CN104857741B - A kind of valveless gate-type liquid liquid extraction plant - Google Patents
A kind of valveless gate-type liquid liquid extraction plant Download PDFInfo
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- CN104857741B CN104857741B CN201510253842.2A CN201510253842A CN104857741B CN 104857741 B CN104857741 B CN 104857741B CN 201510253842 A CN201510253842 A CN 201510253842A CN 104857741 B CN104857741 B CN 104857741B
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Abstract
The present invention relates to a kind of valveless gate-type liquid liquid extraction plant, this device includes the glass tubing of an inward at both ends bending and for by fixing for glass tubing rotatable fixation clamp on a shaker, described glass tubing one end is liquid feeding end, the other end is for setting graduated tapping end, and described liquid feeding end and tapping end further respectively have rubber stopper, rubber seal cap, described liquid feeding end and tapping end all curve inwardly and form the first bending angle and the second bending angle respectively, the interlude pipeline for housing fluid sample and extraction organic solvent is formed between the first described bending angle and the second bending angle.Compared with prior art, present configuration is simple, economical and practical, without the valve design of tradition separatory funnel, the liquid of residual is few, smooth during separatory, suitable in a small amount of sample that separatory funnel cannot use, being low to moderate the consumption of about a milliliter, extract and separate efficiency is high, and can predict exact volume when tapping separates.
Description
Technical field
The invention belongs to chemistry technique with the apparatus field, relate to a kind of liquid liquid extraction plant, especially relate to a kind of valveless gate-type liquid liquid extraction plant for processing a small amount of sample.
Background technology
Sample Pretreatment Technique (Samplepretreatmenttechnology) refers to the preparation of sample and sample adopts suitable decomposition and dissolving method and the process that component to be measured is extracted, purifies and concentrated, tested constitutional changes are made to become the form that can measure, thus qualitatively and quantitatively analyzing.Owing to component to be measured is by the interference of its Coexisting component or due to the restriction of the sensitivity of assay method own and the requirement to component state to be measured, most chemical detection and analysis method require in advance sample to be carried out effective, reasonably process, namely before being analyzed measuring, reply sample carries out the process of physics or chemistry, component to be measured is extracted from sample, gets rid of the interference to component to be measured of other component.Also by component to be measured dilution or concentration or be transformed into analyze and measure required state, to make the amount of component to be measured and existence form adapt to the requirement of selected analysis method simultaneously, be smoothed out so that measuring, and ensure to analyze accuracy and the reliability of measurement result.
Liquid-liquid extraction is a kind of conventional fluid sample pretreatment technology, utilize material difference of dissolubility or partition coefficient in the solvent of two kinds immiscible (or slightly solubles), material is made to transfer to another solvent in a kind of solvent, through repeated multiple times extraction, the method that the compound of the overwhelming majority is extracted.Liquid-liquid extraction mainly adopts separatory funnel device to carry out, and required sample size is from tens milliliters to hundreds of milliliter, even if adopting solid-phase extraction device, required sample size is also required to tens milliliters.
Such as, application number be 200620155650.4 Chinese utility model patent disclose the extraction equipment of a kind of Liquid liquid Separation, this device is made up of separatory funnel, glass tubing, effusion meter, air relief valve and gas cylinder, described glass tubing one section is positioned at separatory funnel, another section is stretched out from separatory funnel, it takes into account air relief valve equipped with flow, and is connected formation stream with gas cylinder.The technical scheme of above-mentioned patent disclosure is mainly based upon parts improvement and the combination that separatory funnel carries out, it is possible to suitable in extracting operation and the quantitative analysis of different capabilities and intensity.But for the fluid sample pre-treatment of several milliliters of even more trace, there is the problems such as method exploitation is difficult, expensive, precision is poor in current method or apparatus, seldom have simple in construction, easy to operate, extract extraction equipment abundant, cost-effective.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of valveless gate-type liquid liquid extraction plant that a small amount of or trace fluid sample can carry out liquid-liquid extraction is provided.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of valveless gate-type liquid liquid extraction plant, this device includes the glass tubing of an inward at both ends bending and for by fixing for glass tubing rotatable fixation clamp on a shaker, described glass tubing one end is liquid feeding end, the other end is for setting graduated tapping end, and described liquid feeding end further respectively has rubber stopper, rubber seal cap with tapping end.
