Detection of iodine-129 by laser-induced fluorescence spectrometry

Journal Article · Fri May 01 04:00:00 EDT 1981 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00229a007· OSTI ID:6508272

Goles, R W; Fukuda, R C; Cole, M W; Brauer, F P

Isotopically specific fluorescence detection of elemental iodine-129 has been investigated with a broad-band dye laser system. The intracavity spoiling phenomenon was utilized in this investigation to achieve isotopic specificity and to effect a modulated fluorescence signal. This rugged laser-based analytical system was found to exhibit a conventional linear relationship between signal level and analyte concentration, although laser-based instabilities limited detection limits of this approach to concentrations greater than 10/sup 10/ molecules/cm/sup 3/. Fluorescence measurements were also accomplished by direct single frequency excitation of /sup 129/I/sub 2/. This method of excitation exhibited a fluorescence detection limit of 2 x 10/sup 9/ molecules/cm/sup 3/ and proved to be more sensitive than the broad-band approach.

• Research Organization: Pacific Northwest Lab., Richland, WA
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6508272
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 53:6; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400104* -- Spectral Procedures-- (-1987)
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
DYE LASERS
EMISSION SPECTROSCOPY
FLUORESCENCE SPECTROSCOPY
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
IODINE 129
IODINE ISOTOPES
ISOTOPES
LASER SPECTROSCOPY
LASERS
NUCLEI
ODD-EVEN NUCLEI
RADIOISOTOPES
SENSITIVITY
SPECTROSCOPY
YEARS LIVING RADIOISOTOPES