![]() Generally, the closer the value to 1 and less noisy the residual, the better the fit.Ī good visual check is the correspondence between the experimental data and the fitted peak envelope. Holding down the Shift key while dragging allows one variable to be altered without the other. ![]() Good references for common ranges for chemical shifts for different environmentsbondingoxidation state are the Appendices of the The XPS of Polymers Database, and NIST ( ). In the same box, switch to the Components tab and click Create.Įither click Fit Components a few times (three should be sufficient) or if it obvious there is more than one peak within the overall shape, more than one component can be created then the Fit Components button pressed. When on the Regions tab, there will be a pale blue region shown on the spectrum, with two edge lines either side.ĭrag the edges of the region created to either side of the photoemission peak, in a similar manner to the survey spectra. ![]() This box shows the quantification carried out, including the element photoemission level, RSF, and background type. ![]()
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