1. Graduate
School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
2. Center
for Analytical Instrumentation, Chiba University, 1-33 Yayoi-cho,
Inage-ku, Chiba 263-8522, Japan
3. Temko Corporation, 4-27-4 Honcho, Nakano, Tokyo 164-0012, Japan
4. Faculty
of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand