The graphite filter furnace: a new atomization concept for atomic spectroscopy

摘要: A new atomization concept for electrothermal atomic absorption spectroscopy (ETAAS) is proposed and discussed. The basic idea to form within part of an atomizer a large surface over which the collection fine particles sample be distributed, constrain vapor exit from that analytical zone. For amounts analyte are in range ordinary ETAAS, these techniques do not affect character release because area smaller than passage. However, when there excess matrix, this technique creates conditions matrix saturation impedes evaporation. This turn restricts concentration zone and, respectively, limits spectral background gas-phase chemical interferences. realized design graphite filter furnace. principle operation practical methods obtain advantages discussed compared, using experimental data.