CN108593822A - Solid phase microextraction sampling device and its system - Google Patents
Solid phase microextraction sampling device and its system Download PDFInfo
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- CN108593822A CN108593822A CN201810762039.5A CN201810762039A CN108593822A CN 108593822 A CN108593822 A CN 108593822A CN 201810762039 A CN201810762039 A CN 201810762039A CN 108593822 A CN108593822 A CN 108593822A
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- solid phase
- phase microextraction
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- 238000002470 solid-phase micro-extraction Methods 0.000 title claims abstract description 54
- 238000005070 sampling Methods 0.000 title claims abstract description 35
- 238000003760 magnetic stirring Methods 0.000 claims abstract description 15
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 14
- 239000000523 sample Substances 0.000 claims description 30
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 4
- 239000007790 solid phase Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000011148 porous material Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000002203 pretreatment Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002414 normal-phase solid-phase extraction Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/06—Preparation
- G01N2030/062—Preparation extracting sample from raw material
Landscapes
- 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)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of solid phase microextraction sampling device and its systems, are related to solid phase microextraction instrument technical field.A kind of solid phase microextraction sampling device, including holder and magnetic stirring apparatus.Holder includes fixing piece and fixing pipe, and fixing pipe is equipped with several through-holes, and the aperture of through-hole gradually increases or reduces, and solid phase microextraction instrument handle is fixed on fixing pipe across through-hole.The structure makes fixing pipe only and need to be arranged the through-hole of different pore size size can fix solid phase microextraction instrument handle, using quick, simple, effectively reduces production cost.Multi-example can be extracted simultaneously, it is efficiently convenient, reduce the influence of environment, time to sample.Magnetic stirring apparatus includes water-bath, and water-bath is equipped with fixed net.Fixed net is made of multiple spring steel wires.By adjusting the spacing between two adjacent spring steel wires, make that it is suitable for different size sample bottles.Realize the extraction to different size sample.
Description
Technical field
The present invention relates to solid phase microextraction instrument technical field, in particular to a kind of solid phase microextraction sampling device and
Its system.
Background technology
Sample pre-treatments are a vital ring during analytical chemistry, occupy the 60% of entire analytic process with
On time, main analytical error be also come from sample pre-treatments link.Sample pretreatment process it is advanced whether, directly close
It is the quality to analysis method.Its progress has a significant impact to the development of analytical chemistry, various sample pre-treatments new technologies,
The exploration and research of new method have become one of the main direction of development of contemporary analytical chemistry.Quickly, easy, automation preceding place
Reason technology is not only time saving, laborsaving, but also can reduce due to the error that different personnel operate and the multiple transition zone of sample comes, and may be used also
To avoid using a large amount of organic solvent and reduce pollution to environment.The further investigation of Sample Pretreatment Technique will be to analysis
Positive impetus is played in the development of chemistry.
Solid phase microextraction (Solid phase microextraction, SPME) is developed in solid phase extraction techniques
Come it is a kind of integrate sampling, extraction, concentration, sample introduction sample pre-treatments new technology, can be with gas-chromatography or gas chromatography mass spectrometry
The Instrument crosslinkings such as instrument, have it is easy quickly, high sensitivity, the series of advantages such as at low cost, required sample size is few, therefore, always
The highest attention for receiving analytical chemistry worker uses extensive in technical field of chromatography.Currently, use both at home and abroad is more extensive
SPME devices are mainly produced by Supelco companies of the U.S., although the mating various extracting heads of the said firm, automatic, manual handle, and sampling
Platform etc., but its operating platform still cannot be satisfied the requirement of multiple samples pre-treatment simultaneously, while the volume of sample is also limited,
This directly affect SPME pretreatment technologies accuracy and application range.In this context, it develops a set of suitable for different rule
The SPME sampling table apparatus that lattice sample, Multi-example can be handled simultaneously has to improving analysis working efficiency and precision of analysis
There is particularly important meaning.
Invention content
It is simple in structure the purpose of the present invention is to provide a kind of solid phase microextraction sampling device, it is big to be suitable for different volumes
Small sample may be implemented Multi-example while handle, efficiently convenient.
Another object of the present invention is to provide a kind of solid phase microextraction sampling systems, are suitable for the sample of different volumes size
Product may be implemented Multi-example while handle, efficiently convenient, reduce the influence of environment, time to sample.
