CN106018182B - The root system analog acquisition system monitored for PAHs diffusion flux in soil - Google Patents
The root system analog acquisition system monitored for PAHs diffusion flux in soil Download PDFInfo
- Publication number
- CN106018182B CN106018182B CN201610322394.1A CN201610322394A CN106018182B CN 106018182 B CN106018182 B CN 106018182B CN 201610322394 A CN201610322394 A CN 201610322394A CN 106018182 B CN106018182 B CN 106018182B
- Authority
- CN
- China
- Prior art keywords
- column tube
- glass
- pahs
- water inlet
- spe
- 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.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
Landscapes
- Physics & Mathematics (AREA)
- 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)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of root system analog acquisition systems monitored for PAHs diffusion flux in soil, including passive type soil liquid acquisition storehouse, are built in the PAHs root system analog acquisition system acquired in storehouse；Passive type soil liquid acquisition storehouse includes acquiring storehouse host glass column tube, the Teflon sheath that is set in glass column bottom of the tube, being set in the ground sheath in glass column tube top portion, and glass column tube middle and lower part is equipped with the porous water inlet of side opening；PAHs root system analog acquisition system includes the SPE extraction column tube for being placed in glass column tube, and glass hollow branch pillar has been tamped on SPE pipe top, branch pillar top is sealed by rubber stopper；Porous water inlet indent setting annular in shape, is successively arranged glass fiber filter, polytetrafluoroethylene (PTFE) micro porous filtration interlayer, stainless (steel) wire branch sheath in interior recess from inside to outside.Present system can be suitably used for the acquisition of PAHs and diffusion flux test in percolate under different natural environments, and system design is reasonable, manufacture craft is simple, low in cost, easy to operate, highly efficient durable.
Description
Technical field
The invention belongs to soil environment protection technical fields, and in particular to one kind is for PAHs diffusion flux monitoring in soil
Root system analog acquisition system.
Background technique
Persistence organic pollutant (POPs) is especially pollution caused by polycyclic aromatic hydrocarbon (PAHs) and has seriously threatened agricultural production
Quality safety carries out its accumulation and resolution rule in farmland sysrem especially agricultural product in a deep going way, and in different plantations
The influence of pollutant in soil migration conversion under mode, it has also become a urgent task of the pendulum in face of people, and directly close
It is the significant problem of the food safety and life security to people.Although conventional planting Evaluation Method meets its own root system
Absorbing rule, but different crops are to the Adsorption and desorption of organic pollutant, rising absorption, in vivo degradation under identical edaphic condition
Even there are great differences for rhizosphere microorganism degradation, and experimental result is easily influenced by external environment, is difficult to obtain farmland system
It unites in root system of plant surrounding medium the actual concentration of PAHs and the propagated flux to root system in the soil liquid, is unfavorable for big number
According to comparison, therefore be badly in need of establish a set of unification the especially PAHs of the persistence organic pollutant suitable for farmland sysrem extraction
And the research method of propagated flux.
It is acquired about soil moisture or solution, mostly uses pot clay end, plastic tube and principle of negative pressure to not greatly in the prior art
The soil liquid with soil depth is collected, and does not fully consider that solute feature carries out the material of acquisition device in the soil liquid
Optimization avoids material itself from retaining and interfere the absorption of solute, such as pot clay end is equal to the ion in most of soils solution
Strong adsorption effect is generated, the measurement to actual concentrations in the soil liquid is seriously affected；In addition, the prior art is generally using negative
It presses principle to accelerate the acquisition time to the soil liquid or moisture, but also leads to not accurately reflect solute in the soil liquid simultaneously and transport
The real conditions moved and spread.
Although research in recent years personnel propose a series of soil liquid solute transfer simulators with their own characteristics and simulation
Root system absorbs and rhizosphere research device, and Chinese patent literature CN201010533307.X discloses a kind of laboratory soil solute fortune
Move simulator, Chinese patent literature CN201110025558.1 and CN200420118139.8 disclose root system of plant nutrient and
Nutrient Absorption simulator and its application method, Chinese patent literature CN201510387286.8 disclose real-time monitoring mould
Quasi- root system absorbs the device and application method of heavy metal-polluted soil.Above-mentioned apparatus can be with simulating plant root system to nutrient in soil
It absorbs and the collection of root system percolate, but due to the persistence organic pollutant especially high hydrophobicity of PAHs and lipophilicity,
It is easy to that the accuracy for adsorbing and influencing by force test data occurs on surfaces such as ceramics, plastics, so as to cause general sampling
System can not simulate Transport And Transformation behavior of the PAHs between root system of plant and surrounding medium, pollute in view of current PAHs in farmland system
Seriousness and generality in system, it is urgent to provide a kind of roots monitored for PAHs diffusion flux in soil by those skilled in the art
It is analog acquisition system.
