Authors: Crain, Jeffrey S.¹; Mikesell, Barbara L.²

Source: Applied Spectroscopy, Volume 46, Issue 10, Pages 1447-1592 (October 1992) , pp. 1498-1502(5)

Publisher: Society for Applied Spectroscopy

Abstract:

Inductively coupled plasma-mass spectrometry (ICP-MS) was used to measure ng/L quantities of uranium in solution. Pneumatic nebulization and ultrasonic nebulization were compared. The spectral integration period was varied to study the effects of counting statistics. Analyte detection at m/z 238 was found to be blank limited. Under optimal conditions (i.e., with the use of ultrasonic nebulization and an 11-s integration period per m/z), uranium detection limits (3σ) at m/z 234 (not blank limited) were found to be 0.1 ng/L in 18-MΩ water. The uranium detection limit at m/z 234 was 0.5 ng/L when a 2.5-g/L NaNO₃ solution was nebulized. Normalized instrument response for uranium in 18-MΩ water agreed well with that in 2.5-g/L NaNO_3.

Keywords: Inductively coupled plasma-mass spectrometry; Trace actinide measurements; Wastewater analysis

Document Type: Research article

DOI: http://dx.doi.org/10.1366/000370292789619278

Affiliations: 1: Analytical Chemistry Group, Chemical and Laser Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Mail Stop G740, Los Alamos, New Mexico 87545; present address: Argonne National Laboratory—CMT/200, 9700 South Cass Avenue, Argonne, IL 60439-4831 2: Analytical Chemistry Group, Chemical and Laser Sciences Division, Los Alamos National Laboratory, P.O. Box 1663, Mail Stop G740, Los Alamos, New Mexico 87545

Publication date: 1992-10-01

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