CN114323804B - High-efficient separation sampling equipment based on mass spectrograph - Google Patents
High-efficient separation sampling equipment based on mass spectrograph Download PDFInfo
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- CN114323804B CN114323804B CN202210221050.7A CN202210221050A CN114323804B CN 114323804 B CN114323804 B CN 114323804B CN 202210221050 A CN202210221050 A CN 202210221050A CN 114323804 B CN114323804 B CN 114323804B
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Abstract
The invention discloses a high-efficiency separation sampling device based on a mass spectrometer, which comprises a bearing working table, an outer mounting machine body, an inner separation sampling assembly, a conveying wheel set and a rotary clamping disc, wherein the outer mounting machine body is fixedly connected to one side of the upper end surface of the bearing working table through an outer locking screw piece; the outer mounting machine is internally provided with an inner separation sampling assembly, and the inner separation sampling assembly performs sampling work of different depths on a sample test piece to be extracted transmitted on the rotary clamping disc according to the layering proportion of the ion mass differentiation liquid level, so that the sample test piece is preliminarily separated in the sampling process.
Description
Technical Field
The invention relates to the technical field of mass spectrometer test instruments and equipment, in particular to high-efficiency separation sampling equipment based on a mass spectrometer.
Background
Mass spectrometers are a common testing instrument, also known as mass spectrometers. Apparatus for separating and detecting different isotopes. According to the principle that charged particles can deflect in an electromagnetic field, the mass difference of substance atoms, molecules or molecular fragments is used for separating and detecting substances, when a mass spectrometer is used for sampling and detecting, separated ions are drained in sequence through a sampling device and enter an ion detector, and a mass spectrogram is formed by collecting and amplifying ion signals and calculating; however, in the prior art, the sampling operation is performed only by using a common sampling device, so that the process is relatively complicated in the post-detection calculation, and the phenomenon of disordered separation of internal ions is easily caused in the sampling reflux to influence the normal detection period.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a high-efficiency separation sampling device based on a mass spectrometer comprises a bearing working table, an outer mounting machine body, an inner separation sampling assembly, a conveying wheel set and a rotary clamping disc, wherein one side of the upper end surface of the bearing working table is fixedly connected with the outer mounting machine body through an outer locking screw piece;
the external mounting machine is internally provided with an internal separation sampling assembly, and the internal separation sampling assembly carries out sampling work of different depths on a sample test piece to be extracted, which is transmitted on the rotary clamping disc, according to the ion mass differentiation liquid level layering proportion, so that the sample test piece is primarily separated in the sampling process.
As a preferred technical scheme of the invention, the inner separation sampling assembly comprises a transmission screw member, a connecting main frame, a mounting frame member, a separation outer cylinder, an elastic shrinkage pipe and a sampling device, wherein the transmission screw member is transversely arranged on the inner upper side of the outer mounting machine body through a bearing member, the transmission screw member can relatively rotate, the connecting main frame is arranged on the transmission screw member in a limiting and sliding manner through a thread meshing effect, a rotating motor is fixed on one side of the outer mounting machine body, the output end of the rotating motor is fixedly connected with the transmission screw member, and the rotating motor drives the connecting main frame to spatially slide;
a mounting frame piece is fixed on the lower end face of the connecting main frame, a sampling device is arranged on the mounting frame piece, and the sampling device extends into a sample test piece to perform sampling work;
the outer installation machine body is internally and fixedly provided with a separation outer barrel through a support frame in a supporting mode, one end of the separation outer barrel is provided with an elastic shrinkage pipe, the elastic shrinkage pipe is communicated with the sampling device, and the separation outer barrel conveys a sample branch to an external detection device after the sampling device finishes sampling work.
As a preferred technical scheme, the sampling device comprises an installation beam, an inner guide shaft rod, an extraction pump piece, a fixed liquid distribution pipe, an extraction head piece and a connecting hose, wherein the inner guide shaft rod is vertically installed on one side inside the installation frame piece, and the inner guide shaft rod can be limited in relative rotation and is arranged on the installation frame piece and driven to rotate by an external motor fixed on the inner guide shaft rod;
the inner guide shaft rod is provided with an installation beam through thread meshing transmission, a fixed liquid distribution pipe vertically penetrates through and is fixed on the installation beam, and a plurality of branch seats are arranged on the fixed liquid distribution pipe;
an extraction head piece is coaxially arranged in the fixed liquid separating pipe, the extraction head piece is communicated with the branch seat through a plurality of connecting hoses, and one side of each connecting hose is connected with an extraction pump piece;
and the extraction head piece simultaneously extracts each layer in the sample test piece through a plurality of sampling ports with different vertical surface positions during sampling operation.
