CN114965843A - Ion chromatograph for multi-channel detection and use method thereof - Google Patents
Ion chromatograph for multi-channel detection and use method thereof Download PDFInfo
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- CN114965843A CN114965843A CN202210514901.7A CN202210514901A CN114965843A CN 114965843 A CN114965843 A CN 114965843A CN 202210514901 A CN202210514901 A CN 202210514901A CN 114965843 A CN114965843 A CN 114965843A
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 230000003139 buffering effect Effects 0.000 claims abstract description 15
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 150000002500 ions Chemical class 0.000 claims description 39
- 238000012360 testing method Methods 0.000 claims description 30
- 238000004140 cleaning Methods 0.000 claims description 16
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000002211 ultraviolet spectrum Methods 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 4
- 238000004659 sterilization and disinfection Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 229920001821 foam rubber Polymers 0.000 claims description 3
- 238000000528 statistical test Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000006870 function Effects 0.000 description 26
- 239000000428 dust Substances 0.000 description 13
- 238000003825 pressing Methods 0.000 description 11
- 241000904014 Pappus Species 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000004255 ion exchange chromatography Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000003480 eluent Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004440 column chromatography Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- 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
- G01N30/96—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 using ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention discloses an ion chromatograph for multi-channel detection and a using method thereof, and relates to the technical field of ion chromatographs. When the portable instrument box is used for conveniently carrying equipment, the protective cover is required to be covered at the top of the instrument box, the buffer column and the extrusion pad are matched with each other, rubber materials are adopted in the extrusion pad to perform the buffer protection function, the flexibility of the buffer column is matched, the left-right buffer protection effect of the buffer pad is improved, then the telescopic rod is stressed to perform telescopic movement in the sleeve block, and meanwhile the buffer pressure rod is driven to perform telescopic movement on the side face of the sleeve block, so that the function of buffering action force consumption is achieved, the problem that internal instruments are damaged due to easy collision during convenient carrying is solved, the buffer protection function of the portable instrument box is favorably increased, and the safety performance of the portable instrument box is improved.
Description
Technical Field
The invention relates to the technical field of ion chromatographs, in particular to an ion chromatograph for multi-channel detection and a using method thereof.
Background
Ion chromatography is a kind of high performance liquid chromatography, also called High Performance Ion Chromatography (HPIC) or modern ion chromatography, and is different from traditional ion exchange chromatography column chromatography mainly by using that resin has very high crosslinking degree and low exchange capacity, sample introduction volume is very small, and the eluent is conveyed by plunger pump to perform on-line automatic continuous conductivity detection on the eluent, so that the ion component and concentration in the detected liquid can be detected. The following problems exist in the prior art:
1. the ion chromatograph has low protective performance, so that when the ion chromatograph is conveniently carried, collision is easy to occur, and the problem of shaking and damage of internal instruments is caused;
2. the inside electronic instrument of ion chromatograph is more, leads to equipment not the time spent, piles up the dust easily to influence the convenient problem of using of ion chromatograph.
Disclosure of Invention
The invention provides an ion chromatograph for multi-channel detection and a using method thereof, wherein one purpose is to have the function of increasing buffer protection and solve the problems that the ion chromatograph is easy to collide when being conveniently carried due to lower protection performance and the internal instrument is easy to shake and damage; wherein another kind of purpose is more in order to solve the inside electronic instrument of ion chromatograph, leads to equipment not time spent, piles up the dust easily to influence the convenient problem of using of ion chromatograph, in order to reach the function of cleaing away the dust, increase the clean effect of device.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the invention provides an ion chromatograph for multi-channel detection, which comprises an instrument box, a protective cover and a display screen, wherein a clamping plate is fixedly mounted on the front surface of the instrument box, an operation panel is fixedly mounted inside the instrument box, the protective cover is fixedly mounted on one side of the top of the instrument box, a buckle is fixedly mounted on the front surface of the protective cover, the display screen is fixedly mounted on the inner side of the protective cover, fixed sliding plates are mounted at the top and the bottom of the display screen, a cleaning plate is movably mounted on the inner side of each fixed sliding plate, a cushion pad is fixedly mounted on one side, far away from the display screen, of each fixed sliding plate, collecting grooves are formed in two sides of the operation panel, and a storage drawer is fixedly mounted at the bottom of each collecting groove.
