CN104897820B - On-line sample dilution and neutralization test device - Google Patents
On-line sample dilution and neutralization test device Download PDFInfo
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- CN104897820B CN104897820B CN201510265042.2A CN201510265042A CN104897820B CN 104897820 B CN104897820 B CN 104897820B CN 201510265042 A CN201510265042 A CN 201510265042A CN 104897820 B CN104897820 B CN 104897820B
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- peristaltic pump
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Abstract
The invention discloses an on-line sample dilution and neutralization test device which consists of a dilution device, a neutralizer, an instruction control device, a silica gel pipe and a control line, wherein an ultrapure water storage bottle and a sample bottle are connected to a peristaltic pump, an injection pump, a three-way mixer, an electric two-position four-way valve, a three-way mixer and the neutralizer through the dilution silica gel pipe; a control box is connected with the peristaltic pump, the injection pump, the three-way mixer, the electric two-position four-way valve and the neutralizer through the control main line in a control manner; automatic sample dilution and sample neutralization are completed on line through a pipeline and a circuit; samples are provided for a chromatographic analysis system to complete analysis. According to the on-line sample dilution and neutralization test device, the problem caused by ion pollution of an existing neutralization method is effectively solved; no suction pipe or no volumetric flask is used in the whole neutralization process any more, so that the pollution source is reduced, a precise value of experimental data measurement is guaranteed, and a reliable test condition is provided for research on ion chromatographic analysis of snow and ice samples.
Description
Technical field
The present invention relates to technical field of analytical chemistry is and in particular to a kind of on-line sample dilutes neutralization test device.
Background technology
During for soda acid sample analysis, highly acid or strong basicity sample usually can impact analysis result, or impact analysis side
The selection of method, so must analyze after sample is neutralized, traditional neutralization method is chemical neutralisation or resin neutralisation again,
Ionic soil can be introduced during implementing, the result of sample to be analysed be impacted, makes result higher.
Some sample acid-base value are higher and sample in treat that the concentration of measured ion is higher, analyze again after needing dilution, from
Operate cumbersome during line analysis, if the suction pipe used in dilution or volumetric flask pollute or do not have wash clean, directly led
Cause the change of the sample concentration after dilution.
Content of the invention
The purpose of the present invention is exactly to provide a kind of on-line sample dilution neutralization test device for solving the above problems.
The purpose of the present invention can be reached by following measures:
A kind of on-line sample dilutes neutralization test device, be by ultra-pure water storage bottle, sample storage bottle, peristaltic pump, syringe pump,
Peristaltic pump, threeway blender, electronic two position four-way valves, neutralizer, electronic two position four-way valves, control chamber, silica gel tube, control
Main line processed and chromatographic analysis system composition, ultra-pure water storage bottle is connected with peristaltic pump, peristaltic pump respectively by silica gel tube；Wriggle
Pump is connected with threeway blender；Threeway blender is connected with electronic two position four-way valves；Electronic two position four-way valves with electronic two
Cross valve connects；Electronic two position four-way valves are connected with neutralizer and chromatographic analysis system respectively；
Sample storage bottle is connected with syringe pump by silica gel tube；Syringe pump is connected with electronic two position four-way valves；Electronic two four
Port valve is connected with threeway blender and electronic two position four-way valves respectively；Electronic two position four-way valves respectively with neutralizer and color
Spectral analysis system connects；
Control chamber pass through main control line respectively with peristaltic pump, syringe pump, peristaltic pump, threeway blender, electronic two four
Port valve, neutralizer, electronic two position four-way valves connect.
Above-mentioned control chamber is provided with timing display screen and instruction control keyboard.
The external blow-off pipe of above-mentioned neutralizer.
Advantages of the present invention and beneficial effect are:
1st, the present invention is employing neutralizer, efficiently solves existing neutralisation and can introduce asking caused by ionic soil
Topic, does not use suction pipe or volumetric flask in whole N-process, so decreasing polluter, thus ensureing that experimental data measures
Exact value, for research snow and ice ion chromatography provide reliable experimental condition.
2nd, present configuration is simple, easy to operate, practical, low cost, in ice core sample analytical tests, by
Line dilute sample simultaneously can be selected by the switching of control circuit and cross valve using diluted sample function, reduces to be measured in sample
The concentration samples acid-base value pollution of ion.
3rd, the present invention is reasonable in design, and during for soda acid sample analysis, online neutralization sample passes through the neutralization function of neutralizer
And circuit control device, improve the precise control of analysis sample size and reduce the higher error of laboratory sample result.
Brief description
Fig. 1 is the structural representation of the present invention.
In figure: 1- ultra-pure water storage bottle, 2- sample storage bottle, 3- peristaltic pump, 4- syringe pump, 5- peristaltic pump, 6- threeway mixing
Electronic two position four-way valves of device, 7-, 8- neutralizer, electronic two position four-way valves of 9-, 10- control chamber, 11- silica gel tube, 12- control
Main line, 13- chromatographic analysis system, 14- blow-off pipe, 15- timing display screen, 16- instruction control keyboard.
Specific embodiment
The present invention is described further below in conjunction with the accompanying drawings:
As shown in figure 1, a kind of on-line sample dilutes neutralization test device, it is by ultra-pure water storage bottle 1, sample storage bottle 2, wriggles
Pump 3, syringe pump 4, peristaltic pump 5, threeway blender 6, electronic two position four-way valves 7, neutralizer 8, electronic two position four-way valves
9th, control chamber 10, silica gel tube 11, main control line 12 and chromatographic analysis system 13 form, and ultra-pure water storage bottle 1 passes through 11 points of silica gel tube
Do not connect with peristaltic pump 3, peristaltic pump 5；Peristaltic pump 3 is connected with threeway blender 6；Threeway blender 6 with electronic two four
Port valve 7 connects；Electronic two position four-way valves 7 are connected with electronic two position four-way valves 9；Electronic two position four-way valves 9 respectively with
Connect with chromatographic analysis system 13 with device 8；Sample storage bottle 2 is connected with syringe pump 4 by silica gel tube 11；Syringe pump 4 and electronic two
Position four-way valve 7 connects；Electronic two position four-way valves 7 are connected with threeway blender 6 and electronic two position four-way valves 9 respectively；Electronic
Two position four-way valves 9 are connected with neutralizer 8 and chromatographic analysis system 13 respectively；
Control chamber 10 pass through main control line 12 respectively with peristaltic pump 3, syringe pump 4, peristaltic pump 5, threeway blender 6, electricity
Dynamic two position four-way valves 7, neutralizer 8, electronic two position four-way valves 9 connect.
Control chamber 10 is provided with timing display screen 15 and instruction control keyboard 16；The external blow-off pipe 14 of neutralizer 8.
Embodiment
This device has three kinds of mode of operations: simultaneously using dilution and neutralization function, only use dilution function, only using neutralizing
Function, below separate introduction:
Simultaneously using dilution with neutralization function when, all of part is involved in action, from ultra-pure water storage bottle 1 pure water by
Peristaltic pump 3 is transported to threeway blender 6 by the flow that controller 10 sets, and meanwhile the sample in sample storage bottle 2, passes through
Instruction control keyboard 16 on controller 10 sets flow, sends instructions to syringe pump 4 by sample storage bottle 2 through main control line 12
Sample be transported to threeway blender 6 by specified flow sample, pure water is led to after threeway blender 6 mixed diluting again with sample
Cross electronic two position four-way valves 7 and enter electronic two position four-way valves 9, electronic two position four-way valves 9 are connected with neutralizer 8, diluted sample
The neutralization chamber that product enter neutralizer 8 realizes neutralization, and the sample after dilution, neutralization returns electronic two position four-way valves 9, the most laggard
Enter chromatographic analysis system 13, carry out sample analysis, the pure water in ultra-pure water storage bottle 1 is set by controller 10 by peristaltic pump 5 simultaneously
The regeneration room that fixed flow is transported to neutralizer 8 realizes the automatic regeneration of neutralizer, and the waste liquid of generation is discharged by blow-off pipe 14.
