1. Department of Green Chemistry, School of Engineering Science, Lappeenranta-Lahti University of Technology LUT, Sammonkatu 12, FI-50130 Mikkeli, Finland
2. Department of Separation and Purification Technology, School of Engineering Science, Lappeenranta-Lahti University of Technology LUT, P.O. Box 20, FI-53851 Lappeenranta, Finland