1. Department of Chemistry
and Soil Chemistry, University of Navarra, 31080 Pamplona, Spain
2. R&D TAI Roullier Group, Poligono Arazuri-Orkoien, 31160 Orkoien, Spain
3. Department of Agriculture
and Plant Physiology, Public University of Navarra, 31006 Pamplona, Spain
4. Department of Physical
Chemistry, University of Vigo, 36200 Vigo, Spain