DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Assessing Gas-Phase Ion Reactivity of 50 Elements with NO and the Direct Application for 239Pu in Complex Matrices Using ICP-MS/MS

Journal Article · · Analytical Chemistry

Understanding the reactivity of metal cations with various reaction gases in ICP-MS/MS is important to determine the best gas to use for a given analyte/interference pair. In this study, nitric oxide (NO) was investigated as the reaction gas following previous experimental designs. The reactions with 50 elements were investigated to examine periodic trends in reactivity, validate theoretical modeling of reaction enthalpies as a method to screen reactant gases, and provide a baseline for potential in-line gas separation methods. ICP-MS/MS studies involving actinides are typically limited to Th, U and Pu, with analyses of Np and Am rarely reported in the literature. To date, only two previous methods have investigated the use of NO in ICP-MS/MS analyses. To showcase the utility of NO, a method was developed to measure 239Pu in the presence of environmental matrix constituent and other actinides, like what could be expected from post-detonation debris, with no chemical separation prior to analysis. 239Pu+ was reacted to form 239Pu16O+, eliminating interferences derived from the sample matrix by measuring 239Pu+ intensity at m/z = 255 (239Pu16O+). To validate NO for 238U1H+ interference removal in environmental matrices, standard reference materials were diluted to 1 mg per gram of solution and spiked to 0.05 pg/g of 239Pu and 1 µg/g 238U (Pu/U = 5 x 10-8). Measured 239Pu concentrations were within 6% of the spiked value. In conclusion, these results demonstrate that reliable 239Pu measurements can be made at levels relevant to nuclear forensics without the need for extensive chemical matrix separation prior to analysis.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
Office of the Deputy Assistant Secretary of Defense for Nuclear Matters; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2405078
Report Number(s):
PNNL-SA--191260
Journal Information:
Analytical Chemistry, Journal Name: Analytical Chemistry Journal Issue: 15 Vol. 96; ISSN 0003-2700
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (42)

