Use of Carbon Nanofibers Loaded With 1-Phenyl-3-Methyl-4-Benzoyl-5-Pyrazone for Preconcentration and Separation of Trace Rare Earth Elements Prior to Their Determination by ICP-MS
نویسندگان
چکیده
منابع مشابه
Preconcentration of rare earth elements on silica gel loaded with 1-phenyl-3-methyl-4-benzoylpyrazol-5-one prior to their determination by ICP-AES.
A new chelating resin, silica gel loaded with 1-phenyl-3-methyl-4-benzoylpyrazol-5-one (PMBP), was prepared and used for the preconcentration of trace amounts of rare earth elements (REEs) in water samples prior to their determination by inductively coupled plasma atomic emission spectrometry (ICP-AES). REEs (La, Eu, Yb and Y) were quantitatively retained on the column packed with modified sili...
متن کاملOnline preconcentration ICP-MS analysis of rare earth elements in seawater
[1] The rare earth elements (REEs) with their systematically varying properties are powerful tracers of continental inputs, particle scavenging intensity and the oxidation state of seawater. However, their generally low ( pmol/kg) concentrations in seawater and fractionation potential during chemical treatment makes them difficult to measure. Here we report a technique using an automated precon...
متن کامل4-[(2-Benzoyl-4-chlorophenyl)diazenyl]-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one
In the title compound, C(23)H(17)ClN(4)O(2), the amino H atom forms an intra-molecular hydrogen bond to the exocyclic carbonyl O atom as well as to the O atom of the benzoyl group.
متن کاملTwo new separation schemes for the group isolation of rare earth elements (REE) from biological and other matrices and their determination by ICP-MS, NAA and chromatographic methods
Rare earth elements (REEs), i.e. Sc, Y, La and the lanthanides, constitute an interesting group of 17 elements of extremely similar chemical properties that make their separation and analytical determination diffi cult. One of the lanthanides – promethium – has no stable isotope and does not occur naturally. REEs are elements of steadily growing importance in science and in various branches of ...
متن کاملDetermination of heavy metals and rare earth elements in environmental samples by ICP-MS after solid phase preconcentration with chelating resin fibers and anion exchanger filters.
A solid phase collection/concentration method using anion exchanger filters and a small syringe packed with chelating resin fibers is adopted as a preconcentration tool for trace elements and a separation tool for matrices in aqueous samples prior to the measurement by inductively coupled plasma-mass spectrometry (ICP-MS). The effects of fiber volume, sample volume, eluent volume, and sample fl...
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ژورنال
عنوان ژورنال: Atomic Spectroscopy
سال: 2016
ISSN: 0195-5373,2708-521X
DOI: 10.46770/as.2016.03.002