Atom absorption method and apparatus for multi-element simultaneous determination

An atomic absorption, multi-element technology, applied in the field of measuring instruments, can solve the problem of not being able to measure multiple elements at the same time, and achieve the effects of high use efficiency, cost saving and space saving

Active Publication Date: 2005-11-23
BEIJING BOHUI INNOVATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the technical deficiency of the existing technology that the number of multiple elements more than copper, zinc, calcium, magnesium, and iron can be simultaneously measured, an atomic absorption method and device for simultaneous determination of multiple elements are provided, which can simultaneously An atomic absorption method and device for the simultaneous determination of multiple elements with less spectral interference, high measurement accuracy, simple structure, and high reliability for the measurement of more elements

Method used

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  • Atom absorption method and apparatus for multi-element simultaneous determination
  • Atom absorption method and apparatus for multi-element simultaneous determination
  • Atom absorption method and apparatus for multi-element simultaneous determination

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Experimental program
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Embodiment 1

[0025] Embodiment 1: as figure 1 As shown, an atomic absorption device for simultaneous determination of multiple elements consists of a light source system device 50, optical path system devices 51, 53, atomizer 52, grating 54, beam grouping system device 55, photoelectric converter system device 56, and computer system 57 The above-mentioned light source system device 50 can be composed of 2 or 3 or 4 or 5 or 6 or 7 or 8 hollow cathode lamps and 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 lamps. An optical path system device 51 is installed between the light source system device 50 and the atomizer 52, which is composed of a focusing mirror, a half-transparent mirror and a reflector, and its installation position ensures that one or more than one light beams and the atomizer 52 are formed Parallel direction, and one or more beams form an angle less than 90° with the atomizer. An optical path system device 53 is installed betwee...

Embodiment 2

[0026] Embodiment 2: as figure 2 , image 3 as shown,

[0027] Device for simultaneous measurement of 7 elements. The light source system device of the device includes a compound radiation source 1 , a compound radiation source 2 and a compound radiation source 3 . The optical path system device has a half mirror 4, a reflector 5, a focusing mirror 6, a focusing mirror 7, a focusing mirror 9, a focusing mirror 10, a reflecting mirror 11, a reflecting mirror 12, an incident slit 13, and an incident slit 14. The grating 15 that atomizer 8, spectroscopic system are arranged is fixed on the structural support of this device, and beam grouping system device has exit slit 16, exit slit 17, exit slit 18, exit slit 19, exit slit 20, Combined reflector 21 and reflector 22 with included angle. The photoelectric converter system device has a photomultiplier tube 23 , a photomultiplier tube 24 , a photomultiplier tube 25 , and a photomultiplier tube 26 , and is electrically connected...

Embodiment 3

[0032] Embodiment 3: an atomic absorption method for simultaneous determination of multiple elements; its steps are as follows:

[0033] Step 1: 7 radiation sources alternately emit multiple composite radiation beams containing the characteristic wavelengths of the elements to be measured, and the beams contain 7 characteristic wavelengths of the elements to be measured Zn, Fe, Mg, Na, Cu, K, and Ca;

[0034] Step 2: Pass the above-mentioned light beam through the atomizer parallel to the atomizer or at an angle α less than 90° to the parallel direction, and then enter the grating at an incident angle β less than 30° from the normal direction of the grating The light K1 sent by the composite radiation source 1 passes through the focusing mirror 6, the light K2 sent by the composite radiation source 2 passes through the half-reflector 4 and the focusing mirror 7, and the light K3 sent by the composite radiation source 3 passes through the mirror 5 and reflects The mirror 4 and ...

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Abstract

The invention relates to an atom absorption measuring device comprising light system, light path system, atomizer, sub light system, optical beam setting system, photo-translating system and computer; and it comprise the following steps: a composite radiation light beam of multi-path alternative emitting including special element's characteristic wavelength, which is though atomic device paralleled or with alpha< 90 deg. and incidents into grid with the angle of normal orientation beta<30 deg.; The radiation light beam of multi-path alternative emitting including single element's characteristic wavelength which is sectored by the grid re-combines after light beam composing; every light beam integrated uses one light path alternative entered multi-path light measuring system to get measurement; computer system computes every element's concentration value after data pressing.

Description

Technical field [0001] The invention relates to an atomic absorption method and device for simultaneous determination of multiple elements. It belongs to the field of measuring instruments. Background technique [0002] The principle of atomic absorption analysis is the resonant absorption of light radiation energy by free atoms in the ground state. The concentration of elements contained in the sample can be deduced by measuring the degree of absorption of light radiation energy by the atoms in the free ground state. The multi-element simultaneous determination technology is that the free atoms in the ground state resonate and absorb multiple optical radiation energies with different characteristic wavelengths at the same time, and measure the absorption degree of the free ground state atoms to the optical radiation energy with different characteristic wavelengths, so as to deduce the content of different elements in the sample. concentration. [0003] Chinese patent (01...

Claims

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Application Information

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IPC IPC(8): G01N21/31
Inventor 杨奇
Owner BEIJING BOHUI INNOVATION TECH
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