Solid-phase extraction microfluidic devices for matrix removal in trace element assay of actinide materials

Gao, Jun; Manard, Benjamin T.; Castro, Alonso; Montoya, Dennis Patrick; Xu, N.; Chamberlin, Robert W.

doi:10.1016/j.talanta.2017.01.080

Cited by 30 publications

(17 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This has also been reported in ICP-OES studies in which separation of the uranium matrix must first be employed. 19,20 As such, the REEs here doped into the U matrix at higher concentrations in the range of 1% weight/ weight to 20%. trend lines.…”

Section: Response Curves Of the Rare Earth Elements In Uranium Mixturesmentioning

confidence: 94%

Analysis of Rare Earth Elements in Uranium Using Handheld Laser-Induced Breakdown Spectroscopy (HH LIBS)

2018

Self Cite

View full text Add to dashboard Cite

A portable handheld laser-induced breakdown spectroscopy (HH LIBS) instrument was evaluated as a rapid method to qualitatively analyze rare earth elements in a uranium oxide matrix. This research is motivated by the need for development of a method to perform rapid, at-line chemical analysis in a nuclear facility, particularly to provide a rapid first pass analysis to determine if additional actions or measurements are warranted. This will result in the minimization of handling and transport of radiological and nuclear material and subsequent exposure to their associated hazards. In this work, rare earth elements (Eu, Nd, and Yb) were quantitatively spiked into a uranium oxide powder and analyzed by the HH LIBS instrumentation. This method demonstrates the ability to rapidly identify elemental constituents in sub-percent levels in a uranium matrix. Preliminary limits of detection (LODs) were determined with values on the order of hundredths of a percent. Validity of this methodology was explored by employing a National Institute of Standards and Technology (NIST) standard reference materials (SRM) 610 and 612 (Trace Elements in Glass). It was determined that the HH LIBS method was able to clearly discern the rare earths elements of interest in the glass or uranium matrices.

show abstract

Section: Response Curves Of the Rare Earth Elements In Uranium Mixturesmentioning

confidence: 94%

Analysis of Rare Earth Elements in Uranium Using Handheld Laser-Induced Breakdown Spectroscopy (HH LIBS)

2018

Self Cite

View full text Add to dashboard Cite

show abstract

“…20,21 Gao et al investigated adopting the uranium matrix removal method in a microfluidic format in which a 20 mL column was constructed on a microfluidic chip, in comparison to the traditional 10 mL column. 22 In this instance, the small size (< 18 mm width) columns were able to effectively separate uranium matrices with only 5 mg of sample (uranium) with efficient recovery of the trace impurities. Recent efforts by Wylie et al 21 and subsequently Quarles et al 23 have focused on automation of the uranium matrix removal methodology.…”

Section: Introductionmentioning

confidence: 91%

Evaluation and Specifications for In-Line Uranium Separations Using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) Detection for Trace Elemental Analysis

Manard

Metzger

Quarles³

et al. 2019

Appl Spectrosc

Self Cite

View full text Add to dashboard Cite

Automated introduction platforms integrated with inductively coupled plasma optical emission spectroscopy (ICP-OES) systems are continuously being improved. Expanding on the introduction systems, a newly developed automated ion chromatography system was explored for performing rapid in-line separations coupled to ICP-OES for the detection of trace elements in uranium. Trace elements are separated from a uranium material and the analytes are directed into the ICP-OES for subsequent detection. Detection parameters such as exposure time frequency, wavelength selection, and settling times were explored to gain insight on optimal detection schemes for in-line trace elemental analysis. The methodology was applied in the analysis of a uranium oxide (U3O8) certified reference material, CRM-124. It was found here that the sensitivity and uncertainty of the technique are greatly affected by how the ICP-OES is employed to collect data. Overall it was determined that faster exposure replicates can provide greater peak resolution with higher fidelity measurements but are limited with respect to the total analysis time (i.e., limited in detection timely separations). Zeta scores, which combine accuracy and uncertainty of certified values and experimental values, were used to validate the ICP-OES modes of operation.

show abstract

“…Various resins such as TRU (TRansUanium) and UTEVA (Uranium and TEtraValents Actinides) are used to separate trace elements from uranium matrices [17][18][19][20][21], but these extraction resins do not separate the individual REEs from each other. Ion chromatography has been used to separate actinides and uranium fission products since the 1980s, and subsequently has been applied to REEs separations in environmental samples and uranium material such as nuclear fuel or irradiated material [14,[22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Rare Earth Element Determination in Uranium Ore Concentrates Using Online and Offline Chromatography Coupled to ICP-MS

et al. 2020

Self Cite

View full text Add to dashboard Cite

The determination of trace elements, particularly rare earth elements, in uranium ore concentrates (UOCs) is important as the pattern can be indictive ore characteristics. Presented here is a methodology for accurately quantifying rare earth elements (REE) in UOCs. To improve the measurement uncertainty, isotope dilution mass spectrometry (IDMS) was utilized over other quantification techniques such as external calibration or standard addition. The isotopic determinations were measured by inductively coupled plasma-mass spectrometry (ICP-MS). To obtain high-fidelity isotopic measurements, separation of the REE from the uranium matrix was achieved by high-performance ion chromatography (HPIC), reducing the isobaric interferences. After separation, the target analytes were analyzed in two different modalities. For high precision analysis, the separated analytes were collected and measured by ICP-MS in an “offline” fashion. For a rapid approach, the separated analytes were sent directly into an ICP-MS for “online” analysis. These methods have been demonstrated to accurately quantify the REE content in a well-characterized UOC sample.

show abstract

Solid-phase extraction microfluidic devices for matrix removal in trace element assay of actinide materials

Cited by 30 publications

References 18 publications

Analysis of Rare Earth Elements in Uranium Using Handheld Laser-Induced Breakdown Spectroscopy (HH LIBS)

Analysis of Rare Earth Elements in Uranium Using Handheld Laser-Induced Breakdown Spectroscopy (HH LIBS)

Evaluation and Specifications for In-Line Uranium Separations Using Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) Detection for Trace Elemental Analysis

Rare Earth Element Determination in Uranium Ore Concentrates Using Online and Offline Chromatography Coupled to ICP-MS

Contact Info

Product

Resources

About