CN2826408Y - Atom absorption device capable of multielement simultaneous determination - Google Patents
Atom absorption device capable of multielement simultaneous determination Download PDFInfo
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- CN2826408Y CN2826408Y CN 200520110579 CN200520110579U CN2826408Y CN 2826408 Y CN2826408 Y CN 2826408Y CN 200520110579 CN200520110579 CN 200520110579 CN 200520110579 U CN200520110579 U CN 200520110579U CN 2826408 Y CN2826408 Y CN 2826408Y
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- atomizer
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- catoptron
- light source
- recombination radiation
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Abstract
The utility model relates to an atom absorbing device capable of multi-element simultaneous determination, which comprises a light source system, a light path system, an atomizer, a beam splitting system, a light beam marshalling system, a photoelectric converter system and a computer. The utility model has the method that complex radiating light beams containing the characteristic wavelength of elements to be measured are alternately emitted by multiple paths; the light beams pass through the atomizer in parallel to the atomizer or in an included angle alpha less than 90DEG with a parallel direction and then shoot into a raster in an incident included angle beta less than 30DEG with the normal direction of the raster, the multi-path light beams containing the characteristic wavelength of a single element are carried out with light splitting through the raster and then are marshalled and combined again through the light beam marshalling system, each set of light beam combination uses one same light path to alternately enter a multi-path light detector system to be detected, and the concentration value of each element is calculated through a data processing and a computer systems. The utility model carries out multi-element simultaneous measurement for the multi-path single and complex radiating light beams through the atomizer, and the light beams are alternately emitted so that the utility model has no the problem of spectral interference.
Description
Affiliated technical field
The utility model relates to a kind of atomic absorption unit of multielement simultaneous determination.Belong to the determining instrument field.
Background technology
The atomic absorption analysis principle is the resonance absorption of ground state free atom to radiation energy.Measure the degree of absorption of free ground state atom pair radiation energy, just can infer the concentration of contained element in the sample.The multielement simultaneous determination technology is that the ground state free atom carries out resonance absorption to a plurality of radiation energies with different characteristic wavelength simultaneously, measure the degree of absorption of free ground state atom pair different characteristic wavelength light radiation energy, infer the contained concentration of different elements in the sample with this.
Chinese patent (01219460.3) has been narrated a kind of multiple tracks Atomic Absorption Spectrometer, multiple tracks monochromator, multiple tracks information detector, singlechip controller and microcomputer etc. by two lamp brackets, copper zinc calcium element lamp, magnesium iron two element lamps, lens, flame absorption cell, the atomizer that has sample cell, band light hole constitute, and it mainly is provided in a side of copper zinc calcium element lamp and the positional alignment that is located at magnesium iron two element lamps on another lamp bracket on the lamp bracket and is angle less than 90 °.
Chinese patent (03209467.1) has been narrated a kind of atomic absorption spectrophotometer (AAS), and it includes lamp bracket, places element lamp, light path system, atomization system, beam splitting system and processing of circuit system on the lamp bracket, and the processing of circuit system is connected with beam splitting system; The atomization system includes atomizer and flame absorption cell, beam splitting system includes grating and photomultiplier, the processing of circuit system includes single-chip microcomputer and display, light path system includes two concave mirrors and a level crossing, wherein, the corresponding setting of first concave mirror with element lamp, its center line and element lamp center line have an angle, level crossing places on the reflected light path of first concave mirror, second concave mirror places on the reflected light path of level crossing, the atomization system places the light-ray condensing point below of flat mirror reflects first concave mirror, and beam splitting system places on the reflected light path of second concave mirror.
If measure at the same time on the basis of copper, zinc, calcium, magnesium, five kinds of elements of iron, when increasing the number of tested element and the distance between the elemental characteristic spectral line less than the spectral bandwidth of instrument, above-mentioned prior art can cause the absorbance of measurement result to reduce owing to there is the defective that can't overcome the spectrum interference.
