CN112630318A - Online cleaning pump of liquid chromatograph - Google Patents
Online cleaning pump of liquid chromatograph Download PDFInfo
- Publication number
- CN112630318A CN112630318A CN202011316515.4A CN202011316515A CN112630318A CN 112630318 A CN112630318 A CN 112630318A CN 202011316515 A CN202011316515 A CN 202011316515A CN 112630318 A CN112630318 A CN 112630318A
- Authority
- CN
- China
- Prior art keywords
- way electromagnetic
- pipeline
- electromagnetic valve
- liquid
- liquid chromatograph
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
- B08B2209/032—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces by the mechanical action of a moving fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The invention discloses an on-line cleaning pump of a liquid chromatograph, belonging to the technical field of liquid chromatograph cleaning, comprising a liquid storage tank, wherein the liquid storage tank comprises three chambers, the three chambers are respectively connected with a first two-way electromagnetic valve through pipelines, the three first two-way electromagnetic valves are connected with a collecting pipe through pipelines, the collecting pipe is connected with a water pump through a pipeline, the water pump is connected with a sample injection valve through a pipeline, the sample injection valve is connected with a chromatographic column through a pipeline, the chromatographic column is connected with a first three-way electromagnetic valve through a pipeline, the right side of the first three-way electromagnetic valve is connected with a detector through a pipeline, the lower side of the first three-way electromagnetic valve is connected with a second three-way electromagnetic valve through a pipeline, the device can clean the liquid chromatograph in an on-line circulation manner, and avoids the problem that, thereby saving cleaning time.
Description
Technical Field
The invention relates to the technical field of liquid chromatograph cleaning, in particular to an online cleaning pump of a liquid chromatograph.
Background
The liquid chromatograph consists of a liquid storage device, a pump, a sample injector, a chromatographic column, a detector, a recorder and the like. The mobile phase in the liquid storage device is pumped into the system by a high pressure pump, the sample solution enters the mobile phase through the sample injector and is loaded into a chromatographic column (stationary phase) by the mobile phase, and because each component in the sample solution has different distribution coefficients in two phases, when the two phases move relatively, through the distribution process of repeated adsorption-desorption, each component generates a large difference in moving speed, is separated into single components and flows out of the column in sequence, when the sample passes through the detector, the concentration of the sample is converted into an electric signal and is transmitted to a recorder, and data is printed out in a map form by the high performance liquid chromatograph mainly comprising a sample injection system, a liquid infusion system, a separation system, a detection system and a data processing system.
The existing liquid chromatograph cannot be cleaned on line, after the liquid chromatograph finishes detection, the chromatographic column of the liquid chromatograph needs to be disassembled to be cleaned, the disassembling of the chromatographic column for cleaning wastes cleaning time, and the inside of the liquid chromatograph is easily polluted in the disassembling and installing processes of the chromatographic column, so that the normal use of the liquid chromatograph is influenced.
Disclosure of Invention
The invention aims to provide an on-line cleaning pump of a liquid chromatograph, which aims to solve the problem that the prior liquid chromatograph needs to be disassembled when a chromatographic column is cleaned.
In order to achieve the purpose, the invention provides the following technical scheme: an on-line cleaning pump of a liquid chromatograph comprises a liquid storage tank, wherein the liquid storage tank comprises three cabin bodies, the three cabin bodies are respectively connected with a first two-way electromagnetic valve through pipelines, the three first two-way electromagnetic valves are connected with collecting pipes through pipelines, the collecting pipe is connected with a water pump through a pipeline, the water pump is connected with a sample injection valve through a pipeline, the sample injection valve is connected with a chromatographic column through a pipeline, the chromatographic column is connected with a first three-way electromagnetic valve through a pipeline, the right side of the first three-way electromagnetic valve is connected with a detector through a pipeline, no. one three solenoid valve's downside has No. two three solenoid valves through the pipe connection, No. two three solenoid valve's left side has the shunt tubes through the pipe connection, and is three the cabin body has No. two solenoid valves through the pipe connection respectively, and is three No. two solenoid valves are connected with the shunt tubes through the pipeline respectively.
Preferably, the first two-way electromagnetic valve and the second two-way electromagnetic valve which are connected with the same cabin body through pipelines are connected through a series circuit.
Preferably, the three two-way electromagnetic valves are connected through a parallel circuit, and the three two-way electromagnetic valves are connected with a single-pole four-throw switch through a lead.
Preferably, three the body upside of the cabin body all is provided with liquid return pipe and drain pipe, liquid return pipe passes through the pipeline and communicates with No. two solenoid valve, the drain pipe passes through the pipeline and communicates with No. one two solenoid valve.
