Figure 5
Sulfur K-edge spectrum of a solution containing L-cysteine, DMSO, L-methionine sulfone and sodium sulfate (thick line) and fitting by linear regression with the individual normalized spectra of L-cysteine (open circles), DMSO (filled triangles), L-methionine sulfone (crosses), sodium sulfate (open squares), sum of fit (thin line) and residuals (filled circles). The prepared and calculated concentrations of the different species are given in the inset table. |