What the embodiment of the present invention was realized in:
A kind of solid phase microextraction sampling device, including holder and magnetic stirring apparatus, holder are fixed with magnetic stirring apparatus
Connection,
Holder includes fixing piece and fixing pipe, and fixing piece is selectively fixedly connected along the length direction of holder with holder, Gu
Fixed tube is detachably connected with fixing piece.
Fixing pipe is equipped with several through-holes, and the aperture of through-hole gradually increases or reduces, for fixing solid-phase extracting instrument handle.
Further, in preferred embodiments of the present invention, fixing pipe is L-shaped structure, the bending part of fixing pipe with it is solid
Determine part connection.
Further, in preferred embodiments of the present invention, holder is provided along its length graduated scale.
Further, in preferred embodiments of the present invention, the central axis of through-hole is in horizontal plane.
Further, in preferred embodiments of the present invention, the aperture of through-hole is gradually reduced from top to the direction of bottom end.
Further, in preferred embodiments of the present invention, magnetic stirring apparatus includes water-bath and control system, control
System is electrically connected with water-bath, for controlling water-bath.
Further, in preferred embodiments of the present invention, water-bath is equipped with fixed net, and fixed net is set to water-bath
Top.
Fixed net is made of multiple spring steel wires, and both ends and the water-bath of every spring steel wire are detachably connected.
Further, in preferred embodiments of the present invention, control system includes that rotational speed regulation button, timed reminding are pressed
Button, ultrasonic switch button, timing controlled button and computer heating control button, rotational speed regulation button, timed reminding button, ultrasonic switch
Button, timing controlled button and computer heating control button may be contained within water-bath.
Further, in preferred embodiments of the present invention, water-bath is internally provided with thermocouple, ultrasonic probe and horse
Reach, thermocouple and computer heating control button connects, ultrasonic probe respectively with timed reminding button, ultrasonic switch button and timing control
Button connects processed, motor respectively with rotational speed regulation button, timed reminding button timing controlled button connects.
A kind of solid phase microextraction sampling system, including for electric installation and above-mentioned solid phase micro-extraction sampling apparatus, for electric installation
It is electrically connected with solid phase microextraction sampling device.
The advantageous effect of the embodiment of the present invention:
The present invention provides a kind of solid phase microextraction sampling device, including holder and magnetic stirring apparatus.Holder is stirred with magnetic force
Device is mixed to be fixedly connected.Holder includes fixing piece and fixing pipe, and fixing piece is selectively fixed along the length direction and holder of holder
Connection, fixing pipe are detachably connected with fixing piece.Fixing pipe is equipped with several through-holes, and the aperture of through-hole gradually increases or reduces, and uses
In fixed solid phase microextraction instrument handle.The structure makes fixing pipe only and need to be arranged the through-hole of different pore size size can fix solid phase
Micro-extraction instrument handle effectively reduces production cost using quick, simple.
Further, magnetic stirring apparatus includes water-bath, and water-bath is equipped with fixed net.Fixed net is by multiple spring steel wires
Composition, both ends and the water-bath of every spring steel wire are detachably connected.Fixed net fixes sample bottle by the way of button connection.
The structure and connection type the assembly and disassembly of spring steel wire and replace extremely to facilitate, and can arbitrarily adjust two adjacent spring steel wires
Between spacing, make that it is suitable for different size sample bottles.The solid phase microextraction sampling device may be implemented different size sample,
Multi-example extracts simultaneously, efficiently convenient, reduces the influence of environment, time to sample.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of solid phase microextraction sampling device provided in an embodiment of the present invention;
Fig. 2 is the structural schematic diagram of holder provided in an embodiment of the present invention and solid phase microextraction instrument handle;
Fig. 3 is the structural schematic diagram of magnetic stirring apparatus provided in an embodiment of the present invention;
Fig. 4 is the structural schematic diagram of spring steel wire provided in an embodiment of the present invention.
Icon:100- solid phase microextraction sampling devices;110- holders;111- fixing pieces;112- clamping plates;113- fixing pipes;
120- solid phase microextraction instrument handles;121- through-holes;130- magnetic stirring apparatus;131- water-baths;133- fixes net;135- springs
Steel wire;140- control systems;141- rotational speed regulation buttons;143- timed reminding buttons;145- ultrasonic switch buttons;147- timings
Control button;149- computer heating control buttons.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the present invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of the selected implementation of the present invention
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is instruction or implies that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore not
It can be interpreted as limitation of the present invention.
