CN203949896U - The automatic sampler of coulometry micro-water analyzer and injector sampling assemble - Google Patents
The automatic sampler of coulometry micro-water analyzer and injector sampling assemble Download PDFInfo
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- CN203949896U CN203949896U CN201420311754.4U CN201420311754U CN203949896U CN 203949896 U CN203949896 U CN 203949896U CN 201420311754 U CN201420311754 U CN 201420311754U CN 203949896 U CN203949896 U CN 203949896U
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- Prior art keywords
- sampling assemble
- rifle head
- insulating oil
- injector
- socket
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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.)
- Expired - Lifetime
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- 238000005070 sampling Methods 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000003869 coulometry Methods 0.000 title claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 19
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 21
- 229910002027 silica gel Inorganic materials 0.000 abstract description 21
- 239000000741 silica gel Substances 0.000 abstract description 21
- 229960001866 silicon dioxide Drugs 0.000 abstract description 21
- 238000002347 injection Methods 0.000 abstract description 11
- 239000007924 injection Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 9
- 238000012360 testing method Methods 0.000 description 11
- 239000003153 chemical reaction reagent Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005443 coulometric titration Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of automatic sampler and injector sampling assemble of coulometry micro-water analyzer, this automatic sampler comprises liquid-transfering gun, parts in liquid-transfering gun comprise promotion button, piston rod, shell, piston, spring, unload sharp button, the bottom of shell is rifle head, also comprises in following injector sampling assemble technical scheme of the present utility model injector sampling assemble described in any one; Described injector sampling assemble comprises suction nozzle and metal needle.Above-mentioned automatic sampling device can set the volume that pipettes insulating oil in advance, only need release button to draw insulating oil, press the button and discharge insulating oil two steps, simple to operation, the minor deviations that can effectively reduce manual operation is to pipetting the considerable influence of accuracy of insulating oil volume, this injector sampling assemble is for coordinating liquid-transfering gun to form pipetting and sampling device of coulometry determination of trace water process insulating oil, metal needle is used for piercing through the silicagel pad at coulometry micro-water analyzer injection port place, thereby can direct injected.
Description
Technical field
The utility model belongs to power test technical field, is applied to coulometry determination of trace water, is specifically related to a kind of automatic sampling device and injector sampling assemble.
Background technology
At present, electric system is mainly used coulometry micro-water analyzer to measure the micro-moisture in insulating oil.In the process of determination of trace water, need to pipette insulating oil, 1mL glass syringe is the main tool that pipettes insulating oil, for accurately pipetting after the insulating oil of certain volume, the silicagel pad that pierces through the sealing of coulometry micro-water analyzer injection port place is injected in electrolytic cell to be tested.But in the time of practical operation, there are following problems in glass syringe: the sight line of testing crew must remain on same level with the position of syringe graduation, otherwise can cause sample size higher or on the low side; The proficiency of manual operation glass syringe requires high, even as the small vibration such as breathings, pulse and hold the temperature that needle tubing conducts, also may affect sample size number; Easy air inlet bubble while pipetting oil sample; Syringe Reusability causes different sample rooms to have cross pollution.These factors all can affect the accuracy that pipettes insulating oil volume, it is identical that each sample size is difficult to keep, and then make insulating oil determination of trace water value produce error, thereby make testing crew large, consuming time length of difficulty in the time carrying out the test of insulating oil trace moisture analysis.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of automatic sampler and injector sampling assemble of coulometry micro-water analyzer, the automatic sampler of the coulometry micro-water analyzer that the utility model provides can set the volume that pipettes insulating oil in advance, in the time that needs pipette insulating oil and do in oil trace moisture analysis test, only need release button to draw insulating oil, press the button and discharge insulating oil two steps, simple to operation.The minor deviations that can effectively reduce manual operation is to pipetting the considerable influence of accuracy of insulating oil volume, thereby solves existing glass syringe in the problem that pipettes error considerable influence insulating oil determination of trace water value in insulating oil volume process.
The injector sampling assemble that the utility model also provides, this injector sampling assemble is for coordinating liquid-transfering gun to form the pipetting and sampling device of insulating oil of coulometry determination of trace water process, solved the problem that liquid-transfering gun cannot pierce through coulometry micro-water analyzer injection port place silicagel pad direct injected, the cross pollution of different sample rooms has been avoided in changeable type design simultaneously.