As a preferred technical scheme of the invention, the extraction head piece further comprises a bearing pipe body, built-in calandria, an inner telescopic transfer rod and a controllable telescopic rod, wherein the bearing pipe body is vertically arranged in the fixed liquid-separating pipe, and a plurality of built-in calandria are vertically arranged in the bearing pipe body and can slide relatively in a limiting manner;
an inner telescopic transfer rod is arranged in the bearing pipe body in a relatively deflecting manner, and two ends of the inner telescopic transfer rod are respectively hinged with the built-in calandria;
the cross section of the inner telescopic transfer rod is of a three-section telescopic structure;
one side of one of the built-in calandria in the bearing pipe body is vertically fixed with a controllable telescopic rod, the output end of the controllable telescopic rod is connected and fixed with one end of the built-in calandria, and the built-in calandria is controlled by the up-and-down telescopic action of the controllable telescopic rod to adjust the extraction surface position.
As a preferred technical scheme of the invention, the upper end of the bearing pipe body is fixed with a connecting end piece, and a threaded branch pipe is sleeved on the connecting end piece;
and a threaded sleeve is coaxially arranged in the fixed liquid separating pipe in a way that the fixed liquid separating pipe can rotate relatively through a built-in ball body, the threaded sleeve is connected with the threaded branch pipe for transmission, a built-in motor is further arranged in the fixed liquid separating pipe, and the output end of the built-in motor is connected with the threaded sleeve through the meshing action of a gear and a tooth socket.
As a preferred technical scheme of the invention, a flow collecting piece is coaxially fixed on one side of the built-in calandria close to the drainage port, the cross section of the flow collecting piece is of a hemispherical structure, a plurality of drainage ports are arranged on the circumferential side wall of the flow collecting piece, and the built-in calandria is extended into the corresponding laminar flow in the liquid level through each drainage port to be subjected to bus drainage;
an arc cover piece is fixedly sleeved outside one side of the built-in calandria close to the flow collecting piece.
As a preferred technical scheme of the invention, the rotary clamping disc comprises a main rotating shaft body, a mounting disc part, built-in jackets and side clamping arms, wherein the main rotating shaft body vertically penetrates and is fixed on one side of the upper end surface of the bearing working table surface in a relatively rotating manner, one end of the main rotating shaft body is fixedly connected with the mounting disc part, and a plurality of built-in jackets are arranged on the circumferential array of the upper end surface of the mounting disc part;
side clamping arms are hinged to the inner circumferential side walls of the built-in jackets, and the cross sections of the side clamping arms are of herringbone structures;
and a bearing pad piece is arranged on the lower side of the inner part of the built-in jacket and is hinged with one end of the side clamping arm.
As a preferred technical solution of the present invention, the upper end of the side clamp arm is provided with an auxiliary roller capable of relatively rotating.
Compared with the prior art, the invention provides a high-efficiency separation sampling device based on a mass spectrometer, which has the following beneficial effects:
according to the invention, based on the fact that the sample is separated and sampled after ion mass differentiation is completed, each layer of the sample test piece can be effectively separated and drained in the sampling process, and is branched and conveyed to an external detection device for detection and calculation, so that the cycle time of post-analysis processing is reduced, and the detection efficiency is improved; the sampling device comprises an internal separation sampling assembly, an extraction head piece, a plurality of built-in calandrias, a connecting hose and a rotary clamping disc, wherein each sample is sequentially arranged and conveyed below the internal separation sampling assembly through the rotary clamping disc at each time, the extraction head piece extends into a liquid level to perform sampling operation, the built-in calandrias with different vertical plane heights are used for performing simultaneous layered sampling, and the connecting hose is used for branched conveying, so that the separation sampling of a sample test piece is realized; and a controllable telescopic rod is further arranged in the bearing pipe body and used for adjusting the relative height proportion of each built-in calandria, so that corresponding adjustment can be conveniently carried out according to the layering characteristic of the sample test piece in general detection sampling, and the sampling application range is expanded.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the inner separation sampling assembly of the present invention;
FIG. 3 is a schematic view of a sampling device according to the present invention;
FIG. 4 is a structural schematic of an extraction head of the present disclosure;
FIG. 5 is a partial schematic view of the internal gauntlet in the present invention;
FIG. 6 is a schematic view of a spin chuck according to the present invention;
in the figure: the device comprises a bearing worktable top, a 2 outer mounting machine body, a 3 inner separation sampling assembly, a 301 transmission screw element, a 302 connecting main frame, a 303 mounting frame element, a 304 elastic shrinkage pipe, a 305 rotating motor, a 306 separation outer cylinder, a 4 conveying wheel set, a 5 rotating mounting disc, a 501 mounting disc element, a 502 main rotating shaft body, a 503 built-in jacket, 504 side clamping arms, 505 bearing cushion elements, a 6 sampling device, a 601 mounting cross beam, a 602 inner guide shaft rod, a 603 extraction pump element, a 604 connecting hose, a 605 fixed liquid distribution pipe, a 606 branch base, a 7 extraction head element, a 701 bearing pipe body, a 702 inner telescopic transfer rod, 703 controllable telescopic rods, 704 connecting end elements, 705 threaded branch pipes, 706 threaded sleeves, a built-in motor, a 707 built-in discharge pipe, 8 built-in discharge pipes, a flow collecting 801 element and an 802 arc cover element.