Described liquid feeding end and tapping end all curve inwardly and form the first bending angle and the second bending angle respectively, form the interlude pipeline for housing fluid sample and extraction organic solvent between the first described bending angle and the second bending angle.
The first described bending angle and the second bending angle are arc fold bending angle.
Included angle A between described liquid feeding end and interlude pipeline is 25 °～35 °.
Included angle B between described tapping end and interlude pipeline is 25 °～35 °.
When extracting, the 2/3 of the cumulative volume≤interlude conduit volume of described fluid sample and extraction organic solvent.
Described rubber seal cap is silicone rubber seal cap.
Described rubber stopper is sillicon rubber blocking.
nullWhen extracting，Rubber seal cap is adopted to block the port of tapping end，Fluid sample and extraction organic solvent it is sequentially added into by liquid feeding end，And record two kinds of liquid volumes，Rubber stopper is adopted to be blocked by the port of liquid feeding end，Again through rotatable fixation clamp, glass tubing is fixed on a shaker，And make liquid feeding end with tapping end upward，Now，Fluid sample and extraction organic solvent are in the interlude pipeline between the first bending angle and the second bending angle，Open vibrator，Glass tubing is of reciprocating vibration，Fluid sample fully vibrates with extraction organic solvent and contacts，After vibration terminates，By glass tubing tapping end vertically downward，Stand，After organic facies and aqueous phase are substantially layered，Record organic facies volume，Extract the rubber stopper of liquid feeding end again，The port of liquid feeding end is blocked with finger，Slowly take out the rubber seal cap of tapping end，By finger control，Aqueous phase in glass tubing is put，Collect organic facies subsequently.
In actual use, according to extraction efficiency, can being repeated extracting by above step by fluid sample, after being associated with organic phase extracted solution, after nitrogen blows constant volume, sample introduction measures, and is initially added volume according to fluid sample, can converse the concentration of target substance.
Compared with prior art, the invention have the characteristics that:
1) without the valve design of tradition separatory funnel, the liquid of residual is few, smooth during separatory；
2) a small amount of sample that cannot use suitable in separatory funnel, is low to moderate the consumption of about a milliliter；
3) vibration of available horizontal vibrator, once carries out multiple sample, it is possible to use constant temperature oscillator carries out constant temperature extracting, can use hand shaken if desired, compared with wanting forward and reverse shake with separatory funnel, and rapid and convenient more；
4) owing to adopting the first bending angle and the second bending corner structure to arrange so that glass tubing, when shake, produces baffling effect, biphase it is more fully mixed when extracting；
5) owing to arranging scale at tapping end, tapping can predict exact volume when separating；
6) simple in construction, economical and practical, more convenient to operate, extract and separate efficiency is high.
Accompanying drawing explanation
Fig. 1 is the glass tubing of the present invention structural representation under adding liquid status；
Fig. 2 is the glass tubing of the present invention structural representation under oscillatory regime；
Fig. 3 is the glass tubing of the present invention structural representation under separatory state；
Description of reference numerals:
1 liquid feeding end, 2 tapping ends, 3 first bending angles, 4 second bending angles, 5 interlude pipelines, 6 scales, 7 rubber seal caps, 8 rubber stoppers, 9 organic faciess, 10 aqueous phases, 11 rotatable fixation clamps, 12 fingers, the angle between A liquid feeding end and interlude pipeline, the angle between B tapping end and interlude pipeline.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is carried out premised on technical solution of the present invention, gives detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1:
As Figure 1-3, a kind of valveless gate-type liquid liquid extraction plant, this device includes the glass tubing of an inward at both ends bending and for by fixing for glass tubing rotatable fixation clamp 11 on a shaker, glass tubing one end is liquid feeding end 1, the other end is for setting graduated tapping end 2, and liquid feeding end 1 further respectively has rubber stopper, rubber seal cap with tapping end 2.