The disclosed injector sampling assemble of the utility model, its technical scheme is:
Comprise suction nozzle and metal needle, described metal needle is made up of socket and the hollow needle tube that is connected to socket lower end, described suction nozzle comprises the cavity of a hollow, the rifle head socket part of the rifle head for being socketed liquid-transfering gun is extended on cavity top, described cavity lower end is arranged on described socket, described suction nozzle respectively with hollow needle tube, rifle head is airtight is connected, keep being communicated with between hollow needle tube and rifle head.
This injector sampling assemble pipettes and sampling device for the insulating oil that coordinates liquid-transfering gun to form coulometry determination of trace water process, silicagel pad at coulometry micro-water analyzer injection port place seals, prevent that the moisture in atmosphere from entering electrolytic cell and affecting mensuration, therefore directly silicagel pad is opened to sample introduction forbidden by testing, the metal needle of this injector sampling assemble is for piercing through the silicagel pad of coulometry micro-water analyzer injection port, solve the problem that liquid-transfering gun cannot pierce through coulometry micro-water analyzer injection port place silicagel pad, thereby can direct injected, socket is for airtight connection hollow needle tube and suction nozzle, for prior art customary means, particularly medical field, the rifle head socket part of suction nozzle upper end is for airtight connection cavity and rifle head, the insulating oil to be measured that cavity is sucked by hollow needle tube for temporary transient storage, the cross pollution of different sample rooms has been avoided in changeable type design simultaneously.
Further, described cavity is hollow Taper Pipe, and its cavity wall is acrylic plastering material, and described rifle head socket part is that slightly larger in diameter is socketed on rifle head in the rubber cylindrical shell of rifle head.Hollow Taper Pipe is universal liquid storage cavity, is convenient to manufacture processing, acrylic plastering material convenient formation, and low price, cost-saving, the mode of rubber tube socket is the airtight connected mode of commonly using.
Further, described injector sampling assemble also comprises the O-ring seal of rubber system, described O-ring seal coordinates rifle headgear to connect, described cavity is hollow Taper Pipe, described rifle head socket part comprises by cavity upper end extends the socket tube being socketed in outside O-ring seal, the lower surface that shell is withstood on described socket tube top, described socket tube is extended with support end face along shell lower surface.Hollow Taper Pipe is that universal liquid storage cavity is convenient to manufacture processing, the structural design Main Function of above-mentioned rifle head socket part is that utilization support end face bears metal needle while piercing through silicagel pad and conducts the pressure to suction nozzle, avoid fractureing of syringe needle, improve the efficiency piercing through while use, handled easily, the O-ring seal of described rubber system ensures the sealing between suction nozzle and rifle head.
Further, described support end face exceeds edge, shell lower surface, is extended with the outer casing sleeve of socket shell on described support end face.Being designed with of outer casing sleeve is beneficial to and prevents from installing skew unstable and when supporting end face and using.
Further, described suction nozzle is that stainless steel is one-body molded.Stainless steel is more sturdy and durable, is beneficial to and pierces through silicagel pad.
Further, the capacity of described cavity is 1mL.Arranging of capacity coordinates the conventional liquid measure of coulomb determination of trace water to take, identical with the 1mL syringe capacity of former use, can avoid the insulating oil pipetting to enter liquid-transfering gun, and protection liquid-transfering gun, to avoid repeatedly the cross pollution of sample introduction, is preferred volume setting.
Further, the length of described metal needle is 7-9cm.The length of described metal needle is that 7-9cm coordinates to pierce through silicagel pad and stretch to the optimum dimension in electrolytic solution, easy to use.
The utility model also comprises a kind of automatic sampler of coulometry micro-water analyzer, its technical scheme is: comprise liquid-transfering gun, parts in liquid-transfering gun comprise promotion button, piston rod, shell, piston, spring, unload sharp button, the bottom of shell is rifle head, liquid-transfering gun is the prior art that is usually used in quantitatively pipetting water, biochemical reagents in biochemical field, above-mentioned parts are only necessary functional part, and the prior art of specific implementation liquid-transfering gun should not only limit to this; Also comprise in the injector sampling assemble technical scheme above-mentioned of the present utility model being installed on rifle head injector sampling assemble described in any one.
