Determination of the temperature of the atomic vapor produced by a mini-massmann carbon rod atomizer and by a west-type carbon filament atomizer using atomic absorption spectrometry

Vaporization and atomization of samples with a carbon filament atomizer

“…Thus, at a surface with a temperature T and containing ns atoms in the surface layer, there will be nse~E/RT atoms possessing sufficient energy to leave the surface. If vaporization only occurs from the surface layer, then the rate of vaporization is proportional to this number, so that = -Cnae-B>RT (4) where C is a constant of proportionality, and the negative sign is introduced to indicate that vaporization causes a reduction in ns. The sampling area of a typical filament atom reservoir, e.g., the carbon filament, is ca.…”

Analysis of petroleum for trace metals. Determination of trace quantities of beryllium in petroleum and petroleum products by heated vaporization atomic absorption

“…Several other reactions appear to have analytical potential (7, [14][15][16][17] vide the basis for analytical applications not possible with luminol.…”

“…Heated vaporization atomic absorption (HVAA) has been applied to the direct determination of several metals at trace levels in petroleum (15)(16)(17)(18). The direct determination of manganese at the 10 ng/g level in petroleum using HVAA has been recently reported (19).…”

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“…При исследованиях воздействия факторов массопереноса на аналитический сигнал эффективную температуру газа при нагреве атомизатора измеряли по инверсии излучения линии натрия [126], а также путем последовательного измерения атомной абсорбции на двух линиях одного элемента, соответствующих переходам с разных нижних подуровней. В качестве термометрических использовали пары линий элементов разной летучести: In, Ga, Pb, Sn, Fe и Ni в излучении ламп с линейчатым спектром [220][221][222][223][224][225][226]. Для оценки кинетики нагрева газа в печи с коллектором (рис.…”