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- W2014593873 abstract "Abstract Interferences in the analysis of acetic acid, pyrosphosphate and acid oxalate extracts of soils for cadmium, cobalt, copper, nickel and lead can be overcome by extraction with dithizone in chloroform. Treatment of the extract with hydroxylammonium chloride to reduce iron(III) to iron(II) increases the percentage recovery by up to 25%. Complete recovery of the metal—dithizone complexes is ensured by using two extractions from the aqueous phase at pH 8.5 and 9.5. The metals are determined by direct injections of aliquots of the organic solution into the graphite furnace. The detection limits obtained are (in μg cm-3 of the extract): Cd, 0.001; Cu, 0.05; Co, 0.004; Ni, 0.02; Pb, 0.02." @default.
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- W2014593873 date "1979-05-01" @default.
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- W2014593873 title "Determination of cadmium, cobalt, copper, nickel and lead in soil extracts by dithizone extraction and atomic absorption spectrometry with electrothermal atomization" @default.
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- W2014593873 doi "https://doi.org/10.1016/s0003-2670(01)85015-7" @default.
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