CN109916942A - The electron microscope characterizing method of collecting agent - Google Patents
The electron microscope characterizing method of collecting agent Download PDFInfo
- Publication number
- CN109916942A CN109916942A CN201910313213.2A CN201910313213A CN109916942A CN 109916942 A CN109916942 A CN 109916942A CN 201910313213 A CN201910313213 A CN 201910313213A CN 109916942 A CN109916942 A CN 109916942A
- Authority
- CN
- China
- Prior art keywords
- collecting agent
- electron microscope
- sample
- characterizing method
- acid
- 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
Abstract
The invention discloses a kind of electron microscope characterizing methods of collecting agent, belong to micro- characterization technique field, comprising the following steps: cotton paper is fixed on sample saddle surface by A, and collecting agent solution is uniformly applied on cotton paper, until cotton paper sufficiently infiltrates；After B will be loaded with the sample saddle drying of collecting agent solution, metal is uniformly sputtered at into sample surfaces；Sample is placed in imaging i.e. its microscopic appearance of observable in scanning electron microscope by C.The collecting agent fluid sample of stickiness is transformed into the semi-solid sample that can be characterized by special method for making sample by the present invention, so as to show the microscopic appearance of liquid under electron microscope visual field, opens road for the micro-space structural characterization of viscous solution.Method of the invention is able to solve the technical problem in many productions, has very strong practicability and application prospect.
Description
Technical field
The invention belongs to micro- characterization technique fields, and in particular to a kind of electron microscope characterizing method of collecting agent.
Background technique
Collecting agent is to change mineral surfaces hydrophobicity, and the ore particle to swim is made to attach to the floating agent on bubble.Collecting agent
Most of is to hydrolyze generation again by carboxylic acid or derivatives thereof and other high-molecular compound direct polycondensations, and finished product is mostly white paste
Object is configured to after solution is cooling be in colloid or floccule, the directly perceived characterization of adsorption of collector microfine ore in floatation process
Method has not been reported.
Electron microscope is a kind of microscopic sdIBM-2+2q.p.approach means of material surface pattern, being capable of clear reactive material internal junction configuration
The spatial relationship of looks feature and matter interaction, which are mainly applied to the tables of the substances micro-raman spectra such as steel, powder, material
Sign, the characterization of inner structural features and adsorption of collector point for cotton-shaped collecting agent solution are still in blank.
Summary of the invention
Present invention solves the technical problem that are as follows: the micro-space of electron microscope characterization collecting agent can not be directly utilized at present
Structure.
There is provided a kind of electron microscope characterization sides of collecting agent for the technical solution of present invention solution above-mentioned technical problem
Method, comprising the following steps:
Cotton paper is fixed on sample saddle surface by A, and collecting agent solution is uniformly applied on cotton paper, until cotton paper is abundant
Until infiltration；
After B will be loaded with the sample saddle drying of collecting agent solution, metal is uniformly sputtered at into sample surfaces；
Sample is placed in imaging i.e. its microscopic appearance of observable in scanning electron microscope by C.
Cotton paper: with the paper of the bast fiber of trees.
Wherein, the electron microscope characterizing method of above-mentioned collecting agent, the collecting agent, which refers to, changes mineral surfaces hydrophobicity,
So that the ore particle to swim is attached to the floating agent on bubble, or is used as aggregation in a liquid and sticks subparticle and be allowed to generate
The medicament of floccule.
Wherein, the electron microscope characterizing method of above-mentioned collecting agent, the collecting agent are oxide mineral collector or flocculant；
Preferably, the oxide mineral collector be fatty acid and its soaps, alkylsulfonate, alkyl sulfate, phosphate, fatty amine and
One or more of its salt, rosin amine or hydroximic acid, the flocculant are inorganic flocculating agent or organic flocculant；It is more excellent
Choosing, the oxide mineral collector is oleic acid, linoleic acid, enuatrol, tall oil, oxidized paraffin wax, aphthenic acids, monoethanolamine or two
One or more of ethanol amine, the flocculant are alum, polyacrylamide, ferric sulfate, polyacrylic acid, polyacrylic acid
Sodium, calcium polyacrylate (CPA), aluminium polychloride, bodied ferric sulfate, polymeric silicicacid, polyaluminium sulfate, poly dimethyl diallyl chlorination
Ammonium, octyl hydroximic acid, benzene hydroximic acid, to one or more of tert-butyl benzyl hydroximic acid.
