Progress of chemometrics methods for spectral quantitative analysis of complex matrix samples
The spectral analysis technology has been widely used in food,medicine,petrochemical,metallur-gy,and other fields due to its advantages of simplicity,rapidity,and nondestructive test.Therein,the che-mometrics method is the key to spectral analysis technology.This paper summarizes the basic process and framework for quantitative analysis of complex matrix samples,including the data grouping,spectral pre-processing,variable selection,and multivariate calibration.Traditional methods in these four areas are brief-ly introduced,and recent advances in chemometric methods in the field of quantitative spectral analysis since 2018 are introdued in detail.It provides an important reference basis for the further promotion and ap-plication of chemometric methods in the field of spectral analysis.
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