FAD: Techniques

Contact Info

Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf
Spectrophotometry

Classification: Spectrophotometry -> atomic absorption -> electrothermal vaporization -> thermospray
Citations 1

'Flow Injection Thermospray Sample Deposition For Electrothermal-atomization Atomic Absorption Spectrometry', Spectrochim. Acta B, 1989 44(6) 571-579

"Flow Injection Thermospray Sample Deposition For Electrothermal-atomization Atomic Absorption Spectrometry"
Spectrochim. Acta B 1989 Volume 44, Issue 6 Pages 571-579
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$aus = 'P. C. Bank, M. T. C. de Loos-Vollebregt and L. de Galan'
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P. C. Bank, M. T. C. de Loos-Vollebregt and L. de Galan
Abstract: The flow injection thermospray introduction system described previously (Ibid., 1988, 43B, 983) has been modified to obtain more reproducible sample deposition on to the wall of a graphite-tube atomizer. Under optimum conditions, viz, a sample flow rate of 0.7 mL min-1, a thermospray vaporizer temperature of 300°C and a deposition temperature of 120°C in the graphite tube, the sensitivities for Ag, Al, As, Au, Cd, Co, Mn, Pb, Ru and V were identical with those obtained by conventional graphite-furnace AAS. The area of spray-deposited material formed on the wall of the graphite tube is independent of sample volume (unlike conventional manual injection), and thus the flow injection thermospray system can be used over wide analytical ranges. Solutions containing up to 2% of NaCl could be injected without plugging of the thermospray vaporizer capillary.
Aluminum Arsenic Gold Cadmium Cobalt Manganese Lead Rubidium Silver Vanadium Optimization Interface