turned on reagent one, and reagent one is pumped into reaction by sampling pump P1
In pipe；
Channel C 2 (i.e., 220b) is turned on reagent two, is pumped into reaction tube reagent two by sampling pump P1；
Channel C 4 (i.e., 220c) is turned on reagent three, is pumped into reaction tube reagent three by sampling pump P1；
Channel C 5 (i.e., 220d) is turned on reagent four, is pumped into reaction tube reagent four by sampling pump P1；
The one side of channel C 3 is pumped into reaction tube all kinds of samples by sampling pump P1；On the other hand, can also be by sample introduction
Pump P1 pumps out the testing sample that all kinds of completions are reacted.
The sample introduction equipment that certain above-mentioned each process is used can be to be independently arranged.
The variation one of the present embodiment,
In order to avoid the reagent of long pipe surface is remained, some groove-like structures are disposed with 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, the port at all sample introductions/reagent end can be also designed as 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, the one side of channel C 3 is turned on sample storage facilities, all kinds of samples are pumped into instead by sampling pump P1
In should managing；On the other hand, the testing sample that all kinds of completions are reacted can be also pumped into testing equipment 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：It is made up of multichannel sample introduction needle body and more than one passage；
The multichannel sample introduction needle body is made up of at least one turnover sample portion and at least one reagent sample introduction portion；
Being equipped with the turnover sample portion can the longitudinally through whole passage for passing in and out sample portion；
Be equipped with the reagent sample introduction portion can longitudinally through whole reagent sample introduction portion passage；
It is separate between each passage.
2. a kind of multichannel sample introduction needle as claimed in claim 1, it is characterised in that：
The multichannel sample introduction needle body is integrally formed structure after being combined by turnover sample portion and reagent sample introduction portion；
Or
The multichannel sample introduction needle body is by any assembled structure in turnover sample portion and reagent sample introduction portion.
3. a kind of multichannel sample introduction needle as claimed in claim 1, it is characterised in that：
The length of the length more than any reagent sample introduction portion longitudinal direction of turnover sample portion longitudinal direction.
4. a kind of multichannel sample introduction needle as claimed in claim 2, it is characterised in that：
Beyond the part in reagent sample introduction portion, its surface is fabricated by by water-proof material in the turnover sample portion.
5. a kind of multichannel sample introduction needle as claimed in claim 1, it is characterised in that：
The turnover sample portion and/or reagent sample introduction portion are telescopic structure.
6. a kind of multichannel sample introduction needle as claimed in claim 1, it is characterised in that：
Orientation liquid jet mechanism is provided with the turnover sample portion and/or reagent sample introduction portion；
And/or
The end in the turnover sample portion and/or reagent sample introduction portion is provided with conical jet head.
7. a kind of multichannel sample introduction needle as claimed in claim 1, it is characterised in that：
At least one conduit is equipped with each passage.
8. a kind of multichannel injector, it is characterised in that：Including multichannel sample introduction needle and fortune as described in claim 1-7 is any
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 injector as claimed in claim 8, it is characterised in that：
The polar coordinates locomotory apparatus includes mechanical arm and drive motor；
The end for being installed on mechanical arm that the multichannel sample introduction needle is fixed；
The drive motor mechanical arm carries out the motion of various dimensions.
10. a kind of reaction system being applied in chemical analysis instrument, it is characterised in that：Including as claimed in claim 8 or 9
Multichannel injector and reaction tank；
Wherein, some reaction tubes are provided with the reaction tank；
The multichannel sample introduction needle circulates in the presence of polar coordinates locomotory apparatus between reaction tube；
Also include fluid transport apparatus；
The fluid transport apparatus are 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 true CN106706944A (en) | 2017-05-24 |
| CN106706944B CN106706944B (en) | 2019-06-25 |
Family
ID=58940361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Country | Link |
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| CN (1) | CN106706944B (en) |
Citations (6)
| 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 |
| US20030013200A1 (en) * | 2001-07-12 | 2003-01-16 | Su-Cheng Pai | Liquid sample take-up 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 |
-
2016
- 2016-10-18 CN CN201610908336.7A patent/CN106706944B/en active Active
Patent Citations (6)
| 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 |
| US20030013200A1 (en) * | 2001-07-12 | 2003-01-16 | Su-Cheng Pai | Liquid sample take-up 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106706944B (en) | 2019-06-25 |
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