CN107462440A - A kind of Sediment Interface Interstitial Water high-resolution sampler - Google Patents
A kind of Sediment Interface Interstitial Water high-resolution sampler Download PDFInfo
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- CN107462440A CN107462440A CN201710622917.9A CN201710622917A CN107462440A CN 107462440 A CN107462440 A CN 107462440A CN 201710622917 A CN201710622917 A CN 201710622917A CN 107462440 A CN107462440 A CN 107462440A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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Abstract
The present invention proposes a kind of Sediment Interface Interstitial Water high-resolution sampler, including sampling plate, Handheld Division is provided with the top of sampling plate, sampling plate is from top to bottom disposed with first level press strip mounting groove, the first sample region of collection overlying water and overlying water deposition interface, the second sample region of collection deposit and the second horizontal press strip mounting groove.The present invention devises handheld handle, deep lake can be not only used for by tether rope by the sedimentation collection of sampling plate weight, and the collection that sediment interstitial water and overlying water are carried out in water bodys such as alluvial flats can be held, it is effectively increased the applicable water body type of sampler；The present invention can realize the high-resolution collection in water sediment sensitive interface to covering the sensitizing range such as water sediment Encryption Design, and individual layer collection sample size greatly improves, analysis test scope with can the quantity of test index greatly promote.
Description
Technical field
The present invention relates to the analysis technical field in deposit with Sediment Interface overlying water water pollutant, and in particular to
A kind of Sediment Interface Interstitial Water high-resolution sampler.
Background technology
At present, China's shallow lake is seriously polluted, and deposit is its important pollution sources.In particular with the city in basin
Change process and industrial and agricultural development, excessive pollutant are accumulated in deposit, and a large amount of pollutants accumulated in deposit are one
Under fixed condition, change the quality that lake overlying water is had a strong impact on approach such as releases by metamorphosis, interfacial characteristics, cause lake
Moor lasting high pollution.Water/sediment interface is important step and interface, the particularly interface of lake ecosystem material circulation
The change of pH, oxidation-reduction potential and biotic component etc., there is particularly important shadow to Water Environment In Lakes quality and the ecosystem
Ring.Therefore, water/sediment interface is the focus and research emphasis of domestic and international lakes and marhshes scholar concern all the time.It is accurate to obtain in situ sink
The water sample and different depth sediment pore water sample of product thing-water termination are quantitative study sediment pollution flux, commented
Valency sediment pollution feature and the key for studying the microenvironment feature of lake sediment-water interface etc..
Research to water/sediment interface process, generally takes out deposit by oversampler from lake, using obtaining
Gap water sample and interface overlying water sample be used for water/sediment interface process research.
But traditional sampler has following defect：1st, legacy sampler is in the area such as alluvial flat, gravel size be larger
Smoothly it can not insert in deposit.2nd, sampler is mainly designed to dash forward to observe the element variations such as Water-sediment interface
Become area, the change of middle element, traditional sampler resolution ratio is single, to the sensitizing ranges such as overlying water-deposit and other regions
Resolution ratio is identical, but nature water body in Water-sediment interface due to the mutation of electrochemical conditions and composition, be element transformation with
The saltation zone of conversion, therefore, traditional sampler are not enough to carry out important region careful and high-resolution collection and test.
3rd, traditional sampler design only 2 row or 1 row, and total amount only has 4000 microlitres, and therefore, sample size is only sufficient to complete part member
Plain micro-analysis.Therefore how to provide a kind of using water body is wider, high-resolution gathers, individual layer collection sample size is big, analysis test
Scope with can the big sampler of quantity of test index be those skilled in the art's urgent problem to be solved.
In view of this, it is special to propose the present invention.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, the first object of the present invention is to propose a kind of Sediment Interface Interstitial Water high-resolution sampler.Specific skill
Art scheme is as follows：
A kind of Sediment Interface Interstitial Water high-resolution sampler, including sampling plate, the sampling plate top are provided with Handheld Division,
The sampling plate is from top to bottom disposed with first level press strip mounting groove, collection overlying water and overlying water-deposition interface
First sample region, the second sample region for gathering deposit and the second horizontal press strip mounting groove, first sample region is by up to
Multiple rows of multiple row first level groove is had, second sample region is provided with multiple rows of horizontal groove of multiple row second, first water
Flat grooves, the columns of the second horizontal groove are at least three row, and the first level groove in second horizontal groove with adding
There is deionized water, the first level groove, the second horizontal groove are by compressing first sample region and the second sample region
Permeable membrane is semiclosed, and the first level groove is identical with the horizontal length of second horizontal groove, and the first level is recessed
The vertical width of groove is less than second horizontal groove, and the depth of the first level groove is more than second horizontal groove,
Vertical press strip mounting groove, the first level pressure are provided with described in adjacent each column between first level groove, the second horizontal groove
The press strip of the fixed permeable membrane is installed in bar mounting groove, the second horizontal press strip mounting groove and vertical press strip mounting groove.
