Cold-vapor mercury atomic absorption spectrometry: HCl as the cause of the double peak phenomenon.
An investigation has been made on the intermittent second peak that occurs in cold-vapor mercury atomic absorption spectrometry. Evidence that this peak is due to hydrogen chloride gas is presented. Analytical determination of mercury should therefore not include this peak, and a means to suppress or eliminate it, using glass wool adsorption between the reaction vessel and the spectrometer, is suggested.
Department of Chemistry, Carleton University, Ottawa, ON, Canada.
R S
RS
Daniels
D C
DC
Wigfield
D006851:Hydrochloric Acid; D008628:Mercury / Q000032:analysis*; D013054:Spectrophotometry, Atomic; D014835:Volatilization
D008628:Mercury; D006851:Hydrochloric Acid