Solid phase microextraction sampling device and its system
Technical field
The utility model relates to solid phase microextraction instrument technical fields, in particular to a kind of solid phase microextraction sampling cartridge
It sets and its system.
Background technique
Sample pre-treatments are a vital ring during analytical chemistry, occupy the 60% of entire analytic process with
On time, main analytical error is also from sample pre-treatments link.Sample pretreatment process it is advanced whether, directly close
It is the superiority and inferiority 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 since bring error is repeatedly shifted in different personnel operation and sample, 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
By the highest attention of analytical chemistry worker, used in technical field of chromatography extensive.Currently, use both at home and abroad is more extensive
SPME device is mainly produced by Supelco company 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 is still unable to satisfy the requirement of multiple samples pre-treatment simultaneously, while also limiting the volume of sample,
This directly affect SPME pretreatment technology accuracy and application range.In this context, it develops a set of suitable for different rule
The SPME sampling platform device that lattice sample, Multi-example can be handled simultaneously has raising analysis working efficiency and precision of analysis
There is particularly important meaning.
Utility model content
The purpose of this utility model is to provide a kind of solid phase microextraction sampling devices, and structure is simple, are suitable for not androgynous
The sample of product size, may be implemented Multi-example while handling, efficiently convenient.
The another object of the utility model is to provide a kind of solid phase microextraction sampling system, suitable for different volumes size
Sample, Multi-example may be implemented while handling, it is efficiently convenient, reduce the influence to sample of environment, time.
The embodiments of the present invention are achieved in that
A kind of solid phase microextraction sampling device, including bracket and magnetic stirring apparatus, bracket are fixed with magnetic stirring apparatus
Connection,
Bracket includes fixing piece and fixing pipe, and fixing piece is selectively fixedly connected along the length direction of bracket with bracket, Gu
Fixed pipe is detachably connected with fixing piece.
Fixing pipe is equipped with several through-holes, and the aperture of through-hole is gradually increased or reduces, for fixing solid-phase extracting instrument handle.
Further, in the utility model preferred embodiment, fixing pipe is L-shaped structure, the bending part of fixing pipe
It is connect with fixing piece.
Further, in the utility model preferred embodiment, bracket is provided along its length graduated scale.
Further, in the utility model preferred embodiment, the central axis of through-hole is in horizontal plane.
Further, in the utility model preferred embodiment, direction of the aperture of through-hole from top to bottom end is gradually
Reduce.
Further, in the utility model preferred embodiment, magnetic stirring apparatus includes water-bath and control system,
Control system is electrically connected with water-bath, for controlling water-bath.
Further, in the utility model preferred embodiment, water-bath is equipped with fixed net, and fixed net is set to water-bath
The top of pot.
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 the utility model preferred embodiment, control system includes rotational speed regulation button, timed reminding
Button, ultrasonic switch button, timing controlled button and computer heating control button, rotational speed regulation button, timed reminding button, ultrasound are opened
It closes button, timing controlled button and computer heating control button and is all set in water-bath.
Further, in the utility model preferred embodiment, the inside of water-bath be equipped with thermocouple, ultrasonic probe with
And motor, thermocouple are connect with computer heating control button, ultrasonic probe respectively with timed reminding button, ultrasonic switch button and fixed
When control button connect, motor connect with rotational speed regulation button, timed reminding button timing controlled button respectively.
A kind of solid phase microextraction sampling system, including power supply unit and above-mentioned solid phase micro-extraction sampling apparatus, power supply unit
It is electrically connected with solid phase microextraction sampling device.
The utility model embodiment the utility model has the advantages that
The utility model provides a kind of solid phase microextraction sampling device, including bracket and magnetic stirring apparatus.Bracket and magnetic
Power agitating device is fixedly connected.Bracket includes fixing piece and fixing pipe, length direction and bracket selectivity of the fixing piece along bracket
It is fixedly connected, fixing pipe is detachably connected with fixing piece.Fixing pipe is equipped with several through-holes, and the aperture of through-hole is gradually increased or subtracts
It is small, for fixing 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 consolidate
Determine solid phase microextraction instrument handle, using quick, simple, effectively reduces production cost.
