CN106872257A - A kind of microwave digestion system and method - Google Patents
A kind of microwave digestion system and method Download PDFInfo
- Publication number
- CN106872257A CN106872257A CN201710159126.7A CN201710159126A CN106872257A CN 106872257 A CN106872257 A CN 106872257A CN 201710159126 A CN201710159126 A CN 201710159126A CN 106872257 A CN106872257 A CN 106872257A
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- Prior art keywords
- closed container
- microwave
- cavity
- counteracting tank
- tank
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- 238000000120 microwave digestion Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims 4
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000009835 boiling Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 238000009833 condensation Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Cookers (AREA)
Abstract
The invention discloses a kind of microwave digestion system and method, belong to micro-wave digestion equipment technical field, wherein microwave digestion system includes closed container, the reaction environment of high temperature and high pressure is included for having in the cavity of closed container in micro-wave digestion；Counteracting tank, connection is placed in the cavity of closed container, and counteracting tank is non-tight structure, and counteracting tank is connected with the cavity of closed container.The reaction conditions such as the temperature and pressure between each counteracting tank of the invention can keep highly consistent, and disclosure satisfy that the demand that super-pressure is cleared up.
Description
Technical field
The present invention relates to micro-wave digestion equipment technical field, and in particular to a kind of microwave digestion system and method.
Background technology
Micro-wave digestion is typically referred to using the digestion solution in heating using microwave closed vessel（Various acid, part alkali lye and salt
Class）And sample, so as to make various samples rapidly-soluble wet digesting under the conditions of high temperature pressurised.
A kind of microwave dissolver, including casing, rotating disk, driving machine are for example disclosed in Chinese patent CN204988855U
Structure, multiple counteracting tanks and rupture disk, multiple counteracting tanks are placed in casing, and being folded with pressure between the upper lid and tank body of counteracting tank sets
Part, sealing effectiveness preferably, has HTHP in counteracting tank when clearing up.
A kind of sealed microwave digestion system of multichannel, including group are for example disclosed in Chinese patent CN204666432U again
Tank frame is closed, at least two counteracting tanks are placed on composite can frame, and when clearing up, sample carries out clearing up reaction, counteracting tank in counteracting tank
It is interior with HTHP.
It can be seen that, microwave dissolver in the market be substantially all using multiple counteracting tanks it is independent sealed after be placed on it is same
Carry out heating the purpose for realizing high temperature and high pressure and being cleared up so as to reach sample, when clearing up, multiple counteracting tanks difference in microwave cavity
With HTHP, cause the reaction conditions such as temperature and pressure in multiple counteracting tanks not consistent, have differences, reaction condition
Uniformity is poor.And, the volume in counteracting tank is relatively small, to the more difficult control of the reaction conditions such as the pressure in it, and to be reached
The limited pressure for arriving, if pressure is excessive to have the danger such as blast, thus it is anti-to carry out micro-wave digestion using multiple sealed digestion tanks
At once have the shortcomings that safety coefficient is low.
The content of the invention
Therefore, the embodiment of the present invention technical problem to be solved is reaction condition in multiple counteracting tanks of the prior art
Uniformity is poor, security is low.
Therefore, a kind of microwave digestion system of the embodiment of the present invention, including：
Closed container, the reaction environment of high temperature and high pressure is included for having in the cavity of closed container in micro-wave digestion；
Counteracting tank, connection is placed in the cavity of closed container, and counteracting tank is the cavity of non-tight structure, counteracting tank and closed container
Connection.
Preferably,
Counteracting tank includes tank body and cover, and cover is placed on tank body；
Cover includes passage, and passage is used to connect the cavity of counteracting tank and closed container.
Preferably,
The material of closed container is the transparent nonmetallic materials of microwave.
Preferably, also including microwave cavity, closed container connection is placed in microwave cavity.
Preferably,
The material of closed container is metal material, and closed container is directly used as microwave cavity.
Preferably,
The inwall of closed container is coated with tetrafluoro liner.
A kind of microwave digestion method of the embodiment of the present invention, comprises the following steps：
Sample reagent will be loaded in the tank body of counteracting tank, cover is covered non-tight；
Counteracting tank is placed in closed container；
Quantitative solution, the cover of the liquid level less than counteracting tank of solution are added in closed container；
Closed container is heated.
Preferably, the solution is water.
Preferably, it is described quantitative solution step is added in closed container after, it is described that closed container is added
It is further comprising the steps of before hot step：
The inert gas of certain pressure is injected in closed container.
