CN110496656A - It is a kind of can the multiple and different capacity of constant volume volumetric flask - Google Patents
It is a kind of can the multiple and different capacity of constant volume volumetric flask Download PDFInfo
- Publication number
- CN110496656A CN110496656A CN201910825955.3A CN201910825955A CN110496656A CN 110496656 A CN110496656 A CN 110496656A CN 201910825955 A CN201910825955 A CN 201910825955A CN 110496656 A CN110496656 A CN 110496656A
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- China
- Prior art keywords
- volumetric flask
- constant volume
- capacity
- neck
- solution
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- Pending
Links
- 239000011521 glass Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 5
- 229940079593 drug Drugs 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 22
- 239000007788 liquid Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 3
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- CMMUKUYEPRGBFB-UHFFFAOYSA-L dichromic acid Chemical compound O[Cr](=O)(=O)O[Cr](O)(=O)=O CMMUKUYEPRGBFB-UHFFFAOYSA-L 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005499 meniscus Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000219 mutagenic Toxicity 0.000 description 1
- 230000003505 mutagenic effect Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
- 239000010891 toxic waste Substances 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F19/00—Calibrated capacity measures for fluids or fluent solid material, e.g. measuring cups
Landscapes
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The present invention relates to equipment of chemical industry technical fields, particularly, are related to a kind of volumetric flask, and in particular to it is a kind of can the multiple and different capacity of constant volume volumetric flask.It is of the present invention can the multiple and different capacity of constant volume volumetric flask, it include: body, neck and bottle plug, exterior sets a plurality of graduation mark and corresponding capacity number mark, an intermediate graduation mark designs volume for volumetric flask, wherein water conservancy diversion is protruded into being equipped with bulging structure close to bottleneck portion convenient for glass bar, " measuring " is indicated when groove indicates the solution capacity measured, when groove expression measure into liquor capacity when indicate " measure into " or do not mark.The present invention improves the constant volume precision of volumetric flask, facilitates the actual concentrations for calculating solution, can only discard the cumbersome of reconfiguration when occurring amount of solution when avoiding constant volume more than graticule, save drug and solvent, improved efficiency；The solution of accurate constant volume directly can be poured out into use when elected " measuring " formula volumetric flask, eliminate the cumbersome and its error with pipette.
Description
Technical field
The present invention relates to equipment of chemical industry technical fields, particularly, are related to a kind of volumetric flask, and in particular to one kind can determine
Hold the volumetric flask of multiple and different capacity.
Background technique
Volumetric flask is a kind of Container that thin neck pyriform is flat, mostly glass material, also there is transparent plastics material, be for
Prepare the fine instrument of the accurately solution of certain substance withdrawl syndrome.Volumetric flask has ground glass stopper, usually has on neck
One graticule, when indicating that the graticule of liquid concave meniscus and capacity neck part is tangent at signified temperature, liquor capacity is just and on bottle
The volume of mark is equal.It is indicated on volumetric flask: temperature, capacity, graduation mark.Volumetric flask with it is more be " measure into " formula,
Have and carve two graticules, above one indicate the volume measured.Volumetric flask there are many specification, it is small have 5ml, 25ml, 50ml,
100ml, big has 250ml, 500ml, 1000ml, 2000ml etc., it is mainly used for direct method preparing standard solution and accurate dilute
It releases solution and prepares sample solution.
Existing volumetric flask in use volumetric flask can only one specific capacity of constant volume, utilization rate is inadequate
Height, precision are also not high enough.Volumetric flask is often used cooperatively with pipette, and the redundant solution quilt in volumetric flask is remained in after usual liquid relief
It discards, causes to waste, it is not environmentally friendly enough, also uneconomical if needing specially treated that could discharge containing poisonous and hazardous ingredient.Constant volume
There is amount of solution more than graticule in Shi Jingchang, have to discard, reconfigure, and not only wastes drug, solvent, but also reduces work effect
Rate.
