CN101972635B - Preparation method of stir and extraction bar for polymer coating - Google Patents
Preparation method of stir and extraction bar for polymer coating Download PDFInfo
- Publication number
- CN101972635B CN101972635B CN2010102971914A CN201010297191A CN101972635B CN 101972635 B CN101972635 B CN 101972635B CN 2010102971914 A CN2010102971914 A CN 2010102971914A CN 201010297191 A CN201010297191 A CN 201010297191A CN 101972635 B CN101972635 B CN 101972635B
- Authority
- CN
- China
- Prior art keywords
- bar
- coating
- extraction
- stir
- extraction bar
- 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
- 238000000605 extraction Methods 0.000 title claims abstract description 38
- 238000003756 stirring Methods 0.000 title claims abstract description 37
- 239000011248 coating agent Substances 0.000 title claims abstract description 24
- 238000000576 coating method Methods 0.000 title claims abstract description 24
- 229920000642 polymer Polymers 0.000 title claims abstract description 12
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003463 adsorbent Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 229920001577 copolymer Polymers 0.000 claims abstract description 6
- 238000011282 treatment Methods 0.000 claims abstract description 5
- 239000004793 Polystyrene Substances 0.000 claims abstract description 4
- 229920002223 polystyrene Polymers 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 239000003822 epoxy resin Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 229920000647 polyepoxide Polymers 0.000 claims description 14
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- 150000003738 xylenes Chemical class 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 150000008065 acid anhydrides Chemical class 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 125000006160 pyromellitic dianhydride group Chemical group 0.000 claims description 2
- 238000010189 synthetic method Methods 0.000 claims description 2
- 125000001302 tertiary amino group Chemical group 0.000 claims description 2
- 235000010215 titanium dioxide Nutrition 0.000 claims description 2
- 239000000523 sample Substances 0.000 abstract description 12
- 239000002904 solvent Substances 0.000 abstract description 6
- 235000013305 food Nutrition 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004454 trace mineral analysis Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012472 biological sample Substances 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract description 2
- 238000005406 washing Methods 0.000 abstract description 2
- 238000007598 dipping method Methods 0.000 abstract 1
- 238000002470 solid-phase micro-extraction Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000000092 stir-bar solid-phase extraction Methods 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 238000004817 gas chromatography Methods 0.000 description 4
- 239000004205 dimethyl polysiloxane Substances 0.000 description 3
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 3
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 241001589086 Bellapiscis medius Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 1
- 238000000944 Soxhlet extraction Methods 0.000 description 1
- 239000012296 anti-solvent Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 230000002124 endocrine Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000622 liquid--liquid extraction Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 238000005220 pharmaceutical analysis Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 239000013047 polymeric layer Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229920005573 silicon-containing polymer Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a stir and extraction bar for a polymer coating and a preparation method thereof, belonging to the field of trace analysis of organic matters in food, environmental and biological samples. The stir and extraction bar for the polymer coating is composed of a carrier and a coating on the surface of the carrier, wherein, the carrier is a metal bar the length and the diameter of which are 10-40mm and 0.5-5mm respectively; and the coating comprises a polymer layer, and the polymer is one or more of a styrene-divinyl benzene copolymer, crosslinked polystyrene or crosslinked poly-divinyl benzene. The preparation method comprises the following steps: selecting and pre-treating the bar; dipping the coating on the surface of the bar; and curing the coating and removing impurities to finally obtain the finished product of the stir and extraction bar. The stir and extraction bar has higher mechanical strength and good durability and contains a coating material with good heat stability and solvent washing resistance, thus realizing enrichment of a trace amount of the organic matters. The invention is more beneficial to treatment of the liquid sample and static headspace trapping by an adsorbent.
Description
Technical field
The present invention relates to organic trace analysis field in food, environment, the biological sample, particularly a kind of polymer coating stirs extraction bar and preparation method thereof.
Background technology
Because the matrix of most of analytic sample is quite complicated with composition, sample pre-treatments becomes important step indispensable in the sample analysis under normal conditions.It plays and concentrates tested trace components, the effect of sensitivity of raising method and cleaning sample.
Traditional sample-pretreating method has liquid-liquid extraction, soxhlet extraction, chromatography, distillation, absorption, centrifugal and filtration etc., but these methods generally have and use a large amount of organic solvents, the processing time is long and operating procedure is many shortcoming.These methods are not only lost sample easily, are produced than mistake, and the use of toxic solvent can influence operator ' s health, contaminated environment.For this reason, the research of the sample-pretreating method that solvent-free or few solvent, the degree of accuracy are high, quick, easy has become one of forward position research topic of current analytical chemistry.
