Abstract

An emission spectrographic method is described to determine the concentrations of aluminum, cadmium, calcium, chromium, copper, iron, lead, magnesium, nickel, silicon, tin, and zinc in airborne dirt. A measured volume of air is drawn through a 1 in. filter paper. The filter is analyzed by a direct reading emission spectrograph using a push-up technique to introduce the sample into the analytical gap. Calculations and report writing are performed by a computer. Computer programs aid the data interpretation by annotating the results and by the preparation of summaries and graphs. The precision is approximately ±25% of the amount present at the 3 μg level. Analysis time is about 5 min/sample.

Spectrographic Determination of Trace Elements in 70/30 Brass and Admiralty Brass. Part I*

P. A. Leichtle
J. Opt. Soc. Am. 34(8) 454-463 (1944)

The Quantitative Spectrographic Analysis of the Rare Earth Elements*I. Determination of Samarium in NeodymiumII. Determination of Europium in Samarium

Velmer A. Fassel and Harley A. Wilhelm
J. Opt. Soc. Am. 38(6) 518-526 (1948)

The Quantitative Spectrographic Analysis of the Rare Earth Elements* III. Determination of Major Constituents in Complex Mixtures

Velmer A. Fassel
J. Opt. Soc. Am. 39(2) 187-193 (1949)

Spectrographic Determination of Halogens and Sulfur in Engine Deposits

W. O. Mansfield, J. C. Fuhrmeister, and D. L. Fry
J. Opt. Soc. Am. 41(6) 412-416 (1951)

The Spectrographic Determination of Small Amounts of Impurities in Magnesium Chloride*

Mabel F. Wilson
J. Opt. Soc. Am. 34(4) 229-233 (1944)