Summary of the invention
For test period length, poor repeatability present in conventional planting Evaluation Method, plant is not can avoid itself
To POPs degradation, it is easily affected by environment the problems such as, efficient, accurate, time saving, inexpensive be used for soil the present invention provides a kind of
The root system analog acquisition system of middle PAHs diffusion flux monitoring.This system can be used for agrology, environmentology, ecology, hydrology
Etc. the persistence organic pollutants of basic subjects extract, and it can be used repeatedly.
To achieve the above object, the invention adopts the following technical scheme:
A kind of root system analog acquisition system monitored for PAHs diffusion flux in soil, including the passive type soil liquid are adopted
Ji Cang, the PAHs root system analog acquisition system being built in acquisition storehouse；Passive type soil liquid acquisition storehouse includes acquisition storehouse
Host glass column tube, the Teflon sheath for being set in glass column bottom of the tube, the ground sheath for being set in glass column tube top portion, it is described
Glass column tube middle and lower part is equipped with the porous water inlet of side opening；The PAHs root system analog acquisition system includes merging glass column tube
SPE extract column tube, SPE extraction column tube top has tamped glass hollow branch pillar, branch pillar top and seals glass by rubber stopper
Glass column tube.
Preferably, the middle and lower part of the SPE extraction column tube is equipped with the C18 Solid Phase Extraction fixed by two panels Teflon gasket
Filler.
Further, Teflon gasket in bottom is away from 2~6mm of SPE extraction column bottom of the tube.
Further, the SPE extraction column tube uses polypropylene material.
Preferably, the porous water inlet is set to away from glass column tube bottom of the tube 1/6~1/4, and porous water inlet 11
The indent annular in shape of glass column tube 10 at place is arranged, and constitutes cyclic annular water inlet region；The ring-type water inlet region is covered with three layers of filter
Film, and outer diameter coated with film 0.3~0.8mm small compared with the outer diameter of glass tube.
Further, the porous water inlet is set as multiple high outside and low outside oblique circular apertures.
Further, three layers of filter membrane of the cyclic annular water inlet region using glass pipe outer wall as internal layer from inside to outside successively
For glass fiber filter, polytetrafluoroethylene (PTFE) micro porous filtration interlayer, stainless (steel) wire branch sheath.
Preferably, there is the gap of 2~3mm between the rubber stopper and glass hollow branch pillar.
Preferably, the SPE extraction column tube is connected to Solid Phase Extraction washing device after taking out.
The present invention also provides the application methods of above-mentioned root system analog acquisition system, include the following steps:
S1, system prepare: after the SPE prepared extraction column tube is put into glass column tube, being sequentially pressed into glass hollow supporting
Pipe finally seals acquisition storehouse glass column tube with rubber stopper；Wherein, there is 2~3 millimeters of sky between sealing-plug and glass branch pillar
Gap, which extracts after column tube is floated due to the buoyancy that the soil liquid generates in acquisition storehouse in SPE disappears；
S2, acquisition storehouse are laid: first drilling through depth and the following length of analog acquisition system ground sheath in sampled point with earth boring auger
Comparable small bore, insertion, and with enclosing rammed earth；
The recycling of S3, SPE solid-phase extraction column: after carrying out in-situ enrichment to the PAHs in the soil liquid, rubber stopper is screwed off
Sealing is taken out glass hollow branch pillar with tweezers, SPE extract column tube since the buoyancy that the soil liquid generates will float and
On, measurement concentration is directly eluted by Solid Phase Extraction washing device after being drawn off；
The calculating of S4, diffusion flux: SPE extracts column tube after taking out in acquisition storehouse, and the soil liquid acquired in storehouse passes through
After polyfluortetraethylene pipe connects syringe, is transferred to graduated cylinder, the soil liquid volume in acquisition storehouse is tested with graduated cylinder, is denoted as V；
After the concentration that the PAHs being eluted out in SPE solid-phase extraction column is tested out is converted to quality, it is denoted as M；Then PAHs is in soil
Diffusion flux in solution is=M/ (V*T), wherein T is the sampling period.