Detailed Description
Referring to fig. 1, the present invention provides a technical solution: a high-efficiency separation sampling device based on a mass spectrometer comprises a bearing working table 1, an outer mounting machine body 2, an inner separation sampling assembly 3, a conveying wheel set 4 and a rotary clamping disc 5, wherein the outer mounting machine body 2 is fixedly connected to one side of the upper end face of the bearing working table 1 through an external locking screw piece, the conveying wheel set 4 is arranged on one side of the outer mounting machine body 2 in a relatively rotatable mode, each sample test piece (not shown in the figure) is sequentially conveyed onto the bearing working table 1 through the conveying wheel set 4, the rotary clamping disc 5 is arranged on one side of the upper end face of the bearing working table 1 in a relatively rotatable mode, and clamping ports in the rotary clamping disc 5 correspond to conveying ports arranged on the conveying wheel set 4 one by one;
the outer mounting machine is internally provided with an inner separation sampling assembly 3, the inner separation sampling assembly 3 carries out sampling work of different depths on a sample test piece to be extracted transmitted on the rotary mounting plate 5 according to the ion quality differentiation liquid level layering proportion, so that the sample test piece is preliminarily separated in the sampling process, and the mixed flow condition of the sample test piece in sampling drainage can be effectively prevented from occurring, and the later-stage detection process is influenced.
Referring to fig. 2, in this embodiment, the inner separation sampling assembly 3 includes a transmission screw 301, a connection main frame 302, a mounting frame 303, a separation outer cylinder 306, an elastic shrinking tube 304 and a sampling device 6, wherein the transmission screw 301 is transversely disposed on the inner upper side of the outer mounting machine body 2 through a bearing piece, the connection main frame 302 is disposed on the transmission screw 301 in a limited sliding manner through a thread engagement effect, a rotating motor 305 is fixed on one side of the outer mounting machine body 2, and an output end of the rotating motor 305 is connected and fixed with the transmission screw 301 and is driven by the rotating motor 305 to spatially slide the connection main frame 302;
a mounting frame member 303 is fixed on the lower end face of the connecting main frame 302, a sampling device 6 is arranged on the mounting frame member 303, and the sampling device 6 extends into a sample test piece for sampling;
a separation outer cylinder 306 is supported and fixed in the outer mounting machine body 2 through a support frame, one end of the separation outer cylinder 306 is provided with an elastic shrinkage pipe 304, the elastic shrinkage pipe 304 is communicated with the sampling device 6, the separation outer cylinder 306 conveys a sample branch to an external detection device (not shown in the figure) after the sampling device 6 finishes sampling, and in use, the transmission screw controls the sampling device to be positioned right above one clamping opening on the rotary clamping plate, so that the spatial positioning of the sampling device is realized without adjustment again.
