CN112666127A - Method for rapidly judging sample concentration end point and parallel concentrator - Google Patents
Method for rapidly judging sample concentration end point and parallel concentrator Download PDFInfo
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- CN112666127A CN112666127A CN202011587081.1A CN202011587081A CN112666127A CN 112666127 A CN112666127 A CN 112666127A CN 202011587081 A CN202011587081 A CN 202011587081A CN 112666127 A CN112666127 A CN 112666127A
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- sample
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- glass test
- film
- light
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012360 testing method Methods 0.000 claims abstract description 47
- 239000011521 glass Substances 0.000 claims abstract description 45
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 239000010408 film Substances 0.000 claims description 31
- 239000010409 thin film Substances 0.000 claims description 5
- 238000002474 experimental method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract 1
- 238000012031 short term test Methods 0.000 abstract 1
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Abstract
The invention relates to the technical field of parallel concentration instruments, in particular to a method for quickly judging a sample concentration end point and a parallel concentration instrument. Wherein, a parallel concentrated appearance of concentrated terminal point of short-term test sample, includes glass test tube, printing opacity baffle and detection device, and detection device includes laser designator, is used for installing the mount, film and the anti-dazzling screen of laser designator, and the inboard and the outside at the printing opacity baffle are established respectively to glass test tube and laser designator, and the film is pasted except that being close to other printing opacity baffles of laser designator on, and the anti-dazzling screen is pasted on the film. The invention skillfully utilizes the change of the laser refractive index to judge whether the sample reaches the concentration end point, achieves the effects of improving the working efficiency of experimenters and reducing errors by increasing smaller hardware cost, and simultaneously greatly reduces the risk of experiment failure caused by complete volatilization of the sample caused by judgment errors of the experimenters in the experiment process.
Description
Technical Field
The invention relates to the technical field of parallel concentration instruments, in particular to a method for quickly judging a sample concentration end point and a parallel concentration instrument.
Background
The parallel concentrator is a concentrating device commonly used in laboratories, and the basic principle is reduced pressure distillation, and the liquid is continuously evaporated by utilizing the principle that the boiling point of a solvent is reduced at low pressure to achieve the concentration of a sample. Usually the laboratory will dispose a parallel concentrator that can handle a plurality of samples simultaneously, in the experimentation, often need judge whether reach the appointed scale position of test tube after the sample is concentrated, the concentrated terminal point of sample promptly, relies on the naked eye to observe the test tube scale to judge basically at present. Because the water in most samples and the water bath is colorless transparent, so can't accurately judge whether concentrated to appointed scale position through the visual observation sample to, still arouse the erroneous judgement easily when a plurality of samples are experimental simultaneously, thereby can't guarantee that every sample accomplishes parallel processing, can lead to the sample to evaporate completely even and cause the experiment failure.
Disclosure of Invention
The invention aims to provide a parallel concentration instrument for quickly judging the concentration endpoint of a sample.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a judge concentrated parallel concentrator of concentrated terminal point of sample fast, includes glass test tube, printing opacity baffle and detection device, detection device includes laser pointer, is used for installing the mount, film and the anti-dazzling screen of laser pointer, the inboard and the outside at the printing opacity baffle are established with the laser pointer separately to the glass test tube, the film pastes except that on the other printing opacity baffles that are close to the laser pointer, the anti-dazzling screen pastes on the film.
Preferably, the film is a semi-transparent film, and the light shielding sheet is an opaque paper sheet or film.
One of the objectives of the present invention is to provide a method for rapidly determining the end point of sample concentration.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for rapidly judging a sample concentration end point adopts the parallel concentrator for rapidly judging the sample concentration end point, and comprises the following operation steps:
firstly, pouring a sample into a glass test tube, then installing a laser indicator on one side of a parallel concentrator, and attaching a thin film on a light-transmitting baffle plate through which laser penetrates the glass test tube to irradiate so that the laser irradiates on the thin film to form light spots;
adjusting the position of the laser to enable the laser to be aligned to the specified scale position on the glass test tube, then adjusting the size of the light spot, cutting the light shading sheet until the width of the light shading sheet is consistent with the diameter of the light spot, and then completely covering the light spot by using the light shading sheet;
when the sample in the glass test tube is concentrated and reaches the designated scale position, the laser does not penetrate through the sample any more, the refraction medium is changed, the refractive index is changed accordingly, the light spot position is deviated, when the light spot is completely shifted out of the range of the light shading sheet, namely, when the complete light spot can be observed by naked eyes, the sample is concentrated and reaches the designated scale position of the glass test tube, and the sample is the concentrated end point.