According to Sediment Interface Interstitial Water high-resolution sampler provided by the invention, handheld handle is devised, not only can be with
Deep lake is used for by the sedimentation collection of sampling plate weight by tether rope, and can be held in water bodys such as alluvial flats, is deposited
The collection of thing Interstitial Water and overlying water, it is effectively increased the applicable water body type of sampler；The present invention is to covering water-deposit etc.
Sensitizing range Encryption Design, the high-resolution collection in water-deposit sensitive interface can be realized, and individual layer collection sample size is big
It is big to improve, analysis test scope with can the quantity of test index greatly promote.
In addition, following additional skill is also had according to a kind of Sediment Interface Interstitial Water high-resolution sampler provided by the invention
Art feature：
According to the example of the present invention, the horizontal length of the first level groove × vertical width x depth is 55 ×
3.5 × 10mm, each column interval 1.5mm, the row of totally 4 row 10；The horizontal length of second horizontal groove × vertical width x depth
For 55 × 8 × 6mm, each column interval 2mm, the row of totally 4 row 20.
According to the example of the present invention, the sampling plate, first level groove, the material of the second horizontal groove include poly-
Ethene.
According to the example of the present invention, the material of the press strip is polypropylene.
According to the example of the present invention, the bottom of the sampling plate sets the triangular prism inserted beneficial to sampling plate in deposit
The insertion end of shape.
According to the example of the present invention, resistive force sensor is installed at the inclined plane of the insertion end of triangle column, it is described
Resistive force sensor is connected with extraneous terminal, and the resistive force sensor detects the data message and by the data of being obstructed of inclined plane in real time
Information transmission is to the extraneous terminal, and the extraneous terminal is interior to be provided with resistance preset value, when what resistive force sensor detected is obstructed
When data message is more than the resistance preset value, the extraneous terminal carries out alarm.
According to the example of the present invention, the Handheld Division is provided with opening, the Handheld Division bottom and the sampling plate
Top is hinged, and the Handheld Division is provided with least one the first vertical screwed hole through the Handheld Division, the sampling plate
Top is provided with the second screwed hole to match with first screwed hole, is provided with and second spiral shell in first screwed hole
The screw rod that pit is connected, the top of the screw rod are provided with knob.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Fig. 1 is the structural representation of the Sediment Interface Interstitial Water high-resolution sampler of the present embodiment；
Fig. 2 is the side view of the Sediment Interface Interstitial Water high-resolution sampler of the present embodiment；
Fig. 3 is the Handheld Division schematic diagram of the Sediment Interface Interstitial Water high-resolution sampler of the present embodiment.
Embodiment
Embodiments of the invention are described below in detail, the example of embodiment is shown in the drawings, wherein identical from beginning to end
Or similar label represents same or similar element or the element with same or like function.Retouched below with reference to accompanying drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings come be described in detail according to the present invention a kind of Sediment Interface Interstitial Water high-resolution sampler.
With reference to shown in accompanying drawing 1-3, a kind of Sediment Interface Interstitial Water high-resolution sampler is present embodiments provided, including adopt
Model 1, sampling plate top are provided with Handheld Division 2, and traditional lacustrine deposit Interstitial Water that is mainly used in gathers with overlying water, but in river
Overbank, gravel size is larger, and traditional sampler can not be inserted smoothly in deposit, and therefore, applicant improves sampler
Structure, devise Handheld Division 2, not only can by tether rope be used for deep lake by sampling plate weight sedimentation collection, Er Qieke
To hold the collection that sediment interstitial water and overlying water are carried out in water bodys such as alluvial flats, being applicable for sampler is effectively increased
Water body type.
