CN2655222Y - Nitrogen blowing apparatus - Google Patents
Nitrogen blowing apparatus Download PDFInfo
- Publication number
- CN2655222Y CN2655222Y CN 200320131147 CN200320131147U CN2655222Y CN 2655222 Y CN2655222 Y CN 2655222Y CN 200320131147 CN200320131147 CN 200320131147 CN 200320131147 U CN200320131147 U CN 200320131147U CN 2655222 Y CN2655222 Y CN 2655222Y
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- sample
- solvent
- fixed mount
- water bath
- gas
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Abstract
The utility model relates to a test device for sample concentration, comprising a gas mixing system, a sample location bracket and a heating device. The gas mixing system comprises a gas source, a needle valve and a gas blowing pipe, the heating device comprises a temperature controlling device and a water shower container, one side of which is provided with a transparent view window, the sample location bracket is provided with a sample fixed bracket and a sample fixed bracket bottom plate positioned on the lower end of the sample location bracket, which is made of white material. Because the transparent view window is positioned on one side of the water shower container, the operator sees the sample volume variation inside the sample tube clearly, additionally, the white sample fixed bracket bottom plate increases the contrast, when the sample solvent is closed to be dry, the operator can see the micro-liter solvent in the sample tube, the operation that the analyzing object is not gone away while the solvent is dry is realized.
Description
(1) technical field
The utility model relates to a kind of experimental provision that is used for sample concentration.
(2) background technology
Nitrogen evaporator is mainly used in concentrating of the extract sample that contains organic solvent, but a plurality of samples of single treatment.Usually, Nitrogen evaporator is made of gas distributing system, sample locating rack, heating arrangement etc.Nitrogen or air are blown into the sample hose that is fixed on the sample locating rack and places heating arrangement by gas blow pipe after adjusting flow through gas distributing system, the organic solvent in the interior sample of sample hose is volatilized rapidly, thereby realize concentrating sample in the sample hose.
At present, the heating arrangement of known Nitrogen evaporator mainly contains two types: heating of electric heating piece and water-bath heating.When adopting the heating of electric heating piece, sample places electric heating piece inside, is difficult to the volume change from the visual observation to the sample.When adopting the water-bath heating,, can't observe the volume change of sample equally owing to used stainless steel or other opaque material to make the cell body of water bath.Therefore may cause sample concentration excessive, even be dried, cause the loss of analyzed compound, cause analytical error.In addition, when analyzing some sample, solvent need be dried up as far as possible, but analyte can not be blown away again, this just requires operating personnel when the volume of residual solvent is very little, the situation of change of observation sample volume clearly still, when sample dries up just, stop immediately blowing, thereby the assurance analyte is not blown away and stays container bottom.Present Nitrogen evaporator is difficult to satisfy such requirement.
(3) summary of the invention
The purpose of this utility model is to provide a kind of operating personnel of making clearly to observe the Nitrogen evaporator of the volume change of treated sample.
Structure of the present utility model is similar to existing Nitrogen evaporator, comprise gas distributing system, sample locating rack and heating arrangement, gas distributing system comprises source of the gas, needle-valve and gas blow pipe, heating arrangement comprises attemperating unit and water bath, a transparent windows is established in one side of water bath, and row's high brightness LED is installed above view window; The sample locating rack is provided with the sample fixed mount, establishes sample fixed mount base plate in the lower end of sample fixed mount, and gas distributing system is fixed on the water bath.
Sample fixed mount base plate preferably adopts white material to make.Gas distributing system preferably is fixed on the water bath by fixed screw.
The utility model is owing to establish a transparent windows in a side of water bath, make the operator can be clear that the variation of sample volume in the sample hose, and after row's high brightness LED is installed above the view window, even decreased light or night environment also can realize aforesaid operations.In addition, because the sample fixed mount base plate of white has increased contrast, when the solvent in the sample when drying up, even the operator can see the solvent of micro updating in the sample hose, thereby realize the solvent in the sample is dried up fully and do not blow away the operation of analyte.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model.
(5) embodiment
As shown in Figure 1, the utility model comprises gas distributing system, sample locating rack and heating arrangement, gas distributing system comprises source of the gas 9, needle-valve 5 and gas blow pipe 4, heating arrangement comprises attemperating unit 1 and water bath 10, a transparent windows 12 is established in one side of water bath 10, one row's high brightness LED 13 is installed above view window simultaneously, is established white sample fixed mount base plate 11 in the lower end of sample fixed mount 2.Source of the gas (nitrogen or air) enters each needle-valve 5 by flexible pipe 7 after adjusting flow, after adjusting flow once more, needle-valve enters in each gas blow pipe 4, be blown into the sample hose 3 that is fixed on the sample fixed mount 2 and places water bath 10 by gas blow pipe, the organic solvent in the sample hose 3 interior samples is volatilized rapidly.The operator is by the variation of sample volume in the transparent windows 12 observation sample pipes, white sample fixed mount base plate 11 has increased contrast, make the operator can when sample dries up just, stop immediately blowing, thereby the assurance analyte is not blown away and stay container bottom.After row's high brightness LED 13 is installed above the view window, though decreased light or night environment also can realize aforesaid operations.The position is adjusted screw 6 and is used for adjusting distance between gas blow pipe 4 and the sample hose 3, and fixed screw 8 is fixed in gas distributing system on the water bath.
