CN105300886A - Integrated infrared liquid sample cell device and infrared sample cell - Google Patents
Integrated infrared liquid sample cell device and infrared sample cell Download PDFInfo
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- CN105300886A CN105300886A CN201510777779.2A CN201510777779A CN105300886A CN 105300886 A CN105300886 A CN 105300886A CN 201510777779 A CN201510777779 A CN 201510777779A CN 105300886 A CN105300886 A CN 105300886A
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- sample cell
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- sample
- locating slot
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Abstract
The invention provides an integrated infrared liquid sample cell device with a simple structure, use convenience and accurate detection result and an infrared sample cell. The integrated infrared liquid sample cell device comprises a sample cell and a sample cell support. The sample cell comprises a cell prepared from an infrared transparent material, the top of the cell is provided with an opening, the bottom surface, the front surface, the rear surface and the side surfaces of the cell are sealed, the front surface and the rear surface of the cell are infrared transparent sides, a sample tank for receiving a sample to be detected is arranged in the cell, the opening of the sample tank is an opening of the top of the cell, the sample cell support comprises a backboard and a positioning tank, the groove of the positioning tank matches with the sample cell, the sample cell is in a pluggable fit relationship with the positioning tank, the groove direction of the positioning tank is parallel to the rear plate, after the sample cell is inserted into the positioning tank, the front surface and the rear surface of the sample cell are parallel to the rear plate, the positioning tank corresponding to the front surface and the rear surface of the sample cell is provided with a first light transmittance part, and the rear plate corresponding to the rear surface of the sample cell and the first light transmittance part is provided with a second light transmittance part.
Description
Technical field
The present invention relates to infrared spectrum and detect the instrument and equipment analyzed and use, particularly relate to a kind of fluid sample infrared spectrum and detect the sample accommodating device analyzed and use.
Background technology
The research of infrared spectrum (InfraredSpectroscopy, IR) started from for 20 beginnings of the century, came out from infrared spectrometer in 1940, infrared spectrum widespread use in organic chemistry research.In organic molecule, the atom of constitutional chemistry key or functional group is in the state of constantly vibration, and the vibration frequency of its vibration frequency and infrared light is suitable.So, during with Infrared irradiation organic molecule, can there is absorption of vibrations in the chemical bond in molecule or functional group, different chemical bonds or functional group's absorption frequency difference, infrared spectrum will be in diverse location, thus the information containing which kind of chemical bond or functional group in molecule can be obtained.
So in order to the chemical bond that obtains organic molecule or functional group's information, usually need the mensuration of it being carried out to infrared spectrum.And for fluid sample, classic method utilizes liquid-film method, realizing in process of the present invention, inventor finds it, and there are the following problems, and liquid-film method is only applicable to nonvolatile sample, and non-polar solvent contact angle is too little, not easily form liquid film, adopt said apparatus to be difficult to sample preparation; And due to manually-operated uncertainty, the resultant error obtained is larger, often can only be used for qualitative analysis.
Occur that technician has in the industry invented the fluid sample pool device for infrared detection such as fixing liquid sample pool device successively in recent years, specifically can also find more information relevant to technique scheme in such as Publication about Document:
Application number: 201310235997.4, the Chinese patent application file that name is called " a kind of middle infrared spectrum analyzing liquid sample pond ";
Application number: 201420761959.2, the Chinese patent application file that name is called " mid-infrared light spectrometer ";
Application number: 200920107183.1, the Chinese patent application file that name is called " infrared spectrum variable temperature double-fluid sample cell device ";
Publication number: CN102706804A, the Chinese patent application file that name is called " far infrared sample cell ";
Publication number: CN104646082A, the Chinese patent application file that name is called " constant temperature infrared liquid sample cell ";
Publication number: CN204027995U, the Chinese patent application file that name is called " a kind of constant-temperature sample pool device ".
