title: Ultratrace level detection of mercury by an X-ray excited optical fluorescence technique.
mesh_terms: D004787:Environmental Pollution; D005453:Fluorescence; D008628:Mercury / Q000032:analysis*; D008722:Methods; D009905:Optical Rotatory Dispersion; D013050:Spectrometry, Fluorescence; D014131:Trace Elements / Q000032:analysis*
chemical_list: D014131:Trace Elements; D008628:Mercury