Wherein, the electron microscope characterizing method of above-mentioned collecting agent, in step A, the aperture of the cotton paper is 0.07~
0.09mm。
Wherein, the electron microscope characterizing method of above-mentioned collecting agent, in step A, the mode of the smearing is to use capillary
Collecting agent solvent is drawn, is smeared in a manner of " returning " font.
Wherein, the electron microscope characterizing method of above-mentioned collecting agent, in step A, the mass concentration of the collecting agent solution
It is 20~80%.
Wherein, the electron microscope characterizing method of above-mentioned collecting agent, in step A, the sample saddle is copper post saddle.
Wherein, the electron microscope characterizing method of above-mentioned collecting agent, in step B, it is described it is dry meet it is at least one of following:
It is dry under conditions of vacuum degree is 0.2~0.6Pa；Preferably, the vacuum degree is 0.4Pa；
The dry time is 1~3min.
Wherein, the electron microscope characterizing method of above-mentioned collecting agent, in step B, the metal is gold；The sputtering
Target-substrate distance is 15 ± 3cm；The time of the sputtering is 70~80s, and the rotation speed of the sample saddle is 10 ± 2r/min.
Wherein, the electron microscope characterizing method of above-mentioned collecting agent, in step C, the imaging be in Low-vacuum mode or
It is imaged in secondary electron mode.
Compared with prior art, the beneficial effects of the present invention are:
The collecting agent fluid sample of stickiness is transformed into the semisolid sample that can be characterized by special method for making sample by the present invention
Product are the micro-space structure of viscous solution so as to show the microscopic appearance of liquid under electron microscope visual field
Characterization opens road.Method of the invention is able to solve the technical problem in many productions, has very strong practicability and answers
Use prospect.
Detailed description of the invention
Fig. 1 is the morphology figure of normal collecting agent in embodiment 1；
Fig. 2 is the morphology figure that the collecting agent of ore particle is normally stained in embodiment 1；
Fig. 3 is the morphology figure of abnormal collecting agent in embodiment 1；
Fig. 4 is the morphology figure for being stained with the collecting agent of ore particle in embodiment 1 extremely；
Fig. 5 is the morphology figure of aluminated sewage solution in embodiment 2；
Fig. 6 is the morphology figure for the fatty acid that mass concentration is 20% in embodiment 3；
Fig. 7 is the morphology figure for the fatty amine that mass concentration is 20% in embodiment 3；
Fig. 8 is morphology figure of the cotton paper as the collecting agent of carrier in embodiment 4；
Fig. 9 is morphology figure of the metal copper mesh as the collecting agent of carrier in embodiment 4；
Figure 10 is that collecting agent solution smears non-uniform morphology figure；
Figure 11 is the morphology figure of collecting agent solution under condition of high vacuum degree；
Figure 12 is that " returning " font of collecting agent solution smears mode.
Specific embodiment
Specifically, a kind of electron microscope characterizing method of collecting agent, comprising the following steps:
Cotton paper is fixed on sample saddle surface by A, and collecting agent solution is uniformly applied on cotton paper, until cotton paper is abundant
Until infiltration；
After B will be loaded with the sample saddle drying of collecting agent solution, metal is uniformly sputtered at into sample surfaces；
Sample is placed in imaging i.e. its microscopic appearance of observable in scanning electron microscope by C.
There are two types of meanings for collecting agent of the invention: one is mineral surfaces hydrophobicity is changed, attaching to the ore particle to swim
Floating agent on bubble；One is in a liquid, sticks subparticle as aggregation and be allowed to generate the medicament of floccule.
The solvent in collecting agent solution in the method for the present invention is all substances that can dissolve corresponding collecting agent, due to big
Part collecting agent can be dissolved in water, so solvent is preferably water.
Collecting agent solution of the invention can be the solution that collecting agent is dissolved in pure solvent formation, is also possible to collecting agent and is dissolved in
The solution that solvent containing solid particle is formed, the solid particle can be ore particle, be also possible to sand grain.
