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ID 47038
本文ファイル
著者
Ishizaka, Shoji 大学院理学研究科 広大研究者総覧
Yamauchi, Kunihiro
Kitamura, Noboru
キーワード
Laser trapping
Raman spectroscopy
aerosol
NDC
化学
抄録(英)
Noncontact levitation in air of single micrometer-sized water droplets containing ammonium sulfate was successful by a laser trapping technique. The trapping laser beam was also used simultaneously as an excitation light source for the Raman spectroscopy of trapped droplets. Raman scattering of the symmetric stretching vibration of the SO42− anion and the OH stretching vibrations of H2O were observed at 980 and 3420 cm−1, respectively. The intensity ratio of these two Raman peaks was linearly proportional to the ammonium sulfate concentration in water. Therefore, the in situ quantification of ammonium sulfate in single aerosol droplets was achieved by means of laser trapping and Raman spectroscopy. To the best of our knowledge, this study is the first experimental observation of the independence of ammonium sulfate concentrations of aerosol water droplets to those of the mother solutions under constant relative humidity conditions.
内容記述
This research was supported by JST, PRESTO and Grand-in-Aid for Scientific Research (A) (No. 23245015) from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan.
掲載誌名
Analytical Sciences
29巻
12号
開始ページ
1223
終了ページ
1226
出版年月日
2013-12
出版者
The Japan Society for Analytical Chemistry
ISSN
0910-6340
1348-2246
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
2013 © The Japan Society for Analytical Chemistry
関連情報URL
部局名
理学研究科