The beneficial effects of the present invention are:
1), material used in PAHs root system analog acquisition system of the present invention is the material very low to PAHs species adsorption
Material, as glass tubing as acquisition storehouse, polypropylene material as SPE extract void column pipe (it is very micro to the absorption of PAHs, with
Glass material is similar), conventional soil solution acquisition system is overcome, it is molten as soil especially with pot clay end, PVC plastic etc.
To the serious from adsorption phenomena of PAHs when liquid collecting bin, suitable for the soil liquid the in-situ enrichment extraction of PAHs pollutant and
The research of migration conversion and diffusion flux.
2) the built-in of the SPE extraction column tube of C18 filler, is filled in present invention acquisition storehouse, analog root system of plant is to soil
PAHs in solution carries out in-situ enrichment, saves the enriching step in traditional sampling method, and can directly elute to enriched sample
It is tested；To which the present invention can grind the transportion and transformation of PAHs in different type farmland and pot experiment soil
Study carefully.C18 solid phase extraction filler by 2 Teflon gaskets be fixed on SPE extraction column tube middle and lower part, bottom Teflon gasket away from
SPE extraction column bottom of the tube about 2~6mm forms the cavity of 2~6mm height between gasket and SPE column tube bottom, should
Filling design both can avoid filler and slide up and down, and can also increase the soil liquid and permeate up area of passage in process, improve
Bioaccumulation efficiency of the filler to PAHs.
3), the setting of the porous three layers of filter membrane structure in water inlet of the present invention has the characteristic for not adsorbing PAHs.Away from glass
Several circular holes are uniformly arranged at 1/6~1/4 pipe range of bottom of the tube, are wrapped up water inlet with glass fiber filter；Intermediate course is selected
Polytetrafluoroethylene (PTFE) micro porous filtration interlayer, function are the particulate impurity filtered in soil, prevent solid fine grain substance in soil from drawing
Play the blocking of water inlet；Outermost one layer is then stainless (steel) wire branch sheath, plays the role of protecting glass tube and filter membrane.
4) the cyclic annular indent setting that the porous water inlet region in storehouse, is acquired in the present invention, after covering three layers of filter membrane, outside
Diameter is sized to be slightly smaller than upper and lower ends glass tube external diameter, and this design can form toroidal micro cavity, effective protection filter in water inlet region
Film simultaneously avoids blocking to water inlet region.
5), in conclusion the present invention within the same time can to regional soil percolate carry out different level, section with
And the research of sequence；The system there is reasonable in design, production to use easy, easy to maintain, low in cost, efficiently resistance to simultaneously
With the advantages such as carrying portable are suitable for popularization and application.
Detailed description of the invention
Fig. 1 is structure schematic diagram of the invention.
Fig. 2 is SPE solid-phase extraction column type of feed schematic diagram in Fig. 1.
Fig. 3 is the enlarged structure schematic diagram in Fig. 1 at porous water inlet A.
Fig. 4 is the enlarged structure schematic diagram of the present invention three layers of filter membrane of cyclic annular water inlet region.
Fig. 5 is the schematic diagram of Solid Phase Extraction washing device of the present invention.
The meaning of label symbol is as follows in figure:
The 1- passive type soil liquid acquires the porous water inlet of storehouse 10- glass column tube 11-
The ground 12- sheath 2-PAHs root system analog acquisition system 20-SPE extracts column tube
21- glass hollow branch pillar 22- rubber stopper 200-C18 solid phase extraction filler
201- Teflon gasket 100- glass pipe outer wall 110- glass fiber filter
111- polytetrafluoroethylene (PTFE) micro porous filtration interlayer 112- stainless (steel) wire branch sheath
3- Solid Phase Extraction washing device 30- pear shape bottle
Specific embodiment
Below in conjunction with attached drawing, the technical solution in the present invention is clearly and completely described.Following embodiment is only used
In clearly illustrating technical solution of the present invention, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, for a kind of root system analog acquisition system monitored for PAHs diffusion flux in soil, including it is passive
Formula soil liquid acquisition storehouse 1 is built in the PAHs root system analog acquisition system 2 acquired in storehouse；The passive type soil liquid acquires storehouse 1
Including acquisition storehouse host glass column tube 10 (selection glass tubing, rather than common PVC plastic pipe in testing, it is therefore an objective to prevent
A large amount of absorption of the plastic tube to trace P AHs in soil, so as to cause test result error, in some instances it may even be possible to cannot get respective counts
According to), the Teflon sheath that is set in 10 bottom of glass column tube, the ground sheath 12 for being set in 10 top of glass column tube (prevent
Since collision damages tube wall in sampling process), 10 middle and lower part of glass column tube is equipped with the porous water inlet 11 of side opening；
PAHs root system analog acquisition system 2 includes that the SPE of merging glass column tube 10 extracts column tube 20, and SPE extraction 20 top of column tube is tamped
There are glass hollow branch pillar 21, branch pillar top to pass through 22 seal glass column tube 10 of rubber stopper.
