Results 61 to 70 of about 88,261 (305)

Evaluation in the Application of Multi-instrument Synergy X-ray Fluorescence Spectrometry in a Regional Geochemical Survey

Yankuang ceshi, 2017
Multi-element analysis of a regional geochemical survey sample usually involves X-ray Fluorescence Spectrometry (XRF), Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES), Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Atomic ...
FU Yong-li, CHENG Wen-cui, ZHANG Zhao-fa, WEI Li, SUN Meng-hua, PANG Xue-min   +5 more
doaj   +1 more source

Isolation, characterization and standardization of demineralization process for chitin polymer and minerals from the crabs waste of Portunidae segnis

Advances in Biomarker Sciences and Technology, 2020
The most abundant polymeric compound in nature after cellulose is chitin. Mostly, it is used as raw material for food additives, agriculture, biomedicine, water treatment, cosmetics and textile industry. Exoskeletons of crustaceans such as lobster, crabs
Noura Hamed Khalifa Al Shaqsi, Horiya Ali Said Al Hoqani, Mohammad Amzad Hossain, Mohammed Abdullah Al Sibani   +3 more
doaj   +1 more source

Widespread erosion on high plateaus during recent glaciations in Scandinavia [PDF]

, 2018
Glaciers create some of Earth’s steepest topography; yet, many areas that were repeatedly overridden by ice sheets in the last few million years include extensive plateaus.
Andersen, Jane L., Egholm, David L., Fabel, Derek, Jansen, John D., Knudsen, Mads F., Linge, Henriette, Nielsen, Søren B., Olsen, Jesper, Pedersen, Vivi K., Tikhomirov, Dmitry, Xu, Sheng   +10 more
core   +2 more sources

Facet‐Engineered S‐Scheme Heterostructure With Enhanced Active Sites for Efficient Photocatalytic Degradation of Organic Contaminants

Advanced Functional Materials, EarlyView.
The facet‐engineered ZnO/Zn3In2S6 heterostructure, dominated by {001} plane coupling, exposes abundant unsaturated Zn sites with elongated Zn─O bonds, directing photoexcited charge carriers along an S‐scheme pathway and suppressing recombination. Enhanced interfacial Zn adsorption toward bisphenol A and methylene blue further synergistically promotes ...
Yang Yang, Zisheng Du, Hongyuan Yang, Debabrata Bagchi, Ruotao Yang, Prashanth W. Menezes, Sugang Meng   +6 more
wiley   +1 more source

Comparação de técnicas analíticas para a determinação de cálcio, magnésio e alumínio trocáveis em amostras de solos. [PDF]

, 2017
Comparação de métodos titulométrico e espectrofotométrico de emissão ótica por plasma indutivamente acoplado (ICP-OES) para a determinação de Ca, Mg e Al trocáveis em amostras de solos de referência, oriundas do Programa de Análise de Qualidade de ...
BERNARDI, A. C. de C., ESCALEIRA, V., SOARES, R.   +2 more
core  

Nano‐ and Micro‐Sized Solid Materials Used as Antiviral Agents

Advanced Functional Materials, EarlyView.
Due to the rise of viral infections in humans and possible viral outbreaks, the use of nano‐ or micro‐sized materials as antiviral agents is rapidly increasing. This review explores their antiviral properties against RNA and DNA viruses, either as a prevention or a treatment tool, by delving into their mechanisms of action and how to properly assess ...
Orfeas‐Evangelos Plastiras, Imelda Raczkiewicz, Peggy Bouquet, Jean‐Philippe Dacquin, Jeremy Dhainaut, Anne Goffard, Christophe Volkringer   +6 more
wiley   +1 more source

Multi-energy calibration in plasma emission spectrometry: elemental analysis of animal feeds

Frontiers in Analytical Science
This study evaluates the effectiveness of Multi-Energy Calibration (MEC) for multielemental analysis in animal feeds using plasma-based optical emission spectrometry (ICP-OES and MIP-OES).
Florencia Cora Jofre, Florencia Cora Jofre, Ariane I. Barros, Joaquim A. Nóbrega, Marianela Savio, Marianela Savio   +5 more
doaj   +1 more source

Nanoparticles of transition metals oxides with application potential [PDF]

, 2009
Tato práce se zabývá nejvíce používanými metodami přípravy a fyzikálními vlastnostmi nanočástic přechodných kovů. Fyzikální vlastnosti nanočástic mohou být kontrolovány pomocí velikosti a tvaru částic.
Burianová, Simona
core   +1 more source

Iron single crystal growth from a lithium-rich melt [PDF]

, 2018
\alpha-Fe single crystals of rhombic dodecahedral habit were grown from a melt of Li$_{84}$N$_{12}$Fe$_{\sim 3}$. Crystals of several millimeter along a side form at temperatures around $T \approx 800^\circ$C.
Breitner, F., Fix, M., Jantz, S. G., Jesche, A., Leineweber, A., Schumann, H.   +5 more
core   +2 more sources

Dual‐Ligand Metal‐Organic Frameworks via In Situ Amidoxime Engineering for Selective Ion Separation

Advanced Functional Materials, EarlyView.
Inspired by microbial ion‐trapping mechanisms, a mild and universal strategy is developed to construct highly porous amidoxime‐functionalized MOFs. DFT calculations and molecular force measurements reveal that the dual‐ligand amidoxime configuration significantly strengthens Ga(III) affinity.
Zhifang Lv, Guixia Fan, Yun Bai, Guosheng Li, Peng Li, Wenjihao Hu, Yijun Cao, Wenshuai Yang, Daoguang Teng, Hongbo Zeng   +9 more
wiley   +1 more source