Summary of the invention
In order to overcome the technical deficiency to measure simultaneously of prior art more than the number of the multiple element of copper, zinc, calcium, magnesium, five kinds of elements of iron, a kind of atomic absorption unit of multielement simultaneous determination is provided, be to measure more multielement simultaneously, spectrum disturbs less, the atom absorption method and the device of accuracy of measurement height, simple in structure, multielement simultaneous determination that reliability is high.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of atomic absorption unit of multielement simultaneous determination is made up of light-source system, light path system, atomizer, beam splitting system, light beam marshalling system, photo-translating system, computer system, and wherein photo-translating system is electrically connected with computer system.Above-mentioned light-source system by 2 or 3 or 4 or 5 or 6 or 7 or 8 hollow cathode lamps and by 1 or and 2 or and 3 or and 4 or and 5 or and 6 or and 7 or and 8 composite hollow cathode modulations form, alternately send the homogeneous beam and the composite light beam that contain one or more elemental characteristic wavelength to be measured.Above-mentioned light path system is made up of focus lamp, semi-transparent semi-reflecting lens, catoptron and slit etc., and be divided into the two ends that two parts are installed in atomizer respectively, be installed in part between light-source system and the atomizer and satisfy and to make light beam that light-source system sends to be parallel to atomizer or to be the requirement of passing less than 90 ° angle with parallel direction.Being installed in part between atomizer and the beam splitting system satisfies its light beam that passes atomizer and is the requirement of injecting grating less than 30 ° incident angle with the normal direction with grating.Above-mentioned beam splitting system is made up of grating, inject containing of grating multiple elemental characteristic wavelength light beam to be measured behind the atomizer and resolve into the homogeneous beam that multichannel only contains a kind of elemental characteristic wavelength to be measured passing, inject containing of grating multiple elemental characteristic wavelength light beam to be measured behind the atomizer and resolve into the homogeneous beam that multichannel only contains a kind of elemental characteristic wavelength to be measured passing.Above-mentioned light beam marshalling system is by slit, the facetted mirrors at strap clamp angle and catoptron are formed, the homogeneous beam that will the multichannel behind grating beam splitting only contains a kind of elemental characteristic wavelength to be measured is organized into groups, make it satisfy the requirement that on each photoelectric detector, alternately detects the multichannel light beam, wherein the angle of the facetted mirrors at strap clamp angle is less than 170 °, the installation site of the facetted mirrors at strap clamp angle is satisfied the position that light beam sends and is dropped in the angle The corresponding area, above-mentioned photo-translating system is made up of 1 or 2 or 3 or 4 s' photomultiplier, and each photomultiplier receives a branch of or alternately receives a branch of above light beam and detects.
Aforementioned calculation machine system is made up of special-purpose single-chip microcomputer and multi-purpose computer.
Compared with prior art, the utility model has following advantage:
1. in some specific applications, as mensuration to element in the human body blood, the linear measurement range of the concentration of each element and atomic absorption analysis device is inconsistent in sample, and in the time of can not adopting the method that sample is repeatedly diluted to solve owing to sample size is very limited, just can utilize principle of the present utility model, when the design of light-source system that carries out device and light path system at the element of variable concentrations scope, by different recombination radiation light beam I is set
1 ~ nWith the angle α of atomizer, can reach when measuring the purpose of a plurality of elements whiles " dilution " to linear measurement range.
2. can utilize principle of the present utility model, when the light-source system design of carrying out device, according to the composite factors such as spectrum interference between number, elemental characteristic wavelength and the element of element in institute's test sample product, the alternate conduction assembled scheme of composite hollow cathode modulation, hollow cathode lamp and composite hollow cathode modulation by designing different element combinations, reach multichannel list, recombination radiation light beam by atomizer, the simultaneously-measured purpose of a plurality of elements.
3. can utilize principle of the present utility model, when the light path system design of carrying out device, by the wavelength degree of closeness, make the light path of its outgoing overlapping or approach overlapping principle, according to the light beam that the multichannel behind the grating beam splitting is contained the single-element characteristic wavelength by designing different I
1 ~ nWith the angle β of grating normal, to achieve the above object.
4. can utilize principle of the present utility model, when the light beam marshalling system design of carrying out device, on above-mentioned 3 basis, emitting light path is overlapping and approach overlapping light beam and compile and be same group, every group of light beam focuses on the same photoelectric commutator, the overlapping degree of emitting light path is high more, and the employed photoelectric commutator number of then corresponding photoelectric commutator system is just few more, thus the purpose that reaches photoelectric commutator service efficiency height, saves the space, saves cost.
5. though the emitting light path behind grating beam splitting is overlapping, because the working method of light-source system is for alternately sending light beam, so the spectrum interference problem that does not exist prior art to exist.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a schematic diagram of device of the present utility model.
