CN1415948A - Sampling technique with use of vacuum degassing and air blowing method to determine 14C age of ground water as well as sampling system - Google Patents
Sampling technique with use of vacuum degassing and air blowing method to determine 14C age of ground water as well as sampling system Download PDFInfo
- Publication number
- CN1415948A CN1415948A CN 02156280 CN02156280A CN1415948A CN 1415948 A CN1415948 A CN 1415948A CN 02156280 CN02156280 CN 02156280 CN 02156280 A CN02156280 A CN 02156280A CN 1415948 A CN1415948 A CN 1415948A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- air
- deviate
- water
- sampling
- 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.)
- Granted
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
This invention relates to a sample technology and its sample system for 14C age underground water test with vacuum degas and gas-blast method, composed of air wash bottle, CO2 remover, CO2 collector, buffer bottle, vacuum pump and connection pipes and valve gate and this technology is finished by system vacuum-pumping, water sampling, adjusting PH value, gas boasting and gas removing collecting CO2. The invented sample system has the advantage of good seal performance (without modern carbon pollution) small volume, and light weight.
Description
Technical field
The present invention relates to a kind of underground water
14C dating vacuum outgas air-blowing method sampling technology and sampling system thereof.
Background technology
14C dating method is acknowledged as research underground water and forms a kind of effective ways historical and the evolution rule.The application of this method in subject research work such as water geology is more and more extensive.Sampling techniques are one of gordian techniquies during this method is used.Currently used method has two kinds---the precipitation method and air-blowing method.The precipitation method be under alkali condition with the dissolved inorganic carbon in the underground water with barium carbonate (BaCO
3) or strontium carbonate (SrCO
3) form precipitate, send lab analysis after the collection.This subtraction unit is simple, easy to operate, so use more at present.But this method is poor because of the device leakproofness, and need repeatedly open container in the operating process, and alkaline solution is to carbon dioxide in air (CO in addition
2) strong absorption is arranged, cause contemporary carbon seriously polluted.This method especially is unsuitable for high salinity water, particularly bittern sample collecting (the water buoyancy that density is big is also big, and formed precipitation is free settling not).This method is also because the sulfate in the water sample forms precipitation with the form of barium sulphate (or strontium sulfate) with carbonate, the underground water higher relatively to sulphates content, and the precipitation capacity that obtains will be bigger, cause certain difficulty for the sample preparation in the laboratory.The air-blowing method is to feed nitrogen after the water sample acidifying, the carbon dioxide in the water sample is driven out of and is absorbed with alkali lye.This method has partly overcome the above-mentioned deficiency of the precipitation method, is applicable to the collection of all kinds of water samples in principle.But because of sampling apparatus weighs (as need configuration nitrogen steel cylinder), volume is big, so inconvenience is carried and transported, general only employing when special requirement (as the bittern sample collecting).
Summary of the invention
For solving the problems of the technologies described above, the purpose of this invention is to provide a kind of generally suitable, less, easy to carry, sample effect better groundwater of volume
14C dating vacuum outgas air-blowing method sampling technology and sampling system thereof.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
Underground water
14C dating vacuum outgas air-blowing method sampling technology, its technology is as follows:
(1) sampling system vacuumizes, and promptly with vacuum pump airtight sampling system is bled, and makes air remove carbon dioxide and the total system of flowing through by the air wash bottle, drains intrasystem carbon dioxide;
(2) sampling water promptly utilizes vacuum in the system, by pipeline the source water suction carbon dioxide of certain volume is deviate from the device;
(3) regulate the pH value, promptly add acid solution in the water sample in carbon dioxide is deviate from device, and make pH≤2;
(4) air-blowing, deviate from carbon dioxide, promptly utilize vacuum in the system, make air through air wash bottle flush away carbon dioxide feed carbon dioxide and deviate from device bottom and air-blowing, dissolved carbon dioxide is deviate from;
(5) collect, promptly with the carbon dioxide of deviating from the absorption of the alkali lye in the carbon dioxide collection device water sample;
(6) after air-blowing 8-20 minute, bleed off water sample;
(7) synchronous with step (6), deviate from device to another carbon dioxide and inject source water, below set by step (3)～(6) operate.
(8) deviate from device by the aforesaid operations step with two carbon dioxide and replace air-blowing, the degassing, till collecting 2.5～5 gram carbon (the heavy carbonic radical content is determined the water sample consumption in according to water sample).
The used acid solution of above-mentioned technology can be phosphoric acid.
The used alkali lye of above-mentioned technology is potassium hydroxide solution.