Referring to fig. 3, in this embodiment, the sampling device 6 includes an installation beam 601, an inner guide shaft 602, an extraction pump 603, a fixed liquid distribution pipe 605, an extraction head 7, and a connection hose 604, wherein the inner guide shaft 602 is vertically installed on one side inside the installation frame 303, and the inner guide shaft 602 is disposed on the installation frame 303 in a relatively rotatable limiting manner and driven to rotate by an external motor fixed thereon;
the inner guide shaft rod 602 is provided with an installation beam 601 through thread engagement transmission, a fixed liquid distribution pipe 605 vertically penetrates and is fixed on the installation beam 601, and a plurality of branch bases 606 are arranged on the fixed liquid distribution pipe 605;
an extraction head piece 7 is coaxially arranged in the fixed liquid distribution pipe 605, the extraction head piece 7 is communicated with the branch base 606 through a plurality of connecting hoses 604, and one side of each connecting hose 604 is connected with an extraction pump piece;
the extraction head piece 7 extracts each layer of the sample test piece through a plurality of sampling ports with different vertical surface positions simultaneously during sampling, and it is noted that before sampling, the vertical surface height adjustment is performed on the extraction head piece preliminarily through the inner guide shaft rod, so that the extraction head piece completely extends into the liquid level, and the air flow phenomenon in the extraction process is prevented.
Referring to fig. 4, in this embodiment, the extraction head 7 further includes a bearing pipe body 701, a built-in pipe bank 8, an internal telescopic transfer rod 702, and a controllable telescopic rod 703, wherein the bearing pipe body 701 is vertically installed in the fixed liquid distribution pipe 605, and a plurality of built-in pipe banks 8 are vertically arranged in the bearing pipe body 701 in a manner of relatively limiting and sliding;
moreover, an inner telescopic transmission rod 702 is arranged in the bearing pipe body 701 and can deflect relatively, and two ends of the inner telescopic transmission rod 702 are hinged with the built-in calandria 8 respectively;
the cross section of the inner telescopic dowel bar 702 is of a three-section telescopic structure;
a controllable telescopic rod 703 is vertically fixed on one side of one of the built-in calandria 8 in the bearing pipe body 701, the output end of the controllable telescopic rod 703 is connected and fixed with one end of the built-in calandria 8, and the built-in calandria 8 is controlled by the up-and-down telescopic action of the controllable telescopic rod 703 to adjust the position of the extraction surface, so that the separation and sampling work can be performed according to the sample layering characteristics.
In this embodiment, a connecting end piece 704 is fixed to the upper end of the bearing pipe body 701, and a threaded branch pipe 705 is sleeved on the connecting end piece 704;
and a threaded sleeve 706 is coaxially arranged in the fixed liquid distribution pipe 605 and can relatively rotate through an internal sphere, the threaded sleeve 706 is connected with the threaded branch pipe 705 for transmission, an internal motor 707 is also arranged in the fixed liquid distribution pipe 605, and the output end of the internal motor 707 is connected with the threaded sleeve 706 through the meshing action of a gear and a tooth space.
Referring to fig. 5, in this embodiment, a collecting member 801 is coaxially fixed on one side of the internal pipe 8 close to the drainage port, a cross section of the collecting member 801 is a hemisphere structure, a plurality of drainage ports are arranged on a circumferential side wall of the collecting member 801, and the drainage ports collect and discharge the corresponding laminar flow of the internal pipe 8 extending into the liquid level;
an arc-shaped cover piece 802 is fixedly sleeved outside one side of the built-in calandria 8 close to the flow collecting piece 801, on one hand, the port of the built-in calandria discharges the water, and on the other hand, the flow collecting piece converges the circumferential surface area of the range of the corresponding layering, so that the integrity of extraction work is guaranteed, and effective separation and extraction of each layering are guaranteed.
Referring to fig. 6, in this embodiment, the rotary chuck 5 includes a main rotating shaft 502, a mounting disc 501, an internal collet 503, and a side clamping arm 504, wherein the main rotating shaft 502 vertically penetrates and is fixed on one side of the upper end surface of the bearing table top 1, the main rotating shaft 502 is fixed to the mounting disc 501 in a relatively rotatable manner, one end of the main rotating shaft 502 is connected and fixed to the mounting disc 501, and a plurality of internal collets 503 are circumferentially arranged on the upper end surface of the mounting disc 501;
moreover, a side clamping arm 504 is hinged to the inner circumferential side wall of each built-in jacket 503, and the cross section of the side clamping arm 504 is in a herringbone structure;
the bearing pad 505 is arranged on the lower side of the inner portion of the built-in jacket 503, the bearing pad 505 is hinged to one end of the side clamping arm 504, the bearing pipe of the sample test piece is limited and clamped by the built-in jacket, the bearing pad drives the upper end of each side clamping arm to fasten and clamp the upper end wall of the bearing pipe under the action of gravity, and the bearing pad has high stability and prevents liquid level shaking amplitude in sampling.
