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Title: A Study of the γ-Radiolysis of N,N-Didodecyl-N',N'-Dioctyldiglycolamide Using UHPLC-ESI-MS Analysis

Abstract

In this paper, solutions of N,N-didodecyl-N',N'-dioctyldiglycolamide in n-dodecane were subjected to γ-irradiation in the presence and absence of both an aqueous nitric acid phase and air sparging. The solutions were analyzed using ultra-high-performance liquid chromatography-electrospray ionization-mass spectrometry (UHPLC-ESI-MS) to determine the rates of radiolytic decay of the extractant as well as to identify radiolysis products. The DGA concentration decreased exponentially with increasing dose, and the measured degradation rate constants were uninfluenced by the presence or absence of acidic aqueous phase, or by air sparging. Finally, the identified radiolysis products suggest that the bonds most vulnerable to radiolytic attack are those in the diglycolamide center of these molecules and not in the side chains.

Authors:
 [1];  [1];  [1];  [1];  [2];  [2];  [2];  [2]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States)
  2. Forschungszentrum Julich (Germany)
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States); Forschungszentrum Juelich (Germany)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5); European Commission (EC)
OSTI Identifier:
1367875
Report Number(s):
INL/JOU-15-37316
Journal ID: ISSN 0736-6299
Grant/Contract Number:  
AC07-05ID14517; FP7-Fission-2012-323-282
Resource Type:
Accepted Manuscript
Journal Name:
Solvent Extraction and Ion Exchange
Additional Journal Information:
Journal Volume: 34; Journal Issue: 5; Journal ID: ISSN 0736-6299
Publisher:
Taylor and Francis
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY; diglycolamide; UHPLC-MS; radiolysis; D3DODGA; radiation chemistry

Citation Formats

Roscioli-Johnson, Kristyn M., Zarzana, Christopher A., Groenewold, Gary S., Mincher, Bruce J., Wilden, Andreas, Schmidt, Holger, Modolo, Giuseppe, and Santiago-Schübel, Beatrix. A Study of the γ-Radiolysis of N,N-Didodecyl-N',N'-Dioctyldiglycolamide Using UHPLC-ESI-MS Analysis. United States: N. p., 2016. Web. doi:10.1080/07366299.2016.1212540.
Roscioli-Johnson, Kristyn M., Zarzana, Christopher A., Groenewold, Gary S., Mincher, Bruce J., Wilden, Andreas, Schmidt, Holger, Modolo, Giuseppe, & Santiago-Schübel, Beatrix. A Study of the γ-Radiolysis of N,N-Didodecyl-N',N'-Dioctyldiglycolamide Using UHPLC-ESI-MS Analysis. United States. doi:10.1080/07366299.2016.1212540.
Roscioli-Johnson, Kristyn M., Zarzana, Christopher A., Groenewold, Gary S., Mincher, Bruce J., Wilden, Andreas, Schmidt, Holger, Modolo, Giuseppe, and Santiago-Schübel, Beatrix. Tue . "A Study of the γ-Radiolysis of N,N-Didodecyl-N',N'-Dioctyldiglycolamide Using UHPLC-ESI-MS Analysis". United States. doi:10.1080/07366299.2016.1212540. https://www.osti.gov/servlets/purl/1367875.
@article{osti_1367875,
title = {A Study of the γ-Radiolysis of N,N-Didodecyl-N',N'-Dioctyldiglycolamide Using UHPLC-ESI-MS Analysis},
author = {Roscioli-Johnson, Kristyn M. and Zarzana, Christopher A. and Groenewold, Gary S. and Mincher, Bruce J. and Wilden, Andreas and Schmidt, Holger and Modolo, Giuseppe and Santiago-Schübel, Beatrix},
abstractNote = {In this paper, solutions of N,N-didodecyl-N',N'-dioctyldiglycolamide in n-dodecane were subjected to γ-irradiation in the presence and absence of both an aqueous nitric acid phase and air sparging. The solutions were analyzed using ultra-high-performance liquid chromatography-electrospray ionization-mass spectrometry (UHPLC-ESI-MS) to determine the rates of radiolytic decay of the extractant as well as to identify radiolysis products. The DGA concentration decreased exponentially with increasing dose, and the measured degradation rate constants were uninfluenced by the presence or absence of acidic aqueous phase, or by air sparging. Finally, the identified radiolysis products suggest that the bonds most vulnerable to radiolytic attack are those in the diglycolamide center of these molecules and not in the side chains.},
doi = {10.1080/07366299.2016.1212540},
journal = {Solvent Extraction and Ion Exchange},
number = 5,
volume = 34,
place = {United States},
year = {2016},
month = {7}
}

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