Selection of Wavelength Range and Number of Factors to be Used in the PLS Treatment of Spectrophotometric Data

Recent developments in analytical determination of furosemide

“…The analytical signals obtained by conventional and synchronous fluorescence spectroscopy were processed by using a multivariate calibration method (PLS) and carefully selecting the wavelength range and number of factors to be used. One of the most salient advantages of them is that the vast amount of information provided by the whole spectrum of the sample is not required, this makes analyses simple and fast [35].…”

Simultaneous Analysis of Hydrochlorothiazide, Triamterene and Reserpine in Rat Plasma by HPLC and DSPE

“…Therefore, simultaneous determination of the analytes in biological samples is important in studying pharmacokinetics. However, to our best knowledge, no analytical method has been described in the literature which simultaneously determines these three analytes in biological samples, even though several methods exist, which separately determine either triamterene [1][2][3][4][5], hydrochlorothiazide [6][7][8], reserpine [9][10][11][12][13], or determine triamterene and hydrochlorothiazide simultaneously [14,15]. Though many kinds of analytical methods such as spectrophotometry, spectrofluorimetric, potentiometry, capillary electrophoresis, HPLC-UV, LC-MS were used in these literatures, it is tedious to determine three analytes separately for each sample using two different HPLC conditions or even two different detection methods.…”

Fabrication of an electrochemical molecularly imprinted polymer triamterene sensor based on multivariate optimization using multi-walled carbon nanotubes

“…Tr has thus been included on the list of forbidden substances of the International Olympic Committee. Different methods have been applied for Tr determination in pharmaceutical preparations and biological fluids, including spectrophotometry [4], chromatography (with spectrophotometric [5] and amperometric [6] detection), gas chromatography-mass spectrometry [7], liquid chromatography [8], micellar liquid chromatography [9], flow injection analysis-liquid chromatography [10], column switching chromatography [11], spectrofluorimetry [12], isopotential fluorometry [2], matrix isopotential synchronous fluorescence spectrometry [13], chemometric methods [3,[14][15][16], solid-phase and aqueous solution luminescence [17], capillary zone electrophoresis using fluorescence detection [18], capillary electrophoresis using ultraviolet absorbance and laser-induced fluorescence detection [19], potentiometry [20], polarography method [21,22], and transient retention in a continuous flow solid-phase system with fluorimetric detection [23].…”