Oxide mineral collector is fatty acid and its soaps, alkylsulfonate, alkyl sulfate, phosphoric acid in the method for the present invention
Ester, fatty amine and its one of salt or rosin amine are a variety of；Specifically, the group of fatty acid becomes RCOOH, R is alkyl or takes
The alkyl in generation, the hydrogen in molecule is replaced by Na or K becomes soap, and the most commonly used is oleic acid, enuatrol, linoleic acid, tall oil, oxidation stones
Wax, aphthenic acids.The general formula of alkylsulfonate is RSO3M, M represent alkaline-earth metal or alkali metal, and R represents alkyl, such as dodecane
Base sodium sulfonate, neopelex.The general formula of alkyl sulfate is RSO4M, M represent alkaline-earth metal or alkali metal, and R is represented
Alkyl, such as lauryl sodium sulfate.Phosphate is divided into primary phosphate (such as methyl orthophosphoric acid), secondary phosphate (such as di(2-ethylhexyl)phosphate
Methyl esters) and tertiary phosphate (such as trimethyl phosphate).The group of fatty amine becomes RCOONH4, R be alkyl or substituted alkyl, it
As general amine, it is divided into primary amine, secondary amine and tertiary amine and four major class of polyamines, such as lauryl amine.Fatty amine salt, which refers to, uses hydrochloric acid
Or the product that other acid neutralize kiber alkyl amine, secondary amine and tertiary amine obtain is fatty amine salt, such as lauryl amine acetate.Hydroximic acid is
Refer to the derivative of fatty acid that is replaced by oximido of carboxyl divalent oxygen in fatty acid molecule, for example, octyl hydroximic acid, benzene hydroximic acid, to uncle
Butyl benzyl hydroximic acid.
Since cotton paper is dispersed with fine cotton fibre, the original form of collecting agent solution, and cotton can be preferably maintained
Matter fiber increases the specific surface area of cotton paper, so as to adsorb more collecting agent molecules on its surface, therefore, the present invention
Characterizing method select carrier of the grid aperture for the cotton paper of 0.07~0.09mm as collecting agent.
If collecting agent solution is unevenly distributed on cotton paper, the Separate Fine-grained Minerals particle under electron microscope can reunite
Phenomenon influences the effect of imaging.Therefore, in order to be evenly distributed in collecting agent solution on cotton paper, the present invention uses capillary
Collecting agent solution is drawn, it is repeated multiple times that collecting agent is applied to cotton paper surface in a manner of " returning " font, until cotton paper sufficiently soaks
Until profit.
Collecting agent solution concentration is too low, and the adsorbance of mineral grain is too low, and target minreal rate of recovery index reduces；Collecting agent
Solution concentration is excessively high, and ore particles adsorbance continues to increase, and the rate of recovery of target minreal no longer increases, or even declines instead.Cause
This, the mass concentration of collecting agent solution is controlled 20~80%.
In the present invention, vacuum degree is too high to make the reduction of collecting agent molecule moisture content, cause collecting agent to crystallize out, be made
Sample failure；Vacuum degree is too low, and the stability of collecting agent is bad.Therefore, 0.2~0.6Pa is set by vacuum degree, preferably
, the vacuum degree is 0.4Pa.
In characterizing method of the invention, the sputtering time of step B is 70~80s, and the time, too short will cause showed charge
Aggregation influences the effect of imaging, and overlong time, metallic particles can cover the real topography of collecting agent molecule, and will cause gold
The waste of category.
In characterizing method of the invention, the imaging of step C constitutes preferential selection Low-vacuum mode, this is because with secondary electricity
Subpattern is compared, and Low-vacuum mode can effectively avoid the clustering phenomena of charge.
A specific embodiment of the invention is further described below with reference to embodiment, is not therefore limited the present invention
System is among the embodiment described range.
Embodiment 1
The collecting agent aqueous solution of the normal flotation operation of Xuan Tai factory and abnormal flotation operation is had chosen by Pan Gang vanadium mining company
(mass concentration 80%) is used as test sample, is sent to Panzhihua Iron & Steel Institute of Panzhihua Iron & Steel Group and has been carried out point with the method for the present invention
Analysis identification.
The collecting agent that normal flotation operation and abnormal flotation operation use is enuatrol: monoethanolamine: diethanol amine=
1:0.8:0.2 (molar ratio), wherein normal flotation operation uses effective collecting agent, and abnormal flotation operation uses
Expired invalid collecting agent.
