Abstract
A trioctylphosphine oxide (TOPO) coated tungsten probe has been prepared and used for the determination of Bi and the μg/g level in copper alloy and lead. Bismuth is preconcentrated on the probe which is placed in a graphite-cup furnace for AA determination of bismuth. The method has good sensitivity and minimises analysis time. Microgram per gram levels of Bi can be determined with good precision and accuracy.
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