کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1224498 1494677 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-parametric linear regression of discrete Fourier transform convoluted densitometric peak responses
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Non-parametric linear regression of discrete Fourier transform convoluted densitometric peak responses
چکیده انگلیسی

The manuscript discusses the application of chemometrics to the handling of TLC response time data. Derivative treatment of chromatographic response data followed by convolution of the resulting derivative curves using 8-points sin xi polynomials (discrete Fourier functions) was found to be beneficial in eliminating the interference due to background noise in TLC-densitometric measurements. It also compares the application of Theil's method, a non-parametric regression method, in handling the response data, with the least squares parametric regression method, which is considered the de facto standard method used for regression. Theil's method was found to be superior to the method of least squares as it assumes that errors could occur in both x- and y-directions and they might not be normally distributed. In addition, it could effectively circumvent any outlier data points.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Pharmaceutical and Biomedical Analysis - Volume 40, Issue 5, 18 March 2006, Pages 1048–1056
نویسندگان
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