CN209356399U - Flame atomic absorption spectrophotometer aeration sample introduction regulating device - Google Patents
Flame atomic absorption spectrophotometer aeration sample introduction regulating device Download PDFInfo
- Publication number
- CN209356399U CN209356399U CN201920095600.9U CN201920095600U CN209356399U CN 209356399 U CN209356399 U CN 209356399U CN 201920095600 U CN201920095600 U CN 201920095600U CN 209356399 U CN209356399 U CN 209356399U
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- air
- type pipe
- sample introduction
- tube
- atomic absorption
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Abstract
The utility model discloses a kind of flame atomic absorption spectrophotometer aeration sample introduction regulating device, including T-type pipe, silica gel connecting tube, air conduit and air control shutter.One end of the transverse tube of the T-type pipe is connected in the atomizer entrance of flame atomic absorption spectrophotometer, and the other end couples with sample introduction perfusion tube；The vertical tube of T-type pipe then couples with air conduit；Each interface is engaged with silica gel connecting tube；The other end of air conduit is connected in air control shutter.The characteristics of this device, is: air by air control shutter, air conduit enters T-type pipe and test solution meets, successive enters atomizer entrance in the form of one section of air, one section of test solution, and then entrance subsequent measurements system.The size that air control shutter is opened is adjusted, the test solution amount into atomizer changes correspondingly, to realize the adjusting of instrument output signal.This apparatus structure is simple, low cost, it is easy to operate, adjust variation continuously smooth, stable output signal, reliable performance, can easily be installed, be dismantled on existing.
Description
Technical field
The utility model relates to a kind of flame atomic absorption spectrophotometer aeration sample introduction regulating devices, belong to testing laboratory's instrument
Device assembly.
Background technique
Flame atomic absorption spectrophotometer is common instrument in analysis test laboratory, increases or decreases it and measures signal (i.e.
Absorbance) be allowed to fall in the desired range of linearity be often done in test process adjustment operation.Believe when needing to reduce measurement
Number when, existing method of adjustment have 1. adjust combustion head angle to reduce absorption optical path length: this technology signal cut down effectively,
But signal stabilization is poor.2. coupling a current limiting tube in the end of pipette: this technology signal is cut down effectively, signal stabilization, but
Flow is adjusted discontinuously, and signal output is stepped, and it is more troublesome to replace current limiting tube.3. being atomized with one heart to pneumatic metal
Device, can also generally adjust the infusion capillary outlet position in atomizer to reduce condensation rate or sample volume: this technology can be grasped
The property made is poor, and output signal is suddenly big or suddenly small when adjustment or even gas backflow.4. diluting test solution: this technology signal is cut down effectively, signal
Stablize, be common method, but is cumbersome and easily bring pollution into.
Summary of the invention
The utility model partially can keep and develop above-mentioned advantage and can overcome the problems, such as it is above-mentioned exist, a kind of letter of structure is provided
Single, easy to use, the effective flame atomic absorption spectrophotometer aeration sample introduction regulating device of adjusting.
The technical solution of the utility model are as follows: the T-type pipe of a plastics or corrosion resistant metal material, pipe it is interior through for
0.8mm or so, outer diameter about 1.5mm, one end of transverse tube are connected in the atomizer entrance of flame atomic absorption spectrophotometer, the other end with
The connection of sample introduction perfusion tube；Vertical tube then couples with the flexible air duct of plastics or rubber material；Each interface is connect with silica gel connecting tube
It closes；The other end of air conduit is connected in air control shutter.
The utility model is installed between sample introduction perfusion tube and atomizer entrance, and the swabbing action of atomizer is formed by negative
Pressure is transmitted to sample introduction perfusion tube and air control shutter；Air enters T-type pipe and test solution phase by air control shutter, air conduit
It meets, successive enters atomizer in the form of one section of air, one section of test solution, and then enters subsequent measurements system.Adjust air throttle
The size that valve is opened, the air entrainment of test solution change correspondingly, i.e., change correspondingly into the test solution amount of atomizer, to realize that instrument is defeated
The adjustable variation of signal out.This variation is continuous and smooth；Due to not being related to the tune of combustion head angle during this
Whole, absorption light path is constant, so output signal is relatively stable.Generally speaking, the utility model structure is simple, low cost, operation
Convenient, adjusting variation continuously smooth, stable output signal, reliable performance, can easily be installed on existing, be torn open
It unloads.
