Results 151 to 160 of about 890,337 (369)

Aspectos analíticos e regulatórios na determinação de resíduos de macrolídeos em alimentos de origem animal por cromatografia líquida associada à espectrometria de massas Analytical and regulatory aspects for determination of macrolide residues in animal-derived foods by liquid chromatography associated with mass spectrometry

Química Nova, 2013
This is an overview of LC-MS techniques applied for macrolide determination in food, including sample preparation and method validation, as well as the policies adopted by international agencies regarding their presence in food.
Marcela Sismotto, Jonas Augusto Rizzato Paschoal, Felix G. R. Reyes   +2 more
doaj  

An NMR Study of N-isobutyryl-3'-O-(1-fluoro-1,1,3,3-tetraisopropyl-1,3-disiloxane-3-yl)-2'-benzyloxycarbonyl-guanosine

Chinese Journal of Magnetic Resonance, 2019
The nucleoside derivative N-isobutyryl-3'-O-(1-fluoro-1,1,3,3-tetraisopropyl-1,3-disiloxane-3-yl)-2'-benzyloxy carbonyl-guanosine (compound 1) was obtained by selectively cleaving the 1,1,3,3-tetraisopropyldisiloxanyl protecting group at 5'-position with
WEI Hui-qiang, YU Jiang, BI Chang-fen, NING Hong-xin, LI Yi-liang, LIU Qiang   +5 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

Electrospray Propulsion Time-of-Flight Secondary Ion Mass Spectrometry Diagnostic [PDF]

arXiv
The design and capability of a novel time-of-flight secondary ion mass spectrometry electrospray propulsion diagnostic is presented to investigate secondary species emission from surface impingement of high-velocity, energetic molecular ion plumes. Designed on the basis of traditional Secondary Ion Mass Spectrometry (SIMS) principles, this diagnostic ...
arxiv  

Quantification of Phenols in Gas from Rotten Liquid Swine Manure by Computer-controlled Gas Chromatography-Mass Spectrometry [PDF]

, 1979
Akio Yasuhara, Keiichirō Fuwa
openalex   +1 more source

MS-DIAL: data-independent MS/MS deconvolution for comprehensive metabolome analysis. [PDF]

, 2015
Data-independent acquisition (DIA) in liquid chromatography (LC) coupled to tandem mass spectrometry (MS/MS) provides comprehensive untargeted acquisition of molecular data.
Arita, Masanori, Cajka, Tomas, Fiehn, Oliver, Higgins, Brendan, Ikeda, Kazutaka, Kanazawa, Mitsuhiro, Kind, Tobias, Ma, Yan, Tsugawa, Hiroshi, VanderGheynst, Jean   +9 more
core  

Ammonia gas: an improved reagent for chemical ionization mass spectrometry of bile acid methyl ester acetates

Journal of Lipid Research, 1981
The ammonia chemical ionization mass spectra of 28 methyl ester acetate derivatives of bile acids and related compounds have been determined by gas-liquid chromatography-mass spectrometry.
B R DeMark, P D Klein
doaj  

Fibrous Pb(II)‐Based Coordination Polymer Operable as a Photocatalyst and Electrocatalyst for High‐Rate, Selective CO2‐to‐Formate Conversion

Advanced Functional Materials, EarlyView.
A coordination polymer [Pb(tadt)]n prepared by a microwave‐assisted solvothermal method selectively reduces CO2 into formate under visible light with a high apparent quantum yield of ≈25% at 400 nm. It can function as a pre‐catalyst, along with conductive Ketjen Black, to form an active PbCO3/Pb3(CO3)2(OH)2 mixture that exhibits a high Faradaic ...
Chomponoot Suppaso, Ryosuke Nakazato, Shoko Nakahata, Yoshinobu Kamakura, Fumitaka Ishiwari, Akinori Saeki, Daisuke Tanaka, Kazuhide Kamiya, Kazuhiko Maeda   +8 more
wiley   +1 more source

Time‐Controlled Dual Targeting to Program Systemic and Intercellular Transfer of Therapeutic Effects

Advanced Functional Materials, EarlyView.
Aspirin‐liposomes loaded onto monocytes enable inflammation‐triggered targeting and efficient hand‐over of aspirin to inflamed cells. Monocytes uptake a significant portion of aspirin‐liposomes, prolonging therapeutic action. This approach enhances anti‐inflammatory effects through intercellular transfer, demonstrating a translational strategy for ...
Seung Eun Yu, Jueun Kim, Dae‐Hyun Kim, Sewoom Baek, Suji Park, Seyong Chung, Hak‐Joon Sung   +6 more
wiley   +1 more source

Mesenchymal Stem Cells‐Derived Extracellular Vesicles Mimetics as Osteoinductive Mediators for Bone Healing

Advanced Functional Materials, EarlyView.
Mesenchymal stem cell‐derived nanoghosts (MSC‐NGs) mimic naturally secreted extracellular vesicles (MSC‐EVs) in structure and physicochemical properties but can be synthesized at more translatable yields. As osteogenic agents, MSC‐NGs demonstrate superior outcomes compared to MSC‐EVs.
Antoine Karoichan, Ling Li, Celine J. Agnes, Bettina M. Willie, Maryam Tabrizian   +4 more
wiley   +1 more source