Liquid-transfering gun described in such scheme is to utilize spring kinetic energy potential energy converting and energy, piston movement and air displacement principle, and by promoting button control spring, spring promotes piston, and piston does in piston bush determines Cheng Yundong, produces negative pressure, imbitition.When pipetting insulating oil, according to measured volume size adjustment range, press promotion button, spring-compressed, piston moves downward, by Bas Discharged in suction nozzle.Syringe needle is inserted in insulating oil, slowly unclamp promotion button, spring recovers, piston moves upward, produce negative pressure in suction nozzle, insulating oil is stored in the sampling assemble of automatic sampler after automatically sucking by syringe needle, wipes the insulating oil that needle surface may be adhered to thieving paper.In the time carrying out insulating oil trace moisture analysis, discharge insulating oil to electrolytic cell by pressing promotion button after the silicagel pad at needle pierces coulometry micro-water analyzer injection port place to bottom, then carry out micro-moisture coulometric titration in oil and analyze.Before each test, change disposable tip, avoid the cross pollution of different sample rooms.
Above-mentioned automatic sampling device can set the volume that pipettes insulating oil in advance, in the time that needs pipette insulating oil and do in oil trace moisture analysis test, only needs release button to draw insulating oil, presses the button and discharges insulating oil two steps, simple to operation.The minor deviations that can effectively reduce manual operation is to pipetting the considerable influence of accuracy of insulating oil volume, thereby solves existing glass syringe in the problem that pipettes error considerable influence insulating oil determination of trace water value in insulating oil volume process.Though liquid-transfering gun is wherein prior art, but conventionally only pipette for the reagent in biochemical field, conventionally the reagent pipetting comprises water, biological reagent class, absolutely few pipetting for insulating oil, and at power domain, particularly in the experiment of coulometry determination of trace water, pipetting normally of insulating oil carried out with syringe, there is not any open source literature to record and use liquid-transfering gun to carry out pipetting of insulating oil, and simple liquid-transfering gun is owing to cannot puncturing silicagel pad and can not be directly used in the sample introduction of insulating oil, only in the situation that coordinating following injector sampling assemble, just can be applied to pipetting and sample introduction insulating oil in the experiment of coulometry determination of trace water, ensure above-mentioned a series of beneficial effects including improving experiment accuracy.
Brief description of the drawings
Fig. 1 is the structural drawing of the embodiment 1 of the automatic sampler of coulometry micro-water analyzer described in the utility model;
Fig. 2 is the structural drawing of injector sampling assemble embodiment 1 described in the utility model;
Fig. 3 is the structural drawing of injector sampling assemble embodiment 2 described in the utility model.
Mark and corresponding parts title in accompanying drawing:
1-promotes button 2-piston rod 3-shell 4-piston 5-spring 6-and unloads sharp button 7-suction nozzle 71-cavity 72-rifle head socket part 721-support end face 722-outer casing sleeve 8-metal needle 81-socket 82-hollow needle tube 9-O-ring seal
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is done to detailed description further, but embodiment of the present utility model is not limited to this.
The utility model also comprises a kind of injector sampling assemble, as Fig. 2, Fig. 3 is respectively the embodiment 1 of injector sampling assemble, embodiment 2, its structure can be summarized as, comprise suction nozzle 7 and metal needle 8, described metal needle 8 is made up of socket 81 and the hollow needle tube 82 that is connected to socket lower end, described suction nozzle 7 comprises the cavity 71 of a hollow, the rifle head socket part 72 of the rifle head 31 for being socketed liquid-transfering gun is extended on cavity 71 tops, described cavity 71 lower ends are arranged on described socket 81, described suction nozzle 7 respectively with hollow needle tube 82, the airtight connection of rifle head 31, keep being communicated with between hollow needle tube and rifle head.
This injector sampling assemble pipettes and sampling device for the insulating oil that coordinates liquid-transfering gun to form coulometry determination of trace water process, silicagel pad at coulometry micro-water analyzer injection port place seals, prevent that the moisture in atmosphere from entering electrolytic cell and affecting mensuration, therefore directly silicagel pad is opened to sample introduction forbidden by testing, the metal needle of this injector sampling assemble is for piercing through the silicagel pad of coulometry micro-water analyzer injection port, solve the problem that liquid-transfering gun cannot pierce through coulometry micro-water analyzer injection port place silicagel pad, thereby can direct injected, socket is for airtight connection hollow needle tube and suction nozzle, for prior art customary means, particularly medical field, the rifle head socket part of suction nozzle upper end is for airtight connection cavity and rifle head, the insulating oil to be measured that cavity is sucked by hollow needle tube for temporary transient storage, the cross pollution of different sample rooms has been avoided in changeable type design simultaneously.
As Fig. 2, the embodiment 1 of sampling assemble more specifically structure is, described cavity 71 is hollow Taper Pipe, and its cavity wall is acrylic plastering material, being socketed on rifle head 31 in the rubber cylindrical shell of rifle head for slightly larger in diameter of described rifle head socket part 72.Hollow Taper Pipe is universal liquid storage cavity, is convenient to manufacture processing, acrylic plastering material convenient formation, and low price, cost-saving, the mode of rubber tube socket is the airtight connected mode of commonly using.
