Results 31 to 40 of about 5,416,961 (253)

Application of atomic spectroscopy for trace element analysis of fruit juices: A review [PDF]

BIO Web of Conferences
Trace elements are crucial for human nutrition, requiring their precise analysis in fruit juices to ensure product quality and assess contamination risks.
Hemachandra Pavithra, Bencs László, Ajtony Zsolt   +2 more
doaj   +1 more source

Ionic Precursors Transformed Into Vinyl Acetate Synthesis Catalyst via Reaction‐Driven Restructuring

Advanced Functional Materials, EarlyView.
This work demonstrates that a simple physical mixture of Pd and Au ionic precursors, KOAc promoter, and SiO2 support can transform into a highly active vinyl acetate synthesis catalyst through reaction‐driven restructuring. The results highlight reaction‐induced restructuring as an innovative and sustainable catalyst design strategy.
Byeong Jun Cha, Welman C. Elias, Hunter P. Jacobs, Kimberly N. Heck, Saghar Rezaie, Sadegh Yazdi, Kiheon Hong, Justin J. Dodson, Laiyuan Chen, Sean G. Mueller, Steven R. Alexander, Michael S. Wong   +11 more
wiley   +1 more source

Estudo comparativo de métodos de preparo de amostras de tinta para a determinação de metais e metalóides por técnicas de espectrometria atômica Paint samples preparation methods for metals and methaloids determination by atomic spectrometry techniques

Química Nova, 2009
This work deals with paint decomposition methods for major, minor and trace elements determination. Three methods were investigated: (1) decