CN108181429A - A kind of chemical analysis titration kit and titration method - Google Patents
A kind of chemical analysis titration kit and titration method Download PDFInfo
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- CN108181429A CN108181429A CN201810075140.3A CN201810075140A CN108181429A CN 108181429 A CN108181429 A CN 108181429A CN 201810075140 A CN201810075140 A CN 201810075140A CN 108181429 A CN108181429 A CN 108181429A
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- 238000004448 titration Methods 0.000 title claims abstract description 249
- 238000004458 analytical method Methods 0.000 title description 15
- 239000000126 substance Substances 0.000 title description 9
- 239000007788 liquid Substances 0.000 claims abstract description 61
- 239000004615 ingredient Substances 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 66
- 238000010276 construction Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 15
- 238000005303 weighing Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 8
- 239000004568 cement Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000003556 assay Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
-
- 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
- G01N31/16—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using titration
- G01N31/18—Burettes specially adapted for titration
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The present invention provides a kind of titration kit and titration methods.Wherein, titration kit includes titration cylinder and piston, and the titration cylinder includes liquid feeding end, cylinder and outlet end, and the internal diameter for defining cylinder is the first internal diameter, and the internal diameter for defining outlet end is the second internal diameter, and first internal diameter is more than second internal diameter.Titration method includes titrating solution being fitted into titration kit, and the titration kit equipped with titrating solution is weighed, obtains the first weight, piston is pressed, the titrating solution in titration kit cylinder is instilled in prepare liquid, until, titration is completed, titration kit after the completion of titration is weighed, obtains the second weight, the first weight subtracts the second weight, obtain titrating the titration dosage of titrating solution used, it according to the titration dosage, calculates, obtains the content of ingredient to be measured in prepare liquid.It is titrated using titration kit provided by the invention, improves the accuracy of titration speed and titration results.
Description
Technical field
The invention belongs to analytical chemistry field, more particularly to a kind of chemical analysis titration kit and titration method.
Background technology
The content of each component is the important indicator of cement performance in cement.At present, it is mainly detected using chemical analysis
The content of each component in cement.Existing chemical analysis is divided into liquor analysis (wet analysis) and Instrumental Analysis (utilizes X-fluorescence point
The equipment such as analyzer).But the data of Instrumental Analysis are still subject to liquor analysis data.Therefore, solution titration is in cement component point
It is play an important role during analysis, is pedestal method.
Existing titration usually pours into calibrated titer 1 in 50mL acids/base buret, reads initial
Volume number T1.Then, the valve of buret is opened, by the one after another drop of detected solution for being added drop-wise to added indicator of titer
In 2, when indicator discoloration, it is believed that reach titration end-point.Read remaining volume number T2 in buret.Scale on buret
Line may be only accurate to 0.1mL, that is to say, that T1 and T2 may be only accurate to 0.1mL.It is required during reading, eyes, the liquid of operating personnel
Graduation mark in face minimum point and buret is in one plane.(T1-T2) it is consumed liquid, calibration value is multiplied by liquid
Component content in the scale of construction, as detected solution.
In existing titration process, buret Plays liquid 1 is to enter fluid to be measured 2 by gravity, exist as
Lower deficiency：First, rate of titration is slower, and short time consumption is long；2nd, since liquid has surface tension, when liquid is from buret lower end end
When mouth oozes, 2 drop 0.1mL, the i.e. precision of 0.05mL are can only achieve；3rd, it due to being related to error in reading twice, is grasped during reading twice
The graduation mark made on eyes, liquid level minimum point and the buret of personnel all in one plane must slightly be neglected, the standard of reading
True property is difficult to ensure.
Invention content
It is a primary object of the present invention to provide a kind of titration kit and titration method, the technical problem to be solved is that carry
The speed of titration and accuracy in high chemical analysis, thus more suitable for practicality.
The object of the invention to solve the technical problems is realized using following technical scheme.
A kind of titration kit proposed according to the present invention, including titration cylinder and piston, wherein, the titration cylinder includes feed liquor
End, cylinder and outlet end, the internal diameter for defining cylinder is the first internal diameter, and the internal diameter for defining outlet end is the second internal diameter, described the
One internal diameter is more than second internal diameter.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, aforementioned a kind of titration kit, wherein the titration cylinder outer surface is provided with support construction, the branch
Support structure is used to support the titration cylinder and is stably placed on horizontal plane.