Preferably, the lower extreme of drain pipe is connected with the filter, the filter passes through the screw thread and is connected with the drain pipe.
Preferably, the bottom of the inner cavity of the three cabin bodies is provided with a guide roller, and the liquid storage barrel is arranged above the guide roller in the inner cavity of the three cabin bodies.
Preferably, the left side and the right side of the three liquid storage barrels are provided with anti-collision pads.
Preferably, the rear sides of the three liquid storage barrels are connected with liquid discharge pipes, and a body of each liquid discharge pipe is provided with a liquid discharge valve.
Preferably, the right side of the rear part of the three liquid storage barrels is provided with a square groove, and the three liquid discharge valves are respectively arranged in the three square grooves.
Compared with the prior art, the invention has the beneficial effects that:
1) the device can be used for cleaning the liquid chromatograph in an online circulating manner, so that the problem that the chromatographic column in the liquid chromatograph needs to be disassembled when being cleaned is avoided, and the cleaning time is saved;
2) three kinds of cleaning solution are filled in the liquid storage tank, and the cleaning solution can be automatically replaced through the switching of the first two-way electromagnetic valve and the second three-way electromagnetic valve, so that the cleaning solution in the liquid storage tank is prevented from being manually replaced by a cleaning person.
Drawings
FIG. 1 is a schematic view of a pipe connection according to the present invention;
FIG. 2 is a circuit diagram of the connection of the first two-way solenoid valve and the second three-way solenoid valve according to the present invention;
FIG. 3 is a schematic top view of a liquid storage tank according to the present invention;
FIG. 4 is a front view cross-sectional structural schematic view of the reservoir of the present invention;
FIG. 5 is a right view of the liquid storage barrel of the present invention.
In the figure: the device comprises a liquid storage tank 1, a two-way electromagnetic valve 2, a collecting pipe 3, a water pump 4, a sample injection valve 5, a chromatographic column 6, a liquid discharge valve 7, a detector 8, a three-way electromagnetic valve 9I, a three-way electromagnetic valve 10 II, a two-way electromagnetic valve 11 II, a shunt pipe 12, a liquid discharge pipe 13, a liquid return pipe 14, a collision pad 15, a liquid storage barrel 16, a guide roller 17, a filter 18 and a liquid discharge pipe 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1-5, the present invention provides a technical solution: an on-line cleaning pump of a liquid chromatograph comprises a liquid storage tank 1, wherein the liquid storage tank 1 comprises three cabin bodies, 70% isopropanol solution, pure water and methanol are respectively arranged in cabin bodies of the three cabin bodies, the three cabin bodies are respectively connected with a first two-way electromagnetic valve 2 through pipelines, the three first two-way electromagnetic valves 2 are connected with a collecting pipe 3 through pipelines, the collecting pipe 3 is connected with a water pump 4 through a pipeline, the water pump 4 is connected with a sample injection valve 5 through a pipeline, the sample injection valve 5 is connected with a chromatographic column 6 through a pipeline, the chromatographic column 6 is connected with a first three-way electromagnetic valve 9 through a pipeline, the right side of the first three-way electromagnetic valve 9 is connected with a detector 8 through a pipeline, the detector 8, the chromatographic column 6 and the sample injection valve 5 are body structures of the liquid chromatograph, the lower side of the first three-way electromagnetic valve 9 is, the lower side of the second three-way electromagnetic valve 10 is connected with a pipeline, the three cabin bodies are respectively connected with a second two-way electromagnetic valve 11 through pipelines, and the three second two-way electromagnetic valves 11 are respectively connected with a shunt pipe 12 through pipelines.
The first two-way electromagnetic valve 2 and the second two-way electromagnetic valve 11 which are connected with the same cabin body through pipelines are connected through a series circuit.
The three two-way electromagnetic valves 11 are connected through a parallel circuit, the three two-way electromagnetic valves 11 are connected with a single-pole four-throw switch through a lead, and when the two-way electromagnetic valves 11 are powered on, only one of the two-way electromagnetic valves 11 can be powered on.
The body upside of three cabin body all is provided with liquid return pipe 14 and drain pipe 13, and liquid return pipe 14 passes through the pipeline and communicates with No. two solenoid valve 11, and this pipeline passes through the screw thread to be connected with liquid return pipe 14, and drain pipe 13 passes through the pipeline and communicates with No. one two solenoid valve 2, and this pipeline passes through the screw thread to be connected with drain pipe 13.
