1. Dep. of Agricultural & Environ. Sciences; Tennessee State Univ.; 3500 John A. Merritt Blvd. Nashville TN 37209
2. Biosystems Eng. & Soil Science Dep.; Univ. of Tennessee Knoxville; 2506 E.J. Chapman Dr. Knoxville TN 37996
3. PSL Research University Chimie ParisTech - CNRS Institut de Recherche de Chimie Paris; 75005 Paris France