Determination of uranium by flow injection inductively coupled plasma mass spectrometry

Aldstadt, Joseph H.; Kuo, Jacqueline M.; Smith, L.L.; Erickson, Mitchell D.

doi:10.1016/0003-2670(95)00502-1

Cited by 66 publications

(41 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the uranium measurement, the typical detection limit is in the vicinity of 0.02 ng/mL 9 and is sometimes as low as 0.3 pg/mL. 10 Determinations of the isotope ratio of uranium in contaminated soil samples using ICP-M S have been reported very recently. [11][12][13] ICP-MS instruments are com mercially available, but the high resolution required for this application m eans that the equipment remains both expensive and complicated to use.…”

Section: Introductionmentioning

confidence: 99%

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

et al. 2003

View full text Add to dashboard Cite

Inductively coupled plasma cavity ringdown spectroscopy (ICP-CRDS) is applied to isotopic measurements of uranium. We have successfully obtained the isotopic-resolved spectra of uranium at three different atomic/ionic transition lines, 286.57, 358.49, and 409.01 nm. Of the three lines, the largest isotope shift of approximately 9 pm was measured at the 286.57 ionic line. Isotopic-resolved spectra were recorded in ratio of 1:1 (235U/238U, 2.5 micrograms/mL) and at the natural abundance ratio of 0.714% (235U/238U, 1.25 micrograms/mL 235U). The smallest measurable isotope shift of approximately 3 pm was determined for the 409.01 nm ion spectral line. Detection limits (DL) were obtained under optimized ICP operating conditions to be in the range of 70-150 ng/mL, except for the 238U component of the 286.57 nm line (300 ng/mL). This latter result was determined to be due to a strong, previously unreported, absorption interference from the argon plasma. The 235U isotope component (DL 70 ng/mL) was found to be unaffected. This work demonstrates the applicability of ICP-CRDS for uranium isotopic measurements. The potential of development of a field-deployable, on-line uranium isotope monitor using plasma-CRDS is discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

et al. 2003

View full text Add to dashboard Cite

show abstract

“…Extraction of uranium from surface or ground water has recently become of interest [1,2,3,4]. It is known to be leached out of rock and to be present in water so its concentration varies in the range of 0.1-10 µg L -1 [5].…”

Section: Introductionmentioning

confidence: 99%

Solid-phase extraction–spectrophotometric determination of uranium(VI) in natural waters

2003

View full text Add to dashboard Cite

A method for the extraction and determination of uranyl ion in natural waters using octadecyl bonded silica membrane disks modified with piroxicam and spectrophotometry with arsenazo(III) is proposed. The perconcentration step was studied with regard to experimental parameters such as amount of extractant, type and amount of eluent, pH, flow rates and tolerance limit of diverse ions on the recovery of uranyl ion. The limit of detection of the proposed method is 0.4 micro g L(-1) of uranyl. The method was applied to the recovery of uranyl from different water samples.

show abstract

“…However, this limit may not protect specifically sensitive populations, such as children and people with predispositions for hypertension or osteoporosis [2,3]. Common analytical techniques involve ICP-MS [4] and radio-metric analyses [5]. However, these methods are neither accessible nor suitable for daily field work and tests.…”

Section: Introductionmentioning

confidence: 99%

Bis[2-(methacryloyloxy)ethyl] phosphate radiografted into track-etched PVDF for uranium (VI) determination by means of cathodic stripping voltammetry

Pinaeva

Dietz

Sheikhly

et al. 2019

Reactive and Functional Polymers

View full text Add to dashboard Cite

We report the radiation grafting of bis [2-(methacryloyloxy)ethyl] phosphate (B2MP) through electron-beam onto PVDF films and through swift heavy ions (SHI) irradiations into the pores of track-etched PVDF membranes. Radiolytically produced radicals were studied using EPR. To adapt the radiation grafting protocol inside the nanopores of track-etched membranes, the electron-beam irradiated films at varying monomer concentrations, doses and solvent mixtures were first studied. It was found that track-etched membranes, even after 1 hour of chemical treatment, do not require a post-etching irradiation to initiate free-radical polymerization of B2MP from remaining radiationinduced radicals. The presence of functional groups inside the nanopores of the membrane were examined using FTIR and XPS. After exposure of B2MPg-PVDF membranes to a uranyl solution, XPS was also exploited to evidence of O 2 UO 2+ 2 trapping inside the membrane nanoporosity by tracking the presence of U 4f peak. The B2MP-g-PVDF membranes were converted into electrodes by depositing 35 nm of gold on each side through a mask. Detection of ppb concentrations (from 20 to 100 ppb) of uranyl by B2MP-g-PVDF membrane electrodes was demonstrated by means of square wave cathodic stripping voltammetry (SW-CSV). The limit of detection (LOD) was estimated to be 17 ppb (3 σ / slope).

show abstract

Determination of uranium by flow injection inductively coupled plasma mass spectrometry

Cited by 66 publications

References 20 publications

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

Isotopic Measurements of Uranium Using Inductively Coupled Plasma Cavity Ringdown Spectroscopy

Solid-phase extraction–spectrophotometric determination of uranium(VI) in natural waters

Bis[2-(methacryloyloxy)ethyl] phosphate radiografted into track-etched PVDF for uranium (VI) determination by means of cathodic stripping voltammetry

Contact Info

Product

Resources

About