Multielement Monitoring for Dissolved and Acid-soluble Concentrations of Trace Metals in Surface Seawater along the Ferry Track between Osaka and Okinawa as Investigated by ICP-MS

Selective Concentration of Uranium from Seawater by Nanofiltration

“…The separation of matrix elements and preconcentration of uranium should be performed prior to uranium determination. Separation and/or preconcentration methods such as coprecipitation, chelating resin adsorption, solid-phase extraction, and solvent extraction have been widely employed for seawater analysis. However, these techniques show as main drawbacks large sample volumes and lengthy preconcentration times.…”

Potential Anthropogenic Pollution of High-technology Metals with a Focus on Rare Earth Elements in Environmental Water

“…technology metals as well as REEs were also performed for the screening of a potential anthropogenic pollution in addition to the geochemical concern. 15,[141][142][143][144]…”

“…[4][5][6][7][8][9][10][11] The concentrations required for regulation are generally at mg L -1 to μg L -1 levels, and their determination can be accomplished using inductively coupled plasma mass spectrometry (ICP-MS), inductively coupled plasma optical emission spectrometry (ICP-OES), and atomic absorption spectrometry (AAS). Various studies for heavy metals in environmental waters such as rivers, lakes, and coastal seawater has been performed not only for concentration, [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] but also for speciation, [27][28][29] environmental toxicology, [30][31][32][33][34] and assessment of aquatic ecosystem. [35][36][37] In recent years, utilization of high technology metals such as rare earth elements (REEs), whose abundance are extremely low in the earth, has rapidly increased with development of new types of industrial materials and pharmaceutical products.…”

“…Eu and Tb. 15,39, This was artificially caused by anthropogenic sources mainly due to use of Gd compounds used as a contrast reagent for magnetic resonance imaging (MRI) in medical diagnosis.…”

Separation and microcolumn preconcentration of traces of rare earth elements on nanoscale TiO2 and their determination in geological samples by ICP‐AES

“…Compared with other techniques, the microcolumn preconcentration and separation technique possesses some unique advantages, such as simple operation; low cost; high enrichment factor; high sensitivity; strong resistance to jamming of matrix; and easy combination with various modern analytical techniques [atomic absorption spectrometry (AAS) and inductive coupled plasma atomic emission spectrometry/mass spectrometry (ICP-AES/MS)]. Many substances have been used as sorbents, such as chelex100 [7], alumina [8], zirconium oxide [9], active carbon [10], cellulose [11], chelating resins [12], microorganism [13], etc., in the technique. NSTD is a new solid material that has gained importance in recent years due to its excellent properties [14].…”