Figure 2
(a) EXAFS step-scan of a 10 mmol l−1 CuSO4 solution measured in fluorescence at the Cu K-edge in about 12 min. The insert depicts the derivative spectrum. (b) Piezo-QEXAFS (Cu K-edge, 9.1 Hz, 55 ms per spectrum) of a 10 mmol l−1 CuSO4 solution measured in fluorescence mode. Ten subsequent `up' spectra are displayed. The insert depicts the related derivative spectra. |