CN107132202A - A kind of EISD - Google Patents
A kind of EISD Download PDFInfo
- Publication number
- CN107132202A CN107132202A CN201710380682.7A CN201710380682A CN107132202A CN 107132202 A CN107132202 A CN 107132202A CN 201710380682 A CN201710380682 A CN 201710380682A CN 107132202 A CN107132202 A CN 107132202A
- Authority
- CN
- China
- Prior art keywords
- sensing chamber
- main body
- cabinet
- drift tube
- section
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 32
- 239000003595 mist Substances 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- 230000005284 excitation Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000105 evaporative light scattering detection Methods 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of EISD of service life length, including cabinet, cabinet is provided with detection door, detect that door is provided with observation window, provided with the mist pipe being sequentially connected, drift tube, sensing chamber in cabinet, mist pipe is located at the observation window of the detection door in cabinet, drift tube include be connected in turn liquid input section, the body in the spring-like for being compressed to bottom, go out liquid section, liquid input section is parallel with going out liquid section, liquid input section is connected with mist pipe, go out liquid section with sensing chamber to be connected, heating tape is coated with body.
Description
Technical field
The present invention relates to a kind of EISD.
Background technology
EISD belongs to mass detector, volatility can be detected in theory any less than mobile phase
Material, but bottom is compared to the sample component detection sensitivity for having UV absorption, reappearance is poor (to dispatch from the factory and requires reappearance RSD<
6%), now it is usually used in detecting the material without UV absorption.
Existing EISD, including cabinet, as shown in figure 1, provided with the mist pipe being sequentially connected in cabinet
1', drift tube 2', sensing chamber.Drift tube 2' include be connected in turn liquid input section, in stretching open spring-like body,
Go out liquid section, inducer and the perpendicular arrangement of outlet section.Heating tape (not shown) is arranged with drift tube.Sensing chamber includes perpendicular
The sensing chamber main body 3' directly arranged, sensing chamber main body 3' lower ends are provided with the detectable substance import being connected with drift tube 2', sensing chamber
Main body 3' sides wall is provided with excitation source 4', sensing chamber side wall 3' on excitation source 4' opposites provided with light source absorption ligh trap 5',
Sensing chamber main body 3' is provided with detector lens barrel 6', and the detector lens barrel 6' other ends are connected with photoelectric sensor 7', detector mirror
Cylinder 6' includes the cylinder being arranged on sensing chamber main body 3' and is fixedly installed on cylinder away from sensing chamber's main body one end
Light bar；A light source is additionally provided with detector lens barrel 6' opposites absorb ligh trap 8' on the wall of sensing chamber main body 3' sides.
The detector of this structure, when detectable substance evaporation it is insufficient when, or evaporation failure when, all condensations it is molten
Agent flows back to mist pipe all along drift tube.Two problems are caused, corrosion of the solvent to drift tube, the opposing party is on the one hand increased
Face, adds the pressure of mist pipe discharge opeing.
Further, since the spring-like that drift tube body is opened in stretching, heating band winding uses single pattern, work very numerous
It is trivial, and temperature homogeneity is bad.
The light sent when detector is used from light source, can all pass through sample, scattering, partial dispersion are produced in the sample
Light can enter in photoelectric sensor (this is that user needs)；Through sample incident light, the detection on light source opposite can be radiated at
On locular wall, diffusing reflection is formed, partly diffusing to enter in photoelectric sensor, here it is veiling glare in sensing chamber.Detector
Although with two ligh traps, contribute to reduce it is irreflexive, because light source ligh trap opening is excessive, diffusing reflection level is also
It is very high, and causes equipment light path complicated, volume is big, cost is high.
The detector of this structure, because the detector lens barrel in detector can not be well adapted for various different samples,
Prevent baseline noise of the instrument when measuring some samples with measurement the range of linearity from maintain one it is relatively good in the state of.
The content of the invention
The technical problems to be solved by the invention are：A kind of Evaporative light scattering detector of drift tube service life length is provided
Device.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of EISD, including
Cabinet, cabinet is provided with observation window, cabinet provided with the mist pipe being sequentially connected, drift tube, inspection provided with detection door, detection door
Survey room, mist pipe be located at cabinet in detection door observation window at, drift tube include be connected in turn liquid input section, in pressure
It is reduced to the body of the spring-like at bottom, goes out liquid section, liquid input section is parallel with going out liquid section, and liquid input section is connected with mist pipe, goes out liquid Duan Yujian
Survey room to be connected, heating tape is coated with body, sensing chamber's main body axis is located in horizontality, sensing chamber's main body wall
Provided with leakage mouth, leakage joint is provided with leakage mouth, leakage mouth is located in sensing chamber's main body wall at the low spot of vertical direction.