Summary of the invention
The present invention provides it is a kind of can the multiple and different capacity of constant volume volumetric flask, solving a volumetric flask can only constant volume one
The problem of a specific capacity, avoids the waste of drug, solvent, improves constant volume precision and working efficiency.
To achieve the above object, the present invention provides it is a kind of can the multiple and different capacity of constant volume volumetric flask, comprising: body,
Neck and bottle plug, the outer surface of the neck set a plurality of graduation mark and capacity number mark；
One among a plurality of graduation mark is designed volume for volumetric flask；
Preferably, the body is flat container；
It is further preferred that the body is the flat structure of pyriform；
Preferably, the neck can be elongated cylinder structure；
Preferably, the close bottleneck portion of the neck is equipped with bulging structure, convenient for glass in the too small situation of neck internal diameter
Stick protrudes into wherein water conservancy diversion and enters volumetric flask；
A certain numerical value of the volume of a plurality of graduation mark part of the neck between 1~20mL；
Preferably, a certain numerical value of the volume of a plurality of graduation mark part of the neck between 2~15mL；
It is further preferred that a certain numerical value of the volume of a plurality of graduation mark part of the neck between 5~10mL；
The groove indicates to indicate " measuring " (not shown) above the solution capacity time line measured；
The groove expression measure into liquor capacity time line above indicate " measure into " or do not mark.
Described one kind can the multiple capacity of constant volume volumetric flask material be transparent glass, transparent plastic or it is other it is transparent not
The material reacted with to constant volume solution component.
One kind of the present invention can the multiple and different capacity of constant volume volumetric flask, have compared with the volumetric flask of the prior art as follows
Advantage: (1) a plurality of graduation mark is arranged in neck, convenient for reading accurate liquor capacity in constant volume operating process, facilitates calculating molten
The actual concentrations of liquid, when occurring the graticule that amount of solution is more than design capacity when avoiding constant volume due to can not determine it is exceeded how many and
It can only discard and reconfigure cumbersome, also a save drug and solvent, improve work efficiency；(2) neck is thinner, improves reading
Number precision；(3) directly the solution of the design capacity shaken up can be poured out when the groove indicates the solution capacity measured, is saved
With the cumbersome of pipette liquid relief and its error brought into；(4) the bulging structure that the neck is arranged close to bottleneck portion is convenient
Different thicknesses glass bar protrudes into wherein water conservancy diversion.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of volumetric flask described in the embodiment of the present invention；
In the figure, it is marked as 1- body, 2- neck, 3- bottle plug, a plurality of graduation mark of 4-, 5- capacity number mark, 6- capacity
Bottle design volume, 7- bulging structure.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment
Referring to shown in Fig. 1, one kind described in the present embodiment can the multiple and different capacity of constant volume volumetric flask, comprising: pyriform is flat
Body 1, elongated neck 2 and bottle plug 3, the outer surface of the neck 2 set a plurality of graduation mark 4 and capacity number mark 5；
The length of the neck 2 is preferably provided with bulging structure 7 according to needing to be arranged, close to bottleneck portion, convenient for different thick
Thin glass bar protrudes into wherein water conservancy diversion and enters bottle；
The volume of 4 part of a plurality of graduation mark of the neck 2 is set as a certain numerical value between 1~20mL, such as 10mL；
The groove indicates to indicate " measuring " two word (not shown) above the solution capacity time line measured；
The groove expression measure into liquor capacity time line above indicate " measure into " two words or without mark.
Described one kind can the multiple and different capacity of constant volume volumetric flask material be transparent glass.