From with files, can find, infrared sample pool device basic structure of the prior art comprises: sample cell body, pad and window, wherein sample cell body is that the materials such as metal are made, inside be provided with the recess of accommodating pad and window, window comprises window and lower window, and window is made up of infrared transmitting materials such as calcium fluoride usually.Separated by pad between upper window and lower window, pad is the hollow shape such as O shape, and the space between upper window and lower window is for placing fluid sample to be measured.At upper and lower window, between pad and sample cell body, the structures such as packing ring are adopted to seal testing liquid.When placing testing sample, first open sample cell body, place lower window and pad, then instill testing liquid, cover window, then close sample cell body, compresses upper and lower window by sample cell body, gets out fluid sample pool device to be measured.
Realizing in process of the present invention, although inventor finds that the fixing liquid sample pool device occurred in recent years can be used for measuring volatile liquid, there is assembling more complicated in whole device, window is fragile, the shortcomings such as liquid thickness is wayward, not easy to clean, make it use and are restricted.
Summary of the invention
For this reason, need to provide a kind of structure simple, easy to use, testing result is infrared liquid sample pool device and infrared sample cell accurately.
For achieving the above object, inventor provide a kind of integrated infrared liquid sample pool device, comprise sample cell and sample cell support;
Described sample cell comprises the pond body prepared by infrared transmitting material, body top, pond is provided with opening, body bottom surface, pond, front, the back side and side seal, the front of pond body and the back side are infrared transmission face, offer in the body of pond accommodating testing sample sample cell, the notch of sample cell is the opening at body top, pond;
Described sample cell support comprises backboard and locating slot, described locating slot is connected with backboard, groove and the sample cell pond body of locating slot are suitable, sample cell pond body can coordinate with locating slot in plug, the groove direction backboard of locating slot is parallel, after sample cell pond body inserts locating slot, the front of sample cell pond body is parallel with backboard with the back side, the position at Chi Ti front, locating slot counter sample pond and the back side, offer the first transmittance section, the position of the Chi Ti back side, backboard counter sample pond and the first transmittance section, offers the second transmittance section.
Optionally, the external profile in described pond is rectangular parallelepiped, and described pond body is calcium fluoride material, and locating slot takes the shape of the letter U structure.
Optionally, the first notch that the notch of described sample cell comprises rectangle and the second notch be communicated with the first notch, the long limit of the rectangle of the first notch is parallel with the front of sample cell, and the radial dimension of described second notch is greater than the width of the first notch rectangle.
Optionally, the xsect of described sample cell is consistent with the notch shape of sample cell, and described second notch is circular.
Optionally, described backboard is selected from the connected mode passed through between locating slot: screw is connected, clamping, and welding is with bonding.
Optionally, described backboard is sheet metal, and described locating slot is plastic channel, rubber groove or metallic channel, and locating slot takes the shape of the letter U structure.
Inventor additionally provides a kind of integrated infrared liquid sample cell, described sample cell comprises the pond body prepared by infrared transmitting material, body top, pond is provided with opening, body bottom surface, pond, front, the back side and side seal, the front of pond body and the back side are infrared transmission face, offer in the body of pond accommodating testing sample sample cell, the notch of sample cell is the opening at body top, pond.
Optionally, the external profile in described pond is rectangular parallelepiped, and described pond body is calcium fluoride material.
Optionally, the first notch that the notch of described sample cell comprises rectangle and the second notch be communicated with the first notch, the long limit of the rectangle of the first notch is parallel with the front of sample cell, and the radial dimension of described second notch is greater than the width of the first notch rectangle.
Optionally, the xsect of described sample cell is consistent with the notch shape of sample cell, and described second notch is circular.
Be different from prior art, technique scheme in use, directly add fluid sample by the notch of the sample cell at sample cell top, due to body bottom surface, pond, front, the back side and side seal, define the liquid sample pool of integration, because omitted herein the loaded down with trivial details flow process of building sample cell, and there is not the problem that fluid sample that the hydraulic tightness problem due to the misoperation in build process or vessel causes reveals.Further, due to the fluid sample pool structure of integration, the size of sample cell is fixed, and the fluid sample thickness therefore in sample cell is fixed, and accuracy of measurement is high.When measuring, the locating slot that the sample cell having injected sample inserts sample cell support is fixed, is inserted into by the backboard of sample cell support in the sample position of infrared spectrometer and detects, when needing to change sample, sample cell is extracted from the locating slot of sample cell support, very convenient.