Wherein, liquid feeding end 1 and tapping end 2 all curve inwardly and form the first bending angle 3 and the second bending angle 4 respectively, form the interlude pipeline 5 for housing fluid sample and extraction organic solvent between the first bending angle 3 and the second bending angle 4.First bending angle 3 and the second bending angle 4 are arc fold bending angle, and rubber seal cap 7 is silicone rubber seal cap, and rubber stopper 8 is sillicon rubber blocking.During use, the 2/3 of cumulative volume≤interlude pipeline 5 volume of fluid sample and extraction organic solvent.
In the present embodiment, the included angle A between liquid feeding end and interlude pipeline is 35 °, and the included angle B between tapping end and interlude pipeline is 35 °.
nullWhen extracting，Rubber seal cap 7 is adopted to block the port of tapping end 2，Fluid sample and extraction organic solvent it is sequentially added into by liquid feeding end 1，And record two kinds of liquid volumes，Rubber stopper 8 is adopted to be blocked by the port of liquid feeding end 1，Again through rotatable fixation clamp 11, glass tubing is fixed on a shaker，And make liquid feeding end 1 with tapping end 2 upward，Now，Fluid sample and extraction organic solvent are in the interlude pipeline 5 between the first bending angle 3 and the second bending angle 4，Open vibrator，Glass tubing is of reciprocating vibration，Fluid sample fully vibrates with extraction organic solvent and contacts，After vibration terminates，By glass tubing tapping end 2 vertically downward，Stand，After organic facies 9 and aqueous phase 10 are substantially layered，Record organic facies 9 volume，Extract the rubber stopper 8 of liquid feeding end 1 again，The port of liquid feeding end 1 is blocked with finger 12，Slowly take out the rubber seal cap 7 of tapping end 2，Controlled by finger 12，Aqueous phase 10 in glass tubing is put，Collect organic facies 9 subsequently.
In actual use, according to extraction efficiency, can being repeated extracting by above step by fluid sample, after merging organic facies 9 extracting solution, after nitrogen blows constant volume, sample introduction measures, and is initially added volume according to fluid sample, can converse the concentration of target substance.
Embodiment 2:
In the present embodiment, the included angle A between liquid feeding end and interlude pipeline is 30 °, and the included angle B between tapping end and interlude pipeline is 30 °, and all the other are with embodiment 1.
Embodiment 3:
In the present embodiment, the included angle A between liquid feeding end and interlude pipeline is 25 °, and the included angle B between tapping end and interlude pipeline is 25 °, and all the other are with embodiment 1.
Claims (7)
1. a valveless gate-type liquid liquid extraction plant, it is characterized in that, this device includes a glass tubing and for by fixing for glass tubing rotatable fixation clamp (11) on a shaker, described glass tubing one end is liquid feeding end (1), the other end is for setting graduated tapping end (2), described liquid feeding end (1) and tapping end (2) all curve inwardly and form the first bending angle (3) and the second bending angle (4) respectively, the interlude pipeline (5) for housing fluid sample and extraction organic solvent is formed between the first described bending angle (3) and the second bending angle (4), and described liquid feeding end (1) and tapping end (2) further respectively have rubber stopper (8), rubber seal cap (7).
2. a kind of valveless gate-type liquid liquid extraction plant according to claim 1, it is characterised in that the first described bending angle (3) and the second bending angle (4) are arc fold bending angle.
3. a kind of valveless gate-type liquid liquid extraction plant according to claim 1, it is characterised in that the included angle A between described liquid feeding end (1) and interlude pipeline (5) is 25 °～35 °.
