Results 131 to 140 of about 2,088,465 (288)

Dating cassiterite using laser ablation ICP-MS

, 2016
Cassiterite is the main ore mineral of Sn deposits, and may be used to date tin mineralization processes/processes. Both isotope dilution thermal ionization mass spectrometer (ID-TIMS) and laser ablation multi-collector inductively coupled plasma mass ...
Ding, Xing, Fan, Wei-ming, Sun, Wei-dong, Ling, Ming-xing, Zhang, Rong-qing, Li, Cong-ying   +5 more
core  

Stable, Reusable Copper‐Bispidine Catalysts on Agarose With Diffusion‐Limited Turnover: When Immobilization is not Covalent

European Journal of Inorganic Chemistry, EarlyView.
Epoxy‐activated agarose beads as support for copper(II)‐bispidine complexes provide reusable heterogeneous catalysts for styrene aziridination with negligible copper leaching. Immobilization occurs largely through noncovalent interactions. Catalyst loading strongly governs performance by balancing active‐site density, accessibility, and mass transport.
Nadjana Schneider, Sebastian Putz, Sebastian Fleer, Stefan Heißler, Eric Gottwald, Jonas Braun, André Tschöpe, Katharina Bleher   +7 more
wiley   +1 more source

Optimized Copper Pretreatment Protocols for Premium Green Raisin Production via Vacuum Impregnation and Metallo‐Complex Stabilization

Future Postharvest and Food, EarlyView.
ABSTRACT Green raisin production is limited by rapid chlorophyll degradation during drying. This study evaluated copper metallo‐complex formation to stabilize green pigmentation in Vitis vinifera cv. Thompson Seedless grapes. Pretreatments with copper sulfate (CuSO4) pentahydrate (2%–6% w/v) were applied via dipping and vacuum impregnation (2–10 min ...
Sakharam Kale, Prerna Nath, Pankaj Kannaujia   +2 more
wiley   +1 more source

A Systematic Characterisation of Concentration Mismatch Effects in MC-ICP-MS [PDF]

Goldschmidt Abstracts, 2020
Evelyn Frères, Dominique Weis
openaire   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

Geological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang, Khin Zaw, Kakda Kret, Ivan Belousov, Kotaro Yonezu, Koichiro Watanabe, Charles Makoundi   +6 more
wiley   +1 more source

Tracing the Origin of Oxide Inclusions in Vacuum Arc Remelted Steel Ingots Using Trace Element Profiles and Strontium Isotope Ratios

Metals
Non-metallic inclusions (NMIs) in steel have a detrimental effect on the processing, mechanical properties, and corrosion resistance of the finished product.
Christoph Walkner, Gulnaz Mukhametzianova, Stefan Wagner, Jörg C. Korp, Andreas Graf, Johanna Irrgeher, Thomas C. Meisel, Thomas Prohaska   +7 more
doaj   +1 more source

Determination of Stable Strontium Isotopic Compositions by MC-ICP-MS

Atomic Spectroscopy, 2020
Juan Xu, Shouye Yang, Yueheng Yang, Yongsheng Liu, Xiaolei Xie   +4 more
openaire   +1 more source

Late Pleistocene Volcanic Rocks From Tengchong Volcanic Field at SE Tibetan Plateau: Constraints on Petrogenesis and Mantle and Crustal Processes

Geological Journal, EarlyView.
Early zircon saturation and crystallisation occur in mafic (52–54 wt.% SiO2) lavas at Tengchong volcanic field. These early formed zircons with high δ18O (6.6‰–7.9‰) indicates mantle enrichment by subducted supracrustal materials. ABSTRACT Late Pleistocene (< 0.2 Ma) mafic and evolved volcanic rocks occur in northern Tengchong Volcanic Field, SE ...
Lizhu Wang, Haibo Zou
wiley   +1 more source

Development and Application of a High-Precision Pseudo-Isotope Dilution Mass Spectrometry Method

Zhipu Xuebao
High-precision quantitative analysis of trace elements constitutes a pivotal research focus in materials science, environmental monitoring, and nuclear science.
Ya-long WANG, Si-qi GUO, Wei WANG, Rui-yang XI, Jiang XU, Xiao-pan SHEN, Fan YU, Sui FANG, Yong-yang SU, Zhi-ming LI   +9 more
doaj   +1 more source

A Rapid and Simple Method for Lithium Purification and Isotopic Analysis of Geological Reference Materials by MC-ICP-MS. [PDF]

Front Chem, 2020
Zhu G, Ma J, Wei G, Zhang L.
europepmc   +1 more source