Accuracy in the isotope dilution mass spectrometry of uranium in rubidium uranium sulphate Rb[sub 2]U(SO[sub 4])[sub 3]

Journal Article · Sat May 01 00:00:00 EDT 1993 · Analytical Letters; (United States)

DOI:https://doi.org/10.1080/00032719308019880· OSTI ID:6460736

Ramakumar, K L; Jeyakumar, S; Raman, V A; Gnanayyan, L; Rao, R; Saxena, M K; Kavimandan, V D; Jain, H C ^[1]

---

1. Bhabha Atomic Research Centre, Bombay (India)

Problems encountered in the determination of uranium in rubidium uranium sulphate (Rb[sub 2]U(SO[sub 4])[sub 3]) employing isotope dilution thermal ionization mass spectrometry (ID-TIMS) are discussed. The positive bias of 0.2 to 0.3% in the determination of uranium in Rb[sub 2]U(SO[sub 4])[sub 3] by ID-TIMS with respect to the stoichiometric composition has been resolved by modifying the chemical exchange procedures. The concentration of uranium in Rb[sub 2]U(SO[sub 4])[sub 3] could be determined with an accuracy better than 0.1% employing the HClO[sub 4] treatment for proper isotopic exchange between the spike and sample isotopes. 12 refs., 1 fig., 5 tabs.

• OSTI ID: 6460736
• Journal Information: Analytical Letters; (United States), Vol. 26:5; ISSN 0003-2719
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
RUBIDIUM SULFATES
MASS SPECTROSCOPY
URANIUM
QUANTITATIVE CHEMICAL ANALYSIS
URANIUM SULFATES
ACCURACY
IONIZATION
ISOTOPE DILUTION
ISOTOPES
ISOTOPIC EXCHANGE
PERCHLORIC ACID
STOICHIOMETRY
ACTINIDE COMPOUNDS
ACTINIDES
ALKALI METAL COMPOUNDS
CHEMICAL ANALYSIS
CHLORINE COMPOUNDS
ELEMENTS
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
ISOTOPE APPLICATIONS
METALS
OXYGEN COMPOUNDS
RUBIDIUM COMPOUNDS
SPECTROSCOPY
SULFATES
SULFUR COMPOUNDS
TRACER TECHNIQUES
URANIUM COMPOUNDS
400201* - Chemical & Physicochemical Properties