An analyst attempts to determine strontium with an atomic absorption instrument equipped with a nitrous oxide-acetylene burner, but the sensitivity associated with the 460.7nm atomic resonance line is not satisfactory. suggest at least three things that might be tried to increase sensitivity.
(a) employ a higher temperature flame (oxyacetylene).
(b) use a solvent that contains ethanol or another organic substance.
(c) add a releasing agent, a protective agent, or an ionization suppressor.