citrate-bicarbonate-dithionite method  search
UFCBD method (soils)
 DCB method (soils)
 dithionite-citrate-bicarbonate method
RTchemical analysis
 soils
 iron hydroxides
 iron oxides
 clay minerals
 methods
 sample preparation
 chemical dispersion
SNMethod of removing iron oxides and oxyhydroxides from soil materials.