CN205982059U - A trade liquid device for spectrophotometer cell - Google Patents
A trade liquid device for spectrophotometer cell Download PDFInfo
- Publication number
- CN205982059U CN205982059U CN201620652715.XU CN201620652715U CN205982059U CN 205982059 U CN205982059 U CN 205982059U CN 201620652715 U CN201620652715 U CN 201620652715U CN 205982059 U CN205982059 U CN 205982059U
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- Prior art keywords
- liquid
- cuvette
- pipe
- mouth
- cell
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Abstract
The utility model discloses a trade liquid device for spectrophotometer cell, cell locate the cell bench, it includes miniature drawing liquid device to trade the liquid device, miniature drawing liquid device includes: the liquid suction pipe, the liquid that awaits measuring is put into to liquid suction pipe one end, miniature drawing liquid pump, its with the other end of liquid suction pipe is connected, and drain pipe, drain pipe one end with miniature drawing liquid pump is connected, and the other end corresponds cell ware mouth setting. The utility model discloses a trade liquid device for spectrophotometer cell, await measuring when having solved the cell feed liquor and having gone out liquid and personnel to dish body's pollution, have avoided the loaded down with trivial details operation of cleaning the cell repeatedly for keep dry is clean in the external detection of cell, has improved detection accuracy and detection efficiency, avoids cleaning the cell process to dish body's damage, has maintained the safety of cell and instrument.
Description
Technical field
This utility model is related to spectrophotometer instrument field, changes liquid particularly to one kind for spectrophotometer cell
Device.
Background technology
Spectrophotometer is the common instrument of laboratory detection by quantitative, sensitive, the simple operation of detection, extensive utilization food,
The detection and analysis of all conglomeraties such as agriculture and forestry, pharmacy, chemical industry, environmental protection.Using spectrophotometer detection process, cuvette used
Use directly affect detection accuracy, repeatability with cleaning.In order to avoid error it is ensured that testing result is accurate, generally
Require handss to pinch cuvette hair side, before detection, cleaned with prepare liquid inside cuvette and pour prepare liquid into after three, four times, putting into
In cell detect when require cuvette outside must not adhere to prepare liquid, cuvette bright finish also must not have lines of the hand trace, foreign body or
Cut etc., this is because the cuvette bright finish being made up of optical glass is the path of light transmission, bright finish attachment liquid film, oils and fatss etc. are different
Thing and cut can cause light to produce refraction, affect testing result.As liquid is arranged at cuvette hair side or bottom, cuvette puts into colorimetric
During groove produce cross-contamination, liquid pollution cuvette bright finish or cell in, interference detection results or corrosion instrument.It can be seen that, than
Keep clean outside color ware in the detection, be dried, bright finish keeps being completely the essential condition of accurate detection and maintenance tool.
The cuvette length of side of conventional 1cm optical path is 1cm, maximum capacity 4.5ml in ware.According to law of Beer and light splitting light
Degree photometric road design requirement, is placed in cell after pouring 3-4ml liquid (accounting for the 66%-88% of cuvette volume) in cuvette,
Liquid level is not less than loophole upper side frame, meets spectrophotometer detection and requires, and liquid level is less than ware mouth, is difficult to pollute cuvette
Outward, it is the suitable addition detecting.In existing detection, generally vessel port is poured into prepare liquid against ware mouth, by cuvette ware mouth
Down, pour out prepare liquid.Cuvette ware mouth is little, and capacity is little, vessel port slightly deviation corresponding with ware mouth or pour into speed grasp not
Good, it is outside or because liquid measure causes liquid level too low less that liquid flow spills over cuvette；When liquid is poured out, cuvette ware mouth is usually
Also drop can be adhered to, careless slightly, drop flows on ware face.When batch sample detects, repeatedly pour into and pour out for hundreds of times and treat
Survey liquid, even if personnel's careful operation is it is also difficult to avoid prepare liquid to pollute the problem outside cuvette.In this regard, prior art is to use
Filter paper class absorbent material wipes outside cuvette, including cuvette bright finish.In order to the liquid of ware body surrounding and bottom is wiped
Only, careful process must be taken a certain time.If any carelessness, outside cuvette then may debris trace, bright finish adhere to Wiping material
Cast or by Wiping material damage and produce cut.Therefore, pour in prior art, pour out liquid and wipe removing ware body
The complex operation of liquid is time-consuming, also there is impact detection accuracy, damages the hidden danger such as instrument hence it is evident that impact batch sample detects effect
Rate.It has been proposed that with dropper injection or suctioning out prepare liquid, it is to avoid the outside contaminated problem of cuvette, but dropper imbibition and discharge opeing
Operation arduously time-consuming, be not suitable for batch sample detection.And dropper is drawn through less clean position after a sample, easily pollute next
Sample, causes error.It can be seen that, the solution that cuvette changes liquid problem can avoid detection error, improve and detect accurate and detection efficiency, dimension
Shield instrument safety.
