Results 201 to 210 of about 13,031 (257)

Incorporation of Organic Counter‐Cations Into Poly(Heptazine Imide) Networks for Promoting Proton‐Coupled Electron Transfer During Photocatalytic H2O2 Evolution

Angewandte Chemie, EarlyView.
Incorporation of N‐based onium ions into the ionic framework of poly(heptazine imide) was obtained via protonation‐deprotonation of PHI frameworks arising from a parent Na‐containing analogue. Particularly, methylammonium moieties, through their small molecular size, hydrogen bonding capabilities and rotational mobility, appear to stabilize ...
Dingqiao Ji, Hikmat Binyaminov, Desiree Leistenschneider, Martin Oschatz, Paolo Giusto, Markus Antonietti, Horațiu Szalad   +6 more
wiley   +1 more source

Single-cell assessment of iron content in primary human T cells using laser ablation inductively coupled plasma mass spectrometry. [PDF]

Cell Rep Methods
Carp DM, Golda P, Griffiths A, Flaherty K, Morrell A, Schurich A.   +5 more
europepmc   +1 more source

Contrast enhanced CT and MRI interchangeably reflect tumor characteristics in murine pancreatic cancer. [PDF]

Sci Rep
Würfel L, Niehaus P, Topping GJ, Semina M, Mittelhäuser M, Kossatz S, Lesina M, Lohöfer F, Schilling F, Karst U, Braren R, Heid I.   +11 more
europepmc   +1 more source

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Cassiterite fingerprinting by LA-ICP-MS

Journal of Analytical Atomic Spectrometry, 2013
Cassiterite (SnO2) has been specified as a ‘conflict mineral’ by a U.S. Government Act. This requires all companies that use tin in their products to verify that this tin does not originate from conflict regions in the Democratic Republic of the Congo where an ongoing violent conflict is fuelled by those minerals.
Hans-Eike Gäbler, Sönke Rehder, Andreas Bahr, Frank Melcher, Simon Goldmann   +4 more
openaire   +1 more source

The Role of LA–ICP–MS in Palaeoclimate Research

Elements, 2016
Past environmental parameters such as temperature, pH and CO2 can be reconstructed from chemical 'proxies' (elemental and isotopic compositions) stored in various 'archives' such as corals, foraminifera and bivalves. Versatile, rapid, simple and comparatively inexpensive microanalysis via laser ablation inductively coupled plasma mass spectrometry (LA ...
Wolfgang Müller, Jan Fietzke
openaire   +3 more sources

Matrix dependency of baddeleyite U–Pb geochronology by femtosecond-LA-ICP-MS and comparison with nanosecond-LA-ICP-MS

Journal of Analytical Atomic Spectrometry, 2018
Baddeleyite is a key mineral in geochronology of mafic rocks as it crystallizes in silica-undersaturated systems that do not grow zircon.
Cora C. Wohlgemuth-Ueberwasser, Jan A. Schuessler, Friedhelm von Blanckenburg, Andreas Möller   +3 more
openaire   +3 more sources

LA-ICP-MS analysis of waste polymer materials

Analytical and Bioanalytical Chemistry, 2010
Waste polymer materials were analyzed by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). The concentrations of 35 elements were determined by using different types of external standards, namely glass and polyethylene (PE) based. Prior to the LA-ICP-MS analysis of determined elements, Na and/or Zn were used as internal standards.
T, Stehrer, J, Heitz, J D, Pedarnig, N, Huber, B, Aeschlimann, D, Günther, H, Scherndl, T, Linsmeyer, H, Wolfmeir, E, Arenholz   +9 more
openaire   +2 more sources

Microanalysis of ceramics with PIXE and LA-ICP-MS

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2002
Abstract The provenance postulate states that artifact raw material sources can be determined by chemical characterization as long as between-source chemical differences exceed within-source variation. For ceramics, successful differentiation of sources usually requires the measurement of a large suite of elements.
J.D. Robertson, H. Neff, B. Higgins
openaire   +1 more source

LA ICP-MS in microelectronics failure analysis

Journal of Materials Science: Materials in Electronics, 2011
To keep up with the trend of integrating more functionality within lighter and smaller consumer electronics devices, the dimensions of components keep shrinking. Technologies such as high density interconnection, 3-D interconnection, system in package (SIP), and flexible circuit are becoming more commonly used.
Zixiao Pan, Wei Wei, Fuhe Li
openaire   +1 more source

Applications of LA–ICP–MS to Forensic Science

Elements, 2016
Laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS) provides qualitative and quantitative measurements of the elemental and isotopic composition of materials that are of interest to forensic scientists. The technique can chemically characterize physical evidence associated with a crime event, a location, contact between objects or ...
José R. Almirall, Tatiana Trejos
openaire   +1 more source