A general spectrochemical method for determining trace amounts of lead in a variety of iron- and nickel-base alloys is presented The lead is concentrated by co-precipitation with strontium as sulfate The internal standaid, bismuth sulfate, is added to the dried precipitate The mixture is excited using the dc arc. The coefficient of variation at the 4 ppm level is 14%, and 13% at 40 ppm
Get full access to this article
View all access options for this article.
References
1.
Symposium on Spectrochemical Analysis for Trace Elements, AM. SOC. TESTING MATER., SPEC. TECH. PUBL.221, 23–36 (1958)
2.
SandellE. B., Colorimetric Determination of Traces of Metals, Interscience Publishers, Inc., New York, 1959, 3rd ed., pp. 555–583
3.
HillebrandW. F.LundellG. E. F.HoffmanJ. I., and BrightH. A., Applied Inorganic Analysis, John Wiley and Sons, New York, 1953, 2nd ed., pp. 224–229
4.
RosenquistI. T., AM. J. SCI.240, 356 (1942)
5.
SandellE. B., Colorimetric Determination of Traces of Metals, Interscience Publishers, Inc., New York, 1959, 3rd ed., pp. 29–30
6.
HahnO., Applied Radiochemistry, Cornell Univ, Press, Ithaca, 1936, p. 105