In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, it is not understood to indicate or imply
Relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body;It can be mechanical connection, can also be electrical connection;It can be directly connected, it can also be indirect by intermediary
It is connected, can is the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or "lower"
It may include that the first and second features are in direct contact, can also not be to be in direct contact but pass through it including the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " include first special
Sign is right over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include fisrt feature immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Below in conjunction with the accompanying drawings, it elaborates to some embodiments of the present invention.In the present invention, in not contradiction or punching
In the case of prominent, all embodiments, embodiment and feature of the invention can be combined with each other.In the present invention, conventional
Unit, component etc., both can be commercially available, can also make by oneself according to the present disclosure.In the present invention, in order to prominent
The emphasis for going out the present invention to the omission that some conventional operations and unit, component carry out, or is only briefly described.
Embodiment
Referring to Fig.1 and 2, the present embodiment provides a kind of solid phase microextraction sampling device 100, including holder 110 and magnetic
Power agitating device 130, holder 110 is for fixing solid phase microextraction instrument handle 120.Holder 110 is fixed with magnetic stirring apparatus 130
Connection, solid phase microextraction instrument handle 120 are set to holder 110.In the present embodiment, holder 110 is perpendicular to magnetic stirring apparatus
130, i.e., holder 110 is perpendicular to the placed side of solid phase microextraction sampling device 100.Holder 110 in the present embodiment is cylinder
Structure, holder 110 are made by iron material.In other embodiments of the invention, holder 110 can be prismatic structures,
Its material can be that other materials, the present invention such as aluminium alloy do not limit it.
Holder 110 includes fixing piece 111 and fixing pipe 113, length direction and holder 110 of the fixing piece 111 along holder 110
Selectivity is fixedly connected, and fixing pipe 113 is detachably connected with fixing piece 111.In the present embodiment, fixing piece 111 is fixed spiral shell
Silk knob, fixed screw knob includes the clamping plate 112 being oppositely arranged, and fixing pipe 113 is positioned between two clamping plates 112, passes through
Fixing pipe 113 is fixed on holder 110 by driving screws knob.The number of fixed screw knob is two, is relatively arranged on branch
The both sides of frame 110.Fixing piece 111 can be as needed height opposite brackets 110 move, be fixed on holder in a certain height
110.For precise height, holder 110 is provided along its length graduated scale.It should be noted that fixing piece 111 and holder
110 connection type can be to be slidably connected, or the generic way of other the art, the present invention do not limit it
It is fixed.
In the present embodiment, fixing pipe 113 is L-shaped structure, and the bending part of fixing pipe 113 is connect with fixing piece 111.The knot
Structure can expand the range of the effect of fixing pipe 113, and the sample size for improving while extracting improves efficiency.In other realities of the invention
It applies in example, fixing pipe 113 can be W-shaped or other shapes structure, and the present invention does not limit it.
Solid phase microextraction instrument handle 120 is fixed on fixing pipe 113.Specifically, fixing pipe 113 is equipped with several through-holes 121, Gu
Phase extraction instrument handle 120 is fixed on fixing pipe 113 across through-hole 121.In order to improve the firm of solid phase microextraction instrument handle 120
Property, the aperture of through-hole 121 gradually increases or reduces.In the present embodiment, direction of the aperture of through-hole 121 from top to bottom end by
It is decrescence small.And the aperture on the top of through-hole 121 is slightly larger than the diameter of solid phase microextraction instrument handle 120, the bottom end of through-hole 121
Aperture is less than the diameter of solid phase microextraction instrument handle 120.It should be noted that the central axis of through-hole 121 is in horizontal plane.It should
Structure makes solid phase microextraction instrument handle 120 perpendicular to horizontal plane.In the present embodiment, multiple through-holes 121 in fixing pipe 113
The number of spaced set, through-hole 121 adjusts as needed.
Referring to FIG. 3, magnetic stirring apparatus 130 includes water-bath 131 and control system 140, control system 140 and water-bath
Pot 131 is electrically connected, the parameters such as temperature, ultrasound condition for controlling water-bath 131.
