ポスター発表
- 第2日 5月16日（水） ポスター会場
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2P-54（3B-O1-M-1030） PDF
エアロミセルを用いた液体試料の直接導入による極微量成分高感度検出
In conventional mass spectrometry of liquid sample, there is a limit of sensitivity inherent to their technical principles. In this study, we developed a novel technique to make liquid samples introduce directly into mass spectrometer with a form of “aeromicelle”. Aeromicelles are particles made of liquid and surface-covering surfactants, which structure was found to suppress volatilization of liquid even in vacuum. We generated aeromicelles by spraying water/surfactant mixture containing trace amount of CsCl, and analyzed the aeromicelles with an aerosol time-of-fright mass spectrometer (ATOFMS). We detected both surfactant and Cs ions in the same particles even under the condition that Cs was only a few amol (10-18mol) or less in each aeromicelles.