| 摘要 |
The invention relates to a method for detecting at least one chemical compound V that is contained in a medium (312). Said method has a verification step (420), in which the presence of the compound V in the medium (312) is determined. In addition, the method has an analysis step (424), in which a concentration c of the chemical compound or compounds V is determined. The verification step comprises the following sub-steps: (a1) the medium (312) is irradiated with first analysis radiation (316) of a variable wavelength λ, said wavelength λ having at least two different values; (a2) a spectral response function A(λ) is generated using the radiation (324) that has been absorbed and/or emitted and/or reflected and/or scattered by the medium (312), in response to the first analysis radiation (316); (a3) at least one spectral correlation function K(λδ) is formed by comparing the spectral response function(s) A(λ) with at least one model function R(λ+δλ), in which said model function(s) R(λ) represent(s) a spectral measured function of a medium (312) that contains the chemical compound V and λδ is a co-ordinate shift; (a4) the spectral correlation function(s) K(δλ) is examined in a model identification step (418) and conclusions are drawn as to whether the chemical compound(s) V is or are contained in the medium (312). The analysis step (424) has the following sub-steps: (b1) the medium (312) is irradiated with at least second analysis radiation (318) that has at least one excitation wavelength λ; (b2) at least one spectral analysis function B((λ, λR) is generated using the radiation (326) of the response wavelength λthat has been absorbed and/or emitted and/or reflected and/or scattered by the medium (312), in response to the second analysis radiation (318) of wavelength λand conclusions concerning the concentrationare drawn. |