Preferably, it is described heating stepses are carried out to closed container to include：
Closed container is placed in microwave cavity, closed container is heated by microwave cavity.
The technical scheme of the embodiment of the present invention, has the following advantages that：
1. microwave digestion system provided in an embodiment of the present invention, by setting counteracting tank for non-tight structure, counteracting tank with it is closed
The cavity connection of container so that the reaction condition such as temperature and pressure being positioned in the multiple counteracting tanks in closed container is maintained
Height is definitely consistent, improves the uniformity of reaction condition, eliminates the difference of the reaction condition between each counteracting tank.Pass through
Using closed container, compared to the counteracting tank of small volume, closed container has bulky advantage, the pressure in closed container
Relatively well controlled, improve the security of microwave digestion system.
2. microwave digestion method provided in an embodiment of the present invention, by the indifferent gas that certain pressure is injected in closed container
Body, improves the boiling point of solution, liquid boiling when preventing heating, the possibility of cross pollution is eliminated, while can obtain higher anti-
Answer pressure.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the specific embodiment of the invention, specific embodiment will be retouched below
The accompanying drawing to be used needed for stating is briefly described, it should be apparent that, drawings in the following description are some realities of the invention
Mode is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be attached according to these
Figure obtains other accompanying drawings.
Fig. 1 is a structural representation for specific example of microwave digestion system in the embodiment of the present invention 1；
Fig. 2 is a sectional view for specific example of counteracting tank in the embodiment of the present invention 1；
Fig. 3 is the structural representation of another specific example of microwave digestion system in the embodiment of the present invention 1.
Reference：1- closed containers, 2- counteracting tanks, 21- tank bodies, 22- covers, 221- passages, 3- microwave cavities, 4-
Water, 5- tetrafluoro liners, 6- tank framves.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " on ", D score, " interior ", the orientation or position of the instruction such as " outward "
The relation of putting is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description, rather than
Indicate or imply signified device or element and must have specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as limitation of the present invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " company
Connect " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or it is integrally connected；Can be straight
Connect connected, it is also possible to be indirectly connected to by intermediary, can also be two connections of element internal.It is common for this area
For technical staff, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
As long as additionally, technical characteristic involved in invention described below different embodiments non-structure each other
Can just be combined with each other into conflict.
Embodiment 1
The present embodiment provides a kind of microwave digestion system, as shown in figure 1, including：Closed container 1 and counteracting tank 2.Closed container 1
Include the reaction environment of high temperature and high pressure, temperature in closed container 1 for having in the cavity of closed container 1 in micro-wave digestion
It is consistent with the reaction condition such as pressure.The connection of counteracting tank 2 is placed in the cavity of closed container 1, and counteracting tank 2 is non-tight structure, is disappeared
Solution tank 2 is connected with the cavity of closed container 1, and in the reaction condition such as temperature and pressure in counteracting tank 2 and closed container 1 one
Cause.
Closed container 1 can use nonmetallic materials, can penetrate microwave, can be positioned in microwave cavity 3.Closed container 1
Can also be made using metal material, be used directly as microwave cavity, microwave is directly entered closed container and sample reagent is entered
Row heating.
During micro-wave digestion, covered by by the cover of counteracting tank（It is non-closed, after preventing the water vapor condensation in closed container
Polluted in instillation counteracting tank）It is placed on closed container（Chamber wall can penetrate microwave）Water in, be previously implanted certain pressure
Inert gas, improve solution boiling point, prevent heating when liquid boiling, eliminate cross pollution possibility.By closed container
It is placed in microwave cavity and is heated, after clearing up completion and cooling, laying down by pressure takes out counteracting tank carries out next step point
Analysis is processed.
Above-mentioned microwave digestion system, by setting counteracting tank for non-tight structure, counteracting tank connects with the cavity of closed container
It is logical so that the reaction condition such as temperature and pressure being positioned in the multiple counteracting tanks in closed container maintains highly absolute one
Cause, improve the uniformity of reaction condition, eliminate the difference of the reaction condition between each counteracting tank.By using closed appearance
Device, compared to the counteracting tank of small volume, closed container has bulky advantage, and the pressure in closed container is relatively well
Controlled, improve the security of microwave digestion system.