As Fig. 3, the embodiment 2 of sampling assemble more specifically structure is, described injector sampling assemble also comprises the O-ring seal 9 of rubber system, described O-ring seal 9 coordinates rifle head 31 to be socketed, described cavity 71 is hollow Taper Pipe, described rifle head socket part 72 comprises by cavity 71 upper ends extends the socket tube being socketed in outside O-ring seal 9, the lower surface that shell 3 is withstood on described socket tube top, and described socket tube is extended with along shell lower surface 32 and supports end face 721.Hollow Taper Pipe is that universal liquid storage cavity is convenient to manufacture processing, the structural design Main Function of above-mentioned rifle head socket part is that utilization support end face bears metal needle while piercing through silicagel pad and conducts the pressure to suction nozzle, avoid fractureing of syringe needle, improve the efficiency piercing through while use, handled easily, the O-ring seal of described rubber system ensures the sealing between suction nozzle and rifle head.
As Fig. 3, the embodiment 2 of sampling assemble more specifically structure is that described support end face 721 exceeds 32 edges, shell lower surface, is extended with the outer casing sleeve 722 of socket shell 3 on described support end face 721.Being designed with of outer casing sleeve is beneficial to and prevents from installing skew unstable and when supporting end face and using.
As Fig. 3, the embodiment 2 of sampling assemble more specifically structure is, described metal needle 8 comprises socket 81, and hollow needle tube 82 is stainless steel, and described suction nozzle 7 is that stainless steel is one-body molded.Stainless steel is more sturdy and durable, is beneficial to and pierces through silicagel pad.
In the embodiment 1,2 of sampling assemble, the capacity of described cavity 71 is 1mL.Arranging of capacity coordinates the conventional liquid measure of coulomb determination of trace water to take, identical with the 1mL syringe capacity of former use, can avoid the insulating oil pipetting to enter liquid-transfering gun, and protection liquid-transfering gun, to avoid repeatedly the cross pollution of sample introduction, is preferred volume setting.In the embodiment 1,2 of sampling assemble, the length of described metal needle 8 is 7-9cm.The length of described metal needle is that 7-9cm coordinates to pierce through silicagel pad and stretch to the optimum dimension in electrolytic solution, easy to use.
The embodiment 1 of the automatic sampling device that the utility model comprises is, as shown in Figure 1, comprise liquid-transfering gun, parts in liquid-transfering gun comprise promotion button 1, piston rod 2, shell 3, piston 4, spring 5, unload sharp button 6, the bottom of shell 3 is rifle head 31, liquid-transfering gun is the prior art that is usually used in quantitatively pipetting water, biochemical reagents in biochemical field, and above-mentioned parts are only necessary functional part, and the prior art of specific implementation liquid-transfering gun should not only limit to this; Also comprise in above-mentioned injector sampling assemble technical scheme of the present utility model injector sampling assemble described in any one.
Liquid-transfering gun described in such scheme is to utilize spring kinetic energy potential energy converting and energy, piston movement and air displacement principle, and by promoting button control spring, spring promotes piston, and piston does in piston bush determines Cheng Yundong, produces negative pressure, imbitition.When pipetting insulating oil, according to measured volume size adjustment range, press promotion button, spring-compressed, piston moves downward, by Bas Discharged in suction nozzle.Syringe needle is inserted in insulating oil, slowly unclamp promotion button, spring recovers, piston moves upward, produce negative pressure in suction nozzle, insulating oil is stored in the sampling assemble of automatic sampler after automatically sucking by syringe needle, wipes the insulating oil that needle surface may be adhered to thieving paper.While carrying out insulating oil trace moisture analysis, discharge insulating oil to electrolytic cell by pressing promotion button after needle pierces coulometry micro-water analyzer injection port place silicagel pad to bottom, then carry out micro-moisture coulometric titration in oil and analyze.Before each test, change disposable tip, avoid the cross pollution of different sample rooms.