In this embodiment, the upper end of the side clamping arm 504 is provided with an auxiliary roller capable of rotating relatively.
Specifically, in mass spectrometer sampling test, each sample test piece is arranged to rotatory clamping dish in proper order through the transport wheelset, and fasten the clamping to it by the side arm lock, be in sample test piece directly over through transmission screw drive sampling device, and separate sampling, make each layering of sample test piece can carry out branch drainage through the coupling hose, and herein, preferentially carry out local adjustment to the vertical plane position relative height of built-in calandria according to the layering characteristic of sample test piece, and move down through built-in motor drive bearing pipe body whole when the sampling, ensure that the sample test piece can high-efficient separation drainage, thereby it is long when reducing later stage analysis calculation duty cycle, improve detection efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the inventive concept within the technical scope of the present invention, and the technical solution and the inventive concept thereof should be covered by the scope of the present invention.
Claims (4)
1. The utility model provides a high-efficient separation sampling equipment based on mass spectrograph, its is including bearing table surface (1), outer installation organism (2), interior separation sampling subassembly (3), transport wheelset (4) and rotatory clamping dish (5), its characterized in that: one side of the upper end face of the bearing working table top (1) is fixedly connected with an outer mounting machine body (2) through an outer locking screw piece, one side of the outer mounting machine body (2) is provided with a conveying wheel set (4) in a relatively rotating mode, each sample test piece is sequentially conveyed onto the bearing working table top (1) through the conveying wheel set (4), one side of the upper end face of the bearing working table top (1) is provided with a rotary clamping disc (5) in a relatively rotating mode, and clamping ports in the rotary clamping disc (5) correspond to conveying ports arranged on the conveying wheel set (4) in a one-to-one mode;
an inner separation sampling assembly (3) is arranged in the outer mounting machine body, and the inner separation sampling assembly (3) carries out sampling work of different depths on a sample test piece to be extracted and transmitted on the rotary clamping disc (5) according to the ion mass differentiation liquid level layering proportion, so that the sample test piece is subjected to primary separation in the sampling process;
the inner separation sampling assembly (3) comprises a transmission screw (301), a connecting main frame (302), a mounting frame (303), a separation outer cylinder (306), an elastic shrinking pipe (304) and a sampling device (6), wherein the transmission screw (301) is transversely arranged on the upper side inside the outer mounting machine body (2) in a manner that the transmission screw can rotate relatively through a bearing piece, the transmission screw (301) is provided with the connecting main frame (302) in a limiting and sliding manner through a thread meshing effect, a rotating motor (305) is fixed on one side of the outer mounting machine body (2), the output end of the rotating motor (305) is connected and fixed with the transmission screw (301), and the rotating motor (305) drives the connecting main frame (302) to perform spatial sliding;
a mounting frame piece (303) is fixed on the lower end face of the connecting main frame (302), a sampling device (6) is arranged on the mounting frame piece (303), and the sampling device (6) extends into a sample test piece for sampling;
a separation outer cylinder (306) is supported and fixed in the outer installation machine body (2) through a support frame, an elastic shrinkage pipe (304) is installed at one end of the separation outer cylinder (306), the elastic shrinkage pipe (304) is communicated with the sampling device (6), and the separation outer cylinder (306) conveys a sample branch to an external detection device after the sampling device (6) finishes sampling work;
the sampling device (6) comprises an installation beam (601), an inner guide shaft rod (602), an extraction pump piece (603), a fixed liquid distribution pipe (605), an extraction head piece (7) and a connecting hose (604), wherein the inner guide shaft rod (602) is vertically installed on one side of the interior of the installation frame piece (303), and the inner guide shaft rod (602) is limited in relative rotation on the installation frame piece (303) and is driven to rotate by an external motor fixed on the inner guide shaft rod;
the inner guide shaft rod (602) is provided with an installation beam (601) through threaded engagement transmission, a fixed liquid distribution pipe (605) vertically penetrates through and is fixed on the installation beam (601), and a plurality of branch bases (606) are arranged on the fixed liquid distribution pipe (605);