Preferably, as shown in Fig. 2 counteracting tank 2 includes tank body 21 and cover 22, it is placed on tank body 21 non-tight of cover 22
On；Cover 22 includes passage 221, and passage 221 is used to connect the cavity of counteracting tank 2 and closed container 1, so as to ensure to clear up
The reaction conditions such as the temperature and pressure in tank 2 with it is consistent in the cavity of closed container 1.As shown in Fig. 2 passage 221 includes
Upright opening and transverse holes, transverse holes are evenly distributed in cover 22 in divergent shape, and one end of transverse holes is connected with upright opening, laterally
The other end in hole is located on the side wall of cover 22, by setting transverse holes, condensed steam can be avoided to instill and made in counteracting tank
Into pollution, good reaction environment is provided to clear up reaction, improve the accuracy of reaction.The quantity of transverse holes is set can be according to
Selected according to being actually needed, preferably may be configured as equally distributed four.Cleared up to further prevent vapor from entering
In tank, aqueous vapor filter paper is additionally provided with the aperture of upright opening, aqueous vapor filter paper is fixed on the threaded clamping ring of tool, upright opening
There is screw thread at aperture, can match with the screw thread of clamping ring, being flexibly connected for clamping ring and upright opening is realized, so as to work as aqueous vapor
When filter paper needs to change, can implement to change very conveniently.
Preferably, as shown in figure 3, the inwall of closed container 1 is coated with tetrafluoro liner 5 such that it is able to improve high temperature high
The tolerance of pressure.Microwave digestion system also includes tank frame 6, and tank frame 6 is placed in closed container 1, the bottom phase with closed container 1
Even, multiple counteracting tanks 2 are positioned on tank frame 6, can place firm, overturning-preventing.
The inner lid of closed container 1 is the inclination dome structure that middle part is high, surrounding is low, from inclination dome in inner lid
Center is divergently provided with condensation vapor groove to surrounding, after the cooling of closed container 1 when there is Water vapor condensation in inner lid, steam
Coagulating bath plays a part of drainage and condenses vapor, and condensation vapor is drained to four the week side of boss walls of closed container 1 from high to low,
Flowed back along side wall, prevent condensation vapor from directly being dropped on counteracting tank from cap top, the reaction environment of reaction is cleared up in influence,
Pollute.
Embodiment 2
Originally apply example and a kind of microwave digestion method is provided, can be applied to the microwave digestion system of above-described embodiment 1, the micro-wave digestion side
Method is comprised the following steps：
The first step will load sample reagent in the tank body of counteracting tank, cover cover non-tight；Covering cover can prevent closed
Polluted in instillation counteracting tank after water vapor condensation in container；
Second step counteracting tank is placed in closed container；
3rd step adds quantitative solution, such as water, the cover of the liquid level less than counteracting tank of solution in closed container；
4th step is heated to closed container.
Above-mentioned microwave digestion method, is positioned in closed container so that be positioned over closed by by the counteracting tank of non-tight
The reaction conditions such as the temperature and pressure in multiple counteracting tanks in container maintain height definitely unanimously, improve reaction condition
Uniformity, eliminates the difference of the reaction condition between each counteracting tank.Other closed container clearing up compared to small volume
Tank, with bulky advantage, the pressure in closed container is relatively well controlled, and super-pressure disappears in solving micro-wave digestion
The problem of solution, and improve the security of microwave digestion system.
Preferably, after the 3rd step, before the 4th step, microwave digestion method is further comprising the steps of：
The inert gas of certain pressure is injected in closed container, the boiling point of solution is improved, liquid boiling when preventing from heating is eliminated
The possibility of cross pollution, while reaction pressure higher can be obtained.
Preferably, the 4th step carries out heating stepses and includes to closed container：
If closed container is made using metal material, directly closed container can be heated.
If the nonmetallic materials that closed container use can penetrate microwave make, closed container is placed in microwave cavity,
Closed container is heated by microwave cavity.
Obviously, above-described embodiment is only intended to clearly illustrate example, and not to the restriction of implementation method.It is right
For those of ordinary skill in the art, can also make on the basis of the above description other multi-forms change or
Change.There is no need and unable to be exhaustive to all of implementation method.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
Claims (10)
1. a kind of microwave digestion system, it is characterised in that including：
Closed container（1）, for the closed container in micro-wave digestion（1）Cavity in have include the reaction ring of high temperature and high pressure
Border；
Counteracting tank（2）, connect and be placed in closed container（1）Cavity in, counteracting tank（2）It is non-tight structure, counteracting tank（2）With it is close
Close container（1）Cavity connection.
2. microwave digestion system according to claim 1, it is characterised in that
Counteracting tank（2）Including tank body（21）And cover（22）, cover（22）It is placed on tank body（21）On；
Cover（22）Including passage（221）, passage（221）For connecting counteracting tank（2）With closed container（1）Cavity.
