Electrochemical deposition and x-ray fluorescence spectroscopy

摘要

an x-ray fluorescence spectrometer (52); and a sample holder (2) for the x-ray fluorescence (XRF) spectrometer (52), wherein the sample holder (2) comprises: an electrically conductive synthetic diamond electrode (4) providing a front surface (6) on which chemical species can be electro-deposited from a solution (48) comprising the chemical species; an ohmic contact (8) disposed on a rear surface of the electrically conductive synthetic diamond electrode (4); and an electrical connector (10) which is connected to the ohmic contact (8), and wherein the x-ray fluorescence spectrometer (52) comprises: an XRF sample stage (58) configured to receive the sample holder (2); an x-ray source (54) configured to apply an x-ray excitation beam to the chemical species electro-deposited on the electrically conductive synthetic diamond electrode (4) when the sample holder (2) is mounted to the XRF sample stage (58); an x-ray detector (60) configured to receive x-rays emitted from the chemical species electro-deposited on the front surface (6) of the electrically conductive synthetic diamond material when the sample holder (2) is mounted to the XRF sample stage (58); and a processor (62) configured to generate x-ray fluorescence spectroscopic data based on the x-rays received by the x-ray detector. Such system allows to carry out simultaneously and in-situ stripping voltammetry measurements together with X-ray fluorescence measurements.