The sampling plate 1 of the present embodiment be from top to bottom disposed with first level press strip mounting groove 3, collection overlying water and on
Cover water-deposition interface the first sample region, gather deposit the second sample region and the second horizontal press strip mounting groove 4, first
Sample region is from top to bottom provided with multiple rows of multiple row first level groove 5, and the second sample region is provided with multiple rows of the second horizontal groove of multiple row 6,
First level groove 5, the columns of the second horizontal groove 6 are four row, and first level groove is gone with being added with the second horizontal groove
Ionized water, first level groove, the second horizontal groove (are not shown by compressing the permeable membrane of the first sample region and the second sample region
Go out) it is semiclosed, the specification of first level groove is 55 × 3.5 × 10mm, often arranges the interval 1.5mm of groove, totally 4 × 10 lattice,
7700 microlitres；55 × 8 × 6mm of specification of second horizontal groove, interval 2mm is often arranged, totally 4 × 20 lattice, 10560 microlitres.Adjacent
Vertical press strip mounting groove 7, first level press strip mounting groove, are provided between each column first level groove 5, the second horizontal groove 6
The press strip (not shown) of the fixed permeable membrane is installed in two horizontal press strip mounting grooves and vertical press strip mounting groove.
Specifically, the sampling plate of the present embodiment is divided into 3 positions.Top for isosceles trapezoid shape, upper bottom 92mm, under
Bottom 292mm, high 98mm, un-grooved distribution, it is Handheld Division 2, the handle of Handheld Division 2 is oval for hollow out, oval arc radius 15mm,
Total length 122mm, width 30mm；Middle part is groove (i.e. first level groove, the second horizontal groove) Germ distribution, is rectangle side
Frame, specification are 286 × 292 × 15mm, and groove is away from middle part top edge 13.5mm, and away from lower edge 24mm, groove is away from both sides of the edge
12mm.The arc groove of the compacting permeable membrane of the box shape of square frame surrounding tool insertion, away from both sides of the edge 3mm, away from top edge 0mm,
Away from lower edge 15mm, arc radius 3mm, groove depth 6mm, have the groove of vertical same size and effect inside square frame, totally three row,
Communicated with the groove of square frame surrounding；The insertion end 8 of bottom is triangular prism, and side is right angled triangle, and specification is 50 × 15mm, just
Inserted in sampling plate in deposit.
Specifically, the permeable membrane specification of the present embodiment is 0.45 μm, it uses the press strip of polypropylene material to be compacted, and makes its tight
It is close to be attached on sampling plate.The permeable membrane, which utilizes, balances penetration theory, in selectively permeable Interstitial Water.The present embodiment gathers
Propylene material press strip is used to be compacted 0.45 μm of permeable membrane, is adhering closely on sampling plate so that each cell compartment forms relatively only
Vertical environment, mutually leaping up, disturb for sample room is prevented, so as to preferably provide the spatial positional information of Interstitial Water intermediate ion.
In addition, applicant has found during experiment, when insertion end 8 is inserted into the deposit for comparing and sticking together, often
It is difficult to extract, and fixed Handheld Division is not only bad for extraction, and is easily damaged during using machinery and rope is extracted
It is bad to arrive the present apparatus, therefore applicant is improved Handheld Division, as shown in figure 3, the bottom of Handheld Division 2 and the top of sampling plate
Be hinged, Handheld Division 2 is provided with least one the first vertical screwed hole 1 through Handheld Division, and the top of sampling plate 1 is provided with and first
The second screwed hole 101 that screwed hole 201 matches, the screw rod 9 being connected with the second screwed hole, spiral shell are installed in the first screwed hole
The top of bar 9 is provided with knob 10, so, the angle of Handheld Division can be adjusted when needing to extract sampling plate, is easy to extract sampling
Plate, it is not only laborsaving but also the structures such as permeable membrane will not be damaged.
More favourable, applicant is also improved to above-mentioned insertion end 8, and this is due to it has been found that using machine
When tool inserts sampling plate, tend to cause the damage of device, this is due to that the structure of the sedimentary of bottom is not known about, and is being met
Caused by inserting sampling plate by force to plant equipment None- identified during more hard structure, therefore applicant is in triangle column
Insertion end 8 inclined plane at resistive force sensor (not shown) is installed, resistive force sensor is connected with extraneous terminal, resistance sensing
Device detects being obstructed for inclined plane and data message and the data message is sent into extraneous terminal in real time, and resistance is provided with extraneous terminal
Preset value, when the data message that is obstructed that resistive force sensor detects is more than resistance preset value, extraneous terminal carries out alarm, and this is outer
Boundary's terminal can be the electronic equipments such as mobile phone.