Underground water
14The applied sampling system of C dating vacuum outgas air-blowing method sampling technology, deviate from device 4,5 and air wash bottle 6,7 is formed by the vacuum pump 1 that is communicated with successively, surge flask 2, carbon dioxide collection device 3 and by two groups of carbon dioxide that three-way valve 14 links to each other with carbon dioxide collection device 3 respectively, pipeline between vacuum pump 1 and the surge flask 2 is provided with screw clamp 15, carbon dioxide is deviate to be respectively equipped with funnel 8,9 on the device 4,5, is respectively equipped with two-port valve door 10,11 on the funnel 8,9; Carbon dioxide is deviate to be respectively equipped with the water inlet pipe logical with the source water on the bottom sidewall of device 4,5, is respectively equipped with two-port valve door 12,13 on the water inlet pipe; Air wash bottle 6,7 is deviate from device by conduit and carbon dioxide and is communicated with, and air wash bottle 6,7 is in communication with the outside by draft tube.
The technical progress that the present invention obtains is:
(1) the present invention is owing to be the carbon dioxide in the acidified water sample to be deviate from the back absorb with alkali lye, so the sample that obtains is pure strontium carbonate (or barium carbonate), and the sample preparation in the laboratory of being more convenient for; And be suitable for gathering all kinds of underground water samples;
(2) owing to adopted vacuum technique, thereby can utilize the negative pressure that produces in the sampling apparatus,, and need not be equipped with the nitrogen steel cylinder, alleviate the weight of sampling apparatus with the air air-blowing of flush away carbon dioxide;
(3) utilize the interior negative pressure of sampling apparatus, water sample is sucked container from the water source by pipeline, thereby make whole sampling process not expose atmosphere, avoided the contemporary carbon pollution;
(4) owing to have negative pressure in the sampling apparatus, it is faster to make that carbon dioxide in the water sample is deviate from speed, thereby has shortened the sampling time;
(5) replace sample introduction and air-blowing, the degassing owing to use two less carbon dioxide of volume to deviate from device, thereby reduced the volume of whole sampling apparatus.
Description of drawings
Fig. 1 is the structural representation of the applied sampling system of technology of the present invention.
Wherein, 1-vacuum pump, 2-surge flask, 3-carbon dioxide collection device, 4, the 5-carbon dioxide deviates from device, 6, the wash bottle of 7-air, 8, the 9-funnel, 10,11,12,13-two-port valve door, 14-three-way valve, 15-screw clamp.
Embodiment
As shown in Figure 1, gather subsurface brine with the present invention
14C dating sample is that example is done to describe further to the present invention.
The specification of installing in the system wherein: vacuum pump: 0.5 liter/second of the speed of exhaust; Final vacuum 6.7 handkerchiefs; Surge flask: 5 liters of volumes; Carbon dioxide collection device: 35mm; H200mm; Interior dress 50g/L potassium hydroxide solution 500mL; Carbon dioxide is deviate from device: 260mm; H400mm; Funnel volume 50mL; Air wash bottle: 35mm; H200mm; Interior dress 100g/L potassium hydroxide solution 500mL.
Its technological operation step is as follows:
(1) connects each parts by shown in Figure 1 with rubber tube;
(2) open three-way valve 14, close two-port valve door 10,11,12,13; In funnel 8,9, add 1+1 phosphoric acid solution 50mL; In the air wash bottle, add 100g/L potassium hydroxide solution 500mL;
(3) driving vacuum pump bled 2 minutes; In the carbon dioxide collection device, add 50g/L potassium hydroxide solution 500mL after the termination of pumping;
(4) the swivel tee valve 14, make carbon dioxide deviate from device 4 and are communicated with the carbon dioxide collection device; Carbon dioxide is deviate from device 4 advance freeing port by the pipeline connection water source, open two-port valve door 12, drive vacuum pump, source water entered carbon dioxide and deviate from device 4 this moment; Rotation two-port valve door 10 adds the phosphoric acid solution in the funnel 8; When treating that water level rises to 20 raising of indices lines, close two-port valve door 12, continue air-blowing 8 minutes (disconnecting just) by the screw clamp 15 control speed of evacuation to the bubbles that rise;
(5) the swivel tee valve 14, make carbon dioxide deviate from device 5 and are communicated with (open two-port valve door 12 afterwards, emit carbon dioxide and deviate from water sample in the device 4) with the carbon dioxide collection device; Carbon dioxide is deviate from device 5 advance freeing port by the pipeline connection water source, open two-port valve door 13, source water entered carbon dioxide and deviate from device 5 this moment; Rotation two-port valve door 11 adds the phosphoric acid solution in the funnel 9; When treating that water level rises to 20 raising of indices lines, close two-port valve door 13, continue air-blowing 8 minutes;
(6) (4), (5) operation in step that hockets below (is determined the water sample consumption by water sample heavy carbonic radical content) till collecting 2.5～5.0g carbon.