As shown in Fig. 2, the middle and lower part of SPE extraction column tube 20 is equipped with the C18 solid phase fixed by two panels Teflon gasket 201
Extraction stuffing 200.Specifically, SPE extraction column tube 20 extracts the preparation method comprises the following steps: 1 Teflon gasket is fixed on SPE first
The middle and lower part of column tube 20 forms the sky of a 2mm height generally away from bottom 2mm in column tube between gasket and SPE column tube bottom
Chamber；Then after 1 gram of 100 mesh C18 particulate matter is filled on gasket top, filler is compacted with another Teflon gasket 201.This kind
Filling design both can avoid sliding up and down for filler, can also increase the area of passage in the upward flow event of the soil liquid, improve
The bioaccumulation efficiency of filler.It is polypropylene material, capacity 6ml, the absorption to PAHs that SPE shown in Fig. 1, which extracts void column pipe,
It is very micro, it is similar to glass material.
As shown in figure 3, porous water inlet 11 is set to away from 10 bottom of the tube 1/6~1/4 of glass column tube, and porous water inlet
The indent annular in shape of glass column tube 10 setting at 11 constitutes cyclic annular water inlet region；The ring-type water inlet region is covered with three layers of filter
Film, and outer diameter coated with film 0.3~0.8mm small compared with the outer diameter of glass tube, specifically, being chosen as 0.5mm.This design can into
Mouth of a river region forms toroidal micro cavity, and effective protection filter membrane simultaneously avoids forming blocking to water inlet region.
Multiple high outside and low outside oblique circular apertures are set as in the porous water inlet 11 of glass column pipe outer wall 100.From
And wall effect is reduced, in order to the entrance of percolate；The height of water inlet can also can be into according to the concrete condition of sampled point soil
Row is appropriate to be adjusted.
In conjunction with shown in Fig. 3,4, three layers of filter membrane of cyclic annular water inlet region using the glass pipe outer wall 100 of indent as internal layer,
It is successively set as glass fiber filter 110, polytetrafluoroethylene (PTFE) micro porous filtration interlayer 111 and steel wire branch sheath 112 from inside to outside, it should
The setting of structure has the characteristic for not adsorbing PAHs.It is close to acquisition 10 water inlet region glass pipe outer wall 100 of storehouse glass column tube
For glass fiber filter 110, annularly water inlet is wrapped up；Intermediate course selects teflon membrane filter, and function is filtering
Particulate impurity in soil prevents solid fine grain substance in soil from causing the blocking of water inlet；Outermost one layer is then stainless (steel) wire
Branch sheath 112 plays the role of protecting glass tube and filter membrane.
Have the gap of 2~3mm between rubber stopper 22 and glass hollow branch pillar 21, the gap SPE extract column tube 20 by
The buoyancy that the soil liquid generates in acquisition storehouse can disappear after floating.
SPE extraction column tube 20 is connected directly to Solid Phase Extraction washing device 3 after taking out, as shown in figure 5, according to being extracted
PAHs feature selects elution solution appropriate to be eluted, and adjusts vacuum degree, the elution speed of accurate control eluent, with by
Drop drippage is best.It needs to pre-process eluent before detection, eluent is moved in pear shape bottle 30, then by pear shape bottle
On a rotary evaporator, vacuum rotating is concentrated into about 1ml to 30 dresses, is transferred to sample injection bottle, and be settled on 1ml with n-hexane
Machine measurement.
It should be noted that present system according to actual needs, can by multiple systems simultaneously to PAHs in soil into
The research of row different level, section and sequence.
Following detailed description is made to monitoring process of this system to PAHs flux with reference to the accompanying drawing.
