Results 201 to 210 of about 30,624 (259)

Coordinating Mesopore Geometry and Interfacial Water Dynamics for Iron‐Site Evolution in Nitrate Electroreduction

Angewandte Chemie, EarlyView.
Mesopore geometry programs the working‐state interface of Fe single sites during nitrate electroreduction. Hexagonal channels reorganize interfacial water and accompany the reversible evolution of isolated Fe─O4‐like sites toward Fe─O─Fe‐like motifs, promoting successive hydrogenation toward NH3 with a Faradaic efficiency of 99.1%.
Xiangyang Liu, Yingji Zhao, Norman C.‐R. Chen, Kevin C.‐W. Wu, Ho Ngoc Nam, Quan Manh Phung, Asep Sugih Nugraha, Yusuke Asakura, Yusuke Yamauchi   +8 more
wiley   +1 more source

Anion Engineering of Surface Frustrated Lewis Pairs for Light‐Assisted CO2 Hydrogenation to Methanol

Angewandte Chemie, EarlyView.
Anion engineering through nitrogen incorporation regulates the local coordination environment and promotes the formation of defect‐associated Ga–O/N frustrated Lewis pairs in non‐stoichiometric zinc gallium oxide. The engineered surface sites facilitate heterolytic H2 splitting, while the modified electronic structure enhances light utilization ...
Rui Song, Jiuli Guo, Chaoqian Ai, Xueqiu Wu, Andrew Wang, Yang‐Fan Xu, Chaoran Li, Zhijie Chen, Paul N. Duchesne, Emerson MacNeil, Zeshu Zhang, Jianheng Xu, Jingyan Zhang, Yahan Zhang, Xiaoliang Yan, Xingda An, Wenqiang Qu, Yiran Li, Guangming Cai, Zhihao Zhu, Jessica Ye, Athanasios A. Tountas, Wenzhe Zhou, Maochang Liu, Chandra Veer Singh, Le He, Dengwei Jing, Geoffrey A. Ozin   +27 more
wiley   +1 more source

Lanthanide Separation via Selective Precipitation Under Neutral Aqueous Conditions With a Functionalized EDTA Chelator

Angewandte Chemie, EarlyView.
An organic‐solvent‐free approach for efficient recovery of Nd from waste hard‐disk drive NdFeB magnets is achieved via selective precipitation with ethylenediaminetetraacetic acid (EDTA) substituted by hydrophobic cs‐124, under neutral conditions. Three precipitation cycles lead to 99.7% Nd puritywith 77% recovery yield; the chelator is simply recycled
Jiajun Qiu, Leo K. B. Tam, Jean‐Claude G. Bünzli, Ka‐Leung Wong   +3 more
wiley   +1 more source

Erweiterung der Peptidligation auf Saure pH‐Bereiche und Schnittstellen mit Glykosylierten und Phosphorylierten Aminosäuren

Angewandte Chemie, EarlyView.
Ein pyridinhaltiges Ligationsauxiliar beseitigt einen wesentlichen Engpass der Peptidligationschemie. Der für die Ligation nutzbare pH‐Bereich von 2,0–7,5 hilft, Epimerisierung zu vermeiden. Die native chemische Ligation (NCL) verläuft an praktisch jeder Ligationsstelle, einschließlich Reaktionen an β‐verzweigten sowie O‑glykosylierten oder O ...
Sebastian Trunschke, Antonia Feida, Hendrik Hanebrink, Arseniy Galashov, Alina Herfort, Oliver Seitz   +5 more
wiley   +1 more source

Estimation of Titanium Levels in Blood Following Reconstruction of Post-Craniotomy Defect by Titanium Mesh Using Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES). [PDF]

J Maxillofac Oral Surg
Kulkarni V, Kumar CS, Ghosh S, Rath MK.
europepmc   +1 more source

Axial Boron Coordination Reconstructs Stereostructure of Cu Single‐Atom Nanozymes for Efficient Water‐Phase Chemical Sensing

Angewandte Chemie, EarlyView.
Sun et al. proposed an axial boron coordination strategy to reconstruct the stereostructure of Cu SAzymes and enable them to serve as efficient laccase mimics for high‐throughput smart sensor array detection of phenolic pollutants in water phases. ABSTRACT Developing single‐atom nanozymes with stereoconfigurations is a new paradigm for biomimetic ...
Qijun Sun, Hongyu Shi, Si Liu, Ziping Li, Yu Yang, Fengwang Li, Wenli Wu, Qiongzheng Hu, Kang Liang   +8 more
wiley   +1 more source

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ICP-OES Analysis for Humic Substance

Russian Agricultural Sciences, 2023
The possibilities of optical emission spectrometry with inductively coupled plasma (OES-ICP analysis) (in radial plasma observation) of humic preparations (HP) are evaluated, the proposed technique allows quantifying up to 24 elements (As, Al, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, P, Pb, Si, S, Sr, Ti, V and Zn).
openaire   +1 more source

Comparisons between LIBS and ICP/OES

Analytical and Bioanalytical Chemistry, 2006
In the framework of the development of new techniques, the ability of laser-induced breakdown spectroscopy (LIBS) to analyse remotely complex aqueous solutions was investigated. The jet configuration with a collimated gas stream was chosen because it appeared to be the most promising method for the LIBS probe, particularly in terms of sensitivity and ...
P, Fichet, M, Tabarant, B, Salle, C, Gautier   +3 more
openaire   +2 more sources

Quantification of Si in Silicone Oils by ICP-OES

Silicon, 2014
A new simple and low cost method of quantification of trace amounts of silicon (Si) in silicone oils has been developed by combining the silicone emulsion and inductively coupled plasma optical emission spectroscopy (ICP-OES) analysis. Silicone oils that contained phenyl groups in the viscosity range from 20 to 1000 mPa.s formed stable oil in water ...
Wang, Qian, Yang, Zhenyu
openaire   +2 more sources

Multisignal calibration in spark- and ICP-OES

Fresenius' Journal of Analytical Chemistry, 1994
The advantages of multivariate calibration by using more than one selective emission line for one analyte are described in comparison with univariate calibration. Principle component regression (PCR) and partial least squares regression (PLS) are compared with classical univariate linear regression of single lines.
Klaus Danzer, Katrin Venth
openaire   +1 more source