The information being disclosed in this background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or imply in any form that this information structure has been existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of liquid changing device for spectrophotometer cell, thus overcoming ratio
Color ware carry out changing easily cause during liquid liquid pollution cuvette outside, existing wipe remove liquid method be also easy to produce pollution, rapid wear
Bad cuvette, affects testing result accuracy, the shortcoming reducing detection efficiency.
For achieving the above object, this utility model provides a kind of liquid changing device for spectrophotometer cell, than
On cuvette platform, described liquid changing device includes miniature pumping device to color ware, and described miniature pumping device includes：Liquid suction pipe,
Described liquid suction pipe one end is put in prepare liquid；Miniature drawing liquid pump, it is connected with the other end of described liquid suction pipe；And drain pipe,
Described drain pipe one end is connected with described miniature drawing liquid pump, the other end corresponding cuvette ware mouth setting.
Preferably, in technique scheme, it is provided with described cuvette ware mouth and draws liquid point mouth.
Preferably, in technique scheme, the described liquid point mouth that draws is formed in one with described cuvette.
Preferably, in technique scheme, described draw liquid point mouth on sleeve pipe, in a state of use, described sleeve pipe set
At described cuvette ware mouth, the gap between described sleeve pipe and described cuvette is provided with band.
Preferably, in technique scheme, described draw liquid point mouth concordant with the ware mouth of cuvette with band.
Preferably, in technique scheme, the described height drawing liquid point mouth is less than 1mm.
Preferably, in technique scheme, described cuvette side is provided with liquid level mark.
Preferably, in technique scheme, also include：Support；Pump platform, its on described support, described miniature drawing liquid
Pump is on described pump platform；Pipe support,, on described support, described pipe support is provided with drain pipe positioning pipe, described drain pipe for it
It is set up on described pipe support, and passes through the setting of described drain pipe positioning pipe, the positive contrast color ware of the described drain pipe mouth of pipe is centrally disposed；
And limitting casing,, on described cuvette platform, described cuvette is as in described limitting casing for it.
Preferably, in technique scheme, also include connecing liquid device, it is arranged near described cuvette platform, described connect liquid
Device includes connecing liquid container and located at the described funnel connecing on liquid container.
Compared with prior art, this utility model has the advantages that：
(1) liquid changing device for spectrophotometer cell of the present utility model, accurately controls cuvette liquid inlet volume, full
Foot detection requires.Also solve cuvette feed liquor and go out liquid change the prepare liquid and personnel pollution to ware body during liquid, it is to avoid
The damage being wiped repeatedly the troublesome operation of cuvette and wiping process to ware body is so that keep dry in the detection outside cuvette
Dry cleaning, not damaged, improve detection accuracy and detection efficiency, maintain the safety of cuvette and instrument it is adaptable to batch
The detection of sample.During drawing liquid pump work in this utility model, liquid only contacts pipeline, liquid changing device easy cleaning, easily avoids dirt
Dye.
(2) liquid changing device is set, decreases the harm of venomous injurant confrontation environment and personnel in detection.This utility model
Setting simple economy, easy to operate, cuvette is changing liquid process preventing polluting effect significantly, Environmental Safety.
Brief description
Fig. 1 is the structural representation according to the liquid changing device for spectrophotometer cell of the present utility model.
Fig. 2 be according to of the present utility model for cuvette in the liquid changing device of spectrophotometer cell as limitting casing
In structural representation.
Main Reference Numerals explanation：
1- cuvette, 2- cuvette platform, the miniature pumping device of 3-, 4- color comparison tube, 5- color comparison tube pipe support.6- connects liquid device.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
New protection domain is not limited by specific embodiment.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " inclusion " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or ingredient, and do not exclude other units
Part or other ingredient.