3. microwave digestion system according to claim 1 and 2, it is characterised in that
Closed container（1）Material be the transparent nonmetallic materials of microwave.
4. microwave digestion system according to claim 3, it is characterised in that also including microwave cavity（3）, closed container
（1）Connection is placed in microwave cavity（3）It is interior.
5. microwave digestion system according to claim 1 and 2, it is characterised in that
Closed container（1）Material be metal material, closed container（1）It is directly used as microwave cavity.
6. the microwave digestion system according to claim any one of 1-5, it is characterised in that
Closed container（1）Inwall be coated with tetrafluoro liner.
7. a kind of microwave digestion method, it is characterised in that comprise the following steps：
By counteracting tank（2）Tank body（21）Middle loading sample reagent, covers cover non-tight（22）；
Counteracting tank（2）It is placed in closed container（1）It is interior；
In closed container（1）The interior liquid level for adding quantitative solution, solution is less than counteracting tank（2）Cover（22）；
To closed container（1）Heated.
8. microwave digestion method according to claim 7, it is characterised in that the solution is water.
9. the microwave digestion method according to claim 7 or 8, it is characterised in that described in closed container（1）Interior addition
It is described to closed container after quantitative solution step（1）It is further comprising the steps of before carrying out heating stepses：
In closed container（1）The inert gas of interior injection certain pressure.
10. the microwave digestion method according to claim any one of 7-9, it is characterised in that described to closed container（1）Enter
Row heating stepses include：
By closed container（1）It is placed in microwave cavity（3）It is interior, by microwave cavity（3）To closed container（1）Heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710159126.7A CN106872257A (en) | 2017-03-17 | 2017-03-17 | A kind of microwave digestion system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710159126.7A CN106872257A (en) | 2017-03-17 | 2017-03-17 | A kind of microwave digestion system and method |
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| Publication Number | Publication Date |
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| CN106872257A true CN106872257A (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710159126.7A Pending CN106872257A (en) | 2017-03-17 | 2017-03-17 | A kind of microwave digestion system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108226275A (en) * | 2018-01-31 | 2018-06-29 | 鹤壁市疾病预防控制中心 | A kind of method of 33 kinds of elements while Accurate Determining in soil |
| CN108645691A (en) * | 2018-05-11 | 2018-10-12 | 上海新拓分析仪器科技有限公司 | wet digestion device |
| CN113252434A (en) * | 2021-05-14 | 2021-08-13 | 杭州谱育科技发展有限公司 | Microwave digestion device and working method thereof |
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| CN204556367U (en) * | 2015-05-07 | 2015-08-12 | 北京农学院 | A kind of novel micro-wave diminishing pot |
| CN204594784U (en) * | 2015-03-26 | 2015-08-26 | 广州市贝源检测技术有限公司 | A kind of electric heating counteract appearance |
| CN204944927U (en) * | 2015-09-14 | 2016-01-06 | 海南鼎人科技有限公司 | A kind of side dystopy porous Specimen eliminating pipe and special plug, lid |
| CN206638502U (en) * | 2017-03-17 | 2017-11-14 | 上海新仪微波化学科技有限公司 | A kind of microwave digestion system |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1566922A (en) * | 2003-07-08 | 2005-01-19 | 文运民 | Microwave extinguishing instrument |
| CN204594784U (en) * | 2015-03-26 | 2015-08-26 | 广州市贝源检测技术有限公司 | A kind of electric heating counteract appearance |
| CN204556367U (en) * | 2015-05-07 | 2015-08-12 | 北京农学院 | A kind of novel micro-wave diminishing pot |
| CN204944927U (en) * | 2015-09-14 | 2016-01-06 | 海南鼎人科技有限公司 | A kind of side dystopy porous Specimen eliminating pipe and special plug, lid |
| CN206638502U (en) * | 2017-03-17 | 2017-11-14 | 上海新仪微波化学科技有限公司 | A kind of microwave digestion system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108226275A (en) * | 2018-01-31 | 2018-06-29 | 鹤壁市疾病预防控制中心 | A kind of method of 33 kinds of elements while Accurate Determining in soil |
| CN108645691A (en) * | 2018-05-11 | 2018-10-12 | 上海新拓分析仪器科技有限公司 | wet digestion device |
| CN113252434A (en) * | 2021-05-14 | 2021-08-13 | 杭州谱育科技发展有限公司 | Microwave digestion device and working method thereof |
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