Detailed description of the invention
Fig. 1 is the component and connection schematic diagram of the utility model.
Fig. 2 is the Mating graph of the utility model and other assemblies.
In Fig. 1, Fig. 2, T-type pipe (1), air control shutter (2), air conduit (3), silica gel connecting tube (4), sample introduction infusion
Manage (5), test solution container (6), atomizer (7), compressed air inlet (8).
Specific embodiment
Referring to Fig.1, the shape of Fig. 2, construction, implement according to the following steps.
1, T-type pipe 1: internal diameter about 0.8mm, the tee tube that outer diameter is 1.5mm or so, pipe range 12mm or so, with plastics or resistance to
Corrosion metal is made.Three nozzles of T-type pipe 1 are covered respectively with silica gel connecting tube 4, to couple with following component: T-type pipe 1
Vertical tube couples with air conduit 3, and the transverse tube of T-type pipe (1) couples sample introduction perfusion tube 5 and atomizer 7 respectively.Silica gel connecting tube 4
Internal diameter is 0.8mm or so, outer diameter is 3mm or so.
2, air control shutter 2: adjustable flow is 0mL/min~10mL/min, and outlet is connected in air conduit 3, Jin Erlian
It is connected to T-type pipe 1.Air conduit 3 is the plastic tube or rubber tube flexible of internal diameter about 0.8mm.
3, the use of aeration sample introduction regulating device: when flame atomic absorption spectrophotometer works, compressed air inlet 8 is applied with
Compressed air forms negative pressure at the nozzle of atomizer 7 and is transmitted to air control shutter 2 and sample introduction perfusion tube 5.Work as air throttle
Valve 2 is in close state, and is sucked into the only test solution of atomizer 7；When opening air control shutter 2, air and test solution compete into
Enter atomizer 2, the inlet of test solution is opposite to be reduced, and the output signal of host reduces.The open amount for adjusting air control shutter 2, can
Easily output signal is adjusted in the range of expectation.
Claims (1)
1. flame atomic absorption spectrophotometer aeration sample introduction regulating device, it is characterised in that: one end of air conduit (3) couples air
Throttle valve (2), and the other end is coupled by silica gel connecting tube (4) with the vertical tube of T-type pipe (1)；The transverse tube both ends of T-type pipe (1) point
Not Tong Guo silica gel connecting tube (4) couple sample introduction perfusion tube (5) and atomizer (7) entrance；The air conduit (3), T-type pipe
(1) and the internal diameter of sample introduction perfusion tube (5) is 0.8mm or so.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920095600.9U CN209356399U (en) | 2019-01-21 | 2019-01-21 | Flame atomic absorption spectrophotometer aeration sample introduction regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920095600.9U CN209356399U (en) | 2019-01-21 | 2019-01-21 | Flame atomic absorption spectrophotometer aeration sample introduction regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209356399U true CN209356399U (en) | 2019-09-06 |
Family
ID=67803229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920095600.9U Expired - Fee Related CN209356399U (en) | 2019-01-21 | 2019-01-21 | Flame atomic absorption spectrophotometer aeration sample introduction regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209356399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709054A (en) * | 2019-01-21 | 2019-05-03 | 广西科技大学鹿山学院 | Flame atomic absorption spectrophotometer aeration sample introduction regulating device |
-
2019
- 2019-01-21 CN CN201920095600.9U patent/CN209356399U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709054A (en) * | 2019-01-21 | 2019-05-03 | 广西科技大学鹿山学院 | Flame atomic absorption spectrophotometer aeration sample introduction regulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190906 Termination date: 20220121 |