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Science 11 October 1963:
Vol. 142. no. 3589, pp. 236 - 237
DOI: 10.1126/science.142.3589.236
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Articles

Spectroscopic Ultramicroanalysis with a Laser

Robert C. Rosan 1, Mary K. Healy 1, and William F. McNary Jr. 1

1 Departments of Biochemistry, Pathology, and Anatomy, Boston University Medical Center, Boston, Massachusetts

A microbeam probe capable of vaporizing many biological materials is formed by focusing a conventional laser through a microscope objective. The elemental gases which are excited by this demagnified spot are raised to emission levels when sparked between carbon electrodes. Elemental analysis is then performed on the excited material by conventional spectroscopy. The method is simple and rapid. Simultaneous analysis of multiple elements is practical.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Lasers.
A. L. Schawlow (1965)
Science 149, 13-22
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Science. ISSN 0036-8075 (print), 1095-9203 (online)