The application method of above-mentioned root system analog acquisition system, includes the following steps:
S1, simulation system prepare: after the SPE prepared extraction column tube 20 is put into glass column tube 10, being sequentially pressed into glass
Hollow branch pillar 21 finally seals acquisition storehouse glass column tube 10 with rubber stopper 22；Wherein, have between sealing-plug and glass branch pillar
2~3 millimeters of gap, which extracts after column tube 20 is floated due to the buoyancy that the soil liquid generates in acquisition storehouse in SPE disappears；
S2, acquisition storehouse are laid: first drilling through depth in sampled point with earth boring auger (relative aperture acquisition storehouse glass column pipe outside diameter is smaller)
It is slotting with 12 or less the comparable small bore of length of analog acquisition system ground sheath (guaranteeing that acquisition storehouse outer wall closely knit is contacted with soil is enclosed)
Enter and (if soil moisture content is excessively high, such as marsh, wetland, paddy field, laying can be inserted directly into), and with enclosing rammed earth；
The recycling of S3, SPE solid-phase extraction column: after carrying out in-situ enrichment to the PAHs in the soil liquid, rubber stopper is screwed off
22 sealings, are taken out glass hollow branch pillar 21 with tweezers, and SPE extracts column tube 20 since the buoyancy that the soil liquid generates will float
It is floating and on, pass through the directly elution measurement concentration of Solid Phase Extraction washing device 3 after being drawn off；
The calculating of S4, diffusion flux: SPE extract column tube 20 from acquisition storehouse in take out after, acquire storehouse in the soil liquid with
Polyfluortetraethylene pipe connects syringe, after being transferred to graduated cylinder, tests the soil liquid volume in acquisition storehouse with graduated cylinder, is denoted as V；
After the concentration that the PAHs being eluted out in SPE extraction column is tested out is converted to quality, it is denoted as M；Then PAHs is in the soil liquid
In diffusion flux be M/ (V*T), wherein T is the sampling period.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of root system analog acquisition system monitored for PAHs diffusion flux in soil, it is characterised in that: including passive type
Soil liquid acquisition storehouse (1), the PAHs root system analog acquisition system (2) being built in acquisition storehouse；The passive type soil liquid
Acquisition storehouse (1) includes glass column tube (10), the Teflon sheath for being set in glass column tube (10) bottom, is set in glass column tube
(10) the ground sheath (12) at the top of, glass column tube (10) middle and lower part are equipped with the porous water inlet (11) of side opening；It is described
PAHs root system analog acquisition system (2) includes that the SPE of merging glass column tube (10) extracts column tube (20), and SPE extracts column tube (20)
Glass hollow branch pillar (21) has been tamped on top, branch pillar top passes through rubber stopper (22) seal glass column tube (10)；
The porous water inlet (11) is set to away from 1/6~1/4 pipe range of glass column tube (10) tube bottom, and porous water inlet (11)
The indent setting annular in shape of the glass column tube (10) at place, constitutes cyclic annular water inlet region；The ring-type water inlet region is covered with three layers
Filter membrane, and outer diameter coated with film is compared with the small 0.3~0.8mm of outer diameter of glass column tube；
Multiple high outside and low outside oblique circular apertures are set as in the porous water inlet (11) of glass column tube (10) outer wall；
Three layers of filter membrane of the ring-type water inlet region are followed successively by glass fibers using glass pipe outer wall (100) as internal layer from inside to outside
Tie up filter membrane (110), polytetrafluoroethylene (PTFE) micro porous filtration interlayer (111), stainless (steel) wire branch sheath (112).
2. a kind of root system analog acquisition system monitored for PAHs diffusion flux in soil according to claim 1,
Be characterized in that: the middle and lower part of SPE extraction column tube (20) is equipped with the C18 solid phase fixed by two panels Teflon gasket (201)
Extraction stuffing (200).
3. a kind of root system analog acquisition system monitored for PAHs diffusion flux in soil according to claim 2,
Be characterized in that: the Teflon gasket (201) of downside extracts column tube (20) 2~6mm of bottom away from SPE.
4. a kind of root system analog acquisition system monitored for PAHs diffusion flux in soil according to claim 2 or 3,
It is characterized by: SPE extraction column tube (20) uses polypropylene material.
5. a kind of root system analog acquisition system monitored for PAHs diffusion flux in soil according to claim 1,
It is characterized in that: having the gap of 2~3mm between the rubber stopper (22) and glass hollow branch pillar (21).