The lower extreme of drain pipe 13 is connected with filter 18, and filter 18 is connected with drain pipe 13 through the screw thread, and the lower extreme of drain pipe 13 stretches into in the inner chamber of liquid storage bucket 16, and the both ends of drain pipe 13 are stainless steel pipe, and the centre of drain pipe 13 is flexible metal hose.
The inner chamber bottom of three cabin body all is provided with guide roll 17, and liquid storage barrel 16 has all been placed to the top of guide roll 17 in the inner chamber of three cabin body.
The left and right sides of the three liquid storage barrels 16 are provided with crash pads 15.
The back sides of the three liquid storage barrels 16 are connected with liquid discharge pipes 19, and the bodies of the liquid discharge pipes 19 are provided with liquid discharge valves 7.
The right side of the rear part of the body of the three liquid storage barrels 16 is provided with a square groove, and the three liquid discharge valves 7 are respectively arranged in the three square grooves.
The working principle is as follows: when the liquid chromatograph needs to be cleaned, firstly, the power supply of a first two-way electromagnetic valve 2 and a second two-way electromagnetic valve 11 corresponding to a cabin filled with 70% isopropanol solution is switched on, then a water pump 4 is started, the 70% isopropanol solution sequentially passes through the first two-way electromagnetic valve 2, a collecting pipe 3 and the water pump 4 under the action of the water pump 4 and then enters a sample injection valve 5 to start cleaning a chromatographic column 6 of the liquid chromatograph, the cleaned 70% isopropanol solution sequentially passes through a first three-way electromagnetic valve 9, a second three-way electromagnetic valve 10, a shunt pipe 12 and a second two-way electromagnetic valve 11 and then returns to the cabin filled with the 70% isopropanol solution, after the 70% isopropanol solution is cleaned, the power supply of the first two-way electromagnetic valve 2 and the second two-way electromagnetic valve 11 corresponding to the cabin filled with the pure water is switched on, and at the moment, the power supply of the first two-way electromagnetic valve 2 and the second two-way electromagnetic, pure water sequentially passes through a first two-way electromagnetic valve 2, a collecting pipe 3 and a water pump 4 under the action of the water pump 4, enters a sample injection valve 5 and then begins to clean a chromatographic column 6 of a liquid chromatograph, the cleaned pure water sequentially passes through a first three-way electromagnetic valve 9, a second three-way electromagnetic valve 10, a shunt pipe 12 and a second two-way electromagnetic valve 11 and then returns to a cabin body filled with the pure water, after the pure water is cleaned, the power supply of the first two-way electromagnetic valve 2 and the second two-way electromagnetic valve 11 corresponding to the cabin body of the pure water is switched on, the power supply of the first two-way electromagnetic valve 2 and the second two-way electromagnetic valve 11 corresponding to the cabin body of the pure water is switched off, the methanol sequentially passes through the first two-way electromagnetic valve 2, the collecting pipe 3 and the water pump 4, enters the sample injection valve 5 and then begins to clean the chromatographic column 6 of, The second three-way electromagnetic valve 10, the shunt pipe 12 and the second two-way electromagnetic valve 11 return to the cabin body filled with the methanol, and the liquid chromatograph is cleaned;
when the liquid chromatograph is not cleaned by the cleaning agent in a circulating manner, the gas circuit of the second three-way electromagnetic valve 10 can be switched, at the moment, the cleaning agent in the liquid storage tank 1 enters the sample injection valve 5 after sequentially passing through the first two-way electromagnetic valve 2, the collecting pipe 3 and the water pump 4 under the action of the water pump 4 and then starts to clean the chromatographic column 6 of the liquid chromatograph, and the cleaned cleaning agent is discharged from the pipeline on the lower side of the second three-way electromagnetic valve 10 after passing through the first three-way electromagnetic valve 9.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a liquid chromatograph's online scavenging pump, includes liquid reserve tank (1), its characterized in that: the liquid storage tank (1) comprises three cabin bodies, three the cabin bodies are respectively connected with a two-way electromagnetic valve (2) and three through pipelines, the two-way electromagnetic valve (2) is connected with a collecting pipe (3) through a pipeline, the collecting pipe (3) is connected with a water pump (4) through a pipeline, the water pump (4) is connected with a sample injection valve (5) through a pipeline, the sample injection valve (5) is connected with a chromatographic column (6) through a pipeline, the chromatographic column (6) is connected with a three-way electromagnetic valve (9) through a pipeline, the right side of the three-way electromagnetic valve (9) is connected with a detector (8) through a pipeline, the lower side of the three-way electromagnetic valve (9) is connected with a two-way electromagnetic valve (10) through a pipeline, the left side of the two-way electromagnetic valve (10) is connected with a shunt pipe (12) through, the three second two-way electromagnetic valves (11) are respectively connected with the shunt pipe (12) through pipelines.
