Spectrochemical determination of trace bismuth and lead in iron-base and high-temperature superalloys.
A method is presented for determination of lead and bismuth in steels and superalloys, based on co-precipitation with manganese dioxide followed by optical-emission or atomic-absorption measurements. The limit of determination is about 0.0001% and the relative standard deviation is 4% at the 0.002% level.
Vassilaros
G L
GL
Colt Industries Crucible Inc., Materials Research Center P.O. Box 88, Pittsburgh, Pennsylvania 15230, U.S.A.