As a kind of preferred scheme, the sensing chamber includes sensing chamber's main body, sensing chamber's main body axial end portion be provided with
The detectable substance import of drift tube connection, sensing chamber's main body wall is provided with excitation source, sensing chamber's side wall in excitation source pair
Face absorbs ligh trap provided with light source, and light source absorbs ligh trap and is provided with end plate close to sensing chamber one end, and end plate is less than light source provided with diameter
/ 3rd sucking of absorbing trap internal diameter, sensing chamber's main body is provided with detector lens barrel, the connection of the detector lens barrel other end
There is photoelectric sensor, detector lens barrel includes the cylinder being arranged in sensing chamber's main body and is removably disposed on cylinder
Away from the light bar on sensing chamber's main body one end；
As a kind of preferred scheme, cooling fan is provided with drift bottom of the tube in the cabinet.
The beneficial effects of the invention are as follows：The liquid input section that includes being connected in turn due to drift tube, in being compressed to bottom
The body of spring-like, go out liquid section, liquid input section and go out that liquid section is parallel, liquid input section is connected with mist pipe, is gone out liquid and section is connected with sensing chamber
Connect, heating tape is coated with body, not only significantly reduce in volume so that detector internal structure is more reasonable, compact.And
And the drift tube of this structure causes sensing chamber's main body to be provided with leakage mouth, leakage with horizontal positioned, sensing chamber's main body wall
Mouth is located in sensing chamber's main body wall at the low spot of vertical direction, and the solvent of condensation is largely discharged by leakage mouth, due to inspection
Survey room main body inner wall and be all provided with protective coating, will not be corroded；The solvent of condensation only has small part to pass through drift tube stream
Mist pipe is returned, the corrosion risk of drift tube is reduced, improves the security of instrument.
And heating band winding can use side-by-side pattern, several layers of drift tubes are tightly pressed against together, to improve in drift tube
Temperature homogeneity, further reduce solvent condensation；
Mist pipe is located at the observation window of the detection door in cabinet, is easy to user to observe atomizing effect.
Due to absorbing ligh trap provided with light source on excitation source opposite on sensing chamber's side wall, light source absorbs ligh trap close to sensing chamber
One end is provided with end plate, and end plate is less than 1/3rd sucking of light source absorbing trap internal diameter provided with diameter, will can so detected
Indoor light source light first time diffusing reflection drops to very low level, that is, the reduction of system veiling glare is a lot so that testing result is more
To be accurate；Decrease manufacturing cost simultaneously.
Because detector lens barrel includes the cylinder that is arranged in sensing chamber's main body and is removably disposed on cylinder remote
From the light bar on sensing chamber's main body one end, light bar is replaceable to be allowed to be selected with concentration according to the species of user's actual sample
Suitable light bar, make the baseline noise of instrument and the measurement range of linearity can always maintain one it is relatively good in the state of.
Due to being provided with cooling fan in drift bottom of the tube in cabinet, inside the fabulous detector of heat insulation effect so that drift
Shifting pipe cooling is very fast, so that this detector is used for energy fast cooling after the high material detection of atomization temperature, to adapt to atomization temperature
The detection of the low material of degree, substantially reduces the stand-by period.
Brief description of the drawings
Fig. 1 is mist pipe, drift tube, the stereochemical structure signal of sensing chamber part in existing detector described in background technology
Figure.
Fig. 2 is the dimensional structure diagram (to express clearly, removing part) of the present invention.
Fig. 3 is the dimensional structure diagram of sensing chamber in the present invention.
Fig. 4 is the main structure diagram of sensing chamber in the present invention.
Fig. 2 is into Fig. 4：1. cabinet, 2. detection doors, 21. observation windows, 3. mist pipes, 4. drift tubes, 5. sensing chamber, 51. inspections
Room main body is surveyed, 511. leakage joints, 52. excitation sources, 53. light sources absorb ligh trap, 54. end plates, 55. detector lens barrels, 551.
Cylinder, 552. light bars, 56. photoelectric sensors, 6. cooling fans.
Embodiment
Below in conjunction with the accompanying drawings, specific embodiments of the present invention are described in detail.
