幾種二階校正方法結(jié)合三維熒光測定中藥中的有效組分
[Abstract]:Chemometrics is an interdisciplinary discipline involving mathematics, computer science and analytical chemistry, which is used to maximize the availability of chemical information from the chemical measurement process. The second-order calibration method of chemometrics can replace chemical separation with "mathematical separation" in the presence of unknown interference, and directly carry out qualitative and quantitative analysis of the analyte. Chinese traditional medicine is an excellent part of Chinese traditional culture, with a long history. The composition of traditional Chinese medicine is complex, and most of its active components have fluorescence properties. In this paper, the three dimensional fluorescence and second order correction method were used to analyze the pharmacodynamic components of traditional Chinese medicine and human body liquid. In chapter 2, the content and recovery of paeonol in traditional Chinese medicine Xu Changqing and paeonol ointment were determined by combining alternating trilinear decomposition algorithm (ATLD) with 3D fluorescence. Background interference was found in both Hsu Changqing and paeonol ointment, and the fluorescence spectra of interference components overlapped with those of paeonol. The second order correction method is used to analyze the three dimensional fluorescence data directly, avoiding the chemical separation step, and the qualitative and quantitative results are obtained. The results are verified by high performance liquid chromatography (HPLC), and the results are satisfactory. In the third chapter, the contents of 偽 -asarone and 尾 -asarone in Acorus calamus and Acanthophora chinensis were studied. The fluorescence properties of 偽 -asarone and 尾 -asarone are very similar, and the spectrum overlap is serious. It is difficult to determine these two components simultaneously by fluorescence analysis alone. The content of 偽-asarone and 尾-asarone in Acorus calamus and Crapa chinensis can be directly analyzed by using three dimensional fluorescence and second order correction method. The parallel factor analysis method (PARAFAC), alternating trilinear decomposition method (ATLD), self-weighted alternating trilinear decomposition method (SWATLD), alternating penalty trilinear decomposition method (APTLD), expansion partial least-squares bilinear decomposition method (U-PLS/RBL) and multidirectional partial least squares residual method are compared. The analytical results of the six second-order correction methods called differential bilinear decomposition (N-PLS/RBL), The method of U-PLS/RBL and N-PLS/RBL has some advantages in the determination of 偽 -asarone and 尾 -asarone, and the results obtained are more accurate. The recoveries of 偽 -asarone and 尾 -asarone in Acorus calamus and Cladopper chinensis were analyzed by U-PLS/RBL method and N-PLS/RBL method, respectively, and the recoveries of 偽 -asarone and 尾 -asarone were good. In chapter 4, six second-order calibration methods are compared to determine the concentration of 偽 -asarone in plasma and urine, and the results are compared when the concentration of 偽 -asarone is high or low. There is a background interference component in both plasma and urine, especially when 偽-asarone concentration is low. The second order correction method can be used to directly determine the concentration of the object to be measured without separation. The results obtained by the six two order correction methods are basically the same and the recovery rate is good.
【學(xué)位授予單位】:河北師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:R284.1;O657.3
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