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The extraction of barium ions by isooctane solutions of di-nonyl naphthalene sulfonic acid (HDNNS) and di-cyclohexano-18-crown-6 (DC18C6) from aqueous solutions of hydrochloric acid and sodium chloride has been investigated. The extraction and the associated back extraction results suggest that this barium complex is a suitable oil tracer for petroleum related applications, such as measurement of Residence Time Distribution (RTD) and oil carry-over to the gas outlet in multiphase separators and scrubbers

Development of an oil tracer labelled with137mBa

Development of an oil tracer labelled with^137mBa