Results 61 to 70 of about 435,222 (363)

Evidence of late Quaternary environmental change in a continental east Antarctic lake from lacustrine sedimentary pigment distributions [PDF]

, 2005
A sediment core from Progress Lake, one of the oldest lacustrine sequences in East Antarctica, contains distinct zones dating from a previous interglacial (most likely Marine Isotope Stage 5e, c.
Hodgson, D A, Keely, B J, Squier, A H
core   +2 more sources

Large‐Scale Interlaboratory Study Along the Entire Process Chain of Laser Powder Bed Fusion: Bridging Variability, Standards, and Optimization across Metals and Polymers

Advanced Engineering Materials, EarlyView.
What happens when 32 labs join forces to study nanoparticle‐modified powders? A data‐driven journey through laser powder bed fusion—now openly accessible for the entire additive manufacturing community—is studied. Laser powder bed fusion is a cornerstone technology for additive manufacturing (AM) of metals and polymers, yet challenges in achieving ...
Ihsan Murat Kuşoğlu, Sunidhi Garg, Arvid Abel, Prasanna V. Balachandran, Stephan Barcikowski, Louis Becker, Jan-Simeon Bernsmann, Jonas Boseila, Christoph Broeckmann, Mert Coskun, Malte Dreyer, Mark East, Mark Easton, Nils Ellendt, Stan Gann, Bilal Gökce, Mareen Goßling, Joachim Greiner, Piotr Gruber, Moritz Grünewald, Kopila Gurung, Nick Hantke, Florian Hengsbach, Hannes Holländer, Brecht Van Hooreweder, Kay-Peter Hoyer, Yajiang Huang, Florian Huber, Olaf Kessler, Burçin Özbay Kısasöz, Stefan Kleszczynski, Ebubekir Koc, Tomasz Kurzynowski, Arno Kwade, Simon Leupold, Dongmei Liu, Felix Lomo, Arne Lüddecke, Gerrit A. Luinstra, David A. Mauchline, Fabian Meyer, Lars Meyer, Peter Middendorf, Stefan Nolte, Michał Olejarczyk, Ludger Overmeyer, Andrij Pich, Sebastian Platt, Felix Radtke, Roland Ramm, Silja-Katharina Rittinghaus, Richard Rothfelder, Johannes Rudloff, Mirko Schaper, Marie Luise Scheck, Johannes Henrich Schleifenbaum, Michael Schmidt, Jan T. Sehrt, Yvonne P. Shabanga, Alexander Sommereyns, Rabea Steuer, Layla Shams Tisha, Anastasiya Toenjes, Christopher Tuck, Adrian Vaghar, Bey Vrancken, Zhengze Wang, Sebastian Weber, Jan Wegner, Bai-Xiang Xu, Yangyiwei Yang, Duyao Zhang, Evgeny Zhuravlev, Anna R. Ziefuss   +73 more
wiley   +1 more source

High pressure liquid chromatography solvent systems for studies of bile acid biosynthesis.

Journal of Lipid Research, 1988
Reversed phase high pressure liquid chromatography (HPLC) solvent systems have been developed for the separation of intermediates in the formation of bile acids and bile acid conjugates from cholesterol.
K Prydz, B F Kase, J I Pedersen
doaj  

On dissolution test for Hypertril tablets using high performance liquid chromatography

Aktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2019
Particular attention is paid to the release of the active ingredients of drugs in the form of tablets. Therefore, we have developed a method for determining the dissolution test, for the original drug Hypertril. The purpose.
L. I. Kucherenko, N. V. Parniuk, Z. B. Moriak, L. H. Cherkovska, H. I. Tkachenko   +4 more
doaj   +1 more source

Recent developments in the rapid analysis of plants and tracking their bioactive constituents [PDF]

, 2009
Natural products chemistry has witnessed many new developments in the last 5 years like extractions with subcritical water and ionic liquids, LC/HRMS and LC/SPE/cryo-NMR, UHPLC, TLC/MS, MS-based preparative HPLC, comprehensive chromatography (GC × GC, LC
Beek, T.A., van, Claassen, F.W., Dapkevicius, A., Exarchou, V., Jeurissen, S.M.F., Klift, E.J.C., van der, Koleva, I., Tetala, K.K.R.   +7 more
core   +2 more sources

Mesoporous Silica Microspheres by Super‐Fast Alkaline Etching of Micrometer‐Sized Stöber Particles

Advanced Engineering Materials, EarlyView.
Microscale silica particles are prepared along with a modified, scalable Stöber synthesis using the continuous addition of tetraethoxy silane to an ethanolic solution of ammonia with KCl. Etching with hydroxide ions at 95 °C gave porous analogs within minutes. Monodisperse particles are isolable in high yield after precipitation in ethanol.
Adrian Vaghar, Georgij Jegorenkov, Gerrit A. Luinstra   +2 more
wiley   +1 more source

Separation of Oligosaccharides from Lotus Seeds via Medium-pressure Liquid Chromatography Coupled with ELSD and DAD [PDF]

, 2017
peer-reviewedLotus seeds were identified by the Ministry of Public Health of China as both food and medicine. One general function of lotus seeds is to improve intestinal health.
AD Orozco-Cortes, BA Olsen, C Huang, D Feria-Gervasio, D García-Gómez, E Borch, FLY Fong, G Yen, H Kaplan, H Wang, J Li, J Valette, J Yang, Jh Wang, K Nimptsch, M Björklund, M Björklund, M Fernández, M Lv, MT Machado, O Bañuelos, P Hemström, P Weber, PK Mukherjee, R Tabasco, S Challal, S Gusakova, S Wu, T Ignatova, T Ikegami, TCMV Do, W Oleszek, W Zong, X Lu, X Lu, Y García-Curbelo, Y Zhang, YF Zheng, Z Guo, Z Yang   +39 more
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Determinação de captopril por HPLC acoplado a espectômetro de massa: aplicação em estudo de bioequivalência - doi: 10.5020/18061230.2012.p13

Revista Brasileira em Promoção da Saúde, 2012
Objetivo: Avaliar a bioequivalência de três diferentes formulações de captopril 25mg (Capoten® como formulação de referência e Captopril produzido pela FURP e Farmanguinhos como formulações testes) em 24 voluntários saudáveis de ambos os sexos.
Aline Kércia Alves Soares, Manoel Odorico de Moraes, Fernando Antônio Frota Bezerra, Gilberto de Nucci, Maria Elisabete Amaral de Moraes   +4 more
doaj   +1 more source

Hydrogel‐Based Photothermal‐Catalytic Membrane for Efficient Cogeneration of Freshwater and Hydrogen in Membrane Distillation System

Advanced Functional Materials, EarlyView.
This work presents an overview of the PTC‐VMD system for water‐hydrogen co‐generation. a) Illustration of the hydrogel‐based PTC membrane and the co‐generation of water and hydrogen. b) Structure of the PTC‐VMD system and the functions of each component layer.
Jiawei Sun, Muhammad Usman Farid, Wenlong Xi, Gang Lu, Min Wei Boey, Sai Kishore Ravi, Patrick H.‐L. Sit, Alicia Kyoungjin An   +7 more
wiley   +1 more source