When only using dilution function, neutralizer 8 is not involved in work, and the pure water from ultra-pure water storage bottle 1 is pressed by peristaltic pump 3
The flow that controller 10 sets is transported to threeway blender 6, and meanwhile the sample of sample storage bottle 2 presses controller by syringe pump 4
The flow of 10 settings is transported to threeway blender 6 through electronic two position four-way valves 7, and pure water is mixed through threeway blender 6 with sample
Enter electronic two position four-way valves 9 again by electronic two position four-way valves 7 after dilution, now electronic two position four-way valves 9 with
Disconnect with device 8, sample does not pass through neutralizer 8 and is directly entered chromatographic analysis system 13, carries out sample analysis.
When only using neutralization function, syringe pump 4 by the instruction control keyboard 16 operating and setting flow on controller 10, by sample
Sample delivery in product storage bottle 2 is not connect to electronic two position four-way valves 7, now electronic two position four-way valves 7 with threeway blender 6
Logical, sample directly realizes neutralization through the neutralization chamber that electronic two position four-way valve 9 enters neutralizer 8, and the sample after neutralization returns to electricity
Dynamic two position four-way valves 9 enter back into chromatographic analysis system 13, carry out sample analysis, the pure water in ultra-pure water storage bottle 1 is by compacted simultaneously
Dynamic pump 5 realizes the automatic regeneration of neutralizer by the regeneration room that the flow that controller 10 sets is transported to neutralizer 8, generation useless
Liquid is discharged by blow-off pipe 14.
Control circuit 10 completes the conveying of pure water, sample by main control line 12, and the control content of control circuit 10 includes
The start and stop of peristaltic pump 3 and Flow-rate adjustment, the start and stop of syringe pump 4 and Flow-rate adjustment, the start and stop of peristaltic pump 5 and Flow-rate adjustment, electricity
The bilateral switching of dynamic two position four-way valves 7 and electronic two position four-way valves 9, the current switching of neutralizer 8.
The setting of controller 10 instruction is all to be completed by instructing control keyboard 16.
Claims (3)
1. a kind of on-line sample dilutes neutralization test device, be by ultra-pure water storage bottle (1), sample storage bottle (2), peristaltic pump (3),
Syringe pump (4), peristaltic pump (5), threeway blender (6), electronic two position four-way valves (7), neutralizer (8), electronic two four-ways
Valve (9), control chamber (10), silica gel tube (11), main control line (12) and chromatographic analysis system (13) composition it is characterised in that:
Ultra-pure water storage bottle (1) is connected with peristaltic pump (3), peristaltic pump (5) respectively by silica gel tube (11)；Peristaltic pump (3) with
Threeway blender (6) connects；Threeway blender (6) is 2. connected with electronic two position four-way valves (7)；Electronic two position four-way valves
(7) 4. with 8. the connecting of electronic two position four-way valves (9)；7. the connecting with neutralizer (8) of electronic two position four-way valves (9)；
5. the connecting with chromatographic analysis system (13) of electronic two position four-way valves (9)；Threeway blender (6) and electronic two position four-way valves
(7) 3. connection；Neutralizer (8) is 6. connected with two position four-way valves (9)；Sample storage bottle (2) passes through silica gel tube (11) and note
Penetrate pump (4) connection；Syringe pump (4) is 1. connected with electronic two position four-way valves (7)；
There are two kinds of connected states: a state in electronic two position four-way valves (7), 1. 2. connect, 3. 4. connect；4. b state, 1. connect
Lead to, 2. 3. connect；
There are two kinds of connected states: a state in electronic two position four-way valves (9), 5. 6. connect, 7. 8. connect；8. b state, 5. connect
Logical, 6. 7. connection:
Electronic two position four-way valves (7) are connected with threeway blender (6) and electronic two position four-way valves (9) respectively；Electronic two four
Port valve (9) is connected with neutralizer (8) and chromatographic analysis system (13) respectively；
Control chamber (10) is mixed with peristaltic pump (3), syringe pump (4), peristaltic pump (5), threeway respectively by main control line (12)
Device (6), electronic two position four-way valves (7), neutralizer (8), electronic two position four-way valves (9) connect.