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 fixed sample bottle by the way of button connection.
The structure and connection type make the assembly and disassembly of spring steel wire and replacement extremely convenient, 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.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of solid phase microextraction sampling device provided by the embodiment of the utility model;
Fig. 2 is the structural schematic diagram of bracket provided by the embodiment of the utility model and solid phase microextraction instrument handle;
Fig. 3 is the structural schematic diagram of magnetic stirring apparatus provided by the embodiment of the utility model;
Fig. 4 is the structural schematic diagram of spring steel wire provided by the embodiment of the utility model.
Icon: 100- solid phase microextraction sampling device;110- bracket;111- fixing piece;112- clamping plate;113- fixing pipe;
120- solid phase microextraction instrument handle;121- through-hole;130- magnetic stirring apparatus;131- water-bath;133- fixes net;135- spring
Steel wire;140- control system;141- rotational speed regulation button;143- timed reminding button;145- ultrasonic switch button;147- timing
Control button;149- computer heating control button.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and
The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.Therefore, below to attached
The detailed description of the embodiments of the present invention provided in figure is not intended to limit the range of claimed invention,
But it is merely representative of the selected embodiment of the utility model.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without creative efforts, belongs to the model of the utility model protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, or
The utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the utility model and letter
Change description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting 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 should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected;It can be mechanical connection, be also possible to be electrically connected;It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
With reference to the accompanying drawing, it elaborates to some embodiments of the utility model.In the present invention, not
In the case where contradiction or conflict, all embodiments, embodiment and feature of the utility model be can be combined with each other.In this reality
In novel, conventional unit, component etc. both can be commercially available, can also be according to content disclosed by the utility model certainly
System.In the present invention, in order to protrude the emphasis of the utility model, to some conventional operations and unit, component into
Capable omission, or be only briefly described.
Embodiment
Referring to Fig.1 and 2, the present embodiment provides a kind of solid phase microextraction sampling device 100, including bracket 110 and magnetic
Power agitating device 130, bracket 110 is for fixing solid phase microextraction instrument handle 120.Bracket 110 and magnetic stirring apparatus 130 are fixed
Connection, solid phase microextraction instrument handle 120 are set to bracket 110.In the present embodiment, bracket 110 is perpendicular to magnetic stirring apparatus
130, i.e. placed side of the bracket 110 perpendicular to solid phase microextraction sampling device 100.Bracket 110 in the present embodiment is cylinder
Structure, bracket 110 are made by iron material.In the other embodiments of the utility model, bracket 110 can be prismatic knot
Structure, material can be the other materials such as aluminium alloy, the utility model to it without limitation.
Bracket 110 includes fixing piece 111 and fixing pipe 113, length direction and bracket 110 of the fixing piece 111 along bracket 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 placed between two clamping plates 112, passes through
Fixing pipe 113 is fixed on bracket 110 by driving screws knob.The number of fixed screw knob is two, is relatively arranged on branch
The two sides of frame 110.The height that fixing piece 111 can according to need is moved with respect to bracket 110, is fixed on bracket in a certain height
110.For precise height, bracket 110 is provided along its length graduated scale.It should be noted that fixing piece 111 and bracket
110 connection type can be to be slidably connected, or the generic way of other the art, the utility model to it not
It limits.
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.The utility model its
In his embodiment, fixing pipe 113 can be W-shaped or other shapes structure, the utility model to it without limitation.
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 passes through through-hole 121 and is fixed on fixing pipe 113.In order to improve the firm of solid phase microextraction instrument handle 120
Property, the aperture of through-hole 121 is gradually increased 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.
Fig. 3 is referred to, 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 guarantee the firm of sample, guarantee 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 made of in a crisscross manner multiple spring steel wires 135, 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.The inside of water-bath 131 is equipped with thermocouple (not shown), (figure is not for ultrasonic probe
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
The connection of 143 timing controlled button 147 of button.
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 power supply unit (not shown) and solid phase microextraction sampling device 100, power supply unit to solid phase microextraction for sampling
Device 100 provides electric energy.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.