As in Figure 2-4, a kind of EISD, including cabinet 1, cabinet 1 detect door 2 provided with detection door 2
It is provided with observation window 21.Provided with the mist pipe 3 being sequentially connected, drift tube 4, sensing chamber 5 in cabinet 1, mist pipe 3 is located at cabinet 1
In detection door observation window 21 at.Drift tube 4 include be connected in turn liquid input section, in the spring-like for being compressed to bottom
Body, go out liquid section, liquid input section and go out that liquid section is parallel, liquid input section is connected with mist pipe 3, is gone out liquid and section is connected with sensing chamber 5, body
On be coated with heating tape (not shown).In cabinet 1 cooling fan 6 is provided with the bottom of drift tube 4.
Sensing chamber includes sensing chamber's main body 51, and the axis of sensing chamber's main body 51 is located at horizontality, and sensing chamber's main body 51 is axially
End is provided with the detectable substance import being connected with drift tube 4.The side wall of sensing chamber's main body 51 is provided with leakage mouth, leakage mouth and is provided with
Leakage joint 511, leakage mouth is located on the side wall of sensing chamber's main body 51 at the low spot of vertical direction.
The side wall of sensing chamber's main body 51 is provided with excitation source 52, the side wall of sensing chamber 5 is provided with light on the opposite of excitation source 52
Source absorbs ligh trap 53, and light source absorbs ligh trap 53 and is provided with end plate 54 close to the one end of sensing chamber 5, and end plate 54 is less than light source provided with diameter
/ 3rd sucking of absorbing trap internal diameter, sensing chamber's main body 51 is provided with detector lens barrel 55, and detector lens barrel 55 is another
End is connected with photoelectric sensor 56, and detector lens barrel 55 includes the cylinder 551 being arranged in sensing chamber's main body 51 and detachable
Ground is arranged on cylinder 551 away from the light bar 552 on the one end of sensing chamber's main body 51.
The principle and its effect of the above embodiments only illustrative the invention, and the implementation that part is used
Example, not for the limitation present invention；It should be pointed out that for the person of ordinary skill of the art, not departing from wound of the present invention
On the premise of making design, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (3)
1. a kind of EISD, including cabinet, cabinet is provided with detection door, it is characterised in that：On the detection door
Provided with observation window, provided with the mist pipe being sequentially connected, drift tube, sensing chamber in cabinet, the detection door that mist pipe is located in cabinet
Observation window at, drift tube include be connected in turn liquid input section, the body in the spring-like for being compressed to bottom, go out liquid section,
Liquid input section is parallel with going out liquid section, and liquid input section is connected with mist pipe, goes out liquid section and is connected with sensing chamber, heating is coated with body
Band, sensing chamber's main body axis is located at horizontality, and sensing chamber's main body wall, which is provided with leakage mouth, leakage mouth, is provided with leakage
Joint, leakage mouth is located in sensing chamber's main body wall at the low spot of vertical direction.
2. a kind of EISD as claimed in claim 1, it is characterised in that：The sensing chamber includes sensing chamber master
Body, sensing chamber's main body axial end portion is provided with the detectable substance import being connected with drift tube, and sensing chamber's main body wall is provided with exciting light
Ligh trap is absorbed provided with light source on excitation source opposite on source, sensing chamber's side wall, light source absorbs ligh trap and is provided with close to sensing chamber one end
End plate, end plate is less than 1/3rd sucking of light source absorbing trap internal diameter provided with diameter, and sensing chamber's main body is provided with detection
Device lens barrel, the detector lens barrel other end is connected with photoelectric sensor, and detector lens barrel includes the cylinder being arranged in sensing chamber's main body
Body and it is removably disposed on cylinder away from the light bar on sensing chamber's main body one end.
