Application of chemically modified probe-atomic absorption spectrometry (CMPAAS)-I. Determination of Bi in copper alloy and lead by trioctylphosphine oxide-coated tungsten probe-AAS.
A trioctylphosphine oxide (TOPO) coated tungsten probe has been prepared and used for the determination of Bi and the mug/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.
Bo-Xing
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X
Department of Chemistry, East China Normal University, Shanghai, 200062, China.
Ming-Neng
S
S
Chao-Biao
H
H
Yu-Zhi
F
F