Claims (4)
1, Nitrogen evaporator, comprise gas distributing system, sample locating rack and heating arrangement, heating arrangement comprises attemperating unit and water bath, and the sample locating rack is provided with the sample fixed mount, a transparent windows is established in a side that it is characterized in that water bath, and sample fixed mount base plate is established in the lower end of sample fixed mount.
2, Nitrogen evaporator as claimed in claim 1 is characterized in that sample fixed mount base plate adopts white material to make.
3, Nitrogen evaporator as claimed in claim 1 is characterized in that installing row's light emitting diode above view window.
4, Nitrogen evaporator as claimed in claim 1 is characterized in that gas distributing system is fixed on the water bath by fixed screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131147 CN2655222Y (en) | 2003-12-02 | 2003-12-02 | Nitrogen blowing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320131147 CN2655222Y (en) | 2003-12-02 | 2003-12-02 | Nitrogen blowing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2655222Y true CN2655222Y (en) | 2004-11-10 |
Family
ID=34350156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320131147 Expired - Fee Related CN2655222Y (en) | 2003-12-02 | 2003-12-02 | Nitrogen blowing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2655222Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101554602B (en) * | 2009-04-28 | 2010-09-29 | 储晓刚 | Full automatic liquid level tracing gas purging concentrator |
| CN102692343A (en) * | 2012-06-21 | 2012-09-26 | 苏州国环环境检测有限公司 | Sample holding box suitable for nitrogen-blowing concentration |
| CN102861458A (en) * | 2012-10-12 | 2013-01-09 | 上海爱吉伦光谱仪器有限公司 | Rapid solvent extraction and solid phase extraction combining concentrator |
| CN103175727A (en) * | 2013-02-07 | 2013-06-26 | 天津奥顺达科技有限公司 | Sample preparation instrument |
| WO2015074181A1 (en) * | 2013-11-19 | 2015-05-28 | 成都市产品质量监督检验院 | Nitrogen blowing apparatus and wet dissolving method using nitrogen blowing apparatus |
| CN108020456A (en) * | 2018-01-24 | 2018-05-11 | 农业部渔业环境及水产品质量监督检验测试中心（天津）（天津市质量监督检验站第二十三站、天津市渔业环境及水产品质量监督检验测试中心） | Nitrogen evaporator and nitrogen evaporator test tube mounting base |
| CN112924266A (en) * | 2020-12-25 | 2021-06-08 | 湖北鼎泰高科有限公司 | Column socket of solid-phase extraction nitrogen blowing concentrator and nitrogen blowing assembly |
-
2003
- 2003-12-02 CN CN 200320131147 patent/CN2655222Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101554602B (en) * | 2009-04-28 | 2010-09-29 | 储晓刚 | Full automatic liquid level tracing gas purging concentrator |
| CN102692343A (en) * | 2012-06-21 | 2012-09-26 | 苏州国环环境检测有限公司 | Sample holding box suitable for nitrogen-blowing concentration |
| CN102861458A (en) * | 2012-10-12 | 2013-01-09 | 上海爱吉伦光谱仪器有限公司 | Rapid solvent extraction and solid phase extraction combining concentrator |
| CN102861458B (en) * | 2012-10-12 | 2015-12-09 | 上海爱吉伦光谱仪器有限公司 | A kind of Accelerate solvent extraction SPE coupling enrichment facility |
| CN103175727A (en) * | 2013-02-07 | 2013-06-26 | 天津奥顺达科技有限公司 | Sample preparation instrument |
| CN103175727B (en) * | 2013-02-07 | 2015-10-14 | 天津奥顺达科技有限公司 | A kind of sample preparation instrument |
| WO2015074181A1 (en) * | 2013-11-19 | 2015-05-28 | 成都市产品质量监督检验院 | Nitrogen blowing apparatus and wet dissolving method using nitrogen blowing apparatus |
| CN108020456A (en) * | 2018-01-24 | 2018-05-11 | 农业部渔业环境及水产品质量监督检验测试中心（天津）（天津市质量监督检验站第二十三站、天津市渔业环境及水产品质量监督检验测试中心） | Nitrogen evaporator and nitrogen evaporator test tube mounting base |
| CN108020456B (en) * | 2018-01-24 | 2024-02-13 | 农业部渔业环境及水产品质量监督检验测试中心（天津）（天津市质量监督检验站第二十三站、天津市渔业环境及水产品质量监督检验测试中心） | Nitrogen blows appearance and nitrogen blows appearance test tube mount pad |
| CN112924266A (en) * | 2020-12-25 | 2021-06-08 | 湖北鼎泰高科有限公司 | Column socket of solid-phase extraction nitrogen blowing concentrator and nitrogen blowing assembly |
| CN112924266B (en) * | 2020-12-25 | 2024-01-19 | 湖北鼎泰高科有限公司 | Column insert and nitrogen blowing assembly of solid phase extraction nitrogen blowing concentrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |