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of 11
pro vyhledávání: '"Ariana P. Pagani"'
Autor:
Gabriela A. Ibañez, Ariana P. Pagani
A new methodology involving four-way multivariate calibration with a balanced number of data points in all modes is presented. The method is based on fluorescence excitation-emission matrices modulated by a double pH gradient obtained in a flow injec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b73c953e904f820ad2897fb1153aa9ca
https://www.sciencedirect.com/science/article/pii/S0026265X1630371X
https://www.sciencedirect.com/science/article/pii/S0026265X1630371X
Autor:
Ariana P. Pagani, Gabriela A. Ibañez
Publikováno v:
Talanta. 122:1-7
In the present work, we describe the determination of salicylic acid and its major metabolite, salicyluric acid, in spiked human urine samples, using synchronous fluorescence spectra measured in a flowinjection system with a double pH gradient. Becau
Autor:
Gabriela A. Ibañez, Ariana P. Pagani
Publikováno v:
Microchemical Journal. 149:104042
The aim of the present work was to quantify simultaneously four pesticides, thiabendazole, fuberidazole, carbaryl and naphthyl acetic acid, in vegetables and fruits, measuring excitation–emission fluorescence matrices in a flow injection system wit
Publikováno v:
Analytical Sciences. 25:633-638
A simple and sensitive methodology for the simultaneous determination of levodopa and carbidopa in pharmaceutical samples is described. The method combines the advantages of fluorescence with partial least-squares (PLS) analysis, and requires no prev
Publikováno v:
Analytical Letters. 34:2077-2088
The use of multivariate calibration is reported for the analysis of ear drops, which contain the anti-inflammatory antipyrine, the antibiotic sulfathiazole and the analgesic rivanol. The components...
Publikováno v:
The Chemical Educator. 5:236-241
An advanced analytical chemistry laboratory experiment involving the simultaneous determination of the antibiotics sulfamethoxazole and trimethoprime in commercial tablets is described. It involves the following steps: (1) preparation of nine calibra
Publikováno v:
Analytical Letters. 32:1389-1401
The use of multivariate spectrophotometric calibration is reported for the analysis of tablets containing the antibiotics sulfamethoxazole and trimethoprim, and a combination of the former two drugs with the analgesic phenazopyridine. The resolution
Autor:
María J, Culzoni, Héctor C, Goicoechea, Gabriela A, Ibañez, Valeria A, Lozano, Nilda R, Marsili, Alejandro C, Olivieri, Ariana P, Pagani
Publikováno v:
Analytica chimica acta. 614(1)
Multivariate curve resolution coupled to alternating least-squares (MCR-ALS) has been employed to model kinetic-spectroscopic second-order data, with focus on the achievement of the important second-order advantage, under conditions of extreme spectr
Autor:
Héctor C. Goicoechea, Ariana P. Pagani, Miguel A. Cabezón, Alejandro C. Olivieri, María J. Culzoni
Publikováno v:
The Analyst. 131(6)
The combination of unfolded partial least-squares (U-PLS) with residual bilinearization (RBL) has not been properly exploited to process experimental second-order spectroscopic information, although it is able to achieve the important second-order ad
Publikováno v:
Journal of pharmaceutical and biomedical analysis. 23(2-3)
The mucolitic bromhexine [N-(2-amino-3,5-dibromobenzyl)-N-methylcyclohexylamine] has been determined in cotrimoxazole-containing tablets by partial least-squares (PLS-1) multivariate of spectrophotometric calibration data in the spectral range 310-35