Abstract

A method is described for the determination of the percentage of Hg-202 present in small samples of mercury. An electrodeless discharge tube containing Hg-202 is used as a source of the Hg-202 hyperfine component of the 2537-A resonance line of mercury. By determining the absorbance of this component by mercury vapor, the quantity of the isotope present in the vapor can be determined. The analyses of samples of mercury containing various percentages of Hg-202 agree with values obtained by mass spectrometric methods to within two percent. The method has the advantage over the mass spectrometer of requiring very much smaller samples. Furthermore, contamination from “hangup” of previous samples is avoided. Through the use of other isotopic sources it is shown that the method could be extended to the analysis of the remaining isotopes of mercury.

© 1955 Optical Society of America

Isotope shift of 47-day ²⁰³Hg†

O. Redi and H. H. Stroke
J. Opt. Soc. Am. 65(1) 1-5 (1975)

Hyperfine Structure and Isotope Shifts in the 2537-Å Line of Mercury by a New Interferometric Method

Walter G. Schweitzer
J. Opt. Soc. Am. 53(9) 1055-1072 (1963)

Hyperfine-Structure Separations, Isotope Shifts, and Nuclear Magnetic Moments of the Radioactive Isotopes Tl¹⁹⁹, Tl²⁰⁰, Tl²⁰¹, Tl²⁰², and Tl²⁰⁴

R. J. Hull and H. H. Stroke
J. Opt. Soc. Am. 51(11) 1203-1212 (1961)

Isotope shift of 3 × 10⁵-yr ²⁰²Pb in the 6p² ³P₀−6p7s ³P1° 283.3-nm resonance line

F. A. Moscatelli, O. Redi, H. H. Stroke, R. L. Wiggins, and R. A. Naumann
J. Opt. Soc. Am. 73(2) 156-159 (1983)

Raman Spectroscopy of Gases

H. L. Welsh, E. J. Stansbury, J. Romanko, and T. Feldman
J. Opt. Soc. Am. 45(5) 338-343 (1955)