One kind of the present invention can the multiple and different capacity of constant volume volumetric flask, advantage is such as compared with the volumetric flask of the prior art
Lower example:
Example 1
COD is the normal survey index of water quality monitoring, in the measurement of COD, needs to configure the heavy chromium that concentration is 0.2500mol/L
Sour potassium solution, 100mL such as to be matched need to weigh the excellent pure grade potassium bichromate 1.2258g for drying 2h at 120 DEG C in advance and are dissolved on a small quantity
In distilled water, glass bar is stirred evenly, and is moved into 100mL volumetric flask, is repeatedly rinsed glass bar and burning with the distilled water in wash bottle
Cup, flushing liquor is transferred in 100mL volumetric flask, distilled water finally is added with dropper, since rate of addition is too fast, solution is more than
100mL graticule, the prior art can only pour into solution in waste liquor recycling bin in this case, to the charge of waste liquid company processing (because
It is teratogenesis, carcinogenic, mutagenic matter for potassium bichromate), it is unable to direct emission, solution can only reconfigure.If using this hair
4 partial volume of a plurality of graduation mark of bright 100mL volumetric flask, neck 2 is 10mL, is accurate to 0.1mL, then can read matched molten
Liquid product is 100.10mL, so that the concentration for calculating potassium bichromate solution is 0.2498mol/L, meter of the solution in COD value
Concentration value is brought into 0.2498 in calculation, rather than 0.2500.Since a plurality of graduation mark 4 is arranged in neck, convenient for being grasped in constant volume
Accurate liquor capacity 100.10mL is read during making, facilitates the actual concentrations for calculating solution, occurs when avoiding constant volume molten
It can only discard due to that can not determine exceeded how many when liquid measure is more than graticule and reconfigure cumbersome, also a save drug and molten
Agent improves work efficiency, it is thus also avoided that toxic waste liquid keeping, transport, processing it is cumbersome, saved processing cost；
Example 2
The 100mL volumetric flask of the prior art, can only read 100.0mL, due to a plurality of scale of capacity neck part of the invention
The volume of 4 part of line is 10mL, can be read to 100.10mL, volumetric flask of the invention improves the precision of reading.
Example 3
The prior art needs accurately to be pipetted during measuring COD value the dichromic acid of 20.00mL with clean pipette
Potassium solution is reacted in 250mL ground conical flask, using 20.00mL volumetric flask of the invention, a plurality of scale of neck 2
4 partial volume of line is 5mL, and the volume between every two adjacent graduation marks is 0.05mL, that is, 0.05mL is accurate to, when the groove table
Showing can directly pour into the 20.00mL solution that configuration shakes up in 250mL ground conical flask when the solution capacity measured, eliminate use
Pipette liquid relief cumbersome and its error brought into, simplify operating procedure, and do not reduce precision, to improve work effect
Rate.
Example 4
50mL volumetric flask of the invention, when the volume of 4 part of a plurality of graduation mark of neck 2 is 5mL, every two adjacent quarters
The volume spent between line is 0.05mL, and during configuring solution, since precision is compared with prior art height, bore is smaller, uses glass
The setting of bulging structure 7 facilitates different thicknesses glass bar to protrude into when glass stick water conservancy diversion enters bottle.
Example 5
Certain strength solution 98.5mL is needed, the prior art is that the volumetric flask of 250mL is selected to be configured, and is then pipetted
98.5mL is used, and is pipetted 98.5mL and is routinely needed pipette at least 4 times, be respectively 50.0mL, 25.0mL, 20.0mL,
3.50mL or 50.0mL, 20.0mL, 20.0mL, 8.50mL are read 4 numbers, are adopted using the pipette of at least 3 different capabilities
Formula volumetric flask " is measured " with 100mL of the invention, a plurality of 4 partial volume of graduation mark of neck 2 is 10mL, and an intermediate groove is
100.00mL graticule, can constant volume range be that 95.00~105.00 can directly configure 98.50mL, then pour out use, it is time saving,
It is laborsaving, efficient, it is thus also avoided that the error accumulation repeatedly read.
The embodiment of the present invention has been described in detail above, specific case used herein to the principle of the present invention and
Embodiment is expounded, and the above description of the embodiment is only used to help understand the method for the present invention and its core ideas；
At the same time, for those skilled in the art can in specific embodiments and applications according to the thought of the present invention
There is change place, in conclusion the contents of this specification are not to be construed as limiting the invention.