Preferably, aforementioned a kind of titration kit, wherein the barrel outer surface includes at least the first plane, the branch
Support structure is first plane；Alternatively, the liquid feeding end includes injection handle, the outer surface of the injection handle is extremely
Include the second plane less, the support construction is second plane.
Preferably, aforementioned a kind of titration kit, wherein the barrel outer surface is at least provided with third plane, it is described
Third plane forms the support construction together with second plane.
Preferably, aforementioned a kind of titration kit, wherein the titration kit further includes titration syringe needle, the titration syringe needle
Obstruct including pintle and needle, wherein, the pintle is used to connect the outlet end.
Preferably, aforementioned a kind of titration kit, wherein the needle stalk is provided with liquid outlet, the liquid outlet is angle
Or Horizontal Exit.
Preferably, aforementioned a kind of titration kit, wherein the length of the needle stalk is 5-50mm.
The object of the invention to solve the technical problems is also realized using following technical solution.
A kind of titration combination unit proposed according to the present invention, titration combination unit include titration kit and weighing
Frame, wherein, for the titration kit described in any one of for before, the weighing frame includes support end and pedestal, the support
End is used to support the titration kit, and the pedestal is used to provide horizontally-supported face.
The object of the invention to solve the technical problems is also realized using following technical solution.
A kind of titration method proposed according to the present invention, including, titrating solution is fitted into titration kit, it will be equipped with titrating solution
Titration kit is weighed, and obtains the first weight, and the titration kit is aforementioned, piston is pressed, by the titration in titration kit cylinder
Drop enters in prepare liquid, until, titration is completed, and the titration kit after the completion of titration is weighed, obtains the second weight, the first weight
The second weight is subtracted, obtains titrating the titration dosage of titrating solution used, according to the titration dosage, calculates, obtain prepare liquid
In ingredient to be measured content.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
A kind of titration method proposed according to the present invention, including pre- titration phase carries out prepare liquid using titration outfit
Titration until titration is completed, obtains the predetermined volume of titrating solution, and the predetermined volume is divided into titration starting stage volume and drop
Determine terminal stage volume, titrating solution is fitted into titration kit, the titration kit equipped with titrating solution is claimed together with titration syringe needle
Amount obtains third weight, and the volume of the titrating solution is more than the predetermined volume, presses piston, will be in titration kit cylinder
Titration starting stage volume titrating solution instill prepare liquid in, installation titration syringe needle, continue press piston titrated, until,
Titration is completed, and the titration kit after the completion of titration is weighed, and obtains the 4th weight, and the 4th weight includes titration syringe needle
Weight and titration syringe needle in remaining titrating solution weight, third weight subtracts the 4th weight, obtains titrating drop used
Determine the weight of liquid, according to the weight of the titrating solution, calculate, obtain the content of ingredient to be measured in prepare liquid.
Preferably, aforementioned a kind of titration method, wherein the titration end-point stage volume is 2-10mL.
By above-mentioned technical proposal, a kind of titration kit and titration method provided by the invention, at least with following advantages：
1st, it is titrated using titration kit provided by the invention, improves titration speed.
Titration kit provided by the invention including piston, presses piston, and the titrating solution in buret can be made quickly to drip into treating
It surveys in liquid, is especially titrating the starting stage, by pressurization, accelerate the speed that titrating solution enters prepare liquid, improve titration speed
Degree, has saved titration time.
2nd, it is titrated using titration kit provided by the invention, improves the accuracy of titration results.
In existing titration method, by reading the volume titrated initially with titrating solution in buret during titration completion
Several methods, to obtain titration volume used, the acquisition methods of this titration volumes miss by a mile, and then are obtained to subsequently calculating
The content of the component to be measured obtained brings error.
Titration kit provided by the invention, including piston, and the bore for titrating the liquid outlet of the outlet end of cylinder is smaller, titrating solution
It will not be under the effect of gravity from the outlet end outflow of titration cylinder.Therefore, the setting of piston and outlet end ensure that and be titrated under normal pressure
Liquid is enclosed in titration cylinder.It is titrated using titration kit provided by the invention, can titration be obtained by the method for weighing
Further according to the density of titrating solution, the volume of titration titrating solution used is calculated in the weight of titrating solution used.Weighing process
Assay balance progress can be used, weighing result can be accurate to one thousandth (0.001g), even a ten thousandth by assay balance
(0.0001g) improves the precision of testing result, and, the error that artificial sensing tape comes is avoided, improves titration results
Accuracy.
