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- W2007816360 abstract "The Varimax extended rotations (VER) have been proposed as a new method to mathematically resolve severely overlapped peaks in chromatographic experiments that produce bilinear data. VER employs a four-step procedure to determine the relative concentration and identity of the components that comprise a severely overlapped chromatographic peak. In the first step, the data are pre-processed to ensure that they are in a form suitable for multivariate curve resolution. The second step involves principal component analysis, which reduces the dimensionality of the data matrix while simultaneously retaining the information present in the data. In the third step, a new coordinate system is developed for the data using a Varimax rotation followed by a so-called extended rotation, which assists in identifying the so-called pure regions in the peak. Identifying these regions is crucial to rotating the concentration and spectral matrices towards a solution. The fourth step utilizes alternating least squares (ALS) to improve the estimates of the concentration and spectral profiles of each component. Results from real and simulated data are used to illustrate the efficacy and simplicity of the proposed method." @default.
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- W2007816360 date "2002-07-01" @default.
- W2007816360 modified "2023-09-24" @default.
- W2007816360 title "Multivariate curve resolution in liquid chromatography—resolving two-way multi-component data using a Varimax extended rotation" @default.
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- W2007816360 doi "https://doi.org/10.1016/s0026-265x(02)00029-2" @default.
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