Accompanying drawing explanation
Fig. 1 is infrared liquid sample pool device perspective view integrated described in embodiment;
Fig. 2 is infrared liquid sample cell perspective view integrated described in embodiment;
Fig. 3 is backboard perspective view described in embodiment;
Fig. 4 is locating slot perspective view described in embodiment;
The cross-sectional view that Fig. 5 is formed along the tangent plane parallel with sample cell front for locating slot described in embodiment;
The cross-sectional view that Fig. 6 is formed along the tangent plane parallel with sample cell side for locating slot described in embodiment;
Fig. 7 overlooks the pond body top structure schematic diagram of state for sample cell described in embodiment;
The cross-sectional view that Fig. 8 is formed for tangent plane that sample cell described in embodiment is laterally parallel.
Description of reference numerals:
10, Chi Ti,
11, pond body top,
12, pond body bottom surface,
13, pond body front,
14, the pond body back side,
15, pond body side surface,
16, sample cell,
161, the notch of sample cell,
1611, the first notch,
1612, the second notch,
21, locating slot,
210, the first transmittance section,
212, the groove of locating slot,
218, screw,
22, backboard,
220, the second transmittance section,
228, through hole.
Embodiment
By describe in detail technical scheme technology contents, structural attitude, realized object and effect, coordinate accompanying drawing to be explained in detail below in conjunction with specific embodiment.
Refer to Fig. 1 to Fig. 8, present embodiments provide a kind of integrated infrared liquid sample pool device, comprise sample cell and sample cell support; The wherein integrated infrared liquid sample cell of sample cell.
As shown in Figure 1, Figure 2, shown in Fig. 7, Fig. 8, sample cell comprises the pond body 10 prepared by infrared transmitting material, body top, pond 11 is provided with opening, body bottom surface, pond 12, body front, pond 13, the body back side, pond 14 seal with pond body side surface 15, the front of pond body and the back side are infrared transmission face, offer in the body of pond accommodating testing sample sample cell 16, the notch 161 of sample cell is the opening at body top, pond.
In the above-described embodiments, the infrared transmitting material preparing pond body is calcium fluoride material.
Fig. 1, Fig. 2, Fig. 7, embodiment illustrated in fig. 8 in, the external profile in pond is rectangular parallelepiped, and the pond body of rectangular parallelepiped is easy to processing, produces, and is also convenient to coordinate with the locating slot grafting of sample cell support.Certainly, in other embodiments, the pond body of sample cell is oblate cylindricality, or xsect is triangle, the trapezoidal shape such as flat prismatic, and in these embodiments, the styletable face at oblate cylindricality or flat prismatic two ends constitutes body front, pond and the body back side, pond.
As shown in Figure 1, Figure 2, Fig. 7, embodiment illustrated in fig. 8, the first notch 1611 that the notch 161 of sample cell comprises rectangle and the second notch 1612 be communicated with the first notch, the long limit of the rectangle of the first notch 1611 is parallel with the front of sample cell, and the radial dimension of described second notch 1612 is greater than the width of the first notch rectangle.
Concrete, the xsect of described sample cell is consistent with the notch shape of sample cell, and such structure is easy to processing, and the thickness of the fluid sample film of formation is homogeneous up and down, and described 1612, second notch is circular.
In infrared detection, sometimes need fluid sample film fluid sample to be detected being prepared as very thin thickness, therefore the body portion thickness of sample cell is just very thin, if the consistency of thickness of the notch language sample cell main part of sample cell, so the notch of sample cell is just very narrow, be difficult to add sample, be also difficult to topple over the sample detected.In embodiment, the scheme adopted is the width that the radial dimension of the second notch 1612 is greater than the first notch rectangle, like this when adding liquid sample, sample can be added easily toward the second notch place by equipment such as dropper, liquid-transfering gun, transfer pipet, needle tubings, solve the first notch 1611 narrow time add a sample difficult problem not easily, also facilitate simultaneously and the fluid sample detected toppled over out from the second notch 1612.