Meanwhile titration needle tubing can also be included in titration kit provided by the invention, the setting of needle tubing is titrated, is reduced single
The volume of drop can further control the addition of titration later stage titrating solution, further improve the accuracy of testing result.
Furthermore according to the principle of titration process, in titration process, color change occurs for prepare liquid, is last one after another drop of
Determine what is occurred after liquid adds in, the variation of this color has mutability.It is titrated using existing acid/base buret
When, since the volume of single drop is larger, when color change occurs, often there is the phenomenon that titration is excessive so that titration color
Deepen, and then affect the accuracy of result of calculation.Titration needle tubing provided by the invention, reduces the volume of single drop, has
Conducive to the variation of prepare liquid color in observation titration process, desired color is obtained, further improves the accurate of testing result
Property.
3rd, titration method provided by the invention improves the credible volume of titration kit.
In the prior art, when carrying out cubing by reading the graduation mark of acid buret or base buret, the quarter
Preceding 1/3 value and the rear 1/3 value error for spending line are larger, are often unavailable section.For example, when the volume of buret is 60mL,
Preceding 1/3 value 0-20mL and rear 1/3 value 40-60mL errors are larger, and the credibility interval of the buret is 20-40mL, the i.e. buret
Credible volume be only 20mL.
Titration method provided by the invention obtains the weight of titrating solution by the method for weight measurement, entire titration kit
Volume section is credible volume section, improves the credible volume of titration kit.And titration kit simultaneously participates in the weighing of weight,
The weight of weighing process is increased, improves the accuracy of weighing result.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after attached drawing is coordinated to be described in detail such as.
Description of the drawings
Fig. 1 is the schematic diagram of titration kit provided in an embodiment of the present invention.
Wherein, 1 piston；The liquid feeding end (or injection handle) of 2 titration cylinders；The cylinder of 3 titration cylinders；4 titration cylinders go out
Liquid end.
Fig. 2 is the schematic diagram of the titration syringe needle of titration kit provided in an embodiment of the present invention.
Wherein, 5 pintle；6 needles obstruct；Liquid outlet-angle of 71 needles stalk.
Fig. 3 is another schematic diagram of the titration syringe needle of titration kit provided in an embodiment of the present invention.
Wherein, 5 pintle；6 needles obstruct；Liquid outlet-Horizontal Exit of 72 needles stalk.
Specific embodiment
The technological means and effect taken further to illustrate the present invention to reach predetermined goal of the invention, below in conjunction with
Attached drawing and preferred embodiment, to a kind of titration kit and titration method proposed according to the present invention, specific embodiment, structure,
Feature and its effect are described in detail as after.In the following description, what different " embodiment " or " embodiment " referred to is not necessarily
The same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be combined by any suitable form.
The present invention provides a kind of titration kit, as shown in Figure 1.
Cylinder and piston 1 are titrated, wherein, the titration cylinder includes liquid feeding end 2, cylinder 3 and outlet end 4, defines cylinder
Internal diameter is the first internal diameter, and the internal diameter for defining outlet end is the second internal diameter, and first internal diameter is more than second internal diameter.
Titration kit provided by the invention is used for the titration process in chemical analysis.The measure of cement component in background technology
Only to the citing in titration kit purposes field of the present invention, and it is not construed as limiting.Titration kit provided by the invention can be used for chemical analysis
The titration process of all spectra in method is not limited to the measure of cement component in cement field.
It should be noted that " liquid feeding end " and " outlet end " defined in the present invention is the life to titrating the both ends of cylinder
Name, does not make purposes restriction.Specifically, in practical operation, titrating solution can be made to enter titration from outlet end by stretching piston
Cylinder, can also pour into titration cylinder, at this time, it is preferred that the titration kit further includes closure member, institute by titrating solution from liquid feeding end
The closure member stated is for sealing outlet end, so that titrating solution is poured into from liquid feeding end when titrating cylinder, titrating solution is not from outlet end
Outflow.Further, the closure member can be sealing plug or sealing sleeve, facilitate sealing and dismounting.
It should be noted that the present invention is not construed as limiting the outer surface of cylinder and the shape of inner surface that titrate cylinder." first
The inner surface of cylinder can not be defined to cylinder by internal diameter ".For example, when the inner surface of cylinder is cuboid, in first
Diameter can be the length of the cuboid.Preferably, the inner surface of the cylinder is cylinder.The present invention is to titrating the volume of cylinder not
It is specifically limited.Preferably, the volume of the titration cylinder can be 10-100mL, further preferably 50-60mL.It needs
Bright, the volume of titration cylinder of the present invention is to accommodate the effective volume of titrating solution.