The inner side of the buffer cushion is fixedly provided with a buffer column, and the other end of the buffer column is fixedly provided with a squeezing pad.
The cleaning device is characterized in that mounting pads are fixedly mounted on two sides of the cleaning plate, and a soft brush is fixedly mounted on the surface of each mounting pad.
The technical scheme of the invention is further improved as follows: the telescopic rod is fixedly mounted on two sides of the buffer column, the sleeving block is fixedly mounted at one end, far away from the extrusion pad, of the telescopic rod, and the side face of the sleeving block is fixedly mounted on one side of the buffer pad.
The technical scheme of the invention is further improved as follows: the fixed solid ring that has cup jointed in the outside of telescopic link, gu fixed ring's side fixed mounting has the buffering depression bar, the other end movable mounting of buffering depression bar is in the side of cover piece.
The technical scheme of the invention is further improved as follows: the inside fixed mounting of blotter has the layer of pressing, the inside fixed mounting who presses the layer has presses the briquetting, the bottom fixed mounting who presses the layer has the resilience layer, the bottom fixed mounting on resilience layer has the foam-rubber cushion.
The technical scheme of the invention is further improved as follows: the inside fixed mounting of resilience layer has the compression piece, the inboard fixed mounting of compression piece has the compression post that resets.
The technical scheme of the invention is further improved as follows: the inner side of the fixed sliding plate is provided with a sliding rail, the inner side of the sliding rail is movably provided with a moving block, and the other side of the moving block is fixedly arranged at two ends of the cleaning plate.
In a second aspect, the present invention further provides a method for using a multichannel detected ion chromatograph, the method comprising the steps of:
the method comprises the following steps: detecting the first sample;
step two: inspecting the second sample;
step three: the test samples were mixed.
The first step further comprises: the inside first advance kind groove of operating panel is placed to the first sample test tube that will collect, carries out convenient inspection data to carry out the data record.
The technical scheme of the invention is further improved as follows: the second step further comprises: the collected second sample test tube is placed in the detection groove of the heat conduction operation panel for detection, so that the function of detecting internal ions is achieved, and data of statistical test are calculated.
The technical scheme of the invention is further improved as follows: the third step further comprises: put first sample test tube and second sample test tube together, mix, then detect in the test tube ultraviolet spectrum detection channel to record final data, at last, take out the sample of test tube, wash the disinfection to detecting instrument.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
1. the invention provides an ion chromatograph for multi-channel detection and a using method thereof, when equipment is carried conveniently, a protective cover is required to be covered on the top of an instrument box, a buffer column and an extrusion pad are matched with each other, rubber materials are adopted in the extrusion pad to perform the buffer protection function, the flexibility of the buffer column is matched to increase the buffer protection effect of a buffer pad in the left-right direction, then a telescopic rod is stressed to perform telescopic movement in a sleeve block, and simultaneously a buffer pressure rod is driven to perform telescopic movement on the side surface of the sleeve block to achieve the function of buffering consumed acting force, so that the problem of internal instrument damage caused by collision easily during carrying conveniently is solved, the buffer protection function of the device is favorably increased, and the safety performance of the device is increased.
2. The invention provides an ion chromatograph with multi-channel detection and a using method thereof, when equipment is carried conveniently, a protective cover is required to be covered on the top of an instrument box and buckled inside a clamping plate by utilizing a buckle, so that the function of fixed installation is achieved, the sealing performance of the device is improved, then a cushion pad is pressed on the periphery of an operation panel and matched with a sponge pad at the bottom of the cushion pad to seal the outside, the dustproof effect is achieved, and the pressing block and a reset pressing column are matched with each other, so that the function of buffering acting force is achieved by utilizing the resilience, the function of buffering protection is improved, the problem that the operation panel is damaged due to larger acting force when the device closes the protective cover is solved, the protective function of the device is increased, and the service life of the device is prolonged.
3. The invention provides an ion chromatograph for multi-channel detection and a using method thereof, wherein after sample detection is finished, a protective cover is movably covered at the top of an instrument box and is buckled inside a clamping plate by a buckle, so that a sealing installation function is achieved, then a power supply is connected to the outside in a matching manner, a sliding rail is electrically driven by sliding rail power to move a moving block, a cleaning plate and a soft hairbrush are driven to move on an operation panel and a display screen, so that a function of conveniently cleaning dust is achieved, the soft hairbrush cleans the dust into a collecting groove, then the dust is pulled out by a containing drawer and poured out, the problem that the dust is easily accumulated when equipment is not used due to more electronic instruments inside the ion chromatograph is solved, the convenient cleaning of the device is facilitated, and the convenient use of the device is facilitated.
