Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Determination of Sulfur in Steels by Radiochemical Neutron Activation Analysis With Liquid Scintillation Counting

Published

Author(s)

Rick L. Paul

Abstract

A method has been developed for determination of low-level sulfur in steels by radiochemical neutron activation analysis. During sample irradiation, 35S is produced by the 34S(n,g)35S reaction. Irradiated steels are mixed with sulfur carrier and dissolved in HCl/HNO3. Sulfur is reduced to H2S by reaction with Hl/H3PO2/HCl. The evolved H2S is absorbed in dilute NaOH, which is mixed with scintillation cocktail for measurement of 35S by liquid scintillation counting. Sulfur carrier yield is determined by iodometric titration. Chlorine is also determined by RNAA in order to correct for 35S produced via the 35Cl(n,p)35S reaction. Sulfur has been determined down to 5 mg/kg in ultra-high-purity iron using this method.
Citation
Journal of Radioanalytical and Nuclear Chemistry
Volume
276
Issue
1

Keywords

activation analysis, neutrons, radiochemistry, steels, sulfur

Citation

Paul, R. (2008), Determination of Sulfur in Steels by Radiochemical Neutron Activation Analysis With Liquid Scintillation Counting, Journal of Radioanalytical and Nuclear Chemistry (Accessed May 28, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created April 1, 2008, Updated March 29, 2017