The present invention is not limited the material for titrating cylinder, it is preferred that the material of the titration cylinder is plastics, glass, gold
Belong to etc..
Piston provided by the invention includes press-side, piston handle and propulsive liquid end, and press-side presses for hand；Preferably,
The propulsive liquid end is provided with sealing ring, for improving the leakproofness to titrating solution.
Preferably, second internal diameter should not be too large, and need to ensure under normal pressure, and titrating solution can dripped by piston seal
In safety barrel, it is unlikely to outflow under the effect of gravity.Preferably, second internal diameter is 0.5-3mm.Alternatively, described goes out liquid
Internal diameter at the liquid outlet at end is 0.5-3mm.
Graduation mark can be not provided on the cylinder of titration kit provided by the invention, alternatively, only setting the titration in liquid feeding end
The upper limit value of the open ended titrating solution of device.
Further, the titration cylinder outer surface of titration kit provided by the invention is provided with support construction, the support knot
Structure is used to support the titration cylinder and is stably placed on horizontal plane, for example, the support construction can ensure to drop
Determine during device weighed, titration kit can be stably placed on weighing tool.
It should be noted that " support construction " herein can titrate the structure of cylinder itself, it is not the additional of titration cylinder
Component.Preferably, barrel outer surface includes at least the first plane, and support construction is first plane, so that titration kit can
To be stably placed on weighing tool.For example, the outer surface of cylinder can be the triangle cylindricality for including three supporting planes,
It can be the cuboid for including four supporting planes.Preferably, liquid feeding end includes injection handle, and described injects the outer of handle
Surface includes at least the second plane, and the support construction is second plane.Support construction at this time be this second
Plane, so that titration kit can be stably placed on weighing tool.
Preferably, the barrel outer surface is at least provided with third plane, the third plane and described second
Plane forms the support construction together.Cylinder is divided into upper shell and lower shell, defining the part being connect with liquid feeding end is
Upper shell, the part being connect with outlet end are lower shell, it is preferred that the third surface is arranged on lower shell.Third surface,
Can be that the part of lower shell is arranged to planar structure, can also an external clip, the clip have groove part
And planar section, the card slot is for being stuck in cylinder, and planar section is for providing third plane, the structure together with the second plane
Into the support construction.
Preferably, the titration kit further includes titration syringe needle, and the titration syringe needle includes pintle 5 and needle stalk 6,
In, the pintle is used to connect the outlet end.As shown in Figures 2 and 3.
Titration syringe needle provided by the invention is for being connected at aforementioned outlet end, available for reducing the body of single liquid
Product, it can also be used to slow down rate of titration, to further improve the accuracy of testing result.Preferably, needle stalk includes liquid outlet, institute
The liquid outlet stated is angle 71, as shown in Fig. 2, to be further reduced the volume of single drop, alternatively, the liquid outlet is water
It clears mouth 72, as shown in figure 3, horizontal liquid outlet while single droplet size is reduced, can reduce connecing for drop and air
Contacting surface is accumulated, and drop can be further prevented to flow out (be not pressed under conditions of effect) under the effect of gravity, improve titration kit
Sealing liquid effect.The length of the needle stalk is preferably 3-50mm.The length of needle stalk is unsuitable long, reduces single drop as long as playing
The effect of volume.The length of needle stalk is more preferably 3-10mm.
Invention further provides a kind of titration methods.
Titrating solution is fitted into titration kit, the titration kit equipped with titrating solution is weighed, obtains the first weight, it is described
Titration kit is aforementioned described, presses piston, the titrating solution in titration kit cylinder is instilled in prepare liquid, until, titration is completed, and will be dripped
Titration kit after the completion of fixed is weighed, and obtains the second weight, the first weight subtracts the second weight, obtains titrating titrating solution used
Titration dosage, according to the titration dosage, calculate, obtain the content of ingredient to be measured in prepare liquid.
Assay balance can be used and obtain the first weight and the second weight, the precision of assay balance can be one thousandth
(0.001g) or a ten thousandth (0.0001g) improves the precision of testing result.The titrating solution can be calibrated
Titer.The density of titrating solution can be measured by density measurement instrument.Can also in the case where titrating solution concentration is very low,
The concentration of titrating solution is approximately considered 1g/cm3。
The present invention also provides another titration methods.
