Abstract
A biphasic extraction system (CCl4/KH2 PO4) has been developed for the simultaneous removal of elemental sulphur (S°) and sulphate from soil. For five soils the recovery of S° (recovered as both oxidised S and residual S°) ranged from 96 to 100% at zero time of incubation. Due to incorporation into the organic fraction, recoveries decreased to 76-88 % after 8 week's incubation. The extraction procedure can be used with either fresh or air-dry soil and is more effective in extracting residual SdE than existing, single solvent procedures.
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