CN110068664A - A kind of BOD5Measure water sample reagent bottle - Google Patents
A kind of BOD5Measure water sample reagent bottle Download PDFInfo
- Publication number
- CN110068664A CN110068664A CN201910453553.5A CN201910453553A CN110068664A CN 110068664 A CN110068664 A CN 110068664A CN 201910453553 A CN201910453553 A CN 201910453553A CN 110068664 A CN110068664 A CN 110068664A
- Authority
- CN
- China
- Prior art keywords
- bottle
- bottle stopper
- overflow
- injection
- check valve
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 239000003153 chemical reaction reagent Substances 0.000 title claims abstract description 35
- 241001411320 Eriogonum inflatum Species 0.000 claims abstract description 104
- 238000002347 injection Methods 0.000 claims abstract description 76
- 239000007924 injection Substances 0.000 claims abstract description 76
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 238000003760 magnetic stirring Methods 0.000 claims abstract description 14
- 230000010354 integration Effects 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 7
- 239000003814 drug Substances 0.000 abstract description 4
- 229940079593 drug Drugs 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000013019 agitation Methods 0.000 description 8
- 238000003756 stirring Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- NLLBACCRJXJHPL-UHFFFAOYSA-M [N-]=[N+]=[N-].[Na+].[I-].[K+] Chemical compound [N-]=[N+]=[N-].[Na+].[I-].[K+] NLLBACCRJXJHPL-UHFFFAOYSA-M 0.000 description 1
- 150000007516 brønsted-lowry acids Chemical class 0.000 description 1
- 150000007528 brønsted-lowry bases Chemical class 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940099596 manganese sulfate Drugs 0.000 description 1
- 239000011702 manganese sulphate Substances 0.000 description 1
- 235000007079 manganese sulphate Nutrition 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/45—Magnetic mixers; Mixers with magnetically driven stirrers
- B01F33/452—Magnetic mixers; Mixers with magnetically driven stirrers using independent floating stirring elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/50—Containers for the purpose of retaining a material to be analysed, e.g. test tubes
- B01L3/508—Containers for the purpose of retaining a material to be analysed, e.g. test tubes rigid containers not provided for above
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1806—Biological oxygen demand [BOD] or chemical oxygen demand [COD]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/23—Mixing of laboratory samples e.g. in preparation of analysing or testing properties of materials
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Biomedical Technology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Hematology (AREA)
- Clinical Laboratory Science (AREA)
- Emergency Medicine (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
A kind of BOD5Measure water sample reagent bottle, the bottle stopper including bottle body, the bottleneck for filling in bottle body, it is characterised in that: further include the bottle stopper being mounted on bottle stopper;It is equipped with the overflowing liquid being made into integration with bottle body on the outside of bottleneck and collects U-lag;Overflow check valve and injection check valve are installed, overflow check valve connects the overflow port of bottle stopper, the space also in overflow pipe connection bottle body, the injection port of injection check valve connection bottle stopper, the space also in injection-tube connection bottle body in bottle stopper;Bottle stopper includes permanent magnet, and permanent magnet is mounted on bottle stopper upper end, and bottle stopper can control overflow check valve and inject the opening of check valve.The beneficial effects of the invention are as follows, energy once sealing water sample to be measured, and in the case where not opening bottle stopper, drug can be repeatedly added by injection port, and be stirred by magnetic stirring bar, in entire measurement process, sample is remained with atmosphere is isolated, the accuracy that ensure that measurement result reduces operator's working strength.
Description
Technical field
The present invention relates to a kind of liquid containing reagent bottle technical field, in particular to a kind of BOD5Water sample reagent bottle is measured,
That is BOD5Water sample reagent bottle used in measurement.
Background technique
According to BOD as defined in standard HJ505-20095In measuring method, in entire measurement process, need successively to be added
Manganese sulfate solution, alkaline potassium iodide sodium azide solution, sulfuric acid solution, since water sample reagent bottle is the water obtained using press over system
Sample when each chemical reagent being added again, needs to open bottle stopper and reagent is added and seals water sample with bottle stopper again, it is extra to have at this time
Liquid overflows, and testing staff, which needs to topple over after sealing, overflows waste liquid and mechanical concussion water sample reagent bottle, in whole operation process
In the sample drug mixed liquor containing bronsted lowry acids and bases bronsted lowry scatter desktop or splash operator's skin, on clothes, will cause pollution or
Injury;It needs repeatedly to open water sample reagent bottle bottle stopper during adding drug into water sample reagent bottle simultaneously, makes to acquire water sample
Repeatedly exposure in air, influences measurement result.