The characterizing method of collecting agent space structure:
(1) willCylindrical, copper column pallet upper surface alcohol washes it is clean, from two-sided carbonaceous conductive glue clip 3
The Rectangular boxes of × 5mm, and it is sticked to the upper surface of copper post on one side.Selecting grid aperture is the cotton paper conduct of 0.074mm
Adsorption of collector carrier, is cut into the rectangular blocks of 3 × 5mm, is successively sticked to the upper surface of conducting resinl, edge copper wire
It is fixed, it is fallen off with vacuumizing after preventing it from soaking.
(2) a small amount of collecting agent solution is drawn, with the glass capillary (internal diameter 0.5mm) of dried and clean with " returning " font
Collecting agent is uniformly applied to clockwise on cotton paper surface by mode (see Figure 12), it is repeated multiple times smear until cotton paper sufficiently soak for
Only.
(3) the sample saddle for being loaded with collecting agent is moved into rapidly in Q150R ES type vapor deposition instrument, is placed in below gold target
On the center rotary table of 15cm.First setting vacuum degree is 4 × 10-1Pa is dried in vacuo it, reaches predetermined vacuum degree to it
Afterwards, 1min is stood；Setting gold target sputtering time is 75s, and rotary table rotation speed is 10r/min, makes bronze uniform sputter in sample
The surface of product.
(4) sample is taken out from vapor deposition instrument, is placed in the objective table center of 650 scanning electron microscope of Quanta, select Electronic Speculum high
Vacuum mode, operating current 100mA, voltage 20kV, operating distance 10mm.Cotton paper fenestral porosity inner part is found under visual field
The uniform collecting agent molecule of cloth, carries out imaging of taking pictures to it under Low-vacuum mode.
The micro-space structure and morphology figure of two kinds of collecting agents is detailed in Fig. 1~4.
By known to the microstructure microscopic analysis to normal and abnormal collecting agent: the microstructure toughness of normal collecting agent
It is relatively strong, it is significantly that porous structure causes large specific surface area, the smooth high resilience of structure, comparison diagram 1 and the most significant area Fig. 2
It is not since the absorption of ore particles causes the uneven of hole wall, it can be seen that uniform ore particle uniform adhesion is in porous structure
Hole wall around, therefore the collecting of the collecting agent works well.The microstructure toughness of abnormal collecting agent is very poor, and hole obviously subtracts
It is few, and pore wall thickness is uneven, or even in filiform, whole microscopic appearance does not have Fig. 1 to know rich in stereovision, comparison diagram 3 and Fig. 4
The mineral grain adhered to around hole wall significantly reduces, and hole obviously collapses and the reduction of collecting agent specific surface area is caused to be degrading collecting
Effect, this is the immediate cause for causing two kinds of collecting agent collecting effect significant differences.
Embodiment 2
Using embodiment 1 characterizing method to contain alum (KAl (SO4)2·12H2O the microstructure of sewage solution)
It is characterized, aluminated sewage solution micro-space structure is detailed in Fig. 5.
It can be seen that the space microstructure of alum solution by sewage solution morphology figure aluminated in Fig. 5
The mainly Filamentous spider reticulation structure being intertwined to form, the node that solid particle primary attachment crosses in two or three silks
Place, it can be seen that the multinode reticular structure that flocculant is formed is the important indicator of its flocculating effect quality.
Embodiment 3
Use the characterizing method of embodiment 1 respectively to mass concentration for 20% the two kinds of collectings of octyl hydroximic acid and lauryl amine
The micro-space structure of agent aqueous solution is characterized, and the space structure of fatty hydroximic acid and lauryl amine is detailed in Fig. 6 and Fig. 7.
It can be seen that the hole configurations of lauryl amine collecting agent is significantly greater than by the microstructure of two kinds of collecting agents of Fig. 6 and Fig. 7
The liquid particles of a large amount of emulsion droplet shapes are commonly formed in fatty hydroximic acid collecting agent, the surface of fatty hydroximic acid, from the sky of two kinds of collecting agents
Between structure can be seen that it is significantly different to the suction type of mineral grain.
Embodiment 4
Select the identical metal copper mesh in aperture and cotton paper as collecting agent carrier respectively, using the method for making sample of embodiment 1
The polyacrylamide sewage water flocculant space structure for being 20% to mass concentration characterizes, the collecting using cotton paper as carrier
Agent space structure is shown in Fig. 8, and the flocculant space structure using metal copper mesh as carrier is shown in Fig. 9.