Solid phase micro-extraction technique (Solid Phase Micro Extraction; SPME) be the sample pre-treatments and the beneficiation technologies of a novelty of the rise nineties in 20th century; It developed research by the Pawliszyn professor's of Canadian Waterloo university research group in 1989 at first first, belonged to non-solvent selective extraction method.It almost can be used for the analysis of all kinds of volatility of sample such as gas, liquid, biology, solid or half volatile material.The maximum characteristics of SPME integrate sampling, extraction, enrichment, sample introduction exactly; Thereby it is easy and simple to handle; And do not need solvent; Rate of extraction is fast, running cost is low, free from environmental pollution, be convenient to realize automation and be easy to and high efficiency separation detection means couplings such as chromatogram, electrophoresis, therefore, in chemistry, medicine, food, environmental area and Pharmaceutical Analysis, obtained using widely.
(Stir bar sorptive extraction SBSE) is proposed in 1999 by people such as Erik Baltussen Stir Bar Sorptive Extraction, is a kind of novel sample pre-treatments technology that on the SPME basis, grows up.This technology is the same with SPME have simple, efficient, fast, favorable reproducibility, green advantage such as solvent-free; And absorption stirring rod self is accomplished stirring in extraction process; Avoided the competitive Adsorption of stirrer in Fiber SPME; And its extraction fixedly the volume ratio SPME of phase is big more than 50 times, so the enrichment multiple obviously improves very suitable trace analysis.Abroad should technology successfully be applied to the analysis of pollutant, drugs, medicine and residues of pesticides in environmental sample, the food, human endocrine interfering material, polycyclic aromatic hydrocarbon, benzene series thing and Polychlorinated biphenyls etc.
Germany Gerstel GnlbH company selects for use dimethyl silicone polymer (PDMS) as the extraction coating, has released commercial stirring rod (Twister Gerstel GnlbH).Twister is the PDMS silicone rubber tube by 0.5mm or 1mm, is enclosed within on the glass tube that seals magnetic core in to process.
Commercial SBSE device is a carrier with the glass bar, and material is frangible, and has only this a kind of fixedly phase coating of PDMS, and commercialization SBSE device price is higher, and the SBSE The Application of Technology has received bigger restriction.For this reason, be the work that an extremely has novelty and practical significance to the SBSE Study on Technology.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of polymer coating to stir extraction bar and preparation method thereof.
The technical scheme that the present invention adopts is:
A kind of polymer coating stirs extraction bar; Form by carrier and coating surfaces thereof; Said carrier is long 10-40mm; Diameter is the metal bar of 0.5-5mm, and said coating comprises polymeric layer, and said polymer is one or more of SDEB styrene diethylenebenzene copolymer, crosslinked polystyrene or cross-linked divinylbenzene.
The present invention also provides above-mentioned polymer coating to stir the preparation method of extraction bar, comprises following steps:
(a) choose long 10-40mm, diameter is the metal bar of 0.5-5mm, with carrene preliminary treatment is carried out on its surface;
(b) will pass through surface-coated one deck high-temperature-resistant epoxy resin of the pretreated metal bar of step (a) or organic siliconresin earlier; Pick one deck adsorbent at skin again; Coating or repeat to be coated with stain and pick and adjust coating layer thickness, said adsorbent is one or more in SDEB styrene diethylenebenzene copolymer, crosslinked polystyrene or the cross-linked divinylbenzene;
(c) cured of coating;
(d) with the stirring extraction bar after the face coat cured, place in the middle of the cable type extractor according, with carrene in 40-80 ℃ of backflow 20-120min, to remove impurity;
(e) must stir the extraction bar finished product.
Preferably, use with alr mode, said metal bar is that iron staff, nickel rod, cobalt are excellent, a kind of in stainless steel bar or the alloy bar; Use with head space or ultrasonic power, said metal bar is a kind of in stainless steel bar, copper rod, aluminium bar or the alloy bar.
Preferably; The synthetic method of said high-temperature-resistant epoxy resin is stirred to dissolving fully in epoxy resin, adding organic solvent; Add curing agent, auxiliary agent and filler more successively; Stirring is uniformly dispersed each component, places below 5 ℃ to store for future use, and wherein the ratio of quality and the number of copies of each material is: epoxy resin: curing agent: auxiliary agent: filler is 80-120: 10-80: 10-80: 10-60.
Preferably, said organic solvent is a kind of in xylenes, toluene, benzene or the acetone; Said curing agent is the agent of acid anhydrides type; Said auxiliary agent is a tertiary amine; Said filler is a kind of in flake asbestos, aluminium powder or the titanium white powder.
Preferably, said curing agent is a pyromellitic dianhydride.
