Analytical Sciences

Modified Babington Nebulizer for Inductively Coupled Plasma Atomic Emission Spectrometry

Hirofumi ISOYAMA,*  Tetsuo UCHIDA,** Takashi NAGASHIMA,* and Osamu OHIRA*

*Toki Municipal Institute of Ceramics, Hida 287-3, Hida-cho, Toki, Gifu 509-5403, Japan
**Department of Applied Chemistry, Nagoya Institute of Technology, Gokiso-cho, Showa, Nagoya, Aichi 466-8555, Japan

A PTFE Babington nebulizer equipped with a hood was investigated for inductively coupled plasma atomic emission spectrometry in conjunction with a PTFE cyclone chamber, in order to nebulize various sample solutions containing high salts, hydrofluoric acid and/or suspended solid. A hood of 3 mmφ (nozzle side) - 5 mmφ (outlet side) and 6 mm in length gave a comparable or higher sensitivity compared to a system with a commercially available concentric nebulizer and a glass cyclone chamber. Moreover, the present nebulizer was fully interchangeable with a concentric one at normal argon pressure, attaining sufficient stability, a short wash-out time and good nebulizing of high matrices solutions. The present system was successfully applied to the determination of trace impurities in highly pure silica powders.

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