4. The invention provides an ion chromatograph for multi-channel detection and a using method thereof.A collected raw material is injected into a first sample tube and is placed in a first sample feeding groove in an operation panel to carry out convenient detection data and record the data, then a second sample tube which is injected is placed in a detection groove of a heat conduction operation panel to be detected, so that the function of detecting internal ions is achieved, the data of statistical detection is calculated, then the first sample tube and the second sample tube are placed together to be mixed, then the ultraviolet spectrum detection channel of the test tube is detected, the final data is recorded, finally, the sample of the test tube is taken out, the detection instrument is cleaned and disinfected, and the device is convenient to reuse.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the cushion structure of the present invention;
FIG. 3 is a schematic view of the construction of the squeeze pad of the present invention;
FIG. 4 is a schematic view of a protective cover according to the present invention;
FIG. 5 is a schematic diagram of a cleaning plate structure according to the present invention;
FIG. 6 is a flow chart of the present invention.
In the figure: 1. an instrument box; 11. an operation panel; 12. collecting tank; 121. a storage drawer; 2. a protective cover; 21. a cushion pad; 211. pressing the layer; 2111. a pressing block; 212. a resilient layer; 2121. compressing the block; 2122. resetting the compression column; 213. a sponge cushion; 214. pressing the cushion; 215. a buffer column; 216. a telescopic rod; 2161. a fixing ring; 2162. a buffer compression bar; 22. buckling; 221. a clamping and connecting plate; 23. cleaning the plate; 231. fixing the sliding plate; 232. a slide rail; 233. a moving block; 234. a mounting mat; 235. a soft brush; 3. a display screen.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
In a first aspect, as shown in fig. 1 to 6, the present invention provides an ion chromatograph for multi-channel detection, including an instrument box 1, a protective cover 2 and a display screen 3, wherein a fastening plate 221 is fixedly installed on a front surface of the instrument box 1, an operation panel 11 is fixedly installed inside the instrument box 1, the protective cover 2 is fixedly installed on one side of a top portion of the instrument box 1, a fastener 22 is fixedly installed on the front surface of the protective cover 2, the display screen 3 is fixedly installed on an inner side of the protective cover 2, a fixed sliding plate 231 is installed on both the top and bottom of the display screen 3, a cleaning plate 23 is movably installed on an inner side of the fixed sliding plate 231, a buffer pad 21 is fixedly installed on one side of the fixed sliding plate 231 away from the display screen 3, collecting tanks 12 are opened on both sides of the operation panel 11, a storage drawer 121 is fixedly installed at a bottom portion of the collecting tank 12, a buffer column 215 is fixedly installed on an inner side of the buffer pad 21, and a pressing pad 214 is fixedly installed at the other end of the buffer column 215, the both sides fixed mounting of buffering post 215 has telescopic link 216, and the one end fixed mounting that extrusion pad 214 was kept away from to telescopic link 216 has the grafting piece, and the side fixed mounting of grafting piece has fixed ring 2161 in one side of blotter 21, and the outside of telescopic link 216 is fixed to be cup jointed, and the side fixed mounting of fixed ring 2161 has buffer pressure pole 2162, and buffer pressure pole 2162's other end movable mounting is in the side of grafting piece.
In this embodiment, when through convenient equipment that carries, need cover protective cover 2 at the top of instrument case 1, utilize cushion 215 and extrusion pad 214 to mutually support, and the inside rubber materials that adopts of extrusion pad 214, the function of buffering protection carries out, and cooperate cushion 215 elasticity, increase the buffering protection's of blotter 21 left and right sides effect, again by telescopic link 216 atress at the inside removal that stretches out and draws back of cup jointing the piece, it also stretches out and draws back the removal in the side of cup jointing the piece to drive buffering depression bar 2162 simultaneously, reach the function of buffering power of consuming, the safeguard function of increase device.