Including pre- titration phase titrates prepare liquid using titration outfit, until titration is completed, obtains titrating solution
The predetermined volume is divided into titration starting stage volume and titration end-point stage volume, titrating solution is packed by predetermined volume
In titration kit, the titration kit equipped with titrating solution is weighed, obtains third weight, the volume of the titrating solution is more than described
Predetermined volume, titration syringe needle is weighed, obtains the 4th weight, presses piston, the titration in titration kit cylinder is initial
The titrating solution of stage volume is instilled in prepare liquid, and installation titration syringe needle continues pressing piston and titrated, until, titration is completed, will
Titration kit after the completion of titration is weighed, and obtains the 5th weight, the 5th weight include titration syringe needle weight and
The weight of remaining titrating solution in syringe needle is titrated, third weight adds the 4th weight, subtracts the 5th weight, obtain titrating used
The weight of titrating solution according to the weight of the titrating solution, calculates, and obtains the content of ingredient to be measured in prepare liquid.
It should be noted that the device used in pre- titration phase can be existing acid or base buret, to obtain
Predetermined volume or titration kit provided by the invention.
Graduation mark is provided on the cylinder of the titration kit provided in the present embodiment.
The predetermined volume is divided into titration starting stage volume and titration end-point stage volume.When using titration kit into
During the titration of the titrating solution of row titration starting stage volume, titration syringe needle can not be installed, quickly press piston, improve titration speed
Degree；When carrying out subsequent titration using titration kit, installation titration syringe needle, and piston is slowly pressed, until titration is completed, improve drop
Determine the accuracy of result.
Preferably, the volume in titration end-point stage is 2-10mL.It should be noted that the limit of the titration end-point stage volume
Fixed, for determining the size of titration starting stage volume, to improve titration speed, and titration end-point stage volume herein is not
It is the volume in the terminal stage carried out using titration kit, because titration kit is the drop for further determining that used in the terminal stage
Determine the volume of liquid.
For carrying out HCl-NaOH titration, using traditional solution titration, dripped using acid/base buret
Periodically, skilled chemical analysis operating personnel need the used time 4 minutes, when being titrated using titration kit provided by the invention, it is only necessary to 2
Minute.And the standard deviation of 10 routine tests operations drops to 1.5% from 3%.As it can be seen that using titration kit provided by the invention
It is titrated, improves the accuracy of rate of titration and titration results.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
It is understood that the correlated characteristic in above device can be referred to mutually.In addition, in above-described embodiment " the
One ", " second " etc. is for distinguishing each embodiment, and does not represent the quality of each embodiment.
In the specification provided in this place, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice without these specific details.In some instances, well known structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this description.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each inventive aspect,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the device of the disclosure should be construed to reflect following intention：I.e. required guarantor
Shield the present invention claims the more features of feature than being expressly recited in each claim.More precisely, as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim is in itself
Separate embodiments all as the present invention.
Those skilled in the art, which are appreciated that, to carry out adaptively the component in the device in embodiment
Change and they are arranged in one or more devices different from the embodiment.It can be the component combination in embodiment
Into a component and it can be divided into multiple subassemblies in addition.In addition at least some of such feature is mutual
Except repulsion, any combinations may be used to the institute disclosed in this specification (including adjoint claim, abstract and attached drawing)
There are feature and all components of so disclosed any device to be combined.Unless expressly stated otherwise, this specification (including
Adjoint claim, abstract and attached drawing) disclosed in each feature can be by providing the replacement of identical, equivalent or similar purpose
Feature replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
One of meaning mode can use in any combination.The all parts embodiment of the present invention can with hardware realization or
It is realized with combination thereof.
It should be noted that the present invention will be described rather than limits the invention, and ability for above-described embodiment
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference mark between bracket should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Component or component listed in the claims.Word "a" or "an" before component or component does not exclude the presence of multiple
Such component or component.The present invention can be realized by means of including the device of several different components.It is several listing
In the claim of component, several in these components can be embodied by same component item.Word first,
Second and the use of third etc. do not indicate that any sequence.These words can be construed to title.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, according to
According to any simple modification, equivalent change and modification that the technical spirit of the present invention makees above example, this hair is still fallen within
In the range of bright technical solution.
Heretofore described numberical range includes numerical value all in the range of this, and including any two in the range of this
The value range of numerical value composition.
