CN204841017U - Little extraction device of head space liquid phase - Google Patents
Little extraction device of head space liquid phase Download PDFInfo
- Publication number
- CN204841017U CN204841017U CN201520600390.6U CN201520600390U CN204841017U CN 204841017 U CN204841017 U CN 204841017U CN 201520600390 U CN201520600390 U CN 201520600390U CN 204841017 U CN204841017 U CN 204841017U
- Authority
- CN
- China
- Prior art keywords
- extraction
- ptfe
- flask
- extraction flask
- pivoting leaf
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a little extraction device of head space liquid phase, including support, iron clamp, micro - input ware, extraction needle, extraction flask, PTFE device, rubber ring, water bath beaker, thermometer, pivoting leaf, magnetic stirrers, glass stopper, trace input ware passes through the iron clamp to be fixed in the support top, the thermometer is installed in the support below, stretches into in the water bath beaker, the extraction needle is installed to trace input ware below, the PTFE device is installed at extraction needle lower extreme, arranges the extraction flask inner chamber in, the extraction flask is installed inside the water bath beaker, and the oral area is equipped with the glass stopper, magnetic stirrers installs in the extraction flask below, and the magnetic stirrers top is equipped with the pivoting leaf, the pivoting leaf is arranged in inside the extraction flask. This little extraction device of head space liquid phase collects sampling, extraction, concentrated and advance appearance in an organic whole, simple and convenient, quick, economic security, solvent -free, the selectivity good, high sensitivity.
Description
Technical field
The utility model relates to a kind of Sample Pretreatment Technique field, particularly relates to a kind of headspace liquid-phase microextraction device.
Background technology
Sample pre-treatments is a most important ring in whole analytic process.Traditional sample-pretreating method, as liquid-liquid extraction, soxhlet extraction, chromatography, distillation and absorption etc., ubiquity complex operation is consuming time, need to use in a large number human body and environmental toxic, harmful organic solvent, and be difficult to realize the shortcomings such as automation, therefore, develop time-saving and efficiency, a hot fields that sample pre-treatments new technology that organic solvent consumption is few is analytical chemistry research always.For saving time, reduce labor intensity, reduce amount of samples, realize the automation of sample pre-treatments, in linearize, and reduce the use of organic solvent as far as possible, development in recent years has been got up various new Sample Pretreatment Technique, such as SPE, molecular imprinting, SPME, hanging drop micro-extraction, liquid-phase micro-extraction etc. based on doughnut.But the device of SPE is more expensive, complex operation, different batches produce solid-phase extraction device poor reproducibility and amount of samples is larger; The recognition capability of molecular imprinting is comparatively large, selective poor in aqueous by the impact of loading solvent, the limitednumber etc. of molecular engram extractant; The extracting head cost of headspace liquid-phase microextraction device is higher, and extraction coating is easy to wear, and service life is short, repeatedly uses and also there is cross-contamination issue.SPME and gas-chromatography coupling are had greater advantage, and with also need a special desorption apparatus during high performance liquid chromatography coupling; Hanging drop micro-extraction needs artificial accurate operation, the operations such as filtration need be carried out to complex matrices sample, and sensitivity and the degree of accuracy poor, there is drop and can be detrimental at extraction process the danger that mistake even drops, especially accelerate to stir in the process improving extraction efficiency all the more so.
Summary of the invention
In order to solve the problem of short, inefficiency in existing sample pretreatment device service life; The utility model provides a kind of headspace liquid-phase microextraction device, and this headspace liquid-phase microextraction device centralized procurement sample, extraction, concentrated and sample introduction are in one, easy, quick, economic security, solvent-free, selective good; And it is highly sensitive.
The utility model solves the technical scheme that its technical problem adopts: a kind of headspace liquid-phase microextraction device, comprise support, iron clamp, micro-input device, extraction pin, extraction flask, PTFE device, rubber ring, water-bath beaker, thermometer, pivoting leaf, magnetic stirring apparatus, glass stopper, described micro-input device is fixed on above support by iron clamp; Thermometer is arranged on below support, extend in water-bath beaker; Below trace input device, extraction pin is installed; PTFE device is arranged on extraction pin lower end, is placed in extraction flask inner chamber; It is inner that extraction flask is arranged on water-bath beaker, and oral area is provided with glass stopper; Magnetic stirring apparatus is arranged on below extraction flask, is provided with pivoting leaf above magnetic stirring apparatus; Pivoting leaf is placed in extraction flask inside.