Above-mentioned automatic sampling device can set the volume that pipettes liquid in advance, in the time that needs pipette insulating oil and do in oil trace moisture analysis test, only needs release button to draw insulating oil, presses the button and discharges insulating oil two steps, simple to operation.The minor deviations that can effectively reduce manual operation is to pipetting the considerable influence of accuracy of insulating oil volume, thereby solves existing glass syringe and pipette the problem of error considerable influence insulating oil determination of trace water value in insulating oil volume process.Though liquid-transfering gun is wherein prior art, but conventionally only pipette for the reagent in biochemical field, conventionally the reagent pipetting comprises water, biological reagent class, absolutely few pipetting for insulating oil, and at power domain, particularly in the experiment of coulometry determination of trace water, pipetting normally of insulating oil carried out with syringe, there is not any open source literature to record and use liquid-transfering gun to carry out pipetting of insulating oil, and simple liquid-transfering gun is owing to cannot piercing through silicagel pad and can not be directly used in the sample introduction of insulating oil, only in the situation that coordinating following injector sampling assemble, just can be applied to pipetting and sample introduction insulating oil in the experiment of coulometry determination of trace water, ensure above-mentioned a series of beneficial effects including improving experiment accuracy.
Adopting previously described is each preferred embodiment of the present utility model, preferred implementation in each preferred embodiment is if not obviously contradictory or taking a certain preferred implementation as prerequisite, each preferred implementation arbitrarily stack combinations is used, design parameter in described embodiment and embodiment is only the utility model proof procedure for clear statement utility model people, not in order to limit scope of patent protection of the present utility model, scope of patent protection of the present utility model is still as the criterion with its claims, the equivalent structure that every utilization instructions of the present utility model and accompanying drawing content are done changes, in like manner all should be included in protection domain of the present utility model.
As mentioned above, can realize preferably the utility model.
Claims (8)
1. injector sampling assemble, it is characterized in that, comprise suction nozzle (7) and metal needle (8), described metal needle (8) by socket (81) and be connected to socket lower end hollow needle tube (82) form, described suction nozzle (7) comprises the cavity (71) of a hollow, the rifle head socket part (72) of the rifle head (31) for being socketed liquid-transfering gun is extended on cavity (71) top, described cavity (71) lower end is arranged on described socket (81), described suction nozzle (7) respectively with hollow needle tube (82), the airtight connection of rifle head (31), keep being communicated with between hollow needle tube and rifle head.
2. injector sampling assemble as claimed in claim 1, be further characterized in that, described cavity (71) is hollow Taper Pipe, and its cavity wall is acrylic plastering material, and the rubber cylindrical shell that is greater than rifle head for diameter of described rifle head socket part (72) is socketed on rifle head (31).
3. injector sampling assemble as claimed in claim 1, be further characterized in that, described injector sampling assemble also comprises the O-ring seal (9) of rubber system, described O-ring seal (9) coordinates rifle head (31) socket, described cavity (71) is hollow Taper Pipe, described rifle head socket part (72) comprises by cavity (71) upper end extends and is socketed in the outer socket tube of O-ring seal (9), the lower surface of shell (3) is withstood on described socket tube top, and described socket tube is extended with and supports end face (721) along shell lower surface (32).
4. injector sampling assemble as claimed in claim 3, is further characterized in that, described support end face (721) exceeds edge, shell lower surface (32), is extended with the outer casing sleeve (722) of socket shell (3) on described support end face (721).
5. injector sampling assemble as claimed in claim 3, is further characterized in that, described suction nozzle (7) is that stainless steel is one-body molded.
6. injector sampling assemble described in claim 1-5 any one, is further characterized in that, the capacity of described cavity (71) is 1mL.
7. injector sampling assemble described in claim 1-5 any one, is further characterized in that, the length of described metal needle (8) is 7-9cm.
8. the automatic sampler of coulometry micro-water analyzer, comprise liquid-transfering gun, parts in liquid-transfering gun comprise promotion button (1), piston rod (2), shell (3), piston (4), spring (5), unload sharp button (6), the bottom of shell (3) is rifle head (31), it is characterized in that, also comprise the injector sampling assemble as described in any one in claim 1-5 being installed on rifle head (31).
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CN201420311754.4U CN203949896U (en) | 2014-06-12 | 2014-06-12 | The automatic sampler of coulometry micro-water analyzer and injector sampling assemble |
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CN201420311754.4U CN203949896U (en) | 2014-06-12 | 2014-06-12 | The automatic sampler of coulometry micro-water analyzer and injector sampling assemble |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106525503A (en) * | 2016-12-01 | 2017-03-22 | 无锡艾科瑞思产品设计与研究有限公司 | Micropipettor for food detection |
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2014
- 2014-06-12 CN CN201420311754.4U patent/CN203949896U/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106525503A (en) * | 2016-12-01 | 2017-03-22 | 无锡艾科瑞思产品设计与研究有限公司 | Micropipettor for food detection |
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