Specific method of preparation and use with reference to the Sediment Interface Interstitial Water high-resolution sampler of the present embodiment is entered
Row explanation：
Early-stage preparations：0.45 μm of permeable membrane, which is cut into, can cover the reeded strip of institute, edge have more 0.6cm with
On, put it into HNO3 solution and soak, after being washed with deionized water only, be put into deionized water and preserve；Sampling plate is put simultaneously
Enter in HNO3 and soak, net rear drying is washed with deionized water；
Device assembles：Sampling plate is lain in a horizontal plane in the groove for filling deionized water, after excluding bubble, permeable membrane existed
Cover body surfaces, it is ensured that permeable membrane is adjacent to body surfaces, then presses ceiling molding, and permeable membrane and main body are fixed；
Device nitrogen charging：The device assembled is put into deionized water, to water body nitrogen charging, to remove the oxygen in device；
Device is placed：For alluvial flat, device can be inserted perpendicularly into deposit with handheld handle, if lake sediment
Collection, can tether rope using sampling plate self gravitation sink insertion deposit in.Water/sediment interface 2-4cm maintained above, puts
More than 24h, preferably 48-72h are put, water body in sampling cell compartment is diffused with the ion in sediment interstitial water and is reached flat
Weighing apparatus；
Device reclaims：The device is taken out, is judged according to the deposit marking on the device and records water/sediment interface position
Put；
Gap water sample freezing：Sampling apparatus is quickly charged with to clean sealed bag after cleaning sampling apparatus, by sealed bag
With osmosis membrane and being adjacent to, stainless steel substrates cover all sampling cell compartments in pressure, will sample gap water sample in cell compartment with it is empty
Air bound is exhausted；Dry ice cooling agent is sprayed to steel disc surface, until the gap water sample in sampling cell compartment is frozen into ice, then will sampling
Device preserves in the case where temperature is less than -10 DEG C；
Interstitial Water sample：After sampling apparatus is taken out, remove steel disc and sealed bag, cleaning permeable membrane remained on surface
Sedimentary particle, then in permeable membrane surface plastic covering film, cell compartment internal clearance water sample and air will be sampled by compressing plastic foil
Isolation；Isolation air post-sampling device thaws at room temperature, opens plastic foil, is drawn successively in sampling cell compartment after piercing through permeable membrane
Gap water sample for analysis.
In summary, the Sediment Interface Interstitial Water high-resolution sampler provided according to the present embodiment has below beneficial to effect
Fruit：
1st, it is wider to be applicable water body：Traditional lacustrine deposit Interstitial Water that is mainly used in gathers with overlying water, but in alluvial flat,
Gravel size is larger, and traditional sampler can not be inserted smoothly in deposit, and therefore, we improve the device of sampler,
Handheld handle is devised, deep lake can be not only used for by tether rope by the sedimentation collection of sampling plate weight, and can hold
In water bodys such as alluvial flats, the collection of sediment interstitial water and overlying water is carried out, is effectively increased the applicable water body class of sampler
Type.
2nd, gathered in the high-resolution of water-deposit sensitive interface：Collector is mainly designed to observe water-deposit
The element variation saltation zone such as interface, the change of middle element.Traditional sampler, resolution ratio is single, quick to overlying water-deposit etc.
Sensillary area domain and other regional resolutions are identical, and still, nature water body is in Water-sediment interface due to electrochemical conditions and composition
Mutation, it is element transformation and the saltation zone of conversion, therefore, it is careful and high to important region progress that traditional sampler is not enough to
The collection and test of resolution, still, the design is in the sensitizing range such as overlying water-deposit Encryption Design, not only to sensitizing range
Water body has carried out more high-resolution collection, and the adjustment of resolution ratio is carried out to remaining region, and not increasing, analysis test is negative
Under conditions of load, high-resolution collection is carried out to key area, other regions are then moderately reduced and differentiated, design is more reasonable, more
Meet the purpose of research.
3rd, individual layer collection sample size greatly improves, analysis test scope with can the quantity of test index greatly promote：Tradition
Sampler design, only 2 row or 1 row, and total amount only has 4000 microlitres, and therefore, sample size is only sufficient to complete Partial Elements micro-
Amount analysis, and the sampler after our improvement, high-resolution area volume can reach 7700 microlitres, other groove volumes reach
10560 microlitres, individual layer concrete water quality greatly increases, and not only meets the test request to trace element analysis such as icp-ms, but also
It can be used for ion chromatography, ICP-OES, while meet to require larger traditional analysis to sample size, be such as divided light
Degree method analysis (3000-4000 microlitres), volumetric method (3000-4000 microlitres)；And the special devices such as microelectrode need not be configured, it is general
Logical pH-Eh meters can be used to determine the indexs such as the pH and Eh of Interstitial Water and overlying water
4th, sampling apparatus intensity is big, not cracky.The present apparatus uses polyethylene material, and specification is relative to sampling cartridge before
It is much bigger to put specification, improves its intensity, not cracky, can be used repeatedly.