In the middle part of described extraction flask, rubber ring is installed, can effectively protects PTFE device not broken in extraction process.
Described PTFE device is fibrous by PTFE tube, PTFE; Fill up curling PTFE fiber in PTFE tube, form network structure, be easy to inject and accept phase.
The utility model, a kind of headspace liquid-phase microextraction device, operation principle: adopt heating water bath, the ml headspace bottle that sample solution is housed is placed in the water-bath beaker directly over constant temperature blender with magnetic force.First extract solution with microsyringe, then this solution is pushed into needle point above ml headspace bottle, after extraction a period of time, draw back drop, directly inject high performance liquid chromatography and carry out separation detection.Three-phase (on organic solvent, liquid space, feed liquid) is comprised in headspace liquid-phase microextraction, analyzing the chemical potential of thing in three-phase is promote to analyze thing enters organic drop driving force from feed liquid, can strengthen this driving force by constantly stirring the feed liquid generation new surface of continuous print.
A kind of headspace liquid-phase microextraction device of the utility model, its beneficial effect is:
1) this headspace liquid-phase microextraction device substantially reduces volatile materials and arrives the time needed for balancing, and can also eliminate the interference of sample matrices simultaneously;
2) this headspace liquid-phase microextraction device is simple and quick, eliminates step loaded down with trivial details, time-consuming in traditional liquid-liquid extraction;
3) this headspace liquid-phase microextraction device can tolerate higher stir speed (S.S.), overcomes the shortcoming of droplet instability in other extraction modes.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of a kind of headspace liquid-phase microextraction device of the utility model.
Fig. 2 is the structural representation of the utility model PTFE device.
In figure, 1, support, 2, iron clamp, 3, micro-input device, 4, extraction pin, 5, glass stopper, 6, PTFE device, 7, rubber ring, 8, water-bath beaker, 9, thermometer, 10, pivoting leaf, 11, magnetic stirring apparatus, 12, extraction flask, 61, PTFE tube, 62, PTFE fiber.
Detailed description of the invention
Please refer to Fig. 1, this specific embodiment, described micro-input device (3) is fixed on support (1) top by iron clamp (2); Thermometer (9) is arranged on support (1) below, extend in water-bath beaker (8); Trace input device (3) below is provided with extraction pin (4); PTFE device (6) is arranged on extraction pin (4) lower end, is placed in extraction flask (5) inner chamber; It is inner that extraction flask (5) is arranged on water-bath beaker (8), and oral area is provided with glass stopper (5); Magnetic stirring apparatus (11) is arranged on extraction flask (12) below, and magnetic stirring apparatus (11) top is provided with pivoting leaf (10); It is inner that pivoting leaf (10) is placed in extraction flask (12).
Please refer to Fig. 1, described extraction flask (12) middle part is provided with rubber ring (7), can effectively protect PTFE device (6) not broken in extraction process.
Please refer to Fig. 2, this specific embodiment, described PTFE device (6) is made up of PTFE tube (61), PTFE fiber (62); Fill up curling PTFE fiber (62) in PTFE tube (61), form network structure, be easy to inject and accept phase.
By reference to the accompanying drawings exemplary description is carried out to the utility model above; obvious realization of the present utility model is not subject to the restrictions described above; as long as have employed the various improvement that technical solutions of the utility model are carried out; or say that design of the present utility model and technical scheme are applied to other occasions, all in protection domain of the present utility model without improving.
Claims (3)
1. a headspace liquid-phase microextraction device, it is characterized in that: be made up of support, iron clamp, micro-input device, extraction pin, extraction flask, PTFE device, rubber ring, water-bath beaker, thermometer, pivoting leaf, magnetic stirring apparatus, glass stopper, described micro-input device is fixed on above support by iron clamp; Thermometer is arranged on below support, extend in water-bath beaker; Below trace input device, extraction pin is installed; PTFE device is arranged on extraction pin lower end, is placed in extraction flask inner chamber; It is inner that extraction flask is arranged on water-bath beaker, and oral area is provided with glass stopper; Magnetic stirring apparatus is arranged on below extraction flask, is provided with pivoting leaf above magnetic stirring apparatus; Pivoting leaf is placed in extraction flask inside.