Preferably, the laser indicators and the glass test tubes with samples are kept consistent in number, each laser indicator is installed according to the method in the first step and the second step, a plurality of light spots are formed on the film, then the light spots corresponding to the glass test tubes are numbered and marked, then the light shielding sheets are used for covering all the light spots, and when an experimenter observes that a certain light spot is completely moved out of the range of the light shielding sheets, the corresponding glass test tube can be judged according to the number.
More preferably, the laser indicators correspond to glass test tubes containing samples one by one.
The invention has the beneficial effects that: the invention skillfully utilizes the change of the refractive index of the laser to quickly judge whether the sample reaches the concentration end point, and meanwhile, the light spots emitted by the laser on the film can be conveniently and quickly observed by experimenters, thereby not only improving the judgment accuracy, but also improving the working efficiency, and also being capable of respectively judging by numbering the light spots when simultaneously carrying out experiments on a plurality of samples, further improving the working efficiency of the experimenters, reducing the probability of misjudgment, and greatly reducing the risk of experiment failure caused by complete volatilization of the samples due to the misjudgment of the experimenters in the experiment process. Moreover, the detection device arranged in the parallel concentrator has the advantages of low cost, convenience in installation, simplicity in use and convenience in maintenance, can improve the accuracy of an experiment, and is suitable for popularization and application in a third-party detection laboratory.
Drawings
Fig. 1 is a perspective view in an embodiment of the present invention.
In the figure:
1-glass test tube 2-light-transmitting baffle 3-laser indicator
4-fixing frame 5-film 6-shading sheet.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Further, in the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not in direct contact, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
As shown in figure 1, a parallel concentration instrument for rapidly judging the concentration end point of a sample comprises a glass test tube 1, a light-transmitting baffle plate 2 and a detection device, wherein the detection device comprises a laser indicator 3, a fixing frame 4 for mounting the laser indicator 3, a film 5 and a light-shielding sheet 6, the glass test tube 1 and the laser indicator 3 are respectively arranged on the inner side and the outer side of the light-transmitting baffle plate 2, the film 5 is attached to other light-transmitting baffle plates 2 except the light-transmitting baffle plate close to the laser indicator 3, and the light-shielding sheet 6 is attached to the film 5. The film 5 may be a semi-transparent film, such as white PET semi-transparent film, and the light shielding sheet 6 may be a non-transparent paper sheet or film, such as black PET absorbent paper.
In addition, the parallel concentrator can be a high-flux vacuum parallel concentrator, the glass test tube 1 can be a wide-caliber glass test tube with scales, and the laser indicator 3 can be a red light point laser indicator.
The method for rapidly judging the sample concentration end point by adopting the parallel concentrator comprises the following operation steps:
firstly, installing a glass test tube 1 in a parallel concentration instrument, and pouring a sample into the glass test tube 1;
secondly, mounting the laser indicator 3 on one side of the parallel concentrator through a fixing frame 4;
thirdly, starting the laser indicator 3, enabling the laser emitted by the laser indicator 3 to pass through the glass test tube 1 and a sample in the tube to be refracted to one of the light-transmitting baffle plates 2, and then attaching a thin film 5 on the light-transmitting baffle plate 2 to enable the laser to be refracted to the thin film 5 to form light spots;
fourthly, adjusting the laser indicator 3 to enable the laser to be aligned to the specified scale position of the glass test tube 1, adjusting the size of the light spot, enabling the laser emitted by the laser indicator 3 to be refracted to the film 5 through the glass test tube 1 and the sample in the tube to form the light spot with the proper size, then cutting the light-shielding sheet 6 until the width is consistent with the diameter of the light spot, and then pasting the light-shielding sheet 6 on the film 5 to completely cover the light spot;
fifthly, open parallel concentrator and carry out concentrated processing to the sample, when the sample among the glass test tube 1 is concentrated to appointed scale position, the laser that laser designator 3 jetted out will no longer pass through the sample, directly pass glass test tube 1 and arrive on film 5, because the medium of laser refraction changes, make the refracting index change thereupon, thereby make the facula position on the film 5 take place the skew, the skew covers the 6 scopes of the shade of facula originally, make the facula can be observed by the experimenter, when the experimenter can observe complete facula, just the sample is concentrated and reaches the appointed scale position of glass test tube 1, be the concentrated terminal point of sample promptly.