Summary of the invention
A kind of in order to compensate for the shortcomings of the prior art, the present invention provides structures BOD simple, easy to use5Measure water
Sample reagent bottle.
The present invention is achieved through the following technical solutions:
A kind of BOD5Measure water sample reagent bottle, the bottle stopper including bottle body, the bottleneck for filling in bottle body, it is characterised in that: also wrap
Include the bottle stopper being mounted on bottle stopper;
It is equipped with the overflowing liquid being made into integration with bottle body on the outside of bottleneck and collects U-lag;
Overflow check valve and injection check valve are installed, overflow check valve connects the overflow port of bottle stopper, also through overflowing in bottle stopper
Flow tube connects space in bottle body, the injection port of injection check valve connection bottle stopper, the space also in injection-tube connection bottle body;
Bottle stopper includes permanent magnet, and permanent magnet is mounted on bottle stopper upper end, and bottle stopper can control overflow check valve and injection
The opening of check valve.
Overflow check valve includes the overflow nonreturn valve core successively contacted, overflow one-way valve spring, overflow check valve plug;It overflows
Stream check valve plug is mutually fixed on bottle stopper, and the side of bottle stopper is equipped with the overflow port of connection overflow valve chamber, and the connection of bottle stopper lower part is overflow
Flow tube, overflow nonreturn valve core are used to block the overflow port in overflow pipe upper end, and overflow port position is higher than overflow check valve seal,
Overflow pipe lower end is located in bottle body.
Injection check valve includes the injection inner elements of check valve successively contacted, injection one-way valve spring, injection-tube, on injection-tube
The injection check valve that end is fixed on bottle stopper is intracavitary, lower end is located in bottle body, and injection inner elements of check valve upper end is slidably seated in note
Loophole is interior, lower end is intracavitary positioned at injection check valve, injects the lower end of inner elements of check valve for blocking injection port, injects one-way valve
There is gap between the middle and upper part and injection port of core, gap is used for injecting fluid.
Bottle stopper is detachably arranged on bottle stopper, and bottle stopper can reuse.
The permanent magnet outer sheath rubber sleeve of bottle stopper, bottle stopper are covered by rubber sleeve close and firm on bottle stopper top,
Gas vent is provided among bottle stopper and rubber sleeve, gas vent is connected to injection port, so that air in bottle is discharged, and is vented bore dia
Less than injection port diameter;There is a circle raised on the outside of permanent magnet, has a circle groove on the inside of rubber sleeve, groove covers in protrusion, makes forever
Magnet is firmly combined with rubber sleeve.
Overflow check valve plug and overflow nonreturn valve core are permeability magnetic material, can be adsorbed by magnet;Injecting nonreturn valve core is forever
Magnet, the upper end magnetic pole are identical as bottle stopper bottom magnetic pole, mutually exclusive.
Injection-tube lower end is higher than overflow pipe lower end certain altitude, prevents the liquid flooding being just injected into from going out;Injection-tube is deep
Entering liquid length D1 is 2-3cm, and overflow nozzle is 3-5cm away from bottom of bottle D2, to guarantee not influence when placing magnetic stirring bar in bottle
Agitating function.
Overflowing liquid collects U-lag outer edge and is higher than bottleneck, prevents human contact to the overflow port of bottle stopper.
Bottle body and bottle stopper use cone match, and bottle stopper is fully sealed rear bottle stopper upper surface and collects U-type groove higher than overflowing liquid
Outer edge, convenient for extract bottle stopper;Injection port is located at the center line of bottle stopper.
Liquid in bottle is stirred using magnetic stirrer, places magnetic stirring bar in bottle body, bottle body is placed on electromagnetism and stirs
It mixes above seat, electromagnetic agitation seat control magnetic stirring bar carrys out the intracorporal liquid of blender jar, and magnetic stirring bar, electromagnetic agitation seat are constituted
Magnetic stirrer.
The invention has the advantages that energy once sealing water sample to be measured, and in the case where not opening bottle stopper, note can be passed through
Loophole repeatedly adds drug, and is stirred by magnetic stirring bar, in entire measurement process, sample and atmosphere remain every
From ensure that the accuracy of measurement result, reduce operator's working strength.And extra waste liquid can be automatically drained out U-lag,
Overflowing liquid is outwelled before opening bottle stopper, skin, clothes, the desktop of pollution operator is effectively prevent, avoids to operation
The injury of personnel.The difference in height of overflow nozzle lower end and injection nozzle lower end can prevent injection reagent from directly passing through overflow pipe stream
Out, guarantee quality of experiments.It present invention can be suitably applied to hand injection and automatic injection reagent, versatility is high.