Fig. 2 is a structure drawing of device of the present utility model.
Fig. 3 is an installation drawing of the present utility model.
Embodiment
Embodiment 1: as shown in Figure 1, a kind of atomic absorption unit of multielement simultaneous determination is made up of light-source system device 50, light path system device 51,53, atomizer 52, grating 54, light beam marshalling system and device 55, photoelectric commutator system and device 56, computer system 57, and above-mentioned light-source system device 50 can be by 2 or 3 or 4 or 5 or 6 or 7 or 8 hollow cathode lamps with by 1 or and 2 or and 3 or and 4 or and 5 or and 6 or and 7 or form with 8 composite hollow cathode modulations.Between light-source system device 50 and atomizer 52, light path system device 51 is housed, be made up of focus lamp, semi-transparent semi-reflecting lens and catoptron, its installation site guarantees to have one road or one road above light beam and atomizer 52 to be parallel direction, to have one road or one road above light beam to become angle less than 90 ° with atomizer in addition.Between atomizer 52 and grating 54, light path system device 53 is housed, be made up of focus lamp, semi-transparent semi-reflecting lens, catoptron and slit etc., its installation site guarantees that having at least two-way or the above light beam of two-way to be the different incident angle β less than 30 ° with the normal direction with grating 54 injects grating 54.Light beam marshalling system and device 55 is installed between grating 54 and the photoelectric commutator system and device 56, facetted mirrors and catoptron by slit, strap clamp angle are formed, wherein the angle of the facetted mirrors at strap clamp angle is less than 170 °, and the installation site of the facetted mirrors at strap clamp angle guarantees that the position that light beam sends drops in the angle The corresponding area.The back of light beam marshalling system and device 55 is equipped with photoelectric commutator system and device 56 and is electrically connected with computer installation 57, and wherein the photoelectric commutator system and device is made up of the photomultiplier more than 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8.
Embodiment 2: as Fig. 2, shown in Figure 3, and the simultaneously-measured device of 7 elements.The light-source system device of this device contains recombination radiation light source 1, recombination radiation light source 2, recombination radiation light source 3.The light path system device has semi-permeable and semi-reflecting mirror 4, catoptron 5, focus lamp 6, focus lamp 7, focus lamp 9, focus lamp 10, catoptron 11, catoptron 12, entrance slit 13, entrance slit 14.Have the grating 15 of atomizer 8, beam splitting system to be fixed on the support structure of this device, light beam marshalling system and device has facetted mirrors 21, the catoptron 22 at exit slit 16, exit slit 17, exit slit 18, exit slit 19, exit slit 20, strap clamp angle.The photoelectric commutator system and device has photomultiplier 23, photomultiplier 24, photomultiplier 25, photomultiplier 26, and is electrically connected with computer system apparatus 27.Wherein recombination radiation light source 1 is that Fe, Mg composite hollow cathode modulation, recombination radiation light source 2 is made up of single-chip microcomputer and multi-purpose computer for K, Na composite hollow cathode modulation, computer system apparatus 27 for Cu, Zn, Ca composite hollow cathode modulation, recombination radiation light source 3.
The installation site of recombination radiation light source 1 and atomizer 8 are the angle less than 90 °, and the installation site and the atomizer 8 of recombination radiation light source 2, recombination radiation light source 3 are parallel direction.
Front end at atomizer 8 has light path system, the front that condenser 6 is installed recombination radiation light source 1; Semi-transparent semi-reflecting lens 4 and catoptron 5 are installed in recombination radiation light source 2, recombination radiation light source 3 fronts, and 5 one-tenth parallel angles of semi-transparent semi-reflecting lens 4 and catoptron are installed simultaneously, and focus lamp 7 is installed in the back of semi-transparent semi-reflecting lens 4 and catoptron 5; The light beam that sends of light-source system device is gone into the light path system to be parallel to atomizer 8 or to be less than 90 ° angle α with parallel direction by atomizer 8 is laggard like this.
There is light path system rear end at atomizer, focus lamp 9, focus lamp 10 are installed in a side of catoptron 12,11, the opposite side of catoptron 11,12 is equipped with entrance slit 13,14 and grating 15, and the front of grating 15 is equipped with the facetted mirrors 21 and the catoptron 22 at exit slit 16,17,18,19,20, strap clamp angle.The angle of the facetted mirrors at strap clamp angle is less than 170 °, and the installation site guarantees that the position that light beam sends drops in the angle The corresponding area.Photomultiplier 23,24,2526 is installed in corresponding light beam receiving position and is electrically connected with computer system apparatus 27.
The light K1 that recombination radiation light source 1 sends sees through focus lamp 6, the light K2 that recombination radiation light source 2 sends sees through semi-permeable and semi-reflecting mirror 4 and focus lamp 7, after light K3 penetration mirror 5 that recombination radiation light source 3 sends and semi-permeable and semi-reflecting mirror 4 and focus lamp 7 alternately enter atomizer 8 respectively, light K1 is through focus lamp 10 and through catoptron 12 and entrance slit 14, light K2 and K3 see through focus lamp 9 and incide grating 15 through catoptron 11 and entrance slit 13, be divided into 7 bundles and contain Zn respectively after grating 15 beam split, Fe, Mg, Na, Cu, K, the light beam K4 of Ca characteristic wavelength, K5, K6, K7, K8, K9, K10.This 7 bundle light divides 4 the tunnel alternately to enter photomultiplier 23,24,25,26 and computer system apparatus 27 respectively through marshalling, can obtain the concentration value of 7 kinds of elements.Wherein K4, K5 enter electric multiplier tube 23 through exit slit 16 and catoptron 22, K6 enters electric multiplier tube 24 behind exit slit 17, K7, K8 enter electric multiplier tube 25 behind exit slit 18, K9, the K10 facetted mirrors 21 through exit slit 19,20 and strap clamp angle enters electric multiplier tube 26.
Claims (5)
1. the atomic absorption unit of a multielement simultaneous determination, by light-source system, light path system, the atomizer beam splitting system, light beam marshalling system, photo-translating system, computer system is formed, wherein photo-translating system is electrically connected with computer system, it is characterized in that: above-mentioned light-source system by 2 or 3 or 4 or 5 or 6 or 7 or 8 hollow cathode lamps and by 1 or and 2 or and 3 or and 4 or and 5 or and 6 or and 7 or and 8 composite hollow cathode modulations form, above-mentioned light path system is by focus lamp, semi-transparent semi-reflecting lens, catoptron and slit are formed, and be divided into the two ends that two parts are installed in atomizer respectively, above-mentioned beam splitting system is made up of grating, above-mentioned light beam marshalling system is by slit, the facetted mirrors at strap clamp angle and catoptron are formed, wherein the angle of the facetted mirrors at strap clamp angle is less than 170 °, the installation site of the facetted mirrors at strap clamp angle is satisfied the position that light beam sends and is dropped in the angle The corresponding area, and above-mentioned photo-translating system is made up of 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 s' photomultiplier.
2. the atomic absorption unit of a kind of multielement simultaneous determination according to claim 1, it is characterized in that: the light beam that the light-source system between light-source system and atomizer sends, be parallel to atomizer or with the angle of parallel direction less than 90 °, the normal direction that its between atomizer and beam splitting system passes the light beam of atomizer and grating is the incident angle less than 30 °.
3. the atomic absorption unit of a kind of multielement simultaneous determination according to claim 2, it is characterized in that: the light-source system device contains recombination radiation light source 1, recombination radiation light source 2, recombination radiation light source 3, the light path system device has semi-permeable and semi-reflecting mirror 4, catoptron 5, focus lamp 6, focus lamp 7, focus lamp 9, focus lamp 10, catoptron 11, catoptron 12, entrance slit 13, entrance slit 14, atomizer 8 is arranged, the grating 15 of beam splitting system is fixed on the support structure of this device, light beam marshalling system and device has exit slit 16, exit slit 17, exit slit 18, exit slit 19, exit slit 20, the facetted mirrors 21 at strap clamp angle, catoptron 22, the photoelectric commutator system and device has photomultiplier 23, photomultiplier 24, photomultiplier 25, photomultiplier 26, and be electrically connected with computer system apparatus 27, wherein recombination radiation light source 1 is Fe, Mg composite hollow cathode modulation, recombination radiation light source 2 is Cu, Zn, Ca composite hollow cathode modulation, recombination radiation light source 3 is K, Na composite hollow cathode modulation, computer system apparatus 27 is made up of single-chip microcomputer and multi-purpose computer.