The beneficial effect that the present invention has:
(1), the present invention is carrier with the metal bar, utilizes synthetic high-temperature-resistant epoxy resin or organic siliconresin that adsorbent is fixed on the metal bar surface, forms Heat stability is good, thereby anti-solvent washing coating material realize enrichment to trace organic substance.
(2), the present invention's barred body self in extraction process accomplish to stir, and avoided the competitive Adsorption of stirrer in Fiber SPME;
(3), the present invention replaces the conventional glass rod to make it have higher mechanical strength, sturdy and durable with metal bar;
(4), the present invention is attached to the form that stirs on the extraction bar with adsorbent, more help adsorbent the processing of fluid sample and static head space captured.
Description of drawings:
Fig. 1 is not for using the gas-chromatography baseline chart that stirs extraction bar;
The gas-chromatography baseline chart of Fig. 2 for using embodiment 1 to stir under the extraction bar desorption temperature;
Fig. 3 stirs the gas chromatogram of extraction bar extraction n-alkane (C10-C20) for utilizing embodiment 1.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further.
Fig. 1 is not for using the gas-chromatography baseline chart that stirs extraction bar, and Fig. 2 is for using the gas-chromatography baseline chart under the embodiment 1 stirring extraction bar desorption temperature, and relatively two figure can draw, and under desorption temperature, can cause the loss of coating hardly.
Embodiment 1
Choose long 25mm, diameter is the iron staff of 2mm, utilizes carrene that preliminary treatment is carried out on its surface; Take by weighing 100g epoxy resin, add xylenes and be stirred to dissolving fully, add 15g pyromellitic dianhydride, 15g tertiary amine and 20g flake asbestos more successively, stirring is uniformly dispersed each component, makes high-temperature-resistant epoxy resin, stores for future use in 5 ℃; At the surface-coated one deck high-temperature-resistant epoxy resin of the process pretreated iron staff of carrene; Pick one deck Chromosorb-102 at skin again, place then in the baking oven, will pass through the stirring extraction bar after the face coat cured at last in 180 ℃ of hot setting 60min; Place in the middle of the cable type extractor according; In 60 ℃ of backflow 40min, must stir the extraction bar finished product with carrene, the coating layer thickness of the stirring extraction bar that makes is 230 μ m.
Wherein epoxy resin is multifunctional glycidol type epoxy resin, and market is bought and obtained.Chromosorb-102 belongs to a kind of SDEB styrene diethylenebenzene copolymer, and market is bought and obtained.
Embodiment 2
Choose long 25mm, diameter is the nickel rod of 2mm, utilizes carrene that preliminary treatment is carried out on its surface; To pass through the surface-coated one deck organic siliconresin of the pretreated barred body of carrene; Pick one deck Chromosorb-101 at skin again, place then in the baking oven, will pass through the stirring extraction bar after the face coat cured at last in 180 ℃ of hot setting 60min; Place in the middle of the cable type extractor according; In 60 ℃ of backflow 40min, must stir the extraction bar finished product with carrene, the coating layer thickness of the stirring extraction bar that makes is 280 μ m.
Wherein Chromosorb-101 belongs to a kind of SDEB styrene diethylenebenzene copolymer, and market is bought and obtained.
Embodiment 3
Utilize the stirring extraction bar of making among the embodiment 1 that multiring aromatic hydrocarbon substance in the water is analyzed, take to stir the extraction mode, the solvent method desorb.
Embodiment 4
Utilize the stirring extraction bar of making among the embodiment 1 that meat flavor is fragrant component analysis, take the head space mode to extract, the desorb of thermal desorption method.
The above only is preferred embodiment of the present invention, is not technical scheme of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. a polymer coating stirs the preparation method of extraction bar, it is characterized in that: comprise following steps:
(a) choose long 10-40mm, diameter is the metal bar of 0.5-5mm, with carrene preliminary treatment is carried out on its surface;
(b) will pass through surface-coated one deck high-temperature-resistant epoxy resin of the pretreated metal bar of step (a) or organic siliconresin earlier; Pick one deck adsorbent at skin again; Coating or repeat to be coated with stain and pick and adjust coating layer thickness, said adsorbent is one or more in SDEB styrene diethylenebenzene copolymer, crosslinked polystyrene or the cross-linked divinylbenzene;
(c) cured of coating;
(d) with the stirring extraction bar after the face coat cured, place in the middle of the cable type extractor according, with carrene in 40-80 ℃ of backflow 20-120min, to remove impurity;
(e) must stir the extraction bar finished product.
2. method according to claim 1 is characterized in that: said metal bar is iron staff, a nickel rod, cobalt is excellent or alloy bar in a kind of.
