エアロゾル研究
Online ISSN : 1881-543X
Print ISSN : 0912-2834
ISSN-L : 0912-2834
特集「エアロゾルプロセスによるナノ機能材料の合成とその制御」
静電噴霧法によるナノ粒子の合成および計測
Lenggoro Wuled奥山 喜久夫
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ジャーナル フリー

2005 年 20 巻 2 号 p. 116-122

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Electrospray (ES) technique is one of the few known schemes capable of atomizing a liquid into ultrafine droplets. By this method, a meniscus of conducting solution formed at the tip of a capillary tube becomes conical in shape when high voltage is applied between the tip and the counter electrode. Droplets are generated by the continuous breakup of a liquid jet at the apex of the cone. The most common use of ES has been as the ion source for mass spectrometry. This paper first reviews various applications of ES in nanoparticle synthesis. ES is also a tool to transfer inorganic or/and organic matters in a liquid into a gas-phase. In the present work, the size distribution of the generated aerosol was determined by a differential mobility analyzer (DMA) and a counter system. The results show that the ES-DMA system is a convenient and reliable tool for the rapid size determination of colloidal nanoparticles or water-soluble polymers, being capable of simultaneously measuring the mobility distribution and concentration of total residue present in the sample waters.

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© 2005 日本エアロゾル学会
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