Detailed description of the invention
Fig. 1 is front view schematic diagram of the invention.
In figure: 1 bottle body, 2 bottle stoppers, 3 overflow inner elements of check valve, 4 overflow ports, 5 overflow one-way valve springs, 6 overflow check valves
Plug, 7 bottle stopper rubber sleeves, 8 bottle stopper permanent magnets, 9 injection ports, 10 injection inner elements of check valve, 11 injection one-way valve springs, 12
Injection-tube, 13 overflow pipes, 14 overflowing liquids collect U-type groove, 15 gas vents, 16 magnetic stirring bars, 17 electromagnetic agitation seats, 18 protrusions.
Specific embodiment
Attached drawing is a kind of specific embodiment of the invention.
A kind of BOD5Water sample reagent bottle is measured, the bottle stopper 2 including bottle body 1, the bottleneck for filling in bottle body, further includes being mounted on bottle
Bottle stopper beyond the Great Wall;
It is equipped with the overflowing liquid being made into integration with bottle body on the outside of bottleneck and collects U-lag 14;
Overflow check valve and injection check valve are installed, overflow check valve connects the overflow port 4 of bottle stopper, also through overflowing in bottle stopper
Flow tube 13 connects space in bottle body, and the injection port 9 of injection check valve connection bottle stopper also connects space in bottle body through injection-tube 12;
Bottle stopper includes permanent magnet 8, and permanent magnet is mounted on bottle stopper upper end, and bottle stopper can control overflow check valve and injection
The opening of check valve.
Overflow check valve includes the overflow nonreturn valve core 3 successively contacted, overflow one-way valve spring 5, overflow check valve plug
6;Overflow check valve plug is mutually fixed on bottle stopper, and the side of bottle stopper is equipped with the overflow port 4 of connection overflow valve chamber, and bottle stopper lower part connects
Overflow pipe 13 is connect, overflow nonreturn valve core is used to block the overflow port in overflow pipe upper end, and overflow port position is higher than overflow check valve
Seal, overflow pipe lower end are located in bottle body.
Injection check valve includes the injection inner elements of check valve 10 successively contacted, injection one-way valve spring 11, injection-tube 12, note
Penetrate pipe upper end be fixed on bottle stopper injection check valve is intracavitary, lower end is located in bottle body, injection inner elements of check valve upper end is slidable
In injection port, that lower end is located at injection check valve is intracavitary, injects the lower end of inner elements of check valve for blocking injection port, injection is single
To there is gap between the middle and upper part and injection port of valve core, gap is used for injecting fluid.
Bottle stopper is detachably arranged on bottle stopper, and bottle stopper can reuse.
The permanent magnet outer sheath rubber sleeve 7 of bottle stopper, bottle stopper are covered by rubber sleeve close and firm on bottle stopper top,
Gas vent 15 is provided among bottle stopper and rubber sleeve, gas vent is connected to injection port 9, so that air in bottle, and gas vent is discharged
Diameter is less than injection port diameter;There is a circle protrusion 18 on the outside of permanent magnet, has a circle groove on the inside of rubber sleeve, groove is covered in protrusion
On, it is firmly combined permanent magnet with rubber sleeve.
Overflow check valve plug and overflow nonreturn valve core are permeability magnetic material, can be adsorbed by magnet;Injecting nonreturn valve core is forever
Magnet, the upper end magnetic pole are identical as bottle stopper bottom magnetic pole, mutually exclusive.
Injection-tube lower end is higher than overflow pipe lower end certain altitude, prevents the liquid flooding being just injected into from going out;Injection-tube is deep
Entering liquid length D1 is 2-3cm, and overflow nozzle is 3-5cm away from bottom of bottle D2, to guarantee not influence when placing magnetic stirring bar in bottle
Agitating function.
Overflowing liquid collects U-lag outer edge and is higher than bottleneck, prevents human contact to the overflow port of bottle stopper.
Bottle body and bottle stopper use cone match, and bottle stopper is fully sealed rear bottle stopper upper surface and collects U-type groove higher than overflowing liquid
Outer edge, convenient for extract bottle stopper;Injection port is located at the center line of bottle stopper.
Liquid in bottle is stirred using magnetic stirrer, places magnetic stirring bar 16 in bottle body, bottle body is placed on electromagnetism
Above stirring seat 17, electromagnetic agitation seat control magnetic stirring bar comes the intracorporal liquid of blender jar, magnetic stirring bar 16, electromagnetic agitation
Seat 17 constitutes magnetic stirrer.