As shown in Figure 1 to Figure 2, according to this utility model specific embodiment a kind of for spectrophotometer cell
Liquid changing device, on spectrophotometric cuvette platform 2, cuvette platform is provided with limitting casing 21 to cuvette 1, and limitting casing 21 is in
" ", the inframe length of side length of side long 1-2mm outer compared with cuvette, cuvette 1 is put in cuvette limitting casing 21.Described liquid changing device
Including miniature pumping device 3, described miniature pumping device 3 includes：Support 31；Pump platform 32 is on described support 31, described micro-
Type drawing liquid pump 33 is on described pump platform 32；Liquid suction pipe 34 one end is stretched in the color comparison tube 4 filling prepare liquid, connects with prepare liquid
Touch, color comparison tube 4 is on color comparison tube pipe support 5.The other end of liquid suction pipe 34 is connected with miniature drawing liquid pump 33, miniature drawing liquid pump 33
Liquid outlet is connected with drain pipe 35, on drain pipe 35 frame and pipe support 36, pipe support 36 on described support 31, on described pipe support 36
It is provided with the positioning pipe 37 for being positioned to drain pipe, positioning pipe 37 is stereoplasm tube, and drain pipe 35 end is located at positioning pipe 37
Place, above cuvette, the drain pipe mouth of pipe positive contrast color ware is centrally disposed for positioning pipe 37.
The liquid changing device operating process that this utility model is used for spectrophotometer cell is as follows：Start miniature drawing liquid pump 33
On and off switch, liquid suction pipe washed for deionized water is put in prepare liquid, and range estimation prepare liquid liquid level reaches liquid level mark 2.5ml mark
Line, closes power supply immediately, and drain pipe stops flow liquid, and the amount of liquid in cuvette 1, in 3-4ml, ware mouth down allows liquid runs down
Draw liquid point mouth to pour out, cuvette is put in limitting casing, power-on, so repeatedly after 3 cleaning cuvettes, power-on, mesh
Survey prepare liquid liquid level and reach liquid level mark 2.5ml graticule, take out liquid suction pipe, treat that liquid in liquid suction pipe and drain pipe (about 1ml) all flows
Enter in cuvette, close power supply, in cuvette, amount of liquid is maintained between 3-4ml, and liquid suction pipe is put in deionized water.By outer wall
The cuvette of dried and clean is placed directly within cell, and detection finishes taking-up cuvette, ware mouth down, and liquid runs down draws liquid point mouth
After pouring out, cuvette is put in limitting casing.Liquid suction pipe takes out from go from water and places in next prepare liquid, repeats above-mentioned
Operate.Liquid outlet goes out liquid speed degree 0.5ml/s, and uniformly, in cuvette, to 2.5ml, personnel closed between the 1-3 second feed liquor flow velocity
Power supply, liquid inlet volume controls all the time between 3-4ml.Internal diameter 1mm drain pipe 35 is fixed on above support 31, that is, be erected at pipe support
On 36, the just internal length of side 1cm cuvette mouth of the mouth of pipe of drain pipe internal diameter 1mm, it is ensured that liquid accurately flows in cuvette, does not pollute
Outside cuvette ware.Above-mentioned setting is simple to operate, liquid inlet volume accurate stable, and cuvette is not contaminated in feed liquor and the when of falling liquid, keeps away
Exempt from prior art, to be wiped repeatedly the operation of cuvette, improve detection accuracy and detection efficiency.Prevent cuvette simultaneously
Impaired, maintain instrument safety.
Preferably, it is provided with described cuvette ware mouth and draw liquid point mouth 11.The described liquid point mouth that draws is integrated with described cuvette
Molding.Draw that liquid point mouth is concordant with the ware mouth of cuvette, the height drawing the sharp mouth of liquid is less than 1mm.
Preferably, with regard to drawing another embodiment of liquid point mouth setting, it is provided with cuvette 1 ware mouth and draws liquid point mouth 11, draw
On sleeve pipe, in a state of use, sleeve pipe is placed at cuvette ware mouth liquid point mouth 11, and the gap between sleeve pipe and cuvette leads to
Cross rubber filling sealing, form rubber seal tape.Described draw liquid point mouth 11 concordant with the ware mouth of cuvette with rubber seal tape.Draw
The height of liquid point mouth 11 is less than 1mm.Draw liquid point mouth height and be less than 1mm, not in light path scope, do not affect to detect.Draw liquid point mouth two
Can take as personnel the contact point of cuvette 1 in side, staff is not directly contacted with cuvette, it is to avoid the dirt of personnel's contrast color wares
Dye.Liquid runs down draws liquid point mouth 11 when pouring out cuvette 1, and dripless overflow is got off, and does not pollute ware body.Thus solve down liquid pair
The pollution problem of cuvette, thus keep cuvette dried and clean in the operation of falling liquid.
