Determination of trace amounts of rare earth elements in high pure lanthanum oxide by sector field inductively coupled plasma mass spectrometry (HR ICP–MS) and high-performance liquid chromatography (HPLC) techniques

Simultaneous Determination of Rare Earth Elements by ICP OES After On-Line Enrichment Using Multi-Walled Carbon Nanotubes Coated Cellulose Acetate Membrane

“…There have been many analytical techniques used for the determination of REEs in solid and solution samples; neutron activation analysis (NAA), 1,2 inductively coupled plasma-optical emission spectrometry (ICP OES), 3,4 isotope dilution mass spectrometry 5,6 and inductively coupled plasma-mass spectrometry (ICP-MS) [7][8][9] are the most popular ones.…”

Determination of rare earth impurities in high purity samarium oxide using inductively coupled plasma mass spectrometry after extraction chromatographic separation

“…applications of ICP-MS for the determination of trace or ultratrace REEs as impurities exist in other high purity rare earth samples or other materials in spite of some potential problems encountered in the analytical procedures, such as matrix suppression and isobaric interferences of atomic and molecular ions [2][3][4][11][12][13]16,[18][19][20][21][22][23][24][25][26][27][28][29]. The matrix suppression could be compensated by means of adding internal standard because the intensity of internal standard element and analytes of interest decreased at the same time with matrix concentration increasing [2,17,[19][20][21][22][23][24][25].…”

“…The matrix suppression could be compensated by means of adding internal standard because the intensity of internal standard element and analytes of interest decreased at the same time with matrix concentration increasing [2,17,[19][20][21][22][23][24][25]. However, the problem of mass spectra interferences could critically restrict ICP-MS analytical capabilities of the analysis of many high purity rare earth materials [19][20].…”

Preconcentration and atomic spectrometric determination of rare earth elements (REEs) in natural water samples by inductively coupled plasma atomic emission spectrometry

“…There have been many analytical techniques used for the determination of REEs in solid and solution samples; neutron activation analysis [1,2], isotope dilution mass spectrometry [3,4], inductively coupled plasma atomic emission spectrom-etry (ICP-AES) [5][6][7][8][9], and inductively coupled plasma mass spectrometry (ICP-MS) [10][11][12][13][14][15][16] are the most popular ones. These techniques are usually applied after a separation and/or a preconcentration step due to low concentrations of REEs in environmental samples.…”

“…Also, major constituents in several samples, such as organic compounds and inorganic salts, may result in interference effects. Various methods have been used for matrix removal/preconcentration purposes, such as coprecipitation [4], liquid-liquid extraction [17,18], ion-exchange [7][8][9]13], and a variety of sorbents including chelating resins [5,6,[10][11][12]15,19,20].…”