Method for measuring component content of complex liquor by double-optical-path multiposition fluorescence spectra

A fluorescence spectrum, dual optical path technology, applied in the direction of fluorescence/phosphorescence, material excitation analysis, etc., to achieve the effects of strong measurement pertinence, improved accuracy, and suppressed spectral nonlinearity

Inactive Publication Date: 2017-12-01
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It solves the problem of non-destructive testing of complex solution components in packaging bags. It is efficient, simple and pollution-free. See the description below for details:

Method used

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  • Method for measuring component content of complex liquor by double-optical-path multiposition fluorescence spectra
  • Method for measuring component content of complex liquor by double-optical-path multiposition fluorescence spectra
  • Method for measuring component content of complex liquor by double-optical-path multiposition fluorescence spectra

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Effect test

Embodiment 1

[0055] The embodiment of the present invention provides a method for measuring the content of complex solution components by dual optical path and multi-position fluorescence spectroscopy. The devices used are such as figure 1 As shown, it includes: a fluorescent excitation light source 3 , a packaging bag 5 , a displacement platform 6 and a spectrum receiving device 7 .

[0056] Wherein, ensure that the light outlet of the fluorescence excitation light source 3 and the incident slit of the spectrum receiving device 7 are close to the packaging bag 5, the fluorescence excitation light source 3 is under the two optical paths at the position a: position a (corresponding to the first optical path 1) and position a' (corresponding to the second optical path 2) to excite the complex solution sample in the packaging bag 5, and the fluorescence spectrum is collected by the spectrum receiving device 7; then the fluorescence excitation light source 3 is controlled by the displacement pl...

Embodiment 2

[0065] The difference between the embodiment of the present invention and embodiment 1 is only that the fluorescence excitation light source 3 and the movement mode of the spectrum receiving device 7 are different, see the following description for details:

[0066] see figure 2 , to ensure that the light outlet of the fluorescence excitation light source 3 and the incident slit of the spectrum receiving device 7 are close to the packaging bag 5, the fluorescence excitation light source 3 excites the complex solution sample in the packaging bag 5, and the spectrum receiving device 7 is placed at position a Fluorescence spectra of positions a and a' are collected under dual optical paths. The spectrum receiving device 7 is controlled by the displacement platform 6 to move to position b, and the fluorescence spectrum under the double optical path at position b is collected, namely: the fluorescence spectrum at position b and position b'; the spectrum receiving device 7 is contr...

Embodiment 3

[0071] During specific implementation, due to the limitation of the space structure, it may occur that the fluorescence excitation light source 3 and the spectrum receiving device 7 cannot be close to the packaging bag 5. At this time, an optical fiber can be respectively arranged at the fluorescence excitation light source 3 and the spectrum receiving device 7 , as the incident fiber 4 and the exit fiber 8 .

[0072] see image 3 , the fluorescence excitation light source 3 excites the complex solution sample in the packaging bag 5 through the incident optical fiber 4, the fluorescence spectrum is collected by the spectrum receiving device 7 through the outgoing optical fiber 8, the incident optical fiber 4 and the outgoing optical fiber 8 are respectively close to the packaging bag 5, and the incident optical fiber 4 At position a, the fluorescence excitation light source 3 excites the complex solution sample through the incident optical fiber 4 under the double optical path...

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Abstract

The invention discloses a method for measuring the component content of complex liquor by double-optical-path multiposition fluorescence spectra. The method includes clinging a light outlet of a fluorescence excitation light source and an entrance slit of a spectrum receiving device to a package bag, exciting the complex liquor by the fluorescence excitation light source, and collecting the fluorescence spectra by the spectrum receiving device; controlling the fluorescence excitation light source to move to different positions by a displacement platform, normalizing the fluorescence spectra collected at multiple positions under double optical paths, comparing with existing chemical analysis results, and creating a mathematical model; collecting fluorescence spectra of unknown complex liquor at multiple positions under the double optical paths, subjecting the fluorescence spectra to normalization processing, and inputting the fluorescence spectra into the mathematical model for calculation to acquire the content of a tested target component of the complex liquor. The method has the advantages that the amount of information of excited materials is increased, and self-absorption of fluorescence is inhibited greatly through double-optical-path measurement; through multiposition measurement, influences brought by scattering of the complex liquor are inhibited greatly, and analysis accuracy of the component content of the complex liquor is improved.

Description

technical field [0001] The invention relates to the field of stoichiometry for concentration analysis of spectrally complex solutions, in particular to a method for measuring the content of components in complex solutions with dual optical paths and multi-position fluorescence spectroscopy. Background technique [0002] In the existing technology, the relatively mature technology is to detect the content of the target components measured in the bagged complex solution by chemical inspection, which has the outstanding advantage of high accuracy, but the method of chemical inspection needs to open the packaging bag to take out the sample for testing, which cannot To meet the needs of fast, non-contact and pollution-free. [0003] The study found that fluorescence spectroscopy measurement is also possible to detect the content of the target components measured in the complex solution in the packaging bag due to its non-contact, non-polluting, and highly targeted characteristics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
CPCG01N21/64
Inventor 李刚张盛昭罗永顺张梦秋林凌
Owner TIANJIN UNIV
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