title: A sensitive atomic fluorescence system for metals in biological systems.
mesh_terms: D002256:Carbonic Anhydrases / Q000032:analysis; D004247:DNA; D012321:DNA-Directed RNA Polymerases / Q000032:analysis; D004926:Escherichia coli / Q000201:enzymology; D008832:Microchemistry; D013050:Spectrometry, Fluorescence / Q000295:instrumentation*; D014131:Trace Elements / Q000032:analysis*; D015032:Zinc / Q000032:analysis
chemical_list: D014131:Trace Elements; D004247:DNA; D012321:DNA-Directed RNA Polymerases; D002256:Carbonic Anhydrases; D015032:Zinc