Results 51 to 60 of about 5,477,527 (302)

Determinação de elementos traço em amostras biológicas tratadas com ácido fórmico por espectrometria de massa com plasma indutivamente acoplado [PDF]

, 2012
Tese (Doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaEste trabalho propõe a solubilização com ácido fórmico como um procedimento alternativo à digestão ácida no preparo ...
Tormen, Luciano
core  

Geochemical analysis of bulk marine sediment by Inductively Coupled Plasma–Atomic Emission Spectroscopy on board the JOIDES Resolution

, 2002
Geochemical analyses on board the JOIDES Resolution have been enhanced with the addition of a Jobin-Yvon Ultrace inductively coupled plasma-atomic emission spectrometer (ICP-AES) as an upgrade from the previous X-ray fluorescence facility. During Leg 199,
Lyle, M., Vanden Berg, M.D., Murray, R.W., Quintin, L., Wilson, P.A., Backman, J., Coxall, H.K., Janecek, T.R., Raffi, I., Moore, T.C., Nomura, R., Nigrini, C.A., Faul, K., Tripati, A.K., Pälike, Heiko, Parés, J.M., Rea, B.R., Kruse, S., Wade, B.S., Peng, C., Nishi, H., Lanci, L., Hovan, S.A., Graham, D., Lear, C.H., Gaillot, P.A., Knoop, P., Busch, W.H., Norris, R.D., Rea, D.K., Steiger, T.H.   +30 more
core   +1 more source

Optimizing NiMo Electrocatalyst Coatings for Hydrogen Evolution in Alkaline Electrolysis With The Machine Learning‐Guided Autonomous Platform CatBot

Advanced Functional Materials, EarlyView.
This work presents a closed‐loop optimization workflow integrating CatBot, an automated synthesis and testing system, to discover NiMo hydrogen‐evolution catalysts. CatBot synthesised and evaluated 228 unique samples, identifying the best performing catalysts for transfer to nickel‐foam electrodes. The best candidate is highly active, reaching 1 Acm−2${
Paolo Vincenzo Freiesleben de Blasio, Jonas Elsborg, Elif Coşkun, Andreas Burger, Pradipkumar Manubhai Leuaa, Thu Pham Anh Phan, Jin Hyun Chang, Christodoulos Chatzichristodoulou   +7 more
wiley   +1 more source

Determination of Sulfur in Crops by Triple Quadrupole Inductively Coupled Plasma Mass Spectrometry

Liang you shipin ke-ji, 2020
Microwave Digestion-Triple Quadrupole Inductively Coupled Plasma Mass Spectrometry (ICP-MS/MS) was used to determine sulfur in crop samples, and a high sensitivity sulfur detection method in crop samples was provided.
LI Geng-wei, XIE Kui, ZHAO Zhi-fei, SONG Juan-e   +3 more
doaj   +1 more source

Geochemical Characteristics of Soil Selenium and Influencing Factors of Selenium Bioavailability in Rice Root Soils in Qingxi Area, Ganxian County, Jiangxi Province

Yankuang ceshi, 2021
BACKGROUND The south of Jiangxi Province is a typical geographical distribution area of selenium deficiency. However, some research results in recent years indicate that the rice has high selenium content.
LIU Bing-quan, SHA Min, XIE Chang-yu, ZHOU Qiang-qiang, WEI Xing-xing, ZHOU Fan   +5 more
doaj   +1 more source

Determinação de metais traço em sedimento por espectrometria de massa com plasma indutivamente acoplado com introdução da amostra na forma de suspensão por vaporização eletrotérmica [PDF]

, 2004
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.São propostos dois procedimentos simples para a determinação de elementos traço em sedimento como suspensão por ...
Dias, Lúcia Felicidade
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Charge‐Polarized Ni─S4 Single‐Atom Sites Drive Selective Photoreforming of Poly(lactic acid) to Lactate and Hydrogen

Advanced Functional Materials, EarlyView.
Atomically dispersed Ni–S4 sites on CdS nanorods induce interfacial charge polarization, directing photogenerated electrons to H2 evolution and holes to selective ester‐bond cleavage of poly(lactic acid). Without sacrificial reagents, this charge‐coupled system produces lactate while suppressing overoxidation, achieving an H2 evolution rate of 41.74 ...
Yu Yao, Panpan Zhang, Jinqiang Zhang, Xi‐lin Wu, Tara Pukala, Yifei Wang, Bernt Johannessen, Shaobin Wang, Xiaoguang Duan   +8 more
wiley   +1 more source

Determinação de metais traço em carvão na forma de suspensão por espectrometria de massa com fonte de plasma indutivamente acoplado com introdução da amostra por vaporização eletrotérmica [PDF]

, 2001
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Física e Matemáticas. Programa de Pós-Graduação em Química.Um método é proposto para a determinação de metais traço em carvão na forma de suspensão por espectrometria de massa ...
Maia, Sandra Maria
core  

Oxygen Evolution Electrocatalysts with Trinuclear, Mixed‐Valence Iron Motifs on Electronically Aligned Carbon Dots

Advanced Functional Materials, EarlyView.
Trinuclear iron oxo‐bridged catalytic ensembles stabilized by aspartic‐acid‐derived carbon dots provide an effective platform for alkaline oxygen evolution. Mixed‐valence charge balancing, inner‐sphere charge transport, and work‐function alignment within the N/O‐rich carbon framework promote cooperative Fe‐site chemistry and efficient OER ...
Megha A. Deshmukh, Giorgio Zoppellaro, Emiliano Fonda, Lukáš Zdražil, Shounik Paul, David Panáček, Hanuman Thorat, Zdeněk Badura, Michele Melchionna, Manuela Bevilacqua, Paolo Fornasiero, Klaus Müllen, Radek Zbořil, Aristides Bakandritsos   +13 more
wiley   +1 more source

High-Precision Isotopic Analysis of Cu and Fe via Multi-Collector Inductively Coupled Plasma-Mass Spectrometry Reveals Lipopolysaccharide-Induced Inflammatory Effects in Blood Plasma and Brain Tissues

Frontiers in Chemistry, 2022
The concentration and the isotopic composition of the redox-active essential elements Cu and Fe were investigated in blood plasma and specific brain regions (hippocampus, cortex, brain stem and cerebellum) of mice to assess potential alterations ...
Kasper Hobin, Marta Costas-Rodríguez, Elien Van Wonterghem, Elien Van Wonterghem, Roosmarijn E. Vandenbroucke, Roosmarijn E. Vandenbroucke, Frank Vanhaecke   +6 more
doaj   +1 more source