![]() However, most of the voltammetry studies to date have focused on a single actinide or lanthanide in eutectic LiCl-KCl. This paper examines experimental and analytical techniques that can be used to estimate the concentration of a molten salt mixture containing both lanthanum (III)- and gadolinium(III)-chloride in eutectic LiCl-KCl. The aspects of the experimental procedures and setup that are unique to a multi-lanthanide mixture are briefly discussed. Experimental results from qualitative and quantitative analyses of cyclic voltammetry and open-circuit potentiometry are presented. Due to the close proximity of their standard potentials, extensive analytical work is required to estimate the concentrations. Two approaches are used in this work: peak separation and multivariate analysis. ![]() The aim in high performance liquid chromatography (HPLC) and gas chromatography (GC) is to get good peak shape and good separation. The merits of these two methods will be analyzed and discussed.Non-linear curve fitting and data analysis SynopsisĬfityk. The most desirable outcome is the generation of symmetric peaks. Peak fronting is the name given to asymmetric peaks having a wider front half of the peak compared to the back half. This manpage documents briefly the fityk and cfityk programs for nonlinear fitting of analytical functions (especially peak-shaped) to data (usually experimental data). In other words, for nonlinear peak separation and analysis. It was developed for analyzing diffraction patterns, but can be also used in other fields, since concepts and operations specific for crystallography are separated from the rest of the program.įityk offers various nonlinear fitting methods, subtracting background, calibrating data, easy placement of peaks and changing peak parameters, automation of common tasks with scripts, and much more. The main advantage of the program is a flexibility - parameters of peaks can be arbitrarily binded with each other, eg. Fityk offers various nonlinear fitting methods, subtracting background, calibrating data, easy placement of peaks and changing peak parameters, automation of common tasks with scripts, and much more. width of peak can be an independent variable, can be the same as width of other peak or can be given by complicated - common for all peaks - formula. The main advantage of the program is flexibility - parameters of peaks can be arbitrarily bound to each other, eg. The program comes in two versions: fityk, the GUI version and cfityk, the command line version.Ī user manual for fityk and cfityk can be found in /usr/share/doc/fityk/html/fityk-manual.html. Khon Kaen, the mean annual temperature is 27☌, and the annual precipitation is 1,248 mm. Use -help to see the full list of options. The climate is classified as savanna according to Ko 7ppen (1931). Two cultivars of cassava (Manihot esculenta), KU 50 and Rayong 11, were planted on 26 November 2012. Cassava cuttings, 15 to 20 cm in length, were planted at 60 cm × 100 cm spacing. This manual page was written by Carlo Segre and updated by Marcin Wojdyr.
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