CN203479595U - Carbon nanotube solid-phase treatment detection device - Google Patents
Carbon nanotube solid-phase treatment detection device Download PDFInfo
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- CN203479595U CN203479595U CN201320555448.0U CN201320555448U CN203479595U CN 203479595 U CN203479595 U CN 203479595U CN 201320555448 U CN201320555448 U CN 201320555448U CN 203479595 U CN203479595 U CN 203479595U
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Abstract
The utility model discloses a carbon nanotube solid-phase treatment detection device which comprises a treatment region and a detection region connected with the treatment region, wherein the treatment region is a spherical or ellipsoidal cavity and is used for performing solid-phase treatment on a sample to be detected to separate and purify substances to be detected in the sample to be detected; a feeding hole and a discharging hole are formed in the upper end and the lower end of the treatment region respectively; the feeding hole is used for filling the sample to be detected in the treatment region; the discharging hole is used for outputting the separated and purified substances to be detected to the detection region. As the treatment region is spherical or ellipsoidal, compared with a conventional solid-phase extraction column, a relatively large space is provided, the sample can be fully mixed with a filler, the area of contact between the sample and the filler is enlarged, the dead volume of solid-phase extraction is reduced, the adsorption rate of the filler on the substances to be detected in the sample is greatly increased, a relatively large sample can be contained, the repeated addition is avoided, and the operation is easy; in addition, the sample treatment and detection processes are combined, so that the detection efficiency is greatly improved.
Description
Technical field
The utility model relates to pick-up unit, relates in particular to a kind of carbon nano-tube solid phase and processes pick-up unit.
Background technology
Solid-Phase Extraction (Solid-Phase Extraction, SPE) be developed recently a kind of sample preprocessing technology of getting up, be mainly used in separation and the purification of sample, compare and can improve the recovery of analyte with traditional liquid-liquid extraction method, more effective that analyte is separated with interfering component, reduce sample preprocessing process, be applied in widely the fields such as medicine, food, environment, commodity inspection, chemical industry.
Carbon nano-tube has huge surface area and pore volume has extremely strong adsorptive power because of it, is widely used as filler in Solid-Phase Extraction.Yet, the solid-phase extraction column that business is used is at present generally 3mL or 6mL cylinder, carbon nano-tube is only generally 30-100mg as the consumption of filler, in extraction process, need a large amount of sample solutions and eluent etc., need to repeatedly add, because Solid-Phase Extraction column volume is little, to operation, bring very big inconvenience.In addition, current solid-phase extraction column only, for the pre-treatment of sample, can not combine with the detection in later stage, can not realize the fast and convenient screening of a step.
Summary of the invention
In view of this, provide a kind of carbon nano-tube solid phase that can simultaneously realize Sample pretreatment and late detection to process pick-up unit.
A kind of carbon nano-tube solid phase is processed pick-up unit, comprise treatment region and the detection zone being connected with treatment region, described treatment region is spherical or elliposoidal cavity, for carrying out the solid phase of sample to be detected, process with isolation of purified sample to be detected material to be detected, the upper/lower terminal of described treatment region is formed with respectively charging aperture and outlet, described charging aperture is for injecting sample to be detected to treatment region, and described outlet is for the material to be detected after isolation of purified to detection zone output.
Compared to prior art, the utility model carbon nano-tube solid phase is processed pick-up unit because its treatment region is spherical in shape or elliposoidal, compare traditional solid-phase extraction column larger space is provided, sample is able to fully mix with filler, the contact area of enlarged sample and filler, reduce Solid-Phase Extraction dead volume, significantly improve the adsorption rate of filler to the material to be detected of sample, and can hold the sample of more volume, without repeatedly repeatedly adding, thereby simple to operate, in addition, sample process and detection are combined as a whole, realizing sample one step detects, greatly improve detection efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model carbon nano-tube solid phase is processed pick-up unit.
Embodiment
Below with reference to the drawings and the specific embodiments, the utility model is elaborated.
The utility model carbon nano-tube solid phase is processed pick-up unit can realize Sample pretreatment and late detection simultaneously, can be widely used in the detection after decolouring, purified treatment and the processing of the fluent meterials such as water, wine, beverage, as processing and the detection of the ferric ion in red wine, water quality, copper ion, lead ion etc.
