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Trace Element Speciation in Poultry Litter

^a Advanced Analytical Center for Environmental Sciences, Savannah River Ecology Laboratory, Univ. of Georgia, P.O. Drawer E, Aiken, SC 20903
^b Dep. of Crop and Soil Sciences, Univ. of Georgia, Athens, GA 30602
^c Dep. of Crop and Soil Environmental Science, Clemson Univ., Clemson, SC 29634
^d Dep. of Agronomy and Soils, Auburn Univ., Auburn, AL 36849

View larger version (16K): [in a new window]   Fig. 1. Ion chromatography–inductively coupled plasma–mass spectrometry (IC–ICP–MS) chromatogram of seven As species standards: 10 µg L-1 dimethylarsenic acid (DMA), As(III), monomethylarsenic acid (MMA), 3-amino-4-hydroxyphenylarsonic acid (3-AHPA), and 4-aminophyenlarsonic acid (p-ASA), and 50 µg L-1 As(V) and 3-nitro-4-hydroxyphenylarsonic acid (ROX).

View larger version (29K): [in a new window]   Fig. 2. Representative chromatograms for poultry litter (PL) water-soluble extraction (WSE) with (A) As(V) as the major species, (B) 3-nitro-4-hydroxyphenylarsonic acid (ROX) as the major species. (C) Sample in 2A after the strong cation exchange cartridge (SCX) column, and (D) sample in 2B after the SCX column.