Evaluation of a Glass Frit Nebulizer for Use in Atomic Absorption Spectrophotometry

Abstract

A glass frit nebulizer has been designed and constructed specifically for use in flame atomic absorption spectroscopy. Its performance has been compared with that of conventional nebulizers using normal flame conditions. The performance level depends strongly on the pore size of the glass frit used. A fine frit is capable of operation at efficiencies close to 100% for low solution introduction rates. The noise level of the absorption signal when the fine glass frit was used was considerably less than that measured for the conventional nebulizer. The use of glass frits with larger pore sizes does not produce efficiency or noise data quite as good as those measured for the fine frit, but does offer extended operating ranges.

Keywords

Atomic absorption spectroscopy Flame spectroscopy

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