Found out by the comparison pattern of the flocculant space structure of two kinds of carrier mediums of Fig. 8 and Fig. 9, using the wadding of cotton paper material
Solidifying agent space structure reticular structure is uniformly and high resilience, the flocculant space structure using metal copper mesh as carrier have obviously
It collapses, reticular structure is unobvious.
Comparative example 1
The microstructure of the collecting agent solution (containing mineral grain) of normal flotation operation is characterized, characterizing method and reality
Directly collecting agent solution is dripped in cotton paper after drawing collecting agent solution using dropper when it is identical to apply example 1, but smears
Surface, until cotton paper sufficiently soaks, the micro-space structure of collecting agent solution is detailed in Figure 10.
From fig. 10 it can be seen that drawing collecting agent using dropper, then directly collecting agent solution is dripped on cotton paper surface
Although mode can also be observed that the micro-space structure of collecting agent solution, but this smearing mode be easy to cause Separate Fine-grained Minerals
The agglomeration of grain influences the effect of imaging.
Comparative example 2
The microstructure of the collecting agent solution of normal flotation operation (being free of mineral grain) is characterized, characterizing method with
Embodiment 1 is identical, but vacuum degree is 0.1Pa, and the micro-space structure of collecting agent solution is detailed in Figure 11.
It can be seen from figure 11 that vacuum degree is too high, the moisture content of collecting agent molecule will be reduced rapidly, and be easy to cause in this way
Collecting agent crystallizes out, and is unfavorable for sample preparation.
Claims (10)
1. the electron microscope characterizing method of collecting agent, which comprises the following steps:
Cotton paper is fixed on sample saddle surface by A, and collecting agent solution is uniformly applied on cotton paper, until cotton paper sufficiently infiltrates
Until；
After B will be loaded with the sample saddle drying of collecting agent solution, metal is uniformly sputtered at into sample surfaces；
Sample is placed in imaging i.e. its microscopic appearance of observable in scanning electron microscope by C.
2. the electron microscope characterizing method of collecting agent according to claim 1, it is characterised in that: the collecting agent, which refers to, to be changed
Become mineral surfaces hydrophobicity, the ore particle to swim is made to attach to the floating agent on bubble, or is used as aggregation in a liquid and sticks
Subparticle simultaneously is allowed to generate the medicament of floccule.
3. the electron microscope characterizing method of collecting agent according to claim 2, it is characterised in that: the collecting agent is oxidation
Mine collecting agent or flocculant；Preferably, the oxide mineral collector is fatty acid and its soaps, alkylsulfonate, alkylsurfuric acid
One or more of salt, phosphate, fatty amine and its salt, rosin amine or hydroximic acid, the flocculant are inorganic flocculation
Agent or organic flocculant；It is furthermore preferred that the oxide mineral collector be oleic acid, linoleic acid, enuatrol, tall oil, oxidized paraffin wax,
One or more of aphthenic acids, monoethanolamine or diethanol amine, the flocculant are alum, polyacrylamide, sulfuric acid
Iron, polyacrylic acid, Sodium Polyacrylate, calcium polyacrylate (CPA), aluminium polychloride, bodied ferric sulfate, polymeric silicicacid, polyaluminium sulfate,
Polydimethyldiallyl ammonium chloride, octyl hydroximic acid, benzene hydroximic acid, to one or both of tert-butyl benzyl hydroximic acid with
On.
4. the electron microscope characterizing method of collecting agent according to claim 1, it is characterised in that: in step A, the cotton paper
Aperture be 0.07~0.09mm.
5. the electron microscope characterizing method of collecting agent according to claim 1, it is characterised in that: in step A, the smearing
Mode be with capillary draw collecting agent solvent, smeared in a manner of " returning " font.
6. the electron microscope characterizing method of collecting agent according to claim 1, it is characterised in that: in step A, the collecting
The mass concentration of agent solution is 20~80%.
7. the electron microscope characterizing method of collecting agent according to claim 1, it is characterised in that: in step A, the sample
Saddle is copper post saddle.
8. the electron microscope characterizing method of collecting agent according to claim 1, which is characterized in that in step B, the drying
Meet at least one of following:
It is dry under conditions of vacuum degree is 0.2~0.6Pa；Preferably, the vacuum degree is 0.4Pa；
The dry time is 1~3min.
