Determination of osmium by laser-induced fluorescence in a graphite furnace in combination with an intensified charge coupled device

• Laser-induced fluorescence in a graphite furnace with an intensified diode array is used for determining ultratrace osmium. Fluorescence spectra of osmium were investigated in a wide spectral range for five excitation transitions from the ground state. The optimum wavelengths of excitation and fluorescence were selected; the limit of detection of osmium in aqueous solutions is 50 pg.

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)

NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Keyword

atomic-absorption spectrometry

Publication and Content Type

ref (subject category)

art (subject category)