4. a kind of valveless gate-type liquid liquid extraction plant according to claim 1, it is characterised in that the included angle B between described tapping end (2) and interlude pipeline (5) is 25 °～35 °.
5. a kind of valveless gate-type liquid liquid extraction plant according to claim 1, it is characterised in that when extracting, the 2/3 of cumulative volume≤interlude pipeline (5) volume of described fluid sample and extraction organic solvent.
6. a kind of valveless gate-type liquid liquid extraction plant according to claim 1, it is characterised in that described rubber seal cap (7) is silicone rubber seal cap.
7. a kind of valveless gate-type liquid liquid extraction plant according to claim 1, it is characterised in that described rubber stopper (8) is sillicon rubber blocking.
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| CN201510253842.2A CN104857741B (en) | 2015-05-19 | 2015-05-19 | A kind of valveless gate-type liquid liquid extraction plant |
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| CN201510253842.2A CN104857741B (en) | 2015-05-19 | 2015-05-19 | A kind of valveless gate-type liquid liquid extraction plant |
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| CN104857741B true CN104857741B (en) | 2016-07-06 |
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| CN108579139B (en) * | 2018-04-03 | 2021-04-20 | 上海化工研究院有限公司 | Miniature differential pressure type precipitation separation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB756049A (en) * | 1953-06-29 | 1956-08-29 | Atomic Energy Authority Uk | Improvements in or relating to liquid-liquid extraction columns |
| GB0624807D0 (en) * | 2006-12-13 | 2007-01-24 | Ineos Fluor Holdings Ltd | Process |
| CN200995079Y (en) * | 2006-12-27 | 2007-12-26 | 广东海洋大学 | Extractor for separating liquid |
| CN201168460Y (en) * | 2007-11-16 | 2008-12-24 | 武汉大学 | Liquor-liquor-liquor three-phase extraction plant |
| CN101954200A (en) * | 2009-07-14 | 2011-01-26 | 张娟 | Vertical countercurrent extracting method and device thereof |
| CN202143790U (en) * | 2011-06-03 | 2012-02-15 | 上海化工研究院 | Air floating type enclosed extraction device for heavy fine powders |
| CN102631958B (en) * | 2012-04-18 | 2014-05-07 | 苟如虎 | Extraction separation generator |
| CN102698467A (en) * | 2012-07-04 | 2012-10-03 | 清华大学 | Method for extracting and purifying natural uranium by using vibrating ring-shaped traverse baffle extracting tower |
| CN202777918U (en) * | 2012-09-03 | 2013-03-13 | 佳木斯大学 | Air-blast extraction and liquid division device for laboratory |
| CN102940978A (en) * | 2012-11-06 | 2013-02-27 | 宁波大学 | Surface acoustic wave acceleration droplet-droplet micro-extraction device and method |
| CN103520951B (en) * | 2013-10-09 | 2016-01-27 | 闽南师范大学 | A kind of method of gas-powered dispersive liquid-liquid microextraction |
| CN203620288U (en) * | 2013-12-09 | 2014-06-04 | 中国农业科学院农产品加工研究所 | Traditional chinese medicine extractor |
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Address after: 200062 Shanghai city Putuo District Yunling Road No. 345 Co-patentee after: Shanghai Tianke Chemical Detection Co., Ltd. Patentee after: Shanghai Chemical Research Institute Co., Ltd. Address before: 200062 Shanghai city Putuo District Yunling Road No. 345 Co-patentee before: Shanghai Tianke Chemical Detection Co., Ltd. Patentee before: Shanghai Research Institute of Chemical Industry |
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Address after: 200062 Shanghai city Putuo District Yunling Road No. 345 Co-patentee after: Shanghai Chemical Institute Testing Co., Ltd. Patentee after: Shanghai Chemical Research Institute Co., Ltd. Address before: 200062 Shanghai city Putuo District Yunling Road No. 345 Co-patentee before: Shanghai Tianke Chemical Detection Co., Ltd. Patentee before: Shanghai Chemical Research Institute Co., Ltd. |
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