Beneficial Ion/Molecule Reactions in Elemental Mass Spectrometry journal January 1997
Determination of long-lived actinides in soil leachates by inductively coupled plasma-mass spectrometry journal July 1995
Polyatomic interference removal using a collision reaction interface for plutonium determination in the femtogram range by quadrupole ICP-MS journal October 2015
In situ determination of 238Pu in the presence of uranium by triple quadrupole ICP-MS (ICP-QQQ-MS) journal August 2019
FTICR-MS study of the gas-phase thermochemistry of americium oxides journal August 2003
Reactions of Cu+(1S and 3D) with O2, CO, CO2, N2, NO, N2O, and NO2 studied by guided ion beam mass spectrometry journal March 1999
Inductively coupled plasma – Tandem mass spectrometry (ICP-MS/MS): A powerful and universal tool for the interference-free determination of (ultra)trace elements – A tutorial review journal September 2015
Gas-phase reactions of nitric oxide with atomic lanthanide cations: Room-temperature kinetics and periodicity in reactivity journal March 2006
High-precision measurement of U-Pu-Np-Am concentrations and isotope ratios in environmental reference materials by mass spectrometry journal October 2021
Gas-phase ion-molecule interactions in a collision reaction cell with triple quadrupole-inductively coupled plasma mass spectrometry: Investigations with N2O as the reaction gas journal December 2021
Utilizing metal cation reactions with carbonyl sulfide to remove isobaric interferences in tandem inductively coupled plasma mass spectrometry analyses journal September 2023
Determination of ultra-low level plutonium isotopes (239Pu, 240Pu) in environmental samples with high uranium journal September 2018
A new method for determining 236U/238U isotope ratios in environmental samples by means OF ICP-MS/MS journal January 2020
Determination of ultra-trace level plutonium isotopes in soil samples by triple-quadrupole inductively coupled plasma-mass spectrometry with mass-shift mode combined with UTEVA chromatographic separation journal November 2021
A novel strategy for Pu determination in water samples by automated separation in combination with direct ICP-MS/MS measurement journal September 2023
Chemical Resolution of Pu+ from U+ and Am+ Using a Band-Pass Reaction Cell Inductively Coupled Plasma Mass Spectrometer journal May 2004
Potential of Methyl Fluoride as a Universal Reaction Gas to Overcome Spectral Interference in the Determination of Ultratrace Concentrations of Metals in Biofluids Using Inductively Coupled Plasma-Tandem Mass Spectrometry journal July 2014
Pushing Limits of ICP–MS/MS for the Determination of Ultralow 236U/238U Isotope Ratios journal May 2020
Determination of Femtogram-Level Plutonium Isotopes in Environmental and Forensic Samples with High-Level Uranium Using Chemical Separation and ICP-MS/MS Measurement journal August 2019
Activation of CO2 by Actinide Cations (Th+, U+, Pu+, and Am+) as Studied by Guided Ion Beam and Triple Quadrupole Mass Spectrometry journal May 2022
Ligand Effects in Organometallic Thermochemistry: The Sequential Bond Energies of Ni(CO)x+ and Ni(N2)x+ (x = 1-4) and Ni(NO)x+ (x = 1-3) journal May 1995
Gas-Phase Oxidation Reactions of Neptunium and Plutonium Ions Investigated via Fourier Transform Ion Cyclotron Resonance Mass Spectrometry journal August 2002
Oxidation Studies of Dipositive Actinide Ions, An 2+ (An = Th, U, Np, Pu, Am) in the Gas Phase:  Synthesis and Characterization of the Isolated Uranyl, Neptunyl, and Plutonyl Ions UO 2 2+ (g), NpO 2 2+ (g), and PuO 2 2+ (g) journal March 2005
Nitric Oxide as an Electron Donor, an Atom Donor, an Atom Acceptor, and a Ligand in Reactions with Atomic Transition-Metal and Main-Group Cations in the Gas Phase journal December 2005
Assessment of plutonium measurement in the femtogram range by ICP-MS; correction from interfering polyatomic species journal January 2008
Accurate determination of S in organic matrices using isotope dilution ICP-MS/MS journal January 2013
Tandem ICP-mass spectrometry for Sr isotopic analysis without prior Rb/Sr separation journal January 2016
Potential energy surface for the reaction Sm + + CO 2 → SmO + + CO: guided ion beam and theoretical studies journal January 2017
Radionuclide analysis using collision–reaction cell ICP-MS technology: a review journal January 2020
A novel method for measuring ultra-trace levels of U and Th in Au, Pt, Ir, and W matrices using ICP-QQQ-MS employing an O2 reaction gas journal January 2020
Development of a single method for direct measurement of multiple radionuclides using ICP-MS/MS journal January 2023
f-Block reactions of metal cations with carbon dioxide studied by inductively coupled plasma tandem mass spectrometry journal January 2024
Rapid isotopic analysis of uranium, plutonium, and americium in post-detonation debris simulants by RIMS journal January 2023
Polyatomic interferences in plutonium determination in the femtogram range by double-focusing sector-field ICP-MS journal January 2011
Determination of ultratrace 129I in soil samples by Triple Quadrupole ICP-MS and its application to Fukushima soil samples journal January 2013
Determination of ultra-low 236U/238U isotope ratios by tandem quadrupole ICP-MS/MS journal January 2013
Reaction of Cr + , Mn + , Fe + , Co + , and Ni + with O 2 and N 2 O. Examination of the translational energy dependence of the cross sections of endothermic reactions journal March 1982
Bond energy of ThN + : A guided ion beam and quantum chemical investigation of the reactions of thorium cation with N 2 and NO journal July 2019
Gas‐Phase Ion‐Molecule Interactions in a Collision Reaction Cell with ICP‐MS / MS : Investigations with CO 2 as the Reaction Gas journal July 2022
FTICR/MS studies of gas-phase actinide ion reactions: fundamental chemical and physical properties of atomic and molecular actinide ions and neutrals journal May 2007
Classification of Chemical Elements in the Reaction Cell of ICP-MS Based on the Affinities with Sulfur, Oxygen, and Fluorine journal June 2018
Using CO2 Reactions to Achieve Mass-spectrometric Discrimination in Simultaneous Plutonium-isotope Speciation with Inductively Coupled Plasma–Tandem Mass Spectrometry journal July 2022