In use, magnetic stirring bar is put into bottle body first and fills water sample to be measured, then bottle stopper is covered on bottle stopper,
At this moment under bottle stopper magneticaction, injection check valve is opened simultaneously with overflow check valve, and bottle stopper is put into bottleneck and is filled in
Tightly.Because injecting check valve at this time and overflow check valve being all opened, when sealing water sample using press over system, injection-tube and overflow pipe
Interior to have gas, extra water sample to be measured is flowed out by overflow port, and overflow water sample is collected by overflow U-type groove.Stopper bottle
After plug, bottle stopper is removed, injection check valve and overflow closed check valve, sample to be tested remain sealing state.
After to water sample sealing, water sample reagent bottle is placed on electromagnetic agitation seat, and according to regulation process by reagent
Pass sequentially through injection port injection water sample in, can be used be manually injected into or automated arm injection.When injection, injection check valve is being infused
It is opened under injection pressure, while when reagent injection, the pressure in the bottle increases, and overflow check valve is opened, and surplus liquid passes through overflow pipe quilt
Discharge, surplus liquid are finally collected in overflowing liquid and collect in U-type groove.After injection stops, overflow closed check valve, injection is unidirectionally
Valve is closed.After each reagent injector, electromagnetic agitation seat is opened, magnetic stirring bar stirs liquid under the effect of electromagnetic agitation seat
Body, until stirring terminates.
Water sample reagent bottle provided by the invention, it is disposable complete water sample sealing after, do not need to open after bottle stopper can be realized
The injection and stirring of continuous reagent ensure that water sample to be measured always with air insulated, reduces operator's work during the experiment
Intensity simultaneously improves detection quality.The water sample reagent bottle can collect the overflowing liquid generated in experimentation simultaneously, until experiment terminates,
Overflowing liquid is outwelled before opening bottle stopper.It present invention can be suitably applied to hand injection and automatic injection reagent, versatility is high.It overflows
The difference in height of flow tube mouth and injection nozzle can prevent injection reagent from directly flowing out by overflow pipe, guarantee quality of experiments.
Claims (9)
1. a kind of BOD5Measure water sample reagent bottle, the bottle stopper including bottle body, the bottleneck for filling in bottle body, it is characterised in that: further include peace
Bottle stopper on bottle stopper;
It is equipped with the overflowing liquid being made into integration with bottle body on the outside of bottleneck and collects U-lag;
Overflow check valve and injection check valve are installed, overflow check valve connects the overflow port of bottle stopper, also through overflow pipe in bottle stopper
Connect space in bottle body, the injection port of injection check valve connection bottle stopper, the space also in injection-tube connection bottle body;
Bottle stopper includes permanent magnet, and permanent magnet is mounted on bottle stopper upper end, and bottle stopper can control overflow check valve and injection is unidirectional
The opening of valve.
2. BOD according to claim 15Measure water sample reagent bottle, it is characterised in that: overflow check valve includes successively contacting
Overflow nonreturn valve core, overflow one-way valve spring, overflow check valve plug;Overflow check valve plug is mutually fixed on bottle stopper, bottle
The side of plug is equipped with the overflow port of connection overflow valve chamber, and bottle stopper lower part connects the overflow pipe, and overflow nonreturn valve core is for blocking
Overflow port in overflow pipe upper end, overflow port position are higher than overflow check valve seal, and overflow pipe lower end is located in bottle body.
3. BOD according to claim 1 or 25Measure water sample reagent bottle, it is characterised in that: injection check valve includes successively connecing
Injection inner elements of check valve, the injection one-way valve spring, the injection-tube of touching, injection-tube upper end is fixed on the injection check valve of bottle stopper
Intracavitary, lower end is located in bottle body, and injection inner elements of check valve upper end is slidably seated in injection port, lower end is located at injection check valve
It is intracavitary, the lower end of inner elements of check valve is injected for blocking injection port, and injecting between the middle and upper part of inner elements of check valve and injection port has
Gap, gap are used for injecting fluid.
4. BOD according to claim 1 or 25Measure water sample reagent bottle, it is characterised in that: bottle stopper is detachably arranged in
On bottle stopper, bottle stopper can be reused.
5. BOD according to claim 1 or 25Measure water sample reagent bottle, it is characterised in that: the permanent magnet outer sheath of bottle stopper
Rubber sleeve, bottle stopper are provided with gas vent among bottle stopper top, bottle stopper and rubber sleeve by covering for rubber sleeve close and firm,
Gas vent is connected to injection port, so that air in bottle is discharged, and is vented bore dia less than injection port diameter;Have one on the outside of permanent magnet
There are a circle groove in circle protrusion, rubber sleeve inside, and groove covers in protrusion, is firmly combined permanent magnet with rubber sleeve.