3. a kind of EISD as claimed in claim 2, it is characterised in that：In drift bottom of the tube in the cabinet
Provided with cooling fan.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611185818 | 2016-12-20 | ||
| CN2016111858180 | 2016-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107132202A true CN107132202A (en) | 2017-09-05 |
| CN107132202B CN107132202B (en) | 2023-10-27 |
Family
ID=59733339
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710380682.7A Active CN107132202B (en) | 2016-12-20 | 2017-05-25 | Evaporation light scattering detector |
| CN201720593305.7U Active CN206818610U (en) | 2016-12-20 | 2017-05-25 | A kind of EISD |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720593305.7U Active CN206818610U (en) | 2016-12-20 | 2017-05-25 | A kind of EISD |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107132202B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445122A (en) * | 2018-01-25 | 2018-08-24 | 无锡赛那尔仪器设备制造有限公司 | A kind of evaporative light scattering detector |
| CN113390829A (en) * | 2021-06-25 | 2021-09-14 | 苏州赛德福科学仪器有限公司 | Detection chamber of evaporative light scattering detector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132202B (en) * | 2016-12-20 | 2023-10-27 | 苏州赛德福科学仪器有限公司 | Evaporation light scattering detector |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6229605B1 (en) * | 2000-03-10 | 2001-05-08 | Alltech Associates, Inc. | Evaporative light scattering device |
| CN1932495A (en) * | 2006-09-28 | 2007-03-21 | 南京财经大学 | Edible vegetable oil and fat smoke point automatic analyzer |
| CN202171678U (en) * | 2011-08-20 | 2012-03-21 | 福建福光数码科技有限公司 | High-resolution zoom lens for intelligent traffic system |
| CN203551534U (en) * | 2013-09-27 | 2014-04-16 | 上海通微分析技术有限公司 | Microfluidic evaporative light scattering detection device |
| CN203929635U (en) * | 2014-02-23 | 2014-11-05 | 上海浩杰生物科技有限公司 | A kind of evaporative light-scattering detector |
| CN104297212A (en) * | 2014-03-06 | 2015-01-21 | 上海浩杰生物科技有限公司 | Photoelectric scattering detector for beverage |
| CN204696506U (en) * | 2015-03-31 | 2015-10-07 | 丰顺县梅丰水电发展有限公司 | A kind of dust-proof damp proof electric power cabinet |
| CN204832019U (en) * | 2015-08-28 | 2015-12-02 | 山东嘉源检测技术有限公司 | Novel formation of image of quality of water environment device |
| CN205749852U (en) * | 2016-05-10 | 2016-11-30 | 倍科质量技术服务（东莞）有限公司 | Quasiconductor cooling aging equipment for the large-power LED light bead of LM-80 standard |
| CN206818610U (en) * | 2016-12-20 | 2017-12-29 | 苏州赛德福科学仪器有限公司 | A kind of EISD |
-
2017
- 2017-05-25 CN CN201710380682.7A patent/CN107132202B/en active Active
- 2017-05-25 CN CN201720593305.7U patent/CN206818610U/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6229605B1 (en) * | 2000-03-10 | 2001-05-08 | Alltech Associates, Inc. | Evaporative light scattering device |
| CN1932495A (en) * | 2006-09-28 | 2007-03-21 | 南京财经大学 | Edible vegetable oil and fat smoke point automatic analyzer |
| CN202171678U (en) * | 2011-08-20 | 2012-03-21 | 福建福光数码科技有限公司 | High-resolution zoom lens for intelligent traffic system |
| CN203551534U (en) * | 2013-09-27 | 2014-04-16 | 上海通微分析技术有限公司 | Microfluidic evaporative light scattering detection device |
| CN203929635U (en) * | 2014-02-23 | 2014-11-05 | 上海浩杰生物科技有限公司 | A kind of evaporative light-scattering detector |
| CN104297212A (en) * | 2014-03-06 | 2015-01-21 | 上海浩杰生物科技有限公司 | Photoelectric scattering detector for beverage |
| CN204696506U (en) * | 2015-03-31 | 2015-10-07 | 丰顺县梅丰水电发展有限公司 | A kind of dust-proof damp proof electric power cabinet |
| CN204832019U (en) * | 2015-08-28 | 2015-12-02 | 山东嘉源检测技术有限公司 | Novel formation of image of quality of water environment device |
| CN205749852U (en) * | 2016-05-10 | 2016-11-30 | 倍科质量技术服务（东莞）有限公司 | Quasiconductor cooling aging equipment for the large-power LED light bead of LM-80 standard |
| CN206818610U (en) * | 2016-12-20 | 2017-12-29 | 苏州赛德福科学仪器有限公司 | A kind of EISD |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108445122A (en) * | 2018-01-25 | 2018-08-24 | 无锡赛那尔仪器设备制造有限公司 | A kind of evaporative light scattering detector |
| CN108445122B (en) * | 2018-01-25 | 2023-10-03 | 无锡赛那尔仪器设备制造有限公司 | Evaporative light scattering detection device |
| CN113390829A (en) * | 2021-06-25 | 2021-09-14 | 苏州赛德福科学仪器有限公司 | Detection chamber of evaporative light scattering detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107132202B (en) | 2023-10-27 |
| CN206818610U (en) | 2017-12-29 |
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