As shown in Fig. 1, Fig. 3 ~ Fig. 6, described sample cell support comprises backboard 22 and locating slot 21, described locating slot 21 is connected with backboard 22, the groove 212 of locating slot is suitable with sample cell pond body 10, sample cell pond body 10 can coordinate with locating slot in plug, the groove direction backboard of locating slot is parallel, after making pond body 10 insert locating slot like this, body front, pond 13 is parallel with backboard 22 with the body back side, pond 14, the position at the corresponding body front, pond 13 of locating slot and the body back side, pond 14, offer the first transmittance section 210, such locating slot 21 entirety is in U-shaped structure.
The position of the back side, backboard counter sample pond and the first transmittance section, offers the second transmittance section 220.When detecting, infrared light passes sample cell pond body by the first transmittance section and the second transmittance section, realizes the detection to sample.
The connected mode passed through between backboard with locating slot can be connected for screw, clamping, welding or bonding.Concrete, as Fig. 3 ~ embodiment illustrated in fig. 6, backboard 22 offers through hole 228, locating slot 21 offers screw 218, by through through hole 228, and be bolted in the screw of screw 218, backboard 22 and locating slot 21 are fixed.
In embodiment, backboard 22 can select sheet metal, and such as corrosion resistant plate, aluminium alloy plate, copper alloy plate etc., can certainly use plastic plate.
Described locating slot is plastic channel, and rubber groove or metallic channel, concrete example is as polytetrafluoroethylmaterial material etc.
Above-described embodiment in use, directly add fluid sample by the notch of the sample cell at sample cell top, due to body bottom surface, pond, front, the back side and side seal, define the liquid sample pool of integration, because omitted herein the loaded down with trivial details flow process of building sample cell, and there is not the problem that fluid sample that the hydraulic tightness problem due to the misoperation in build process or vessel causes reveals.Further, due to the fluid sample pool structure of integration, the size of sample cell is fixed, and the fluid sample thickness therefore in sample cell is fixed, and accuracy of measurement is high.When measuring, the locating slot that the sample cell having injected sample inserts sample cell support is fixed, is inserted into by the backboard of sample cell support in the sample position of infrared spectrometer and detects, when needing to change sample, sample cell is extracted from the locating slot of sample cell support, very convenient.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or terminal device and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or terminal device.When not more restrictions, the key element limited by statement " comprising ... " or " comprising ... ", and be not precluded within process, method, article or the terminal device comprising described key element and also there is other key element.In addition, in this article, " be greater than ", " being less than ", " exceeding " etc. be interpreted as and do not comprise this number; " more than ", " below ", " within " etc. be interpreted as and comprise this number.
Although be described the various embodiments described above; but those skilled in the art are once obtain the basic creative concept of cicada; then can make other change and amendment to these embodiments; so the foregoing is only embodiments of the invention; not thereby scope of patent protection of the present invention is limited; every utilize instructions of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included within scope of patent protection of the present invention.
Claims (10)
1. an integrated infrared liquid sample pool device, is characterized in that, comprises sample cell and sample cell support;
Described sample cell comprises the pond body prepared by infrared transmitting material, body top, pond is provided with opening, body bottom surface, pond, front, the back side and side seal, the front of pond body and the back side are infrared transmission face, offer in the body of pond accommodating testing sample sample cell, the notch of sample cell is the opening at body top, pond;
Described sample cell support comprises backboard and locating slot, described locating slot is connected with backboard, groove and the sample cell pond body of locating slot are suitable, sample cell pond body can coordinate with locating slot in plug, the groove direction backboard of locating slot is parallel, after sample cell pond body inserts locating slot, the front of sample cell pond body is parallel with backboard with the back side, the position at Chi Ti front, locating slot counter sample pond and the back side, offer the first transmittance section, the position of the Chi Ti back side, backboard counter sample pond and the first transmittance section, offers the second transmittance section.