Technical characteristic in the claims in the present invention and/or specification can be combined, and a combination thereof mode is not limited to weigh
The combination obtained in profit requirement by adduction relationship.It is combined by the technical characteristic in claim and/or specification
The technical solution and protection scope of the present invention arrived.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, according to
According to any simple modification, equivalent change and modification that the technical spirit of the present invention makees above example, this hair is still fallen within
In the range of bright technical solution.
Claims (10)
1. a kind of titration kit, it is characterised in that：Including,
Cylinder and piston are titrated,
Wherein, the titration cylinder includes liquid feeding end, cylinder and outlet end,
The internal diameter for defining cylinder is the first internal diameter, and the internal diameter for defining outlet end is the second internal diameter, and first internal diameter is more than institute
The second internal diameter stated.
2. a kind of titration kit according to claim 1, it is characterised in that：
The titration cylinder outer surface is provided with support construction, and it is stable that the support construction is used to support the titration cylinder
It places in the horizontal plane.
3. a kind of titration kit according to claim 2, it is characterised in that：
The barrel outer surface includes at least the first plane, and the support construction is first plane；
Alternatively,
The liquid feeding end includes injection handle, and the outer surface of the injection handle includes at least the second plane, the branch
Support structure is second plane.
4. a kind of titration kit according to claim 3, it is characterised in that：
The barrel outer surface is formed at least provided with third plane, the third plane together with second plane
The support construction.
5. a kind of titration kit according to claim 1, it is characterised in that：
The titration kit further includes titration syringe needle, and the titration syringe needle includes pintle and needle obstructs,
Wherein, the pintle is used to connect the outlet end.
6. a kind of titration kit according to claim 5, it is characterised in that：
The needle stalk is provided with liquid outlet, and the liquid outlet is angle or Horizontal Exit.
7. a kind of titration kit according to claim 5, it is characterised in that：
The length of the needle stalk is 5-50mm.
8. a kind of titration method, it is characterised in that：Including,
Titrating solution is fitted into titration kit, the titration kit equipped with titrating solution is weighed, obtains the first weight, the titration
Device for described in claim 1,
Piston is pressed, the titrating solution in titration kit cylinder is instilled in prepare liquid, until, titration is completed,
Titration kit after the completion of titration is weighed, obtains the second weight,
First weight subtracts the second weight, obtains titrating the titration dosage of titrating solution used,
It according to the titration dosage, calculates, obtains the content of ingredient to be measured in prepare liquid.
9. a kind of titration method, it is characterised in that：
Using the titration kit described in claim 4, titration method includes,
Pre- titration phase titrates prepare liquid using titration outfit, until titration is completed, obtains the predetermined volume of titrating solution,
The predetermined volume is divided into titration starting stage volume and titration end-point stage volume,
Titrating solution is fitted into titration kit, the titration kit equipped with titrating solution together with titration syringe needle is weighed, obtains third
Weight, the volume of the titrating solution are more than the predetermined volume,
Piston is pressed, the titrating solution of the titration starting stage volume in titration kit cylinder is instilled in prepare liquid, installation titration needle
Head continues pressing piston and is titrated, until, titration is completed,
Titration kit after the completion of titration is weighed, obtains the 4th weight, the 4th weight includes the weight of titration syringe needle
The weight of remaining titrating solution in amount and titration syringe needle,
Third weight subtracts the 4th weight, obtains titrating the weight of titrating solution used,
It according to the weight of the titrating solution, calculates, obtains the content of ingredient to be measured in prepare liquid.
10. a kind of titration method according to claim 9, it is characterised in that：
The titration end-point stage volume is 2-10mL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810075140.3A CN108181429A (en) | 2018-01-25 | 2018-01-25 | A kind of chemical analysis titration kit and titration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810075140.3A CN108181429A (en) | 2018-01-25 | 2018-01-25 | A kind of chemical analysis titration kit and titration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108181429A true CN108181429A (en) | 2018-06-19 |
Family
ID=62551412
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810075140.3A Withdrawn CN108181429A (en) | 2018-01-25 | 2018-01-25 | A kind of chemical analysis titration kit and titration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108181429A (en) |
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| CN111007198A (en) * | 2019-12-27 | 2020-04-14 | 广州科联精密机器股份有限公司 | Syringe type titration method |
| CN111665322A (en) * | 2020-07-21 | 2020-09-15 | 韩笑 | Precision constant burette for inspection and detection center |
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Application publication date: 20180619 |