2. The on-line cleaning pump for a liquid chromatograph of claim 1, wherein: the first two-way electromagnetic valve (2) and the second two-way electromagnetic valve (11) which are connected with the same cabin body through pipelines are connected through a series circuit.
3. The on-line cleaning pump for a liquid chromatograph of claim 1, wherein: the three two-way electromagnetic valves (11) are connected through a parallel circuit, and the three two-way electromagnetic valves (11) are connected with a single-pole four-throw switch through a lead.
4. The on-line cleaning pump for a liquid chromatograph of claim 1, wherein: it is three the body upside of the cabin body all is provided with liquid return pipe (14) and drain pipe (13), liquid return pipe (14) communicate with No. two solenoid valve (11) through the pipeline, drain pipe (13) communicate with No. one two solenoid valve (2) through the pipeline.
5. The on-line cleaning pump of a liquid chromatograph of claim 4, wherein: the lower extreme of drain pipe (13) is connected with filter (18), filter (18) are connected with drain pipe (13) through the screw thread.
6. The on-line cleaning pump for a liquid chromatograph of claim 1, wherein: the bottom of the inner cavity of the three cabin bodies is provided with a guide roller (17), and the liquid storage barrel (16) is arranged above the guide roller (17) in the inner cavity of the three cabin bodies.
7. The on-line cleaning pump for a liquid chromatograph of claim 6, wherein: the left side and the right side of the three liquid storage barrels (16) are provided with anti-collision pads (15).
8. The on-line cleaning pump for a liquid chromatograph of claim 6, wherein: the rear sides of the three liquid storage barrels (16) are connected with liquid discharge pipes (19), and a body of each liquid discharge pipe (19) is provided with a liquid discharge valve (7).
9. The on-line cleaning pump for a liquid chromatograph of claim 8, wherein: the right side of the rear part of the three liquid storage barrels (16) is provided with a square groove, and the three liquid discharge valves (7) are respectively arranged in the three square grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011316515.4A CN112630318A (en) | 2020-11-23 | 2020-11-23 | Online cleaning pump of liquid chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011316515.4A CN112630318A (en) | 2020-11-23 | 2020-11-23 | Online cleaning pump of liquid chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112630318A true CN112630318A (en) | 2021-04-09 |
Family
ID=75303566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011316515.4A Pending CN112630318A (en) | 2020-11-23 | 2020-11-23 | Online cleaning pump of liquid chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112630318A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005069817A (en) * | 2003-08-22 | 2005-03-17 | Shimadzu Corp | Liquid chromatograph mass spectrometer |
| CN203088298U (en) * | 2013-03-04 | 2013-07-31 | 金陵科技学院 | Multifunctional sofa |
| CN103235074A (en) * | 2013-03-30 | 2013-08-07 | 浙江大学 | High performance liquid chromatography online analysis method and application thereof |
| CN204892469U (en) * | 2015-07-21 | 2015-12-23 | 中国石化仪征化纤有限责任公司 | Wash integrated equipment of chromatographic column |
| CN205941478U (en) * | 2016-08-25 | 2017-02-08 | 陕西必康制药集团控股有限公司 | Efficient liquid chromatograph |
| CN206460006U (en) * | 2017-01-20 | 2017-09-01 | 广州市锦泉仪器科技有限公司 | A kind of on-line cleaning pump of liquid chromatograph |
| CN207300997U (en) * | 2017-08-08 | 2018-05-01 | 江苏同济分析仪器有限公司 | A kind of high pressure pump |
| CN207457159U (en) * | 2017-12-06 | 2018-06-05 | 苏州环球色谱有限责任公司 | More flux liquid-phase chromatographic column circle irrigation systems |
| CN208205638U (en) * | 2018-04-14 | 2018-12-07 | 安远县珊瑚食品发展有限公司 | A kind of drawer cage Chinese medicine air flow dryer |
| CN208334290U (en) * | 2018-07-06 | 2019-01-04 | 河南中大检测技术有限公司 | A kind of liquid-phase chromatographic column cleaning device |
| CN208707184U (en) * | 2018-08-23 | 2019-04-05 | 中电华骋科技有限公司 | A kind of drawer type distribution transformer integrated power distribution cabinet |