6. BOD according to claim 35Measure water sample reagent bottle, it is characterised in that: overflow check valve plug and overflow list
It is permeability magnetic material to spool, can be adsorbed by magnet;Injection nonreturn valve core is permanent magnet, the upper end magnetic pole and bottle stopper bottom magnetic pole
It is identical, mutually exclusive.
7. BOD according to claim 1 or 25Measure water sample reagent bottle, it is characterised in that: injection-tube lower end is higher than overflow pipe
Lower end certain altitude prevents the liquid flooding being just injected into from going out;It is 2-3cm, overflow nozzle that injection-tube, which gos deep into liquid length D1,
It is 3-5cm away from bottom of bottle D2, to guarantee not influence agitating function when placing magnetic stirring bar in bottle.
8. BOD according to claim 1 or 25Measure water sample reagent bottle, it is characterised in that: overflowing liquid is collected outside U-lag
Edge is higher than bottleneck, prevents human contact to the overflow port of bottle stopper.
9. BOD according to claim 1 or 25Measure water sample reagent bottle, it is characterised in that: bottle body and bottle stopper are matched using the conical surface
It closes, and the outer edge that rear bottle stopper upper surface collects U-type groove higher than overflowing liquid is fully sealed in bottle stopper, convenient for extracting bottle stopper;Injection port
Positioned at the center line of bottle stopper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910453553.5A CN110068664B (en) | 2019-05-28 | 2019-05-28 | BOD (BOD)5Reagent bottle for measuring water sample |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910453553.5A CN110068664B (en) | 2019-05-28 | 2019-05-28 | BOD (BOD)5Reagent bottle for measuring water sample |
Publications (2)
Publication Number | Publication Date |
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CN110068664A true CN110068664A (en) | 2019-07-30 |
CN110068664B CN110068664B (en) | 2024-05-28 |
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Application Number | Title | Priority Date | Filing Date |
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CN201910453553.5A Active CN110068664B (en) | 2019-05-28 | 2019-05-28 | BOD (BOD)5Reagent bottle for measuring water sample |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113092662A (en) * | 2021-04-08 | 2021-07-09 | 甘肃农业大学 | Carbon determination device based on potassium dichromate volumetric method and determination method thereof |
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EP0386290A1 (en) * | 1989-03-08 | 1990-09-12 | Hsien-Chang Lin | Overflow-preventive bottle stopper |
CN203108552U (en) * | 2013-03-06 | 2013-08-07 | 李冬丽 | Multi-purpose chemical reagent bottle |
WO2014135856A1 (en) * | 2013-03-04 | 2014-09-12 | Forte Medical Limited | Urine collection device |
CN106525648A (en) * | 2016-10-31 | 2017-03-22 | 上海化工研究院 | Piston overflow type zero-headspace extractor test device and method thereof |
CN207741977U (en) * | 2017-10-24 | 2018-08-17 | 天津市海正泰克塑胶制品有限公司 | A kind of urine collecting device |
CN208632081U (en) * | 2018-07-11 | 2019-03-22 | 珠海隆康电子科技有限公司 | A kind of anti-overflow filling head |
CN209946138U (en) * | 2019-05-28 | 2020-01-14 | 菏泽学院 | BOD (Biochemical oxygen demand)5Reagent bottle for measuring water sample |
-
2019
- 2019-05-28 CN CN201910453553.5A patent/CN110068664B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0386290A1 (en) * | 1989-03-08 | 1990-09-12 | Hsien-Chang Lin | Overflow-preventive bottle stopper |
WO2014135856A1 (en) * | 2013-03-04 | 2014-09-12 | Forte Medical Limited | Urine collection device |
CN203108552U (en) * | 2013-03-06 | 2013-08-07 | 李冬丽 | Multi-purpose chemical reagent bottle |
CN106525648A (en) * | 2016-10-31 | 2017-03-22 | 上海化工研究院 | Piston overflow type zero-headspace extractor test device and method thereof |
CN207741977U (en) * | 2017-10-24 | 2018-08-17 | 天津市海正泰克塑胶制品有限公司 | A kind of urine collecting device |
CN208632081U (en) * | 2018-07-11 | 2019-03-22 | 珠海隆康电子科技有限公司 | A kind of anti-overflow filling head |
CN209946138U (en) * | 2019-05-28 | 2020-01-14 | 菏泽学院 | BOD (Biochemical oxygen demand)5Reagent bottle for measuring water sample |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113092662A (en) * | 2021-04-08 | 2021-07-09 | 甘肃农业大学 | Carbon determination device based on potassium dichromate volumetric method and determination method thereof |
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