首页> 外国专利> Method For Determining The Presence Of A Chemical Compound Which Is Homogeneously Distributed In A Medium By Means Of Cross-Correlating A Measuring Spectrum With Reference Spectra

Method For Determining The Presence Of A Chemical Compound Which Is Homogeneously Distributed In A Medium By Means Of Cross-Correlating A Measuring Spectrum With Reference Spectra

机译:通过将测量光谱与参考光谱互相关来确定在介质中均匀分布的化合物的存在的方法

摘要

The present invention relates to a method for determining the identity or non-identity of at least one chemical compound V′ homogeneous y distributed in a medium, by a) exposing the medium containing at least one homogeneously distributed chemical compound V′ to analysis radiation with a variable wavelength λ, and b) determining the spectral measurement function I′(λ) with the aid of the absorbed, reflected, emitted and/or scattered radiation, wherein a correlation function K(δλ,c′,c) is determined according to Equation I <math overflow="scroll"><mtable><mtr><mtd><mrow><mrow><mi>K</mi><mo>⁡</mo><mrow><mo>(</mo><mrow><mrow><mi>δ</mi><mo>⁢</mo><mstyle><mtext> </mtext></mstyle><mo>⁢</mo><mi>λ</mi></mrow><mo>,</mo><msup><mi>c</mi><mi>′</mi></msup><mo>,</mo><mi>c</mi></mrow><mo>)</mo></mrow></mrow><mo>=</mo><mrow><mrow><mn>1</mn><mo>/</mo><mi>N</mi></mrow><mo>·</mo><mrow><msubsup><mo>∫</mo><mrow><mo>-</mo><mi>∞</mi></mrow><mrow><mo>+</mo><mi>∞</mi></mrow></msubsup><mo>⁢</mo><mrow><mrow><mrow><msup><mi>I</mi><mi>′</mi></msup><mo>⁡</mo><mrow><mo>(</mo><mrow><mi>λ</mi><mo>,</mo><msup><mi>c</mi><mi>′</mi></msup></mrow><mo>)</mo></mrow></mrow><mo>·</mo><mrow><mi>I</mi><mo>⁡</mo><mrow><mo>(</mo><mrow><mrow><mi>λ</mi><mo>+</mo><mrow><mi>δ</mi><mo>⁢</mo><mstyle><mtext> </mtext></mstyle><mo>⁢</mo><mi>λ</mi></mrow></mrow><mo>,</mo><mi>c</mi></mrow><mo>)</mo></mrow></mrow></mrow><mo>⁢</mo><mstyle><mtext> </mtext></mstyle><mo>⁢</mo><mrow><mo>ⅆ</mo><mi>λ</mi></mrow></mrow></mrow></mrow></mrow></mtd><mtd><mrow><mo>(</mo><mi>I</mi><mo>)</mo></mrow></mtd></mtr></mtable></math> in which K(δλ,c′,c) denotes the correlation depending on the relative shift δλ of the functions I′(λ,c′) and I(λ,c) and the concentrations c′ and c of the at least one chemical compound V′ and V, c′ denotes the concentration of the at least one chemical compound V′ homogeneously distributed in the medium, with a known or suspected identity, c denotes the concentration of the at least one chemical compound V homogeneously distributed in the medium, with a known identity, I′(λ,c′) denotes the measurement function of the at least one homogeneously distributed chemical compound V′ in a medium containing the concentration c′, I(λ,c) denotes the comparison function of the at least one homogeneously distributed chemical compound V in a medium containing the concentration c, and N denotes a normalization factor and identity or non-identity between the compounds V and V′ is determined with the aid of the correlation function K(δλ,c′,c).
机译:本发明涉及一种用于确定在介质中分布的至少一种化合物V'均匀y的同一性或非同一性的方法,其方法是:可变波长λ,以及b)借助于吸收,反射,发射和/或散射的辐射确定光谱测量函数I'(λ),其中,根据等式I确定相关函数K(δλ,c′,c) <![CDATA [<数学溢出=“ scroll”> K δ λ c '< / mi> c = 1 / N · < mo>∫ - + < / mrow> I ' λ c ' · I λ + δ < mo>⁢ λ ,< / mo> c < / mtext> λ I ]]> 其中K(δλ,c',c)表示相关关系,取决于函数I'(λ,c')和I(λ,c)的相对位移δλ以及至少一个函数的浓度c'和c化合物V'和V,c'表示具有已知或可疑特性的均匀分布在介质中的至少一种化合物V'的浓度,c表示均匀分布在介质中的至少一种化合物V的浓度具有已知身份的介质,I'(λ,c')表示包含浓度c'的介质中至少一种均匀分布的化合物V'的测量函数,I(λ,c)表示...的比较函数在含有浓度c的介质中至少一种均匀分布的化合物V,N表示归一化因子,化合物V和V'之间的同一性或非同一性借助于相关函数K(δλ,c ',C)。

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