The sample may be organic solvent commonly used in laboratory, such as methanol, ethyl acetate, dichloromethane, ethane, etc., but may also be other substances.
In this embodiment, the number of the laser indicators 3 is consistent with that of the glass test tubes 1 with samples, each laser indicator 3 is installed according to the method, a plurality of light spots are formed on the film 5, then the light spots corresponding to the glass test tubes 1 are numbered, then the light shielding sheet 6 is used for covering all the light spots, and when an experimenter observes that a certain light spot is completely moved out of the range of the light shielding sheet 6, the corresponding glass test tube 1 can be judged according to the number. The concentrated degree of sample in a plurality of glass test tubes 1 can be observed simultaneously in an experiment to the experimenter, on the basis that improves experiment accuracy, can also improve experimenter's work efficiency.
In this embodiment, the laser indicators 3 correspond to the glass test tubes 1 with samples one by one, so that the laser emitted by one laser indicator 3 can be prevented from simultaneously passing through a plurality of glass test tubes 1 with samples, misjudgment is reduced, light spots formed on the film 5 by the laser emitted by each laser indicator 3 correspond to each sample, and the judgment accuracy is further improved.
It should be noted that when the sample type is changed, the position of the laser pointer 3 does not need to be adjusted, and only the position of the light shielding sheet 6 needs to be moved to cover the light spot, so that the method is simple and convenient. And, when the sample concentrates to the appointed scale mark position of glass test tube 1, refraction medium changes, and the refracting index also changes thereupon, and the facula can deviate from original position, therefore when the facula that corresponds the serial number just can observe, then the sample that corresponds has concentrated to the appointed scale mark position of glass test tube 1.
It is worth mentioning, this embodiment has ingeniously utilized the change of laser refracting index to come the snap judgments sample whether to reach concentrated terminal point, and simultaneously, the facula of laser light on film 5 can be convenient for the experimenter to observe fast, not only improved and judged the accuracy, still improve work efficiency, moreover, when experimenting a plurality of samples simultaneously, can also judge respectively through numbering the facula, experimenter's work efficiency has further been improved, and the probability of erroneous judgement has been reduced, also greatly reduced the experimenter because of the sample that the erroneous judgement leads to volatilize completely and the risk of experimental failure in the experimentation. Moreover, the detection device that the parallel concentrator set up in this embodiment cost is lower, the installation is convenient, simple to use, maintenance convenience, can improve the experiment accuracy, is fit for popularizing and applying in the third party detection laboratory.
Although the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention.
Claims (5)
1. The utility model provides a parallel concentrator of concentrated terminal point of rapid judgement sample which characterized in that: including glass test tube (1), printing opacity baffle (2) and detection device, detection device includes laser pointer (3), is used for installing mount (4), film (5) and lens hood (6) of laser pointer (3), the inboard and the outside at printing opacity baffle (2) are established respectively to glass test tube (1) and laser pointer (3), film (5) are pasted except that other printing opacity baffle (2) near laser pointer (3) are gone up, lens hood (6) are pasted on film (5).
2. The apparatus of claim 1, wherein the apparatus comprises: the film (5) is a semi-transparent film, and the light shading sheet (6) is a non-transparent paper sheet or film.
3. A method for rapidly judging the concentration end point of a sample is characterized in that: the parallel concentration instrument for rapidly judging the concentration endpoint of the sample according to claim 1 or 2 is adopted, and comprises the following operation steps:
firstly, pouring a sample into a glass test tube (1), then installing a laser indicator (3) on one side of a parallel concentrator, and attaching a film (5) on a light-transmitting baffle (2) through which laser penetrates the glass test tube (1) to irradiate, so that the laser irradiates on the film (5) to form light spots;
secondly, adjusting the position of the laser to enable the laser to be aligned to the designated scale position on the glass test tube (1), then adjusting the size of the light spot, cutting the light shading sheet (6) to the width consistent with the diameter of the light spot, and then completely covering the light spot by the light shading sheet (6);
when the sample in the glass test tube (1) is concentrated and reaches the designated scale position, the laser does not penetrate through the sample any more, the refraction medium is changed, the refractive index is changed along with the change of the refraction index, the light spot position is deviated, when the light spot is completely shifted out of the range of the light shielding sheet (6), namely, when the complete light spot can be observed by naked eyes, the sample is concentrated and reaches the designated scale position of the glass test tube (1), and the sample is the concentrated end point.