2. integrated infrared liquid sample pool device according to claim 1, is characterized in that, the external profile in described pond is rectangular parallelepiped, and described pond body is calcium fluoride material, and locating slot takes the shape of the letter U structure.
3. integrated infrared liquid sample pool device according to claim 1, it is characterized in that, the first notch that the notch of described sample cell comprises rectangle and the second notch be communicated with the first notch, the long limit of the rectangle of the first notch is parallel with the front of sample cell, and the radial dimension of described second notch is greater than the width of the first notch rectangle.
4. integrated infrared liquid sample pool device according to claim 3, it is characterized in that, the xsect of described sample cell is consistent with the notch shape of sample cell, and described second notch is circular.
5. integrated infrared liquid sample pool device according to claim 1, it is characterized in that, described backboard is selected from the connected mode passed through between locating slot: screw is connected, clamping, and welding is with bonding.
6. integrated infrared liquid sample pool device according to claim 1, is characterized in that, described backboard is sheet metal, and described locating slot is plastic channel, rubber groove or metallic channel.
7. an integrated infrared liquid sample cell, it is characterized in that, described sample cell comprises the pond body prepared by infrared transmitting material, body top, pond is provided with opening, body bottom surface, pond, front, the back side and side seal, the front of pond body and the back side are infrared transmission face, offer in the body of pond accommodating testing sample sample cell, the notch of sample cell is the opening at body top, pond.
8. integrated infrared liquid sample cell according to claim 1, is characterized in that, the external profile in described pond is rectangular parallelepiped, and described pond body is calcium fluoride material.
9. integrated infrared liquid sample cell according to claim 1, it is characterized in that, the first notch that the notch of described sample cell comprises rectangle and the second notch be communicated with the first notch, the long limit of the rectangle of the first notch is parallel with the front of sample cell, and the radial dimension of described second notch is greater than the width of the first notch rectangle.
10. integrated infrared liquid sample cell according to claim 9, it is characterized in that, the xsect of described sample cell is consistent with the notch shape of sample cell, and described second notch is circular.
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| CN201510777779.2A CN105300886B (en) | 2015-11-13 | 2015-11-13 | Integrated infrared liquid sample pool device and infrared sample cell |
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| CN201510777779.2A CN105300886B (en) | 2015-11-13 | 2015-11-13 | Integrated infrared liquid sample pool device and infrared sample cell |
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| CN105300886B CN105300886B (en) | 2018-08-21 |
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Cited By (3)
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| CN106289919A (en) * | 2016-10-31 | 2017-01-04 | 复旦大学 | A kind of Fourier transform infrared spectroscopy preparation of samples method for analyzing secondary protein structure in aqueous solution |
| CN116087103A (en) * | 2023-01-13 | 2023-05-09 | 中国科学院空间应用工程与技术中心 | Sample stage and sample analysis system applicable to infrared and Raman spectrum analysis |
| CN116087102A (en) * | 2023-01-13 | 2023-05-09 | 中国科学院空间应用工程与技术中心 | Experimental device for ice satellite and open-sea ocean extreme environment simulation system |
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| CN116087102A (en) * | 2023-01-13 | 2023-05-09 | 中国科学院空间应用工程与技术中心 | Experimental device for ice satellite and open-sea ocean extreme environment simulation system |
| CN116087102B (en) * | 2023-01-13 | 2023-11-03 | 中国科学院空间应用工程与技术中心 | Experimental device for ice satellite and open-sea ocean extreme environment simulation system |
| CN116087103B (en) * | 2023-01-13 | 2023-11-07 | 中国科学院空间应用工程与技术中心 | Sample stage and sample analysis system applicable to infrared and Raman spectrum analysis |
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| CN105300886B (en) | 2018-08-21 |
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