In order to ensure the firm of sample, ensure the quality of extraction, water-bath 131 is equipped with fixed net 133, for fixing sample
Bottle.In the present embodiment, fixed net 133 is set to the top of water-bath 131.Fixed net 133 using by the way of button connection and
Water-bath 131 connects.Specifically, fixed net 133 is formed by multiple spring steel wires 135 are crisscross, such as Fig. 4, every spring steel
The bending two ends of silk 135, are detachably connected with water-bath 131.It can be according to the size of fixed sample bottle, adjustment spring steel wire
The distance between 135, and then the sizing grid of fixed net 133 is adjusted, so that it is applicable in the sample bottle of different size, it is easy to use.
Control system 140 includes rotational speed regulation button 141, timed reminding button 143, ultrasonic switch button 145, timing control
Button 147 and computer heating control button 149 processed, rotational speed regulation button 141, ultrasonic switch button 145, are determined timed reminding button 143
When control button 147 be set to water-bath 131.Water-bath 131 be internally provided with thermocouple (not shown), ultrasonic probe (figure not
Show) and motor (not shown), thermocouple connect with computer heating control button 149, ultrasonic probe respectively with timed reminding button
143, ultrasonic switch button 145 and timing controlled button 147 connect, motor respectively with rotational speed regulation button 141, timed reminding
143 timing controlled button 147 of button connects.
The present embodiment also provide it is a kind of based on solid phase microextraction sampling device 100 solid phase microextraction sampling system (figure not
Show), including for electric installation (not shown) and solid phase microextraction sampling device 100, be used to sample to solid phase microextraction for electric installation
Device 100 provides electric energy.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of solid phase microextraction sampling device, which is characterized in that including holder and magnetic stirring apparatus, the holder with it is described
Magnetic stirring apparatus is fixedly connected,
The holder includes fixing piece and fixing pipe, length direction and holder selectivity of the fixing piece along the holder
It is fixedly connected, the fixing pipe is detachably connected with the fixing piece;
The fixing pipe is equipped with several through-holes, and the aperture of the through-hole gradually increases or reduces, for fixing solid-phase extracting instrument hand
Handle.
2. solid phase microextraction sampling device according to claim 1, which is characterized in that the fixing pipe is L-shaped structure, institute
The bending part for stating fixing pipe is connect with the fixing piece.
3. solid phase microextraction sampling device according to claim 1, which is characterized in that the holder is set along its length
There is graduated scale.
4. solid phase microextraction sampling device according to claim 1, which is characterized in that the central axis of the through-hole in
Horizontal plane.
5. solid phase microextraction sampling device according to claim 4, which is characterized in that the aperture of the through-hole from top to
The direction of bottom end is gradually reduced.
6. solid phase microextraction sampling device according to claim 1, which is characterized in that the magnetic stirring apparatus includes water
Bath and control system, the control system are electrically connected with the water-bath, for controlling the water-bath.
7. solid phase microextraction sampling device according to claim 6, which is characterized in that the water-bath is equipped with fixed net,
The fixed net is set to the top of the water-bath;
The fixed net is made of multiple spring steel wires, and the both ends of the every spring steel wire detachably connect with the water-bath
It connects.
8. solid phase microextraction sampling device according to claim 6, which is characterized in that the control system includes rotating speed tune
Section button, timed reminding button, ultrasonic switch button, timing controlled button and computer heating control button, the rotational speed regulation button,
The timed reminding button, the ultrasonic switch button, the timing controlled button and the computer heating control button may be contained within
The water-bath.
9. solid phase microextraction sampling device according to claim 8, which is characterized in that the water-bath is internally provided with heat
Galvanic couple, ultrasonic probe and motor, the thermocouple and the computer heating control button connects, the ultrasonic probe respectively with it is described
Timed reminding button, the ultrasonic switch button and the timing controlled button connects, the motor respectively with the rotating speed
Timing controlled button connects described in regulation button, the timed reminding button.
10. a kind of solid phase microextraction sampling system, which is characterized in that including for electric installation and such as any one of claim 1 to 9 institute
The solid phase microextraction sampling device stated, it is described to be electrically connected with the solid phase microextraction sampling device for electric installation.
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CN201810762039.5A CN108593822A (en) | 2018-07-12 | 2018-07-12 | Solid phase microextraction sampling device and its system |
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