Preferably, it is provided with liquid level mark 12 by described cuvette 1.According to level change, it is easy to personnel clearly visually, accurately controls
Prepare liquid influx processed.
Preferably, the liquid changing device for spectrophotometer cell is additionally provided with and connects liquid device 6.Connect liquid device 6 near institute
State cuvette platform 2 to arrange, the described liquid device that connects includes connecing liquid container 61 and located at the described funnel 62 connecing on liquid container.
It is provided with and connects liquid device, decrease and pour poisonous in bottle, the irritant pollution to environment for the odor liquids and the harm to human body into.
The aforementioned description to specific illustrative embodiment of the present utility model illustrate that and illustration purpose.These
Description is not wishing to for this utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
A lot of changes and change.The purpose of selecting and describing the exemplary embodiment is that explaining certain principles of the present utility model
And its practical application, so that those skilled in the art is capable of and utilizes various different example of the present utility model
Property embodiment and various different selection and change.Scope of the present utility model is intended to by claims and its waits similar shape
Formula is limited.
Claims (9)
1. a kind of liquid changing device for spectrophotometer cell, cuvette is on cuvette platform it is characterised in that described
Liquid changing device includes miniature pumping device, and described miniature pumping device includes：
Liquid suction pipe, described liquid suction pipe one end is put in prepare liquid；
Miniature drawing liquid pump, it is connected with the other end of described liquid suction pipe；And
Drain pipe, described drain pipe one end is connected with described miniature drawing liquid pump, the other end corresponding cuvette ware mouth setting.
2. the liquid changing device for spectrophotometer cell according to claim 1 is it is characterised in that described cuvette
It is provided with ware mouth and draw liquid point mouth.
3. the liquid changing device for spectrophotometer cell according to claim 2 is it is characterised in that described draw liquid point
Mouth is formed in one with described cuvette.
4. the liquid changing device for spectrophotometer cell according to claim 2 is it is characterised in that described draw liquid point
On sleeve pipe, in a state of use, described sleeve pipe is placed at described cuvette ware mouth mouth, described sleeve pipe and described cuvette it
Between gap be provided with band.
5. the liquid changing device for spectrophotometer cell according to claim 4 is it is characterised in that described draw liquid point
Mouth is concordant with the ware mouth of cuvette with band.
6. the liquid changing device for spectrophotometer cell according to claim 2 is it is characterised in that described draw liquid point
The height of mouth is less than 1mm.
7. the liquid changing device for spectrophotometer cell according to claim 1 is it is characterised in that described cuvette
Side is provided with liquid level mark.
8. the liquid changing device for spectrophotometer cell according to claim 1 is it is characterised in that also include：
Support；
Pump platform,, on described support, described miniature drawing liquid pump is on described pump platform for it；
Pipe support,, on described support, described pipe support is provided with drain pipe positioning pipe for it, and described drain pipe is set up in described pipe support
On, and pass through the setting of described drain pipe positioning pipe, the positive contrast color ware of the described drain pipe mouth of pipe is centrally disposed；And
Limitting casing,, on described cuvette platform, described cuvette is as in described limitting casing for it.
9. the liquid changing device for spectrophotometer cell according to claim 1 is it is characterised in that also include connecing liquid
Device, it is arranged near described cuvette platform, and the described liquid device that connects includes connecing liquid container and connects on liquid container located at described
Funnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652715.XU CN205982059U (en) | 2016-06-24 | 2016-06-24 | A trade liquid device for spectrophotometer cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620652715.XU CN205982059U (en) | 2016-06-24 | 2016-06-24 | A trade liquid device for spectrophotometer cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205982059U true CN205982059U (en) | 2017-02-22 |
Family
ID=58021647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620652715.XU Expired - Fee Related CN205982059U (en) | 2016-06-24 | 2016-06-24 | A trade liquid device for spectrophotometer cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205982059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404673A (en) * | 2016-06-24 | 2017-02-15 | 中国林业科学研究院热带林业实验中心 | A liquid changing device used for a spectrophotometer colorimetric ware |
-
2016
- 2016-06-24 CN CN201620652715.XU patent/CN205982059U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106404673A (en) * | 2016-06-24 | 2017-02-15 | 中国林业科学研究院热带林业实验中心 | A liquid changing device used for a spectrophotometer colorimetric ware |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20200624 |