2. a kind of on-line sample dilution neutralization test device according to claim 1 it is characterised in that: described control chamber
(10) it is provided with timing display screen (15) and instruction control keyboard (16).
3. a kind of on-line sample dilution neutralization test device according to claim 1 it is characterised in that: described neutralizer
(8) external blow-off pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510265042.2A CN104897820B (en) | 2015-05-22 | 2015-05-22 | On-line sample dilution and neutralization test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510265042.2A CN104897820B (en) | 2015-05-22 | 2015-05-22 | On-line sample dilution and neutralization test device |
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| Publication Number | Publication Date |
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| CN104897820A CN104897820A (en) | 2015-09-09 |
| CN104897820B true CN104897820B (en) | 2017-01-25 |
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| CN201510265042.2A Active CN104897820B (en) | 2015-05-22 | 2015-05-22 | On-line sample dilution and neutralization test device |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784883A (en) * | 2016-04-28 | 2016-07-20 | 中国科学院寒区旱区环境与工程研究所 | Online sample diluting experiment device |
| CN114858954A (en) | 2016-05-05 | 2022-08-05 | 沃特世科技公司 | Method and apparatus for injecting chromatographic samples |
| US11061003B2 (en) | 2016-05-05 | 2021-07-13 | Waters Technologies Corporation | Method and apparatus for injecting a chromatographic sample |
| CN106198150A (en) * | 2016-08-30 | 2016-12-07 | 中国科学院寒区旱区环境与工程研究所 | A kind of sample for chemical analysis comprehensive pretreatment instrument |
| CN106324267A (en) * | 2016-08-30 | 2017-01-11 | 中国科学院寒区旱区环境与工程研究所 | Online concentration test device for snow ice samples of polar region |
| CN106153965A (en) * | 2016-08-30 | 2016-11-23 | 中国科学院寒区旱区环境与工程研究所 | A kind of neutralization concentration test device |
| CN106168628A (en) * | 2016-08-30 | 2016-11-30 | 中国科学院寒区旱区环境与工程研究所 | With concentration test device in a kind of sea water |
| CN106153782A (en) * | 2016-08-30 | 2016-11-23 | 中国科学院寒区旱区环境与工程研究所 | A kind of online neutralization test device |
| CN108572103A (en) * | 2017-03-07 | 2018-09-25 | 中国科学院寒区旱区环境与工程研究所 | A kind of laboratory standard solution preparation device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1585020A (en) * | 1968-05-08 | 1970-01-09 | ||
| US4070913A (en) * | 1976-08-31 | 1978-01-31 | Phillips Petroleum Company | Sample dilution |
| US6998095B2 (en) * | 2003-08-15 | 2006-02-14 | Metara, Inc. | Loop dilution system |
| CN200952647Y (en) * | 2006-05-30 | 2007-09-26 | 朱勇强 | Primary liquid on-line continuous diluting and adding device |
| CN201089738Y (en) * | 2007-09-11 | 2008-07-23 | 太平洋水处理工程有限公司 | Automatic on-line proportion dilution device |
| CN201364291Y (en) * | 2008-12-18 | 2009-12-16 | 杭州鼎利环保科技有限公司 | On-line constant-volume diluter |
| CN103091152B (en) * | 2013-02-21 | 2015-07-29 | 广州伊创仪器有限公司 | For automatic dilution system and the automatic dilution method of in-line analyzer |
| CN103852369B (en) * | 2014-03-24 | 2017-05-17 | 深圳市清时捷科技有限公司 | Diluting device and method |
| CN204613167U (en) * | 2015-05-22 | 2015-09-02 | 中国科学院寒区旱区环境与工程研究所 | A kind of on-line sample dilution neutralization test device |
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Effective date of registration: 20200814 Address after: 730000 No.318, Donggang West Road, Chengguan District, Lanzhou City, Gansu Province Patentee after: NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS Address before: 730000 Gansu city of Lanzhou province Donggang West Road No. 320 Patentee before: Institute of environment and Engineering in cold and dry areas, Chinese Academy of Sciences |
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