Norman Lee

University of Massachusetts Lowell

Department of Chemistry

Ryan Research Group






Aluminum, being the most abundant metallic element, is extremely neurotoxic, especially to children. Humic materials can greatly alter mobilization and speciation of aluminum depending on pH. This study focuses on Al-Fulvic Acid complexes using nuclear magnetic resonance at pH 3 to 5, aluminum ion concentration 20 to 150 mg/L and fulvic acid concentrations from 100 to 5000 mg/L. Metal speciation models (MINTEQ & GEOCHEM ) are also incorporated to explore aluminum speciation.




04-2004 UMass Lowell Student Research Symposium (Poster)  
03-2004 Humic Substance Seminar VII (Presentation) Powerpoint
04-2003 UMass Lowell Student Research Symposium (Poster)  
03-2003 Pittsburgh Conference (Poster)  
08-2002 ACS Boston Geochemistry Division (Presentation) Powerpoint
07-2002 Humic Substance Seminar VI (Presentation)  
07-2002 20th IHSS Conference  
04-2002 UMass Lowell Student Research Symposium (Poster)  
03-2001 Humic Substance Seminar V  




Lee, N.C.Y., Ryan, D.K. and Rajesh, G. (2005)  Quantitative Analysis of Aluminum and Soil Fulvic Acid Complexes by Solution State Aluminum-27 Nuclear Magnetic Resonance Spectroscopy.  In: Humic Substances: Molecular Details and Applications in Land and Water Conservation, Ghabbour E. and Davies G (eds.), Taylor & Francis.


Lee, N.C.Y. and  Ryan, D.K. (2003) Study of Fulvic-Aluminum(III) Ion Complexes By 27Al Solution NMR.  In: Humic Substances: Nature's Most Versatile Materials, Ghabbour, E. and Davies, G. (eds.), Taylor & Francis.