5th, triangle rod structure in bottom is beneficial in sampling plate insertion deposit.The present apparatus is simultaneously due to horizontal longer upwards
Its intensity is improved, sampling plate is thickened, so as to increase the resistance of sampling plate insertion deposit, therefore, its bottom is set
Triangle rod structure is calculated as, drag effect can be reduced, is easy in sampling plate insertion deposit.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The indicating positions relation such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " is to be closed based on orientation shown in the drawings or position
System, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (7)
1. a kind of Sediment Interface Interstitial Water high-resolution sampler, it is characterised in that including sampling plate, set at the top of the sampling plate
There is a Handheld Division, the sampling plate is from top to bottom disposed with first level press strip mounting groove, collection overlying water and overlying water-heavy
First sample region at product interface, the second sample region for gathering deposit and the second horizontal press strip mounting groove, first sampling
Area is from top to bottom provided with multiple rows of multiple row first level groove, and second sample region is provided with multiple rows of horizontal groove of multiple row second, institute
State first level groove, the columns of the second horizontal groove is at least three row, the first level groove and described second horizontal recessed
Deionized water is added with groove, the first level groove, the second horizontal groove are by compressing first sample region and second
The permeable membrane of sample region is semiclosed, and the first level groove is identical with the horizontal length of second horizontal groove, and described
The vertical width of one horizontal groove is less than second horizontal groove, and the depth of the first level groove is more than second water
Flat grooves, are provided with vertical press strip mounting groove between first level groove, the second horizontal groove described in adjacent each column, and described first
The pressure of the fixed permeable membrane is installed in horizontal press strip mounting groove, the second horizontal press strip mounting groove and vertical press strip mounting groove
Bar.
2. Sediment Interface Interstitial Water high-resolution sampler according to claim 1, it is characterised in that the first level
The horizontal length of groove × vertical width x depth is 55 × 3.5 × 10mm, each column interval 1.5mm, the row of totally 4 row 10；Described
The horizontal length of two horizontal grooves × vertical width x depth is 55 × 8 × 6mm, each column interval 2mm, the row of totally 4 row 20.
3. Sediment Interface Interstitial Water high-resolution sampler according to claim 1, it is characterised in that the sampling plate,
First level groove, the material of the second horizontal groove include polyethylene.
4. Sediment Interface Interstitial Water high-resolution sampler according to claim 1, it is characterised in that the material of the press strip
Matter is polypropylene.
5. Sediment Interface Interstitial Water high-resolution sampler according to claim 1, it is characterised in that the sampling plate
Bottom sets the insertion end for the triangle column inserted beneficial to sampling plate in deposit.
6. Sediment Interface Interstitial Water high-resolution sampler according to claim 5, it is characterised in that triangle column is inserted
Enter and resistive force sensor is installed at the inclined plane at end, the resistive force sensor is connected with extraneous terminal, and the resistive force sensor is real
When detect being obstructed for inclined plane and data message and the data message be sent to the extraneous terminal, be provided with the extraneous terminal
Resistance preset value, when the data message that is obstructed that resistive force sensor detects is more than the resistance preset value, the extraneous terminal
Carry out alarm.
7. Sediment Interface Interstitial Water high-resolution sampler according to claim 1, it is characterised in that the Handheld Division is set
There is opening, the Handheld Division bottom and the top of the sampling plate are hinged, and the hand is run through in the Handheld Division provided with least one
The first vertical screwed hole in portion is held, the top of the sampling plate is provided with the second screw thread to match with first screwed hole
Hole, the screw rod being connected with second screwed hole is installed in first screwed hole, the top of the screw rod is provided with knob.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387400A (en) * | 2018-05-28 | 2018-08-10 | 南京信息工程大学 | A kind of Sediment Pore Water original position high-resolution sampler |
| CN111141641A (en) * | 2020-02-25 | 2020-05-12 | 南京智感环境科技有限公司 | Improved sediment-water interface pollutant maximum diffusion flux in-situ sampling device, detection device and detection method |
| WO2020237604A1 (en) * | 2019-05-30 | 2020-12-03 | 王瑞 | Self-moving sediment interstitial water collection device |
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| CN204439408U (en) * | 2015-03-19 | 2015-07-01 | 长春黄金研究院 | A kind of passive sampling apparatus of persistence organic pollutant |
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Application publication date: 20171212 |