an extraction head piece (7) is coaxially arranged in the fixed liquid distribution pipe (605), the extraction head piece (7) is communicated with the branch base (606) through a plurality of connecting hoses (604), and one side of each connecting hose (604) is connected with an extraction pump piece;
the extraction head piece (7) simultaneously extracts each layer of the sample test piece through a plurality of sampling ports with different vertical surface positions during sampling work;
the extraction head piece (7) further comprises a bearing pipe body (701), built-in calandria (8), an inner telescopic transfer rod (702) and a controllable telescopic rod (703), wherein the bearing pipe body (701) is vertically installed in the fixed liquid distribution pipe (605), and a plurality of built-in calandria (8) are vertically arranged in the bearing pipe body (701) in a relatively limited sliding mode;
an inner telescopic transfer rod (702) is arranged in the bearing pipe body (701) in a relatively deflecting manner, and two ends of the inner telescopic transfer rod (702) are respectively hinged with the built-in calandria (8);
the cross section of the inner telescopic dowel bar (702) is of a three-section telescopic structure;
a controllable telescopic rod (703) is vertically fixed on one side of one of the built-in calandrias (8) in the bearing pipe body (701), the output end of the controllable telescopic rod (703) is connected and fixed with one end of the built-in calandria (8), and the built-in calandria (8) is controlled by the up-and-down telescopic action of the controllable telescopic rod (703) to adjust the extraction surface position;
a collecting piece (801) is coaxially fixed on one side, close to the drainage port, of the built-in calandria (8), the cross section of the collecting piece (801) is of a hemispheroid structure, a plurality of drainage ports are formed in the circumferential side wall of the collecting piece (801), and the drainage ports enable corresponding laminar flows of the built-in calandria (8) extending into the liquid level to be subjected to collecting and draining;
an arc cover piece (802) is fixedly sleeved outside one side of the built-in calandria (8) close to the flow collecting piece (801).
2. The mass spectrometer-based high efficiency separation sampling device of claim 1, wherein: a connecting end piece (704) is fixed at the upper end of the bearing pipe body (701), and a threaded branch pipe (705) is sleeved on the connecting end piece (704);
and a threaded sleeve (706) is coaxially arranged in the fixed liquid distribution pipe (605) through a built-in sphere and can relatively rotate, the threaded sleeve (706) is connected with the threaded branch pipe (705) for transmission, a built-in motor (707) is further arranged in the fixed liquid distribution pipe (605), and the output end of the built-in motor (707) is connected with the threaded sleeve (706) through the meshing action of a gear and a tooth socket.
3. The mass spectrometer-based high efficiency separation sampling device of claim 1, wherein; the rotary clamping disc (5) comprises a main rotating shaft body (502), a mounting disc piece (501), built-in jackets (503) and side clamping arms (504), wherein one side of the upper end face of the bearing working table top (1) can relatively rotate and is vertically and fixedly provided with the main rotating shaft body (502) in a penetrating mode, one end of the main rotating shaft body (502) is fixedly connected with the mounting disc piece (501), and a plurality of built-in jackets (503) are arranged on the circumferential array of the upper end face of the mounting disc piece (501);
moreover, a side clamping arm (504) is hinged to the inner circumferential side wall of each built-in jacket (503), and the cross section of each side clamping arm (504) is of a herringbone structure;
a bearing pad piece (505) is arranged on the lower side of the interior of the built-in jacket (503), and the bearing pad piece (505) is hinged with one end of the side clamping arm (504).
4. The high-efficiency separation sampling device based on the mass spectrometer as claimed in claim 3, wherein: the upper end of the side clamping arm (504) can be provided with an auxiliary roller in a relatively rotating way.
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| US3175732A (en) * | 1960-07-28 | 1965-03-30 | Unger Hans Peter Olof | Device for measuring and dividing of liquids |
| CN201527365U (en) * | 2009-09-29 | 2010-07-14 | 牛其云 | Multilayer synchronous fast sampler for drug dissolution |
| CN202330073U (en) * | 2011-11-02 | 2012-07-11 | 成都恒瑞制药有限公司 | Medicine dissolving-out sampler |
| CN105716907A (en) * | 2016-03-10 | 2016-06-29 | 四川大学 | Multipoint synchronous sampling system for water samples in stratified flow channel model test |
| CN207703531U (en) * | 2017-12-08 | 2018-08-07 | 南京中研专利技术开发有限公司 | A kind of sampler of the water quality detection convenient for being separated by solid-liquid separation |
| CN212113619U (en) * | 2020-06-02 | 2020-12-08 | 美康盛德医疗科技(苏州)有限公司 | Sample inlet and outlet mechanism for mass spectrometer |
| CN112683597A (en) * | 2021-03-11 | 2021-04-20 | 美康盛德医疗科技(苏州)有限公司 | Sampling device of mass spectrometer |
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