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Soil pH and Organic Matter

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An inert gas is bubbled through a 5 mL water sample contained in a specially-designed purging chamber at ambient temperature. The purgeables are efficiently transferred from the aqueous phase to the vapor phase. The vapor is swept through a sorbent trap where the purgeables are trapped. After purging is completed, the trap is heated and backflushed with the inert gas to desorb the purgeables onto a gas chromatographic column. The gas chromatograph is temperature programmed to separate the purgeables which are then detected with a mass spectrometer

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Effect of Al compounds on soil pH and bioavailability of Al in two acid soils

Dynamic changes in soil physico-chemical properties with the application of inorganic fertilizers
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