Results 121 to 130 of about 397,097 (299)

Analysis of an Antarctic ice core by ion chromatography (Mg2+, Na+, Cl−, and SO42− content) [PDF]

Geochimica Brasiliensis, 2014
This study presents the ion chromatography analysis of an Antarctic ice core (IC-3; 85°59’S, 81°35’W) and discusses Mg2+, Na+, Cl-, and SO42− concentration data.
Magdalena de Mello Marques, Maria do Carmo Ruaro Peralba, Jefferson Cardia Simões, Ronaldo Torma Bernardo, Sharon B. Sneed, Gino Casassa   +5 more
doaj  

Design of two-column batch-to-batch recirculation to enhance performance in ion-exchange chromatography

, 2018
Preparative liquid chromatography is a separation technique widely used in the manufacturing of fine chemicals and pharmaceuticals. A major drawback of traditional single-column batch chromatography step is the trade-off between product purity and ...
Nilsson, Bernt,, Lund University., Andersson, Niklas,, Persson, Oliver,   +3 more
core   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

Advanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez, Melanie Guillén‐Soler, Carlos Herreros‐Lucas, Alejandro López‐Moreno, José Manuel Vila‐Fungueiriño, Antonio Luis Llamas‐Saiz, Karol Strutyński, Manuel Melle‐Franco, María del Carmen Giménez‐López   +8 more
wiley   +1 more source

A Study on the Formation Reactions and Conversion Mechanisms of HONO and HNO₃ in the Atmosphere of Daejeon, Korea

Atmosphere
Nitrogen oxides (NOX) in the atmosphere cause oxidation reactions with photochemical radicals and volatile organic compounds, leading to the accumulation of ozone (O3). NOX constitutes a significant portion of the NOy composition, with nitrous acid (HONO)
Kyoungchan Kim, Chunsang Lee, Dayeong Choi, Sangwoo Han, Jiwon Eom, Jinseok Han   +5 more
doaj   +1 more source

Innovative solutions for enhanced illicit drugs profiling using comprehensive two-dimensional gas chromatography and mass spectrometry technologies [PDF]

, 2014
This project aimed to determine whether comprehensive two-dimensional gas chromatography is suitable for routine use in a forensic laboratory for profiling illicit substances.
Philip Marriot, Blagoj Mitrevski
core  

Comprehensive hydrophilic interaction and ion-pair reversed-phase liquid chromatography for analysis of di- to deca-oligonucleotides

, 2012
A comprehensive two-dimensional HPLC approach with a high degree of orthogonality was developed for analysis of di- to deca-oligonucleotides (ONs).
Wang, Jian, 许国旺, PatSandra, Sandra, Pat, Hanlin Li, Li, Qin, Guowang Xu, Li, Hanlin, JianWang, Pat Sandra, Frédéric Lynen, HanlinLi, 李钦, Qin Li, Jian Wang, Sandra, Patrick, FredericLynen, Lynen, Frederic, Xu, Guowang   +18 more
core   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source

Rapid ion-exchange chromatography for preparative separation of proteins IV. Application to bovine carbonic anhydrase III from skeletal muscle

, 1991
Bovine muscle carbonic anhydrase III was purified to homogeneity by the strategy of rapid ion-exchange chromatography. The ionic exchanger used was CM-cellulose, and this is the first application of this technique on a cation exchanger.
Kristina Borén, Borén, Kristina,, Uno Carlsson, Nils Bergenhem, Bergenhem, Nils,, Carlsson, Uno,, Marie Larsson, Larsson, Marie,   +7 more
core   +1 more source

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source