Claims (4)
1, underground water
14C dating vacuum outgas air-blowing method sampling technology is characterized in that this technology is as follows:
(1) sampling system vacuumizes, and promptly with vacuum pump airtight sampling system is bled, and makes air remove carbon dioxide and the total system of flowing through by the air wash bottle, drains intrasystem carbon dioxide;
(2) sampling water promptly utilizes vacuum in the system, by pipeline the source water suction carbon dioxide of certain volume is deviate from the device;
(3) regulate the pH value, promptly add acid solution in the water sample in carbon dioxide is deviate from device, and make pH≤2;
(4) air-blowing, deviate from carbon dioxide, promptly utilize vacuum in the system, make air through air wash bottle flush away carbon dioxide feed carbon dioxide and deviate from device bottom and air-blowing, dissolved carbon dioxide is deviate from;
(5) collect, promptly with the carbon dioxide of deviating from the absorption of the alkali lye in the carbon dioxide collection device water sample;
(6) after air-blowing 8-20 minute, bleed off water sample;
(7) synchronous with step (6), deviate from device to another carbon dioxide and inject source water, below set by step (3)～(6) operate.
(8) deviate from device by the aforesaid operations step with two carbon dioxide and replace air-blowing, the degassing, till collecting 2.5～5 gram carbon (the heavy carbonic radical content is determined the water sample consumption in according to water sample).
2, according to right underground water
14C dating vacuum outgas air-blowing method sampling technology, it is characterized in that: described acid solution can be phosphoric acid.
3, according to right underground water
14C dating vacuum outgas air-blowing method sampling technology, it is characterized in that: described alkali lye is potassium hydroxide solution.
4, underground water according to claim 1
14The applied sampling system of C dating vacuum outgas air-blowing method sampling technology, it is characterized in that: it is by the vacuum pump (1) that is communicated with successively, surge flask (2), carbon dioxide collection device (3) reaches two groups of carbon dioxide that link to each other with carbon dioxide collection device (3) respectively by three-way valve (14) and deviates from device (4), (5) and air wash bottle (6), (7) form, pipeline between vacuum pump (1) and the surge flask (2) is provided with screw clamp (15), carbon dioxide is deviate from device (4), (5) be respectively equipped with funnel (8) on, (9), funnel (8), (9) be respectively equipped with two-port valve door (10) on, (11); Carbon dioxide is deviate to be respectively equipped with the water inlet pipe logical with the source water on the bottom sidewall of device (4), (5), is respectively equipped with two-port valve door (12), (13) on the water inlet pipe; Air wash bottle (6), (7) are deviate from device by conduit and carbon dioxide and are communicated with, and air wash bottle (6), (7) are in communication with the outside by draft tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021562806A CN1164920C (en) | 2002-12-16 | 2002-12-16 | Sampling technique with use of vacuum degassing and air blowing method to determine 14C age of ground water as well as sampling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021562806A CN1164920C (en) | 2002-12-16 | 2002-12-16 | Sampling technique with use of vacuum degassing and air blowing method to determine 14C age of ground water as well as sampling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1415948A true CN1415948A (en) | 2003-05-07 |
| CN1164920C CN1164920C (en) | 2004-09-01 |
Family
ID=4752726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021562806A Expired - Fee Related CN1164920C (en) | 2002-12-16 | 2002-12-16 | Sampling technique with use of vacuum degassing and air blowing method to determine 14C age of ground water as well as sampling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1164920C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042916B (en) * | 2009-10-15 | 2013-04-24 | 贝荣辉 | Ship ballast water collection device |
| CN103558073A (en) * | 2013-11-15 | 2014-02-05 | 西北大学 | Organic molecule C14 dating sample preparation system and method |
| CN103728653A (en) * | 2013-07-02 | 2014-04-16 | 中国工程物理研究院核物理与化学研究所 | Sample preparation system of carbon-14 in solid sample |