Claims (4)
1. one kind can the multiple and different capacity of constant volume volumetric flask characterized by comprising body (1), neck (2) and bottleneck
It fills in (3), the outer surface of the neck (2) sets a plurality of graduation mark (4) and corresponding capacity number mark (5)；
One among a plurality of graduation mark (4) is designed volume (6) for volumetric flask；
The close bottleneck portion of the neck (2) is equipped with bulging structure (7), convenient for glass bar in the too small situation of neck (2) internal diameter
It protrudes into wherein water conservancy diversion and enters bottle；
The volume of a plurality of graduation mark (4) part of the neck (2) is 1~20mL；
The groove indicates to indicate " measuring " above the solution capacity time line measured；
The groove expression measure into liquor capacity time line above indicate " measure into " or not marking-up.
2. according to claim 1 it is a kind of can the multiple and different capacity of constant volume volumetric flask, which is characterized in that the volumetric flask
Body (1) can be that pyriform is flat, and the neck (2) can be elongated cylinder structure.
3. according to claim 1 it is a kind of can the multiple and different capacity of constant volume volumetric flask, which is characterized in that the volumetric flask
Material is the transparent material not reacted with to constant volume solution component, can be transparent glass, transparent plastic.
4. according to claim 3 it is a kind of can the multiple and different capacity of constant volume volumetric flask, which is characterized in that select the appearance of glass
Measuring bottle bottleneck is that ground is connect with bottle plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910825955.3A CN110496656A (en) | 2019-09-03 | 2019-09-03 | It is a kind of can the multiple and different capacity of constant volume volumetric flask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910825955.3A CN110496656A (en) | 2019-09-03 | 2019-09-03 | It is a kind of can the multiple and different capacity of constant volume volumetric flask |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110496656A true CN110496656A (en) | 2019-11-26 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910825955.3A Pending CN110496656A (en) | 2019-09-03 | 2019-09-03 | It is a kind of can the multiple and different capacity of constant volume volumetric flask |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999062510A2 (en) * | 1998-06-01 | 1999-12-09 | Angiotech Pharmaceuticals, Inc. | Compositions comprising anti-microtubule agents for treating or preventing inflammatory diseases |
| CN2541034Y (en) * | 2001-12-26 | 2003-03-26 | 张泓筠 | Three-acid diluter |
| CN202129087U (en) * | 2011-06-14 | 2012-02-01 | 刘俊荣 | Graduated flask |
| CN204214826U (en) * | 2014-12-03 | 2015-03-18 | 江苏省苏微微生物研究有限公司 | A kind of aflatoxin B1 immune affinity column |
| CN104511322A (en) * | 2013-10-08 | 2015-04-15 | 大连民族学院 | Volumetric flask |
| CN210846426U (en) * | 2019-09-03 | 2020-06-26 | 北京师范大学 | Volumetric flask capable of fixing volume and having a plurality of different volumes |
-
2019
- 2019-09-03 CN CN201910825955.3A patent/CN110496656A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999062510A2 (en) * | 1998-06-01 | 1999-12-09 | Angiotech Pharmaceuticals, Inc. | Compositions comprising anti-microtubule agents for treating or preventing inflammatory diseases |
| CN2541034Y (en) * | 2001-12-26 | 2003-03-26 | 张泓筠 | Three-acid diluter |
| CN202129087U (en) * | 2011-06-14 | 2012-02-01 | 刘俊荣 | Graduated flask |
| CN104511322A (en) * | 2013-10-08 | 2015-04-15 | 大连民族学院 | Volumetric flask |
| CN204214826U (en) * | 2014-12-03 | 2015-03-18 | 江苏省苏微微生物研究有限公司 | A kind of aflatoxin B1 immune affinity column |
| CN210846426U (en) * | 2019-09-03 | 2020-06-26 | 北京师范大学 | Volumetric flask capable of fixing volume and having a plurality of different volumes |
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