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Sample containers for use inside integrating cavities, and tools

A technology of sample container and integrating cavity, applied in the field of sample container and tools used in the integrating cavity

Active Publication Date: 2020-10-30
GRAINSENSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Determining the chemical composition is even more challenging where the sample contains many different chemical constituents, where the chemical constituents are complex molecules and / or spectra from targets that are difficult to reproducibly measure in practice

Method used

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  • Sample containers for use inside integrating cavities, and tools
  • Sample containers for use inside integrating cavities, and tools
  • Sample containers for use inside integrating cavities, and tools

Examples

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Embodiment Construction

[0026] Sample processing implements, such as sample containers and sample preparation implements, are described herein such that the implements are composed of or coated with materials that contain little or no hydrogen. As will be described shortly below, this provides benefits associated with the use of integrating chambers in which samples are placed for analysis.

[0027] figure 1 Example systems are described in accordance with at least some embodiments of the invention. The system includes an integrating cavity 110, which may have the shape of a sphere, an oval, or another suitable shape. If the cavity is a sphere, it may be called an Ulbricht sphere. A spherical shape is the most effective shape to homogenize the radiation in it. The inner walls of chamber 110 are coated with a suitable diffusion coating, such as Spectralon TM , magnesium oxide, barium sulfate, or another suitable material, depending on the wavelength to be studied. For example, a diffuse coating m...

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Abstract

There is provided a sample container (112) for use inside an optically integrating cavity (110), comprising an enclosing member comprised of fluorocarbon plastic, the enclosing member having diffuse transmittance of at least 80% and the sample container (112) being adapted to contain a solid or liquid sample.

Description

technical field [0001] The present invention relates to means for storing and preparing samples for spectroscopic methods. Background technique [0002] Spectral measurements are used to determine the composition of a sample. Chemical substances have characteristic frequencies of emission and absorption that correspond to spectral lines or bands in the spectrum. The eigenfrequencies can be used to determine which chemicals are present in the sample. Samples can be studied in a laboratory setting, however the same principles apply to determining compositions, for example, the composition of interstellar gas by determining which star rays passing through such clouds have been absorbed by the cloud's molecules . [0003] Thus, determining the chemical composition of a sample may involve obtaining a spectrum of the sample and then determining the spectral characteristics of the spectrum, for example by comparing the emission and / or absorption lines in the spectrum with those ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01L3/00G01N21/03
CPCG01N21/03G01N2021/0339G01N2201/0632G01N2201/065B01L3/508B01L9/523B01L2300/0609B01L2300/0654B01L2300/12B01L3/502B01L3/50853G01N1/04G01N1/14G01N21/01G01N21/255B01L2300/042B01L2300/168
Inventor 拉尔夫·马巴赫
Owner GRAINSENSE