6. a kind of root system analog acquisition system monitored for PAHs diffusion flux in soil according to claim 1,
Be characterized in that: SPE extraction column tube (20) is connected to Solid Phase Extraction washing device (3) after taking out.
7. a kind of application method of the root system analog acquisition system monitored for PAHs diffusion flux in soil, it is characterised in that packet
Include following steps:
S1, system prepare: selecting glass column tube (10) as acquisition storehouse main body, in glass column tube (10) away from bottom of the tube 1/6 ~ 1/4
The porous water inlet (11) of place's setting side opening, and the cyclic annular indent of glass column tube (10) at porous water inlet (11) is constituted into ring
Shape water inlet region, the region is using glass pipe outer wall (100) as internal layer successively cover glass fibrous filter membrane from inside to outside
(110), polytetrafluoroethylene (PTFE) micro porous filtration interlayer (111), stainless (steel) wire branch sheath (112), outer diameter coated with film is compared with glass column tube
The small 0.3~0.8mm of outer diameter；For the ease of percolate entrance, porous water inlet (11) therein is set as multiple and high outside and low outside is in
Skewed circular aperture；
S2, acquisition storehouse are laid: after above-mentioned glass column tube (10) bottom is arranged Teflon sheath, top is arranged ground sheath (12)
Acquisition storehouse is formed, after the SPE prepared extraction column tube (20) is put into glass column tube (10), is sequentially pressed into glass hollow branch pillar
(21), finally with rubber stopper (22) seal glass column tube (10)；Depth first is drilled through in sampled point with earth boring auger and acquisition storehouse ground is protected
The comparable small bore of (12) following length is covered, it will be in the insertion drilling of acquisition storehouse, and with enclosing rammed earth；Wherein, rubber stopper (22) with
There is 2~3 millimeters of gap between glass hollow branch pillar (21)；
S3, in-situ enrichment: the soil liquid passes sequentially through three layers of filter membrane in cyclic annular water inlet region via porous water inlet (11)
Into in acquisition storehouse, SPE extraction column tube (20) in glass column tube (10) carries out in-situ enrichment to the PAHs in the soil liquid；By
The soil liquid generates buoyancy in acquisition storehouse, and SPE extracts column tube (20) and floats, thus rubber stopper (22) and glass hollow branch pillar
(21) gap between disappears；
The recycling of S4, SPE solid-phase extraction column: after carrying out in-situ enrichment to the PAHs in the soil liquid, screwing off rubber stopper (22),
Glass hollow branch pillar (21) is taken out with tweezers, SPE extracts column tube (20) since the buoyancy that the soil liquid generates will float
On and, pass through Solid Phase Extraction washing device (3) directly elution measurement concentration after being drawn off；
The calculating of S5, diffusion flux: SPE extracts column tube (20) after taking out in acquisition storehouse, and the soil liquid acquired in storehouse passes through
Polyfluortetraethylene pipe connects syringe, after being transferred to graduated cylinder, tests the soil liquid volume in acquisition storehouse with graduated cylinder, is denoted as V；
After the concentration that the PAHs being eluted out in SPE extraction column is tested out is converted to quality, it is denoted as M；Then PAHs is in the soil liquid
In diffusion flux be=M/ (V*T), wherein T is the sampling period.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610322394.1A CN106018182B (en) | 2016-05-16 | 2016-05-16 | The root system analog acquisition system monitored for PAHs diffusion flux in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610322394.1A CN106018182B (en) | 2016-05-16 | 2016-05-16 | The root system analog acquisition system monitored for PAHs diffusion flux in soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106018182A CN106018182A (en) | 2016-10-12 |
| CN106018182B true CN106018182B (en) | 2019-03-01 |
Family
ID=57097275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610322394.1A Expired - Fee Related CN106018182B (en) | 2016-05-16 | 2016-05-16 | The root system analog acquisition system monitored for PAHs diffusion flux in soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106018182B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404593A (en) * | 2016-12-15 | 2017-02-15 | 珠江水利委员会珠江水利科学研究院 | Plant leaf scale transpiration measurement device and measurement method thereof |
| CN107179223B (en) * | 2017-04-18 | 2020-06-12 | 中山大学 | Root surface iron film/microbial film generation simulation device and method |