| CN106075508A (en) * | 2016-08-29 | 2016-11-09 | 江南大学 | The sterilizing methods of the feed supplement pipe of a kind of multi-joint fermentation tank and bactericidal unit |
| CN106323666A (en) * | 2015-06-29 | 2017-01-11 | 中国辐射防护研究院 | Device for collecting C-14 in environment water |
| CN106596197A (en) * | 2016-12-18 | 2017-04-26 | 武汉洪兴伟业环境科技有限公司 | Combined sampling system for pollution source waste gas |
| CN108458913A (en) * | 2018-01-22 | 2018-08-28 | 中国地质大学（武汉） | A kind of aquiclude pore water14C extraction elements and method |
| CN109855913A (en) * | 2019-03-04 | 2019-06-07 | 中国地质科学院水文地质环境地质研究所 | Underground water-borne radioactivity inert gas nucleic surveys year sampling system and its method of sampling |
| CN110146338A (en) * | 2019-05-27 | 2019-08-20 | 中国地质科学院水文地质环境地质研究所 | A kind of underground water dissolved inorganic carbon radioassay sample collection method and device |
-
2002
- 2002-12-16 CN CNB021562806A patent/CN1164920C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042916B (en) * | 2009-10-15 | 2013-04-24 | 贝荣辉 | Ship ballast water collection device |
| CN103728653A (en) * | 2013-07-02 | 2014-04-16 | 中国工程物理研究院核物理与化学研究所 | Sample preparation system of carbon-14 in solid sample |
| CN103558073A (en) * | 2013-11-15 | 2014-02-05 | 西北大学 | Organic molecule C14 dating sample preparation system and method |
| CN106323666A (en) * | 2015-06-29 | 2017-01-11 | 中国辐射防护研究院 | Device for collecting C-14 in environment water |
| CN106075508A (en) * | 2016-08-29 | 2016-11-09 | 江南大学 | The sterilizing methods of the feed supplement pipe of a kind of multi-joint fermentation tank and bactericidal unit |
| CN106596197A (en) * | 2016-12-18 | 2017-04-26 | 武汉洪兴伟业环境科技有限公司 | Combined sampling system for pollution source waste gas |
| CN108458913A (en) * | 2018-01-22 | 2018-08-28 | 中国地质大学（武汉） | A kind of aquiclude pore water14C extraction elements and method |
| CN109855913A (en) * | 2019-03-04 | 2019-06-07 | 中国地质科学院水文地质环境地质研究所 | Underground water-borne radioactivity inert gas nucleic surveys year sampling system and its method of sampling |
| CN110146338A (en) * | 2019-05-27 | 2019-08-20 | 中国地质科学院水文地质环境地质研究所 | A kind of underground water dissolved inorganic carbon radioassay sample collection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1164920C (en) | 2004-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1164920C (en) | Sampling technique with use of vacuum degassing and air blowing method to determine 14C age of ground water as well as sampling system | |
| CN101074888A (en) | Device and method for dosing liquid volume | |
| CN200968909Y (en) | Polluting source malodorous gas sampling device | |
| CN114797205B (en) | Sewage treatment equipment capable of pre-deslagging and application method | |
| CN205876674U (en) | Full -automatic pneumatic diaphragm pump | |
| CN208239131U (en) | A kind of hydrogeology underground water sampling apparatus | |
| CN116481872A (en) | AMC on-line monitoring device for semiconductor clean factory building | |
| CN201522491U (en) | Waste liquid treatment device of hematology analyzer | |
| CN1109561A (en) | Pneumatic pump and its pneumatic liquid pump | |
| CN212483004U (en) | Water quality sampling equipment for underground water environment detection | |
| CN101066754B (en) | SF6 gas recovering and purifying process and tank | |
| CN209603210U (en) | A kind of soil strand suction unmanned vehicle | |
| CN209443457U (en) | A kind of vacuum preloading drainage arrangement with control function | |
| CN102563167A (en) | Controller of vacuum dividing valve | |
| CN2749965Y (en) | Sludge and water separating device for sewer | |
| CN213343695U (en) | Marneffei basket fungus spore collection device | |
| CN112326365A (en) | Sampling detection device for food processing | |
| CN217299237U (en) | Automatic switching relay well | |
| CN201474308U (en) | Channel grouting vacuum machine for building | |
| CN2644523Y (en) | Air pressure ooze sucker | |
| CN108479160A (en) | Percolate from garbage filling field processing unit | |
| CN204065439U (en) | A kind of meteorological multiparameter apparatus for automatically measuring | |
| CN1314867C (en) | Sewer mud and water separating equipment | |
| CN220950189U (en) | Rubber particle suction device | |
| CN202893004U (en) | Vacuum sludge discharging machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |