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Method for measuring component content of bagged complex solution though double-light path fluorescence spectroscopy

A fluorescence spectrum and dual optical path technology, which is applied in the direction of measuring devices, fluorescence/phosphorescence, and material analysis through optical means, can solve the problems of fluorescence self-absorption, spectral nonlinearity, etc., and achieve strong measurement pertinence and increase the amount of information , the effect of suppressing nonlinear effects

Inactive Publication Date: 2017-09-15
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the influence of incident light intensity, optical path length and measured target concentration, the fluorescence has a serious self-absorption problem, which will cause the nonlinearity of the spectrum. To solve this problem, the present invention proposes a dual-path fluorescence spectrum Method for Measuring Contents of Components in Bags of Complex Solutions

Method used

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  • Method for measuring component content of bagged complex solution though double-light path fluorescence spectroscopy
  • Method for measuring component content of bagged complex solution though double-light path fluorescence spectroscopy
  • Method for measuring component content of bagged complex solution though double-light path fluorescence spectroscopy

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Embodiment 1

[0054] The embodiment of the present invention provides a method for measuring the composition content of a bagged complex solution by dual optical path 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 .

[0055] 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 and coaxial, and the fluorescence excitation light source 3 faces the inside of the packaging bag 5 at the first position a (corresponding to the first optical path 1). The bagged complex solution sample is excited, and the fluorescence spectrum is collected by the spectrum receiving device 7 . Subsequently, the displacement platform 6 controls the fluorescence excitation light source to move to the second position b (corresponding to the ...

Embodiment 2

[0064] 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:

[0065] see figure 2 , 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 and coaxial, the fluorescence excitation light source 3 excites the bagged complex solution sample in the packaging bag 5, and the spectrum receiving device 7 A fluorescence spectrum is collected at a first position a. Then, the displacement platform 6 controls the spectrum receiving device 7 to move to the second position b under the premise of ensuring that the light outlet of the fluorescence excitation light source 3 is coaxial with the incident slit of the spectrum receiving device 7, and collects the fluorescence spectrum at the se...

Embodiment 3

[0070] The difference between the embodiment of the present invention and embodiment 1 is only that the fluorescence excitation light source 3 and the moving direction of the spectrum receiving device 7 are different, see the following description for details:

[0071] see image 3 , ensure that the fluorescent excitation light source 3 and the spectrum receiving device 7 are close to the packaging bag 5, and ensure that the light outlet of the fluorescence excitation light source 3 and the incident slit of the spectrum receiving device 7 are coaxial, and that the fluorescent excitation light source 3 pairs the packaging at the first position a The bagged complex solution sample in the bag 5 is excited, and the fluorescence spectrum is collected by the spectrum receiving device 7 at the first position a', and then the displacement platform 6 is used to ensure that the fluorescence excitation light source 3 exits the light port and the spectrum receiving device 7 enters the slit...

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Abstract

The invention discloses a method for measuring the component content of a bagged complex solution through double-light path fluorescence spectroscopy. The method comprises the following steps: allowing the light exit port of a fluorescence excitation light source and the entrance slit of a spectrum receiving device to be close to and coaxial with a packaging bag, exciting a complex solution sample by the fluorescence excitation light source, and acquiring the fluorescence spectrum by the spectrum receiving device; controlling the fluorescence excitation light source to move on the premise of guaranteeing that the light exit port of the fluorescence excitation light source is coaxial with the entrance slit of the spectrum receiving device by a displacement platform, and acquiring fluorescence spectra; normalizing the acquired two fluorescence spectra, comparing the obtained normalization result with existing chemical analysis results, and establishing a mathematical model; and acquiring the double-light path fluorescence spectra of an unknown complex solution, normalizing the fluorescence spectra, and substituting the obtained normalization result into the mathematical model in order to obtain the content of a measured target component. The method has the advantages of high measurement pertinence, great inhibition of spectral nonlinear influences brought by fluorescence self-absorption, improvement of the precision of component content analysis of the complex solution, solving of the nondestructive detection problem of the component of the complex solution, high efficiency and no pollution.

Description

technical field [0001] The invention relates to the field of concentration analysis stoichiometry of spectrally complex solutions, in particular to a method for measuring the content of target components in complex solutions in complex solutions in packaging bags by dual-path 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 complex solution in the packaging bag by means of 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 samples for testing. It cannot meet the needs of fast, non-contact and pollution-free. [0003] Due to its non-contact, non-polluting, and highly targeted characteristics, fluorescence spectroscopy measurement may also realize the content detection of the target components measured in the complex solution in the packagi...

Claims

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Application Information

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IPC IPC(8): G01N21/64
CPCG01N21/6402
Inventor 李刚罗永顺张梦秋张盛昭林凌
Owner TIANJIN UNIV
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