| CN109238926B (en) * | 2018-11-27 | 2024-05-28 | 扬州大学 | Device and method for simulating pollutant migration rule in dry-wet alternating mode |
| CN109187286B (en) * | 2018-11-27 | 2024-03-01 | 扬州大学 | Device for simulating pollutant migration rule under soil dry-wet alternation condition and simulation method thereof |
| CN112255348A (en) * | 2020-09-29 | 2021-01-22 | 江西志科检测技术有限公司 | Pretreatment method for detecting content of dioxin in soil |
| CN112485159B (en) * | 2020-11-03 | 2021-09-03 | 中国原子能科学研究院 | Device and method for measuring diffusion coefficient of crack filler |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2742440Y (en) * | 2004-11-23 | 2005-11-23 | 中国科学院植物研究所 | Device for detecting plant root system nutrition element absorption |
| CN102062773A (en) * | 2010-11-05 | 2011-05-18 | 中国科学院新疆生态与地理研究所 | Method for simulating soil solute transport in laboratory |
| CN102175834B (en) * | 2011-01-24 | 2014-07-09 | 华南农业大学 | Device for stimulating nutrient absorption of plant root system and using method of device |
| CN103454119A (en) * | 2012-08-21 | 2013-12-18 | 中国科学院、水利部成都山地灾害与环境研究所 | Portable soil moisture in-situ collector |
| CN103604665B (en) * | 2013-11-29 | 2016-05-11 | 中国环境科学研究院 | Collection in worksite-enrichment integrated apparatus of trace Organic Contamination of Groundwater thing |
| CN105466737B (en) * | 2015-12-29 | 2019-01-01 | 河海大学 | Gaseous PAHs Passive sampler and its sampling determination method in a kind of case experiment |
| CN105486552B (en) * | 2015-12-31 | 2018-09-04 | 河海大学 | The lasting active in-situ acquisition system of class organic pollution in a kind of gaseous phase of soil |
-
2016
- 2016-05-16 CN CN201610322394.1A patent/CN106018182B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106018182A (en) | 2016-10-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106018182B (en) | The root system analog acquisition system monitored for PAHs diffusion flux in soil | |
| CN103018421B (en) | Multi-section earth-pillar for simulating soil in petroleum hydrocarbon polluted aeration zone | |
| CN104568677A (en) | Leaching test device and method for indoor heavy metal pollutants | |
| CN105334309A (en) | Soil heavy metal migration and transformation simulating device | |
| CN104715674B (en) | Seabed hydrocarbon leakage simulation experiment device and experiment method thereof | |
| CN101551304A (en) | Stratified sampler of water samples | |
| CN109000967A (en) | The System and method for of the acquisition of native stone binary medium earth pillar and hydrologic parameter measurement | |
| CN101413851B (en) | Flood and drought crop rotation paddy field soil gas in-situ acquiring system and method | |
| Di Bonito et al. | Overview of selected soil pore water extraction methods for the determination of potentially toxic elements in contaminated soils: operational and technical aspects | |
| CN106153393A (en) | A kind of original position layering harvester of shallow water area column shaped deposit pore water | |
| CN105866377B (en) | The water and soil leakage monitoring method and device of a kind of cave system formula | |
| CN105548523A (en) | Simulating method of burial evolution process of argillaceous sediments | |
| KR20150120833A (en) | Soil Sampling Apparatus | |
| Abdulkareem et al. | A review of different types of lysimeter used in solute transport studies | |
| CN105880267B (en) | A kind of screening technique of arid and semi-arid lead and zinc ores area rehabilitation plant | |
| CN110514768A (en) | The ceramic tube sampler and the method for sampling acquired for polar organic matter in underground water | |
| CN109283100B (en) | Experimental device and method for soil collection and interstitial water and leakage liquid collection | |
| CN105675350B (en) | A kind of passive type percolate collector of the detections of the POPs suitable for soil | |
| CN202362223U (en) | High-precision gas content tester | |
| CN113295846A (en) | Test device and test method for detecting MICP (micro-emulsified asphalt) solidified polluted soil effect | |
| Curley et al. | The use of porous ceramic cups for sampling soil pore water from the unsaturated zone | |
| CN205333365U (en) | Passive sample thief of polyurethane rainfall runoff | |
| Magnusson | A method for equilibration chamber sampling and gas Chromatographie analysis of the soil atmosphere | |
| CN216377642U (en) | Denitrification test device | |
| CN209198259U (en) | The experimental provision that a kind of sampling of soil gap water stratification and effusion are collected |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190301 Termination date: 20210516 |