4. the atomic absorption unit of a kind of multielement simultaneous determination according to claim 1, it is characterized in that: the light-source system device contains recombination radiation light source 1, recombination radiation light source 2, recombination radiation light source 3, the light path system device has semi-permeable and semi-reflecting mirror 4, catoptron 5, focus lamp 6, focus lamp 7, focus lamp 9, focus lamp 10, catoptron 11, catoptron 12, entrance slit 13, entrance slit 14, atomizer 8 is arranged, the grating 15 of beam splitting system is fixed on the support structure of this device, light beam marshalling system and device has exit slit 16, exit slit 17, exit slit 18, exit slit 19, exit slit 20, the facetted mirrors 21 at strap clamp angle, catoptron 22, the photoelectric commutator system and device has photomultiplier 23, photomultiplier 24, photomultiplier 25, photomultiplier 26, and be electrically connected with computer system apparatus 27, wherein recombination radiation light source 1 is Fe, Mg composite hollow cathode modulation, recombination radiation light source 2 is Cu, Zn, Ca composite hollow cathode modulation, recombination radiation light source 3 is K, Na composite hollow cathode modulation, computer system apparatus 27 is made up of single-chip microcomputer and multi-purpose computer.
5. the atomic absorption unit of a kind of multielement simultaneous determination according to claim 4, it is characterized in that: the installation site of recombination radiation light source 1 and atomizer 8 are the angle less than 90 °, the installation site of recombination radiation light source 2, recombination radiation light source 3 and atomizer 8 are parallel direction, front end at atomizer 8 has light path system, the front that condenser 6 is installed recombination radiation light source 1; Semi-transparent semi-reflecting lens 4 and catoptron 5 are installed in recombination radiation light source 2, recombination radiation light source 3 fronts, and 5 one-tenth parallel angles of semi-transparent semi-reflecting lens 4 and catoptron are installed simultaneously, and focus lamp 7 is installed in the back of semi-transparent semi-reflecting lens 4 and catoptron 5; The light beam that sends of light-source system device is gone into the light path system to be parallel to atomizer 8 or to be less than 90 ° angle α with parallel direction by atomizer 8 is laggard like this, there is light path system rear end at atomizer, focus lamp 9, focus lamp 10 is installed in catoptron 12, a side of 11, catoptron 11,12 opposite side is equipped with entrance slit 13,14 and grating 15, the front of grating 15 is equipped with exit slit 16,17,18,19,20, the facetted mirrors 21 at strap clamp angle and catoptron 22, the angle of the facetted mirrors at strap clamp angle is less than 170 °, and the installation site guarantees that the position that light beam sends drops in the angle The corresponding area photomultiplier 23,24,25 26 are installed in corresponding light beam receiving position and are electrically connected with computer system apparatus 27.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520110579 CN2826408Y (en) | 2005-07-01 | 2005-07-01 | Atom absorption device capable of multielement simultaneous determination |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520110579 CN2826408Y (en) | 2005-07-01 | 2005-07-01 | Atom absorption device capable of multielement simultaneous determination |
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| CN2826408Y true CN2826408Y (en) | 2006-10-11 |
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| CN 200520110579 Expired - Lifetime CN2826408Y (en) | 2005-07-01 | 2005-07-01 | Atom absorption device capable of multielement simultaneous determination |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184834A (en) * | 2011-04-21 | 2011-09-14 | 齐齐哈尔医学院 | Hollow cathode lamp and atomic absorption spectrometer manufactured by hollow cathode lamp |
| CN104865206A (en) * | 2015-04-24 | 2015-08-26 | 上海伯顿医疗设备有限公司 | Single photoelectric tube five-channel atomic absorption spectrometer |
-
2005
- 2005-07-01 CN CN 200520110579 patent/CN2826408Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102184834A (en) * | 2011-04-21 | 2011-09-14 | 齐齐哈尔医学院 | Hollow cathode lamp and atomic absorption spectrometer manufactured by hollow cathode lamp |
| CN102184834B (en) * | 2011-04-21 | 2013-06-26 | 齐齐哈尔医学院 | Hollow cathode lamp and atomic absorption spectrometer manufactured by hollow cathode lamp |
| CN104865206A (en) * | 2015-04-24 | 2015-08-26 | 上海伯顿医疗设备有限公司 | Single photoelectric tube five-channel atomic absorption spectrometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090715 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |