Recent developments in x-ray spectrometry

摘要: I. INTRODUCTION Although X-ray spectrometry has a history covering nearly 70 years,1 it is only within the last 25 that technique added significantly to armory of weapons available analytical chemist. The reasons for rapid increase in use recent years are not hard find. A very large proportion requirements inorganic elemental analysis can be met by spectrometry: All elements from uranium down sodium and, with limitations, on beryllium, detected and determined at concentrations 100% below 1 ppm favorable cases, relative precision, when necessary, 0.1% higher concentrations. methods inherently nondestructive most samples almost always repetitive checks, or further other means. sample state solid, liquid, gaseous first case take wide variety forms. Qualitative spectra easily interpreted qu...