As shown in Figure 1, the appearance integral that the utility model carbon nano-tube solid phase is processed pick-up unit is lantern-shaped, comprises treatment region 10,30,Ji detection zone, enrichment region 50.
Described treatment region 10, for to the separation of sample material to be detected and purification, particularly, is removed the impurity in sample by Solid-Phase Extraction, isolation of purified material to be detected.In the present embodiment, described treatment region 10 is spherical or elliposoidal cavity, and volume is about 2 ~ 50mL.Conventionally, sample size to be detected accounts for below 50% of volume for the treatment of region 10.In described treatment region 10, be placed with filler 12, be generally carbon nano-tube material, preferably, described filler 12 is multi-walled carbon nano-tubes, and diameter is about 10 ~ 100nm, and length is 1 ~ 14 μ m.
The central authorities of the upper/lower terminal of described treatment region 10 form respectively entrance and outlet, and described entrance and exit are equipped with sieve plate 14,16, and described sieve plate 14,16 can be cellular quartz sand, filter paper, polystyrene or glass pricker dimension etc.Described entrance is used for to the interior injecting sample for the treatment of region 10, filler 12, sample solution, eluent etc., and sample fully mixes and is adsorbed with filler 12 in treatment region 10, after isolation of purified, by outlet, infiltrates into enrichment region 30.In the present embodiment, described entrance extends upward the pillared loading end 18 of shape, the diameter of described loading end 18 is 5 ~ 14mm, active volume is greater than treatment region 10, can connect portable piston, as syringe etc., strengthen the pressure in treatment region 10, improve sample in the processing speed of the interior separation for the treatment of region 10, purification.
Rear isolated material to be detected is processed for concentrated solid phase in described enrichment region 30, indirectly improves the content of thing to be detected, thereby can adjust the detection sensitivity of detection zone 50.In other embodiments, for the consideration of cost and test item actual demand, enrichment region 30 can be set.In the present embodiment, described enrichment region 30 to downward-extension, is tubular by the outlet one for the treatment of region 10, and diameter is about 2 ~ 12mm.In described enrichment region 30, be filled with drying agent 32, as silica gel, lime chloride etc., the bottom of enrichment region 30 is provided with sieve plate 34 equally, prevents that drying agent 32 is to external leakage.
Described detection zone 50, as reaction zone and the observation area of pattern detection, is connected in the bottom of enrichment region 30, forms the pick-up unit that an integral body is lantern-shaped.In the present embodiment, described detection zone 50 is tubular, and diameter is 2 ~ 12mm.50 inside, detection zone be provided with for detection of chemical reagent 52, as enzyme, fluorescence class material, or various types of nano materials, such material can be color change reactions with object to be detected or change in fluorescence is reacted, and can with the naked eye identify or realize identification by miniature instrument.The top of described detection zone 50 is formed with interface 54, for being connected in series with enrichment region 30, receives through concentrated material to be detected.Described interface 54, with sealing shroud, is avoided outside air and impurity to enter detection zone 50 and is caused interference.Described chemical reagent 52 equally can be by described interface 54 input detection zones 50.In described detection zone 50, be provided with sieve plate 56, described sieve plate 56 is positioned at 50 tops, detection zone, near interface 54, arranges, and further filters material to be detected or the chemical reagent 52 that is entered detection zone 50 by described interface 54.In other embodiments, can, according to the actual demand of test item, sieve plate 56 can be set.
When the utility model carbon nano-tube solid phase is processed pick-up unit use, pending sample is injected in treatment region 10 by described loading end 18, because described treatment region 10 is spherical in shape or elliposoidal, compare traditional solid-phase extraction column larger space is provided, sample is able to fully mix with filler 12, the contact area of enlarged sample and filler 12, give full play to the efficient adsorption ability of carbon nano-tube, strengthen joint efficiency, reduce Solid-Phase Extraction dead volume, significantly improve the adsorption rate of the material to be detected of 12 pairs of samples of filler.Add afterwards suitable volume wash away impurity and use eluent wash-out material to be detected, the object that reach separated, purifies material to be detected in sample.In said process, because described treatment region 10 has larger volume, can hold the sample of more volume, without repeatedly repeatedly adding, simple to operate.Material to be detected after isolation of purified enters detection zone 50 after moisture is removed in enrichment region 30, by interface 54, adds the content that corresponding chemical reagent 52 can be judged described material to be detected.The utility model carbon nano-tube solid phase is processed pick-up unit sample process and detection integrates, realizing sample one step detects, greatly improve detection efficiency, in addition, this the utility model carbon nano-tube solid phase is processed in pick-up unit, the volume of loading end 18 is greater than the volume for the treatment of region 10, can guarantee that piston movement strengthens the pressure in treatment region 10, effectively promotes whole sample process and testing process.
It should be noted that; the utility model is not limited to above-mentioned embodiment; according to creative spirit of the present utility model; those skilled in the art can also make other variation; the variation that these are done according to creative spirit of the present utility model, within all should being included in the utility model scope required for protection.
Claims (10)
1. a carbon nano-tube solid phase is processed pick-up unit, it is characterized in that, comprise treatment region and the detection zone being connected with treatment region, described treatment region is spherical or elliposoidal cavity, for carrying out the solid phase of sample to be detected, process with isolation of purified sample to be detected material to be detected, the upper/lower terminal of described treatment region is formed with respectively charging aperture and outlet, described charging aperture is for injecting sample to be detected to treatment region, and described outlet is for the material to be detected after isolation of purified to detection zone output.
2. carbon nano-tube solid phase as claimed in claim 1 is processed pick-up unit, it is characterized in that, described treatment region volume is 2 ~ 50ml approximately.
3. carbon nano-tube solid phase as claimed in claim 2 is processed pick-up unit, it is characterized in that, described entrance extends upward the pillared loading end of shape, and the volume of described loading end is greater than treatment region, for connecting portable piston to strengthen the pressure for the treatment of region.
4. carbon nano-tube solid phase as claimed in claim 3 is processed pick-up unit, it is characterized in that, the diameter of described loading end is 5 ~ 14mm.
5. carbon nano-tube solid phase as claimed in claim 1 is processed pick-up unit, it is characterized in that, also comprise the enrichment region of being extended by the downward one of outlet for the treatment of region, described enrichment region is for installing drying agent to remove the moisture of material to be detected, and described detection zone is connected in the bottom of enrichment region.
6. carbon nano-tube solid phase as claimed in claim 5 is processed pick-up unit, it is characterized in that, described enrichment region is tubular, and diameter is 2 ~ 12mm.
7. carbon nano-tube solid phase as claimed in claim 5 is processed pick-up unit, it is characterized in that, also comprises sieve plate is set, and described sieve plate is arranged at feeding mouth, the outlet for the treatment of region, bottom and the top, detection zone of enrichment region.
8. carbon nano-tube solid phase as claimed in claim 7 is processed pick-up unit, it is characterized in that, described sieve plate is cellular quartz sand, filter paper, polystyrene or glass fibre.
9. carbon nano-tube solid phase as claimed in claim 1 is processed pick-up unit, it is characterized in that, also comprise sealing shroud, the top of described detection zone is formed with interface for receiving the chemical reagent of material to be detected, and described sealing shroud is used for sealing described interface.
10. carbon nano-tube solid phase as claimed in claim 9 is processed pick-up unit, it is characterized in that, the diameter of described detection zone is 2 ~ 12mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320555448.0U CN203479595U (en) | 2013-09-06 | 2013-09-06 | Carbon nanotube solid-phase treatment detection device |
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| CN201320555448.0U CN203479595U (en) | 2013-09-06 | 2013-09-06 | Carbon nanotube solid-phase treatment detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168553A (en) * | 2016-09-22 | 2016-11-30 | 南华大学 | A kind of carbonate rock acid non-soluble substance extraction element and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168553A (en) * | 2016-09-22 | 2016-11-30 | 南华大学 | A kind of carbonate rock acid non-soluble substance extraction element and method |
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Granted publication date: 20140312 Termination date: 20170906 |