A new design of graphite furnace for rapid cycle electrothermal atomisation-atomic-absorption spectrometry

摘要: The design and performance of a new furnace developed for electrothermal atomisation - atomic-absorption spectrometry is described. consists segmented graphite rod. Sample solutions may be atomised directly from the rod without prior drying pyrolysis, with result that time interval between sample injections reduced to <30 s. segmented-rod atomiser direct was investigated determination silver, gold, aluminium, bismuth, cadmium, chromium, copper, mercury, manganese, lead, vanadium zinc in complex matrices containing salts organic material. In all instances sensitivities comparable those associated conventional systems were achieved. coefficient variation ranged 4.0% cadmium 0.1 M nitric acid 9% gold 1% sodium chloride solution.