Example 2
As shown in fig. 1 to 6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the pressing layer 211 is fixedly mounted inside the cushion pad 21, the pressing block 2111 is fixedly mounted inside the pressing layer 211, the resilient layer 212 is fixedly mounted at the bottom of the pressing layer 211, the foam pad 213 is fixedly mounted at the bottom of the resilient layer 212, the compression block 2121 is fixedly mounted inside the resilient layer 212, and the reset pressure post 2122 is fixedly mounted inside the compression block 2121.
In this embodiment, when carrying equipment, need cover protective cover 2 at the top of instrument case 1, and utilize buckle 22 to detain the inside at joint board 221, thereby reach fixed mounting's function, increase the leakproofness of device, then press around operating panel 11 by blotter 21 again, the foam-rubber cushion 213 of cooperation blotter 21 bottom, seal to the external world, reach dirt-proof effect, and the cooperation is pressed down piece 2111 and is reseed the compression leg 2122 and mutually support, utilize the elasticity of resilience, reach the function of buffering effort, increase the function of buffering protection, the avoiding arrangement is when closing protective cover 2, the effort is great, lead to the problem that operating panel 11 damaged, be favorable to the device to increase safeguard function, thereby improve the life of device.
Example 3
As shown in fig. 1 to 6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, mounting pads 234 are fixedly mounted on two sides of the cleaning plate 23, a bristle brush 235 is fixedly mounted on the surface of the mounting pads 234, a slide rail 232 is disposed on the inner side of the fixed sliding plate 231, a moving block 233 is movably mounted on the inner side of the slide rail 232, and the other side of the moving block 233 is fixedly mounted at two ends of the cleaning plate 23.
In this embodiment, after detecting through the sample, remove the lid with protective cover 2 at the top of instrument case 1, and utilize buckle 22 to detain the inside at joint board 221, thereby reach seal installation's function, then the external power that inserts of cooperation, make slide rail 232 electric drive movable block 233 move, drive clearance board 23 and pappus brush 235 and remove at operating panel 11 and display screen 3, reach the convenient function that cleans the dust, make pappus brush 235 clean the inside of collecting tank 12 to the dust, then pull out the dust by accomodating drawer 121, pour out, be favorable to the convenient clearance of device, make things convenient for the convenient and fast use of device.
Example 4
In a second aspect, as shown in fig. 1-6, the present invention further provides a method for using a multichannel detected ion chromatograph, comprising the steps of:
the method comprises the following steps: detecting the first sample;
step two: inspecting the second sample;
step three: the test samples were mixed.
The first step further comprises the following steps: the first sample test tube that will collect is placed the inside first sample feeding groove of operating panel 11, carries out convenient inspection data to carry out the record with data, step two still includes: will collect the second sample test tube, place the detection groove of heat conduction operating panel 11 in and detect, reach the function that detects inside ion to calculate statistical test's data, step three still includes: put first sample test tube and second sample test tube together, mix, then detect in the test tube ultraviolet spectrum detection channel to record final data, at last, take out the sample of test tube, wash the disinfection to detecting instrument.
In this embodiment, through the inside that injects first sample test tube into with the raw materials that collect, place the inside first kind of groove of operating panel 11, carry out convenient inspection data, data record, the second sample test tube that will inject into well again, it detects in the detection groove of heat conduction operating panel 11 to place, reach the function that detects inside ion, and calculate the data of statistical examination, then place first sample test tube and second sample test tube together, mix, then detect in the test tube ultraviolet spectrum detection channel, and record final data, finally, take out the sample of test tube, wash the disinfection to detecting the apparatus, make things convenient for the device to reuse.
The operation principle of the multichannel detected ion chromatograph and the method of using the same will be described in detail below.
As shown in fig. 1-6, the collected raw materials are injected into the first sample tube, and placed in the first sample injection groove of the operation panel 11, so as to perform convenient data detection, record data, and then the injected second sample tube is placed in the detection groove of the heat conduction operation panel 11 for detection, so as to achieve the function of detecting internal ions, and calculate data of statistical detection, and then the first sample tube and the second sample tube are placed together for mixing, and then the test tube is detected in the ultraviolet spectrum detection channel, and record final data, and then after the sample detection is finished, the protective cover 2 is movably covered on the top of the instrument box 1 and is buckled inside the buckle plate 221 by the buckle 22, so as to achieve the function of sealing installation, and then the external power supply is connected, so that the slide rail 232 electrically drives the moving block 233 to move, drive clearance board 23 and pappus brush 235 and remove at operating panel 11 and display screen 3, reach the function of convenient dust that cleans for pappus brush 235 cleans the dust to the inside of collecting tank 12, then pulls out the dust by accomodating drawer 121, pours out, is favorable to the convenient clearance of device.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the invention without departing from the spirit of the inventive concept.