3. method according to claim 1; It is characterized in that: the synthetic method of said high-temperature-resistant epoxy resin is stirred to dissolving fully in epoxy resin, adding organic solvent; Add curing agent, auxiliary agent and filler more successively; Stirring is uniformly dispersed each component, places below 5 ℃ to store for future use, and wherein the ratio of quality and the number of copies of each material is: epoxy resin: curing agent: auxiliary agent: filler is 80-120:10-80:10-80:10-60.
4. method according to claim 3 is characterized in that: said organic solvent is a kind of in xylenes, toluene, benzene or the acetone; Said curing agent is the agent of acid anhydrides type; Said auxiliary agent is a tertiary amine; Said filler is a kind of in flake asbestos, aluminium powder or the titanium white powder.
5. method according to claim 4 is characterized in that: said curing agent is a pyromellitic dianhydride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102971914A CN101972635B (en) | 2010-09-29 | 2010-09-29 | Preparation method of stir and extraction bar for polymer coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102971914A CN101972635B (en) | 2010-09-29 | 2010-09-29 | Preparation method of stir and extraction bar for polymer coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101972635A CN101972635A (en) | 2011-02-16 |
| CN101972635B true CN101972635B (en) | 2012-11-21 |
Family
ID=43572560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102971914A Expired - Fee Related CN101972635B (en) | 2010-09-29 | 2010-09-29 | Preparation method of stir and extraction bar for polymer coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101972635B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6905031B1 (en) * | 1999-09-13 | 2005-06-14 | The Regents Of The University Of California | Solid phase microextraction device using aerogel |
| CN101530679A (en) * | 2009-02-27 | 2009-09-16 | 南开大学 | Solid phase micro-extraction stainless steel fiber and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5575599A (en) * | 1998-09-21 | 2000-04-10 | University Of South Florida | Solid phase microextraction fiber structure and method of making |
-
2010
- 2010-09-29 CN CN2010102971914A patent/CN101972635B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6905031B1 (en) * | 1999-09-13 | 2005-06-14 | The Regents Of The University Of California | Solid phase microextraction device using aerogel |
| CN101530679A (en) * | 2009-02-27 | 2009-09-16 | 南开大学 | Solid phase micro-extraction stainless steel fiber and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101972635A (en) | 2011-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101992069B (en) | Preparation method of metal carrier stirring and extracting rod | |
| Godage et al. | A critical outlook on recent developments and applications of matrix compatible coatings for solid phase microextraction | |
| CN103157453B (en) | Solid phase microextraction coating of hydroxyl cucurbituril as well as preparation method and application thereof | |
| Li et al. | Preparation of C18 composite solid-phase microextraction fiber and its application to the determination of organochlorine pesticides in water samples | |
| Huang et al. | Hollow fiber-solid phase microextraction of phthalate esters from bottled water followed by flash evaporation gas chromatography-flame ionization detection | |
| Wen | Recent advances in solid-phase extraction techniques with nanomaterials | |
| CN108499549A (en) | Solid phase micro-extracting head and preparation method thereof for being enriched with perfluorochemical | |
| CN101992072A (en) | Aluminum oxide coating stirring extraction rod of metal carrier | |
| CN101972635B (en) | Preparation method of stir and extraction bar for polymer coating | |
| CN102847524A (en) | Solid phase microextraction extraction head for acrylamide detection and preparation method and application thereof | |
| CN102366721A (en) | Stirring and extracting bar for polydimethylsiloxane compounded carbon molecular sieve coating | |
| CN109174020B (en) | A kind of preparation method of polydopamine modified cellulose aerogel coating solid phase microextraction fiber | |
| CN102068966A (en) | Metal carrier stirring and extracting rod | |
| CN101992062B (en) | Method for preparing metal carrier stirring extraction rod | |
| CN101934224A (en) | Method for preparing polymer coating stir extraction bar | |
| CN101992070B (en) | Preparation method of metal carrier extracting rod | |
| CN101942762B (en) | Preparation method of metal carrier solid phase micro-extraction fiber | |
| CN102008944A (en) | Stirring and extracting bar for beta-cyclodextrin matrix | |
| CN102068963B (en) | Stainless steel solid phase micro extraction fiber | |
| CN102366718A (en) | Stir extraction bar with carbon nanofiber coating and preparation method thereof | |
| CN101992073A (en) | Metal carrier Tenax coating solid-phase microextraction fiber | |
| CN101992071A (en) | Metal carrier stirring extraction rod | |
| CN102114417A (en) | Preparation method of stainless steel solid-phase microextraction fiber | |
| CN102068962B (en) | Preparation method of metal carrier solid-phase micro-extraction fiber | |
| CN101947437B (en) | Solid-phase micro-extraction fiber with polymer coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20180929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |