HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by He, Z. Articles by Caliebe, W. A. Search for Related Content PubMed Articles by He, Z. Articles by Caliebe, W. A. GeoRef GeoRef Citation Agricola Articles by He, Z. Articles by Caliebe, W. A. Related Collections Phosphorus Soil Chemistry Animal Waste

SOIL CHEMISTRY NOTE

Distinction of Metal Species of Phytate by Solid-State Spectroscopic Techniques

^a USDA-ARS, New England Plant, Soil and Water Lab., Orono, ME 04469
^b Agriculture & Agri-Food Canada, Greenhouse & Processing Crops Research Ctr., Harrow, ON, N0R 1G0, Canada
^c Dep. of Chemistry and Biochemistry, Univ. of South Carolina, Columbia, SC 29208
^d National Synchrotron Light Source, Brookhaven National Lab., Upton, NY 11973

^* Corresponding author (zhongqi.he{at}ars.usda.gov)..

Solid-state ³¹P nuclear magnetic resonance (NMR) and x-ray absorption near edge structure (XANES) spectroscopies have provided knowledge on metal speciation of inorganic P. No effort has been made, however, to accurately assign speciated metal phytates (inositol hexaphosphoric acid salts) using these advanced techniques. Phytate is a predominant form of organic P in animal manure, soil, and other organic substances as each year 51 million Mg of phytate are formed in crops and fruits globally. Currently, the interactions and fate of phytate in the environment are poorly understood. Here we show the solid-state spectral characteristics of six metal phytates. Both spectra were affected by the metal species of the phytates, as significant differences were observed in the shape and position of spectra among the metal phytates. Reference spectra of these pure metal phytate compounds may help in identifying metal species of phytate in environmental samples by these advanced spectroscopic technologies.

Abbreviations: MAS, magic angle spinning • NMR, nuclear magnetic resonance • XANES, x-ray absorption near edge structure