Claims (10)
1. The utility model provides an ion chromatograph that multichannel detected, includes instrument box (1), protective cover (2) and display screen (3), the positive fixed mounting of instrument box (1) has joint board (221), the inside fixed mounting of instrument box (1) has operating panel (11), one side fixed mounting at instrument box (1) top has protective cover (2), the positive fixed mounting of protective cover (2) has buckle (22), the inboard fixed mounting of protective cover (2) has display screen (3), its characterized in that: the cleaning device is characterized in that fixed sliding plates (231) are mounted at the top and the bottom of the display screen (3), cleaning plates (23) are movably mounted on the inner sides of the fixed sliding plates (231), cushion pads (21) are fixedly mounted on one sides, far away from the display screen (3), of the fixed sliding plates (231), collecting grooves (12) are formed in two sides of the operation panel (11), and storage drawers (121) are fixedly mounted at the bottoms of the collecting grooves (12);
a buffer column (215) is fixedly installed on the inner side of the buffer pad (21), and a squeezing pad (214) is fixedly installed at the other end of the buffer column (215);
mounting pads (234) are fixedly mounted on two sides of the cleaning plate (23), and a soft brush (235) is fixedly mounted on the surface of each mounting pad (234).
2. The multi-channel detection ion chromatograph of claim 1, wherein: the telescopic rod (216) is fixedly mounted on two sides of the buffer column (215), the sleeving block is fixedly mounted at one end, far away from the extrusion pad (214), of the telescopic rod (216), and the side face of the sleeving block is fixedly mounted on one side of the buffer pad (21).
3. The multi-channel detection ion chromatograph of claim 2, wherein: the outer side of the telescopic rod (216) is fixedly sleeved with a fixing ring (2161), the side face of the fixing ring (2161) is fixedly provided with a buffering pressure rod (2162), and the other end of the buffering pressure rod (2162) is movably arranged on the side face of the sleeving block.
4. The multi-channel detection ion chromatograph of claim 1, wherein: the inside fixed mounting of blotter (21) has and presses layer (211), the inside fixed mounting who presses layer (211) has and presses piece (2111), the bottom fixed mounting who presses layer (211) has resilience layer (212), the bottom fixed mounting of resilience layer (212) has foam-rubber cushion (213).
5. The multi-channel detection ion chromatograph of claim 4, wherein: the inside fixed mounting of resilience layer (212) has compression piece (2121), the inboard fixed mounting of compression piece (2121) has reset compression leg (2122).
6. The multi-channel detection ion chromatograph of claim 1, wherein: the inner side of the fixed sliding plate (231) is provided with a sliding rail (232), the inner side of the sliding rail (232) is movably provided with a moving block (233), and the other side of the moving block (233) is fixedly arranged at two ends of the cleaning plate (23).
7. A use method of an ion chromatograph for multi-channel detection is characterized in that: the use method of the ion chromatograph for multichannel detection comprises the following steps:
the method comprises the following steps: detecting the first sample;
step two: inspecting the second sample;
step three: the test samples were mixed.
8. The method of claim 7, wherein the ion chromatograph comprises: the first step further comprises: the first sample test tube that will collect is placed the inside first sample feeding groove of operating panel (11), carries out convenient inspection data to carry out the record with data.
9. The method of claim 7, wherein the ion chromatograph comprises: the second step further comprises: and placing the collected second sample test tube in a detection groove of a heat conduction operation panel (11) for detection, so as to achieve the function of detecting internal ions, and calculating data of statistical test.
10. The method of claim 7, wherein the ion chromatograph comprises: the third step further comprises: put first sample test tube and second sample test tube together, mix, then detect in the test tube ultraviolet spectrum detection channel to record final data, at last, take out the sample of test tube, wash the disinfection to detecting instrument.
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| CN202210514901.7A CN114965843A (en) | 2022-05-11 | 2022-05-11 | Ion chromatograph for multi-channel detection and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115500866A (en) * | 2022-10-08 | 2022-12-23 | 川北医学院附属医院 | Portable ultrasonic fetal imaging device and method of operation thereof |
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