title: Measurement of femtogram quantities of trace elements using an X-ray microprobe.
authors.forename: R D
authors.initials: RD
authors.lastname: Giauque
authors.forename: A C
authors.initials: AC
authors.lastname: Thompson
authors.forename: J H
authors.initials: JH
authors.lastname: Underwood
authors.forename: Y
authors.initials: Y
authors.lastname: Wu
authors.forename: K W
authors.initials: KW
authors.lastname: Jones
authors.forename: M L
authors.initials: ML
authors.lastname: Rivers
mesh_terms: D014131:Trace Elements / Q000032:analysis*; D014961:X-Ray Diffraction
chemical_list: D014131:Trace Elements