2. a kind of headspace liquid-phase microextraction device according to claim 1, is characterized in that: be provided with rubber ring in the middle part of described extraction flask.
3. a kind of headspace liquid-phase microextraction device according to claim 1, is characterized in that: described PTFE device is fibrous by PTFE tube, PTFE; Fill up curling PTFE fiber in PTFE tube, form network structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600390.6U CN204841017U (en) | 2015-08-11 | 2015-08-11 | Little extraction device of head space liquid phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520600390.6U CN204841017U (en) | 2015-08-11 | 2015-08-11 | Little extraction device of head space liquid phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204841017U true CN204841017U (en) | 2015-12-09 |
Family
ID=54731616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520600390.6U Expired - Fee Related CN204841017U (en) | 2015-08-11 | 2015-08-11 | Little extraction device of head space liquid phase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204841017U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112147246A (en) * | 2020-09-23 | 2020-12-29 | 浙江求实环境监测有限公司 | Rapid detection method for polybrominated diphenyl ethers in soil |
| CN112316489A (en) * | 2019-08-05 | 2021-02-05 | 中国科学院微生物研究所 | Solid phase microextraction dual temperature control device and method |
-
2015
- 2015-08-11 CN CN201520600390.6U patent/CN204841017U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112316489A (en) * | 2019-08-05 | 2021-02-05 | 中国科学院微生物研究所 | Solid phase microextraction dual temperature control device and method |
| CN112147246A (en) * | 2020-09-23 | 2020-12-29 | 浙江求实环境监测有限公司 | Rapid detection method for polybrominated diphenyl ethers in soil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106959349B (en) | A kind of microtrabeculae enrichment sample injection method | |
| CN204841017U (en) | Little extraction device of head space liquid phase | |
| CN102841161A (en) | Gas chromatography-mass spectrometric detection method for octyl phenol and nonyl phenol in aquatic products | |
| CN104655759A (en) | Method for detecting recovery rate of [2,2-bis(4-hydroxyphenol)propane] absorbed by using aptamer functional magnetic nanomaterial | |
| CN106290673A (en) | A kind of method that eutectic solvent extract phase chromatography quickly measures rhodamine B | |
| WO2023284346A1 (en) | Method for detecting polycyclic musks in water body | |
| CN104155375B (en) | The method of amino benzenes compounds in synchronous derivative ultrasonic emulsification micro-extraction gas chromatography determination environmental water sample | |
| CN103499666A (en) | Method for detecting rape honey aroma components by solid phase microextraction | |
| CN102288473A (en) | On-line coupling system for dynamic liquid-liquid solid imprinted microextraction-liquid phase chromatogram and application thereof | |
| CN104923191B (en) | A kind of preparation method of the molecular imprinting-absorbing extraction stirring rod of alternate template | |
| CN202096788U (en) | Solid-phase micro-extraction device | |
| CN108593792A (en) | Magnetic solid phase extraction-HPLC- the ultraviolet detection methods of environment incretion interferent in water sample | |
| CN108435138A (en) | The solid-phase micro-extracting device prepared using the N that MOFs the is precursor synthesis carbon nanotube coatings adulterated and application | |
| CN202757793U (en) | Microscale sample moving machine | |
| CN103512849A (en) | Online detecting device and method for liquid microextraction spectrum of dispersion liquid | |
| CN103983717A (en) | Method for quickly measuring decomposable carcinogenic aromatic amine dye in textile | |
| CN204799291U (en) | Centrifuging tube | |
| CN203874505U (en) | Dispersion liquid-liquid micro-extraction device | |
| CN104730157A (en) | Method for detecting residues of malachite green in health products by using UPLC-MS | |
| CN211652723U (en) | Gas chromatograph | |
| CN203719953U (en) | Novel multifunctional sampling and sample feeding device | |
| CN103630627A (en) | Co-detection method for trace organic impurities in complex water sample | |
| CN102650621B (en) | Method for identifying sepiapterin extracted from silkworm body | |
| CN2584265Y (en) | Solid phase micro-extraction device | |
| CN201096675Y (en) | Continuous fluid-solid phase micro extraction device |
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: 20151209 Termination date: 20160811 |