| CN110686444A (en) * | 2018-07-05 | 2020-01-14 | 大宇电子株式会社 | Drawer type refrigerator |
| CN211785365U (en) * | 2020-02-21 | 2020-10-27 | 苏州和合医学检验有限公司 | Liquid inlet device for liquid chromatogram |
-
2020
- 2020-11-23 CN CN202011316515.4A patent/CN112630318A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005069817A (en) * | 2003-08-22 | 2005-03-17 | Shimadzu Corp | Liquid chromatograph mass spectrometer |
| CN203088298U (en) * | 2013-03-04 | 2013-07-31 | 金陵科技学院 | Multifunctional sofa |
| CN103235074A (en) * | 2013-03-30 | 2013-08-07 | 浙江大学 | High performance liquid chromatography online analysis method and application thereof |
| CN204892469U (en) * | 2015-07-21 | 2015-12-23 | 中国石化仪征化纤有限责任公司 | Wash integrated equipment of chromatographic column |
| CN205941478U (en) * | 2016-08-25 | 2017-02-08 | 陕西必康制药集团控股有限公司 | Efficient liquid chromatograph |
| CN206460006U (en) * | 2017-01-20 | 2017-09-01 | 广州市锦泉仪器科技有限公司 | A kind of on-line cleaning pump of liquid chromatograph |
| CN207300997U (en) * | 2017-08-08 | 2018-05-01 | 江苏同济分析仪器有限公司 | A kind of high pressure pump |
| CN207457159U (en) * | 2017-12-06 | 2018-06-05 | 苏州环球色谱有限责任公司 | More flux liquid-phase chromatographic column circle irrigation systems |
| CN208205638U (en) * | 2018-04-14 | 2018-12-07 | 安远县珊瑚食品发展有限公司 | A kind of drawer cage Chinese medicine air flow dryer |
| CN110686444A (en) * | 2018-07-05 | 2020-01-14 | 大宇电子株式会社 | Drawer type refrigerator |
| CN208334290U (en) * | 2018-07-06 | 2019-01-04 | 河南中大检测技术有限公司 | A kind of liquid-phase chromatographic column cleaning device |
| CN208707184U (en) * | 2018-08-23 | 2019-04-05 | 中电华骋科技有限公司 | A kind of drawer type distribution transformer integrated power distribution cabinet |
| CN211785365U (en) * | 2020-02-21 | 2020-10-27 | 苏州和合医学检验有限公司 | Liquid inlet device for liquid chromatogram |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208574646U (en) | Mobile resin regeneration all-in-one machine | |
| CN201581085U (en) | Sugar-used automatic ion exchanging device | |
| CN105536755A (en) | Macroporous adsorbing resin automatic regeneration device | |
| CN112630318A (en) | Online cleaning pump of liquid chromatograph | |
| CN205570105U (en) | A recovery unit that economizes on water automatically for reverse osmosis water treatment equipment | |
| CN202208664U (en) | Waste water treatment system for PCB (Printed circuit board) manufacture technological process | |
| CN203030179U (en) | Exhaust treatment device for controlling waste electroplating acid and alkali by waste | |
| JP2864696B2 (en) | Liquid sending device for liquid chromatograph | |
| CN213656289U (en) | Intelligent lubricating oil purification device | |
| CN207614657U (en) | A kind of fully-automatic thermostatic electrodialysis integrating device | |
| CN214794106U (en) | Detection device for eutrophic sewage | |
| CN210607525U (en) | Lithium battery discharging device capable of quantitatively supplying solution | |
| CN211086130U (en) | Intelligent nondestructive testing equipment for spray welding tube bank | |
| CN103055683A (en) | Electroplating acid-base waste gas treatment device based on treating waste with waste | |
| CN209178155U (en) | A kind of Industrial Recirculating Cooling Water system for advanced treatment and recycle | |
| CN204911243U (en) | Denitration catalyst regeneration belt cleaning device | |
| CN206378471U (en) | A kind of online neutralization test device | |
| CN201572608U (en) | Improved dual-tank type reverse-osmosis cleaning device | |
| CN213287877U (en) | Device for measuring density of anions in water by chromatography | |
| CN202460477U (en) | On-line recovery system for anode treating sealant and sealant wastewater treatment device | |
| WO2008142254A3 (en) | Ion-exchange treatment device and process | |
| CN100381370C (en) | System for removing and retrieving hexavalent chrome from wastewater | |
| CN218726973U (en) | Multi-path sampling switching device applied to online chromatograph | |
| CN220485492U (en) | Multi-scene multipurpose water purifier structure | |
| CN213046556U (en) | Water injector capable of quantitatively discharging water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210409 |