9. the electron microscope characterizing method of collecting agent according to claim 1, it is characterised in that: in step B, the metal
For gold；The target-substrate distance of the sputtering is 15 ± 3cm；The time of the sputtering is 70~80s；The rotation speed of the sample saddle
Degree is 10 ± 2r/min.
10. the electron microscope characterizing method of collecting agent according to claim 1, it is characterised in that: in step C, it is described at
It seem to be imaged in Low-vacuum mode or secondary electron mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910313213.2A CN109916942B (en) | 2019-04-18 | 2019-04-18 | Electron microscopy characterization method of collecting agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910313213.2A CN109916942B (en) | 2019-04-18 | 2019-04-18 | Electron microscopy characterization method of collecting agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109916942A true CN109916942A (en) | 2019-06-21 |
| CN109916942B CN109916942B (en) | 2021-09-21 |
Family
ID=66977781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910313213.2A Active CN109916942B (en) | 2019-04-18 | 2019-04-18 | Electron microscopy characterization method of collecting agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109916942B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116519727A (en) * | 2023-03-21 | 2023-08-01 | 浙江大学 | Scanning electron microscope and observation method for microstructure evolution of sample thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066923A (en) * | 1991-08-07 | 1992-12-09 | 中国科学院新疆生物土壤沙漠研究所 | The freezing and dissolving corrosion method for making sample that is used for the electronic microscope observation of liquid state sample |
| CN1641067A (en) * | 2004-01-09 | 2005-07-20 | 中国科学院金属研究所 | Method for preparing film sample for transmission electron microscope |
| JP2012083146A (en) * | 2010-10-08 | 2012-04-26 | Hitachi High-Technologies Corp | Method of observation of sample floating on liquid surface under scanning electron microscope |
| CN103512785A (en) * | 2013-10-15 | 2014-01-15 | 深圳市星源材质科技有限公司 | Method for preparing section SEM sample by micropore thin film material |
| KR20140074287A (en) * | 2011-09-09 | 2014-06-17 | 도꾸리쯔교세이호징 가가꾸 기쥬쯔 신꼬 기꼬 | Electron-microscopic examination method for examining biosample while keeping said biosample unchanged, and composition for evaporation inhibition under vacuum, scanning electron microscope, and transmission electron microscope for use in said method |
| CN104020030A (en) * | 2014-06-09 | 2014-09-03 | 北京农学院 | Preparation method of insect sample for scanning electron microscope |
| CN106093091A (en) * | 2016-05-25 | 2016-11-09 | 哈尔滨师范大学 | A kind of rupture of membranes prepares the method for the unicellular scanning electron microscope example of protozoacide |
| JP2018146519A (en) * | 2017-03-08 | 2018-09-20 | 住友金属鉱山株式会社 | Sample preparation method |
| CN108760785A (en) * | 2018-06-05 | 2018-11-06 | 安徽中创电子信息材料有限公司 | A kind of method of scanning electron microscope observation barium titanate superfine powder |
-
2019
- 2019-04-18 CN CN201910313213.2A patent/CN109916942B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066923A (en) * | 1991-08-07 | 1992-12-09 | 中国科学院新疆生物土壤沙漠研究所 | The freezing and dissolving corrosion method for making sample that is used for the electronic microscope observation of liquid state sample |
| CN1641067A (en) * | 2004-01-09 | 2005-07-20 | 中国科学院金属研究所 | Method for preparing film sample for transmission electron microscope |
| JP2012083146A (en) * | 2010-10-08 | 2012-04-26 | Hitachi High-Technologies Corp | Method of observation of sample floating on liquid surface under scanning electron microscope |
| KR20140074287A (en) * | 2011-09-09 | 2014-06-17 | 도꾸리쯔교세이호징 가가꾸 기쥬쯔 신꼬 기꼬 | Electron-microscopic examination method for examining biosample while keeping said biosample unchanged, and composition for evaporation inhibition under vacuum, scanning electron microscope, and transmission electron microscope for use in said method |
| CN103512785A (en) * | 2013-10-15 | 2014-01-15 | 深圳市星源材质科技有限公司 | Method for preparing section SEM sample by micropore thin film material |
| CN104020030A (en) * | 2014-06-09 | 2014-09-03 | 北京农学院 | Preparation method of insect sample for scanning electron microscope |
