Analytical chemistry in nano- and microspace confined by ice

2016 Fiscal Year Final Research Report

• Project/Area Number: 25248034
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Analytical chemistry
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Okada Tetsuo 東京工業大学, 理学院, 教授 (20183030)
• Co-Investigator(Kenkyū-buntansha): 大塚 拓洋 東京工業大学, 理工学研究科, 助教 (20280993) ; 半田 友衣子 国立研究開発法人産業技術総合研究所, その他部局等, 研究員 (20586599) ; 火原 彰秀 東京工業大学, 理工学研究科, 准教授 (30312995) ; 原田 誠 東京工業大学, 理工学研究科, 助教 (60313326) ; 山本 佳孝 国立研究開発法人産業技術総合研究所, その他部局等, 研究員 (80358283)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 氷 / 凍結 / 液相空間 / アイスクロマトグラフィー

Outline of Final Research Achievements

In this project, we have developed novel methods based on the functionality and have revealed phenomena related to freezing of aqueous solutions; (1) size control of grain boundary channels and application to resolution of particle size; (2) particle counting; (3) chiral separation with frozen proline or leucine; (4) shear-flow ice chromatography; (5) 1000-fold sample enrichment for capillary electrophoresis; (6) enhanced sensitivity of voltammetry; (7) distribution of ions into the ice phase; (8) properties of liquid inclusion formed in frozen electrolyte systems; (9) X-ray fluorescence two- and three-dimensional imaging of frozen NaCl solution containing transition metal ions; (10) hydration of ions in frozen systems: (11) enhanced kinetics by freezing and its dependence on the size of a liquid phase.

Free Research Field

分析化学