![]() ![]() The XPS functions by irradiating a surface with a beam of x-rays which are usually monochromatic Al Ka (1486.6eV) or non-monochromatic Mg Ka (1253.6eV) in an ultra-high vacuum. Other examples include paints, inks, viscous oils, wood and papers. Some examples that can be analyzed using the XPS are elements, metal alloys, semiconductors polymers, ceramics, and inorganic compounds. Preparation of the samples is minimal if any you can analyze samples “as receive” or can clean the surface to eliminate any contaminates that might be present. Also, it can only analyze depths ranging from 1 to 10nm, for this reason it only gives analysis of the surface. This instrument will only detect elements with an atomic number higher of 3 and higher since hydrogen and helium atoms are very small and the probability of detecting them is almost zero. The XPS will measure the elemental composition, chemical state as well as the electronic state, thickness measurements of overlayers (up to 8nm), and will give you the empirical formula of the material that is being analyzed. X-Ray photoelectron spectroscopy (XPS), also known as electron spectroscopy for chemical analysis (ESCA) is a non-destructive technique used to analyze the surface of a material. Click here to see other posts about XPS Only 10 $ for interpretation of each element in your XPS spectrum ![]()
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