4. The method for rapidly determining the end point of sample concentration according to claim 3, wherein: the laser designators (3) and the glass test tubes (1) with samples are kept consistent in number, each laser designator (3) is installed according to the method in the step one and the step two, a plurality of light spots are formed on the thin film (5), then the light spots corresponding to the glass test tubes (1) are numbered and marked, then all the light spots are covered by the light shielding sheet (6), and when an experimenter observes that a certain light spot is completely moved out of the range of the light shielding sheet (6), the corresponding glass test tube (1) can be judged according to the number.
5. The method of claim 4, wherein the end point of the concentration of the sample is determined by: the laser indicators (3) correspond to the glass test tubes (1) filled with samples one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587081.1A CN112666127A (en) | 2020-12-29 | 2020-12-29 | Method for rapidly judging sample concentration end point and parallel concentrator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587081.1A CN112666127A (en) | 2020-12-29 | 2020-12-29 | Method for rapidly judging sample concentration end point and parallel concentrator |
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| CN112666127A true CN112666127A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011587081.1A Pending CN112666127A (en) | 2020-12-29 | 2020-12-29 | Method for rapidly judging sample concentration end point and parallel concentrator |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB879248A (en) * | 1959-06-02 | 1961-10-11 | Hopkinsons Ltd | Improvements relating to water level indicators |
| US4365165A (en) * | 1978-12-20 | 1982-12-21 | Ceda S.P.A. | Level measurement device |
| CN2253468Y (en) * | 1996-04-22 | 1997-04-30 | 宋奇伟 | Liquid-level and parametric detecting sensor |
| CN201141836Y (en) * | 2007-10-09 | 2008-10-29 | 明琦翔 | Liquid refractive index measurement box |
| CN201237846Y (en) * | 2007-09-19 | 2009-05-13 | 季倬 | Solid thermal expansion demonstration instrument |
| CN202304952U (en) * | 2011-10-26 | 2012-07-04 | 信义超薄玻璃(东莞)有限公司 | Measuring device for glass liquid level |
| CN204165620U (en) * | 2014-08-28 | 2015-02-18 | 江苏农林职业技术学院 | A kind of contactless level galge |
| CN204575488U (en) * | 2015-04-30 | 2015-08-19 | 中国人民解放军后勤工程学院 | A kind of density measuring equipment with laser designation scale |
| CN205027590U (en) * | 2015-09-14 | 2016-02-10 | 鼎泰（湖北）生化科技设备制造有限公司 | Concentrated appearance of concentrated volume of accurate control |
| CN206497664U (en) * | 2017-01-26 | 2017-09-15 | 杨利霞 | A kind of apparatus for demonstrating of optical physics experiment |
-
2020
- 2020-12-29 CN CN202011587081.1A patent/CN112666127A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB879248A (en) * | 1959-06-02 | 1961-10-11 | Hopkinsons Ltd | Improvements relating to water level indicators |
| US4365165A (en) * | 1978-12-20 | 1982-12-21 | Ceda S.P.A. | Level measurement device |
| CN2253468Y (en) * | 1996-04-22 | 1997-04-30 | 宋奇伟 | Liquid-level and parametric detecting sensor |
| CN201237846Y (en) * | 2007-09-19 | 2009-05-13 | 季倬 | Solid thermal expansion demonstration instrument |
| CN201141836Y (en) * | 2007-10-09 | 2008-10-29 | 明琦翔 | Liquid refractive index measurement box |
| CN202304952U (en) * | 2011-10-26 | 2012-07-04 | 信义超薄玻璃(东莞)有限公司 | Measuring device for glass liquid level |
| CN204165620U (en) * | 2014-08-28 | 2015-02-18 | 江苏农林职业技术学院 | A kind of contactless level galge |
| CN204575488U (en) * | 2015-04-30 | 2015-08-19 | 中国人民解放军后勤工程学院 | A kind of density measuring equipment with laser designation scale |
| CN205027590U (en) * | 2015-09-14 | 2016-02-10 | 鼎泰（湖北）生化科技设备制造有限公司 | Concentrated appearance of concentrated volume of accurate control |
| CN206497664U (en) * | 2017-01-26 | 2017-09-15 | 杨利霞 | A kind of apparatus for demonstrating of optical physics experiment |
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Application publication date: 20210416 |
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