| CN106093091A (en) * | 2016-05-25 | 2016-11-09 | 哈尔滨师范大学 | A kind of rupture of membranes prepares the method for the unicellular scanning electron microscope example of protozoacide |
| JP2018146519A (en) * | 2017-03-08 | 2018-09-20 | 住友金属鉱山株式会社 | Sample preparation method |
| CN108760785A (en) * | 2018-06-05 | 2018-11-06 | 安徽中创电子信息材料有限公司 | A kind of method of scanning electron microscope observation barium titanate superfine powder |
Non-Patent Citations (4)
| Title |
|---|
| 中国材料研究学会等: "《中国战略性新兴产业 新材料 环境工程材料》", 30 November 2018, 北京：中国铁道出版社 * |
| 曲彩霞: "原子力显微镜与动态光散射研究疏水缔合聚丙烯酰胺微观结构", 《高分子通报》 * |
| 王兴军: "气流床煤气化水系统中絮凝物的絮凝及分形特性", 《煤炭学报》 * |
| 黄礼煌等: "《浮选》", 31 March 2018, 北京：冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116519727A (en) * | 2023-03-21 | 2023-08-01 | 浙江大学 | Scanning electron microscope and observation method for microstructure evolution of sample thereof |
| CN116519727B (en) * | 2023-03-21 | 2024-03-26 | 浙江大学 | Scanning electron microscope and observation method for microstructure evolution of sample thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109916942B (en) | 2021-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108159889A (en) | A kind of super hydrophilic-superoleophobic redox graphene filter membrane and purposes | |
| Chen et al. | Graphene oxide coated meshes with stable underwater superoleophobicity and anti-oil-fouling property for highly efficient oil/water separation | |
| TW201704147A (en) | Process for the purification of water | |
| Jassby et al. | Membrane filtration of fullerene nanoparticle suspensions: Effects of derivatization, pressure, electrolyte species and concentration | |
| CN109916942A (en) | The electron microscope characterizing method of collecting agent | |
| Cohen et al. | Natural and synthetic polyelectrolytes as coagulant aids | |
| CN110227356A (en) | A kind of calcium alginate compounded filter membrane, and its preparation method and application | |
| CN107858527B (en) | A method of absorption prepares high purity copper and copper sulphate from copper facing sludge | |
| Shen et al. | Recovery of cutting fluids and silicon carbide from slurry waste | |
| CN1084874A (en) | The purifying method of oil-based composition and the application of combination | |
| CN108187917A (en) | A kind of aromatic radical phosphonic acids and its esters collecting agent and its application | |
| CN102001690B (en) | Method for preparing industrial anhydrous sodium sulfate | |
| JP7374580B2 (en) | Organic material purification composition and organic material purification method using the same | |
| JP2007291513A (en) | Silver particle | |
| Schott | Electrokinetic studies of magnesium hydroxide | |
| Li et al. | Removal of organic matter and heavy metals of low concentration from wastewater via micellar-enhanced ultrafiltration: an overview | |
| CN106147473A (en) | A kind of production method of polyaniline/attapulgite nano-electric conducting coating | |
| JPS6158205B2 (en) | ||
| Liu et al. | Use of cloud point extraction for removal of nanosized copper oxide from wastewater | |
| Lee et al. | Dispersion stabilities of multi-layer graphene-coated copper prepared by electrical wire-explosion method | |
| Bian et al. | Treatment of phosphorus waste water using crystallization method | |
| US2729334A (en) | Purification of paper mill white water by froth flotation | |
| CN103666000B (en) | A kind of water based conductive coating and preparation method thereof | |
| Viswanathan et al. | Laboratory experiments on river-estuary geonanomaterials | |
| CN102167928A (en) | Ink-jet composition with nickel particles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220727 Address after: 610306 Chengdu City, Chengdu, Sichuan, China (Sichuan) free trade test zone, Chengdu City, Qingbaijiang District, xiangdao Boulevard, Chengxiang Town, No. 1509 (room 13, A District, railway port mansion), room 1319 Patentee after: Chengdu advanced metal material industry technology Research Institute Co.,Ltd. Patentee after: PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE Co.,Ltd. Address before: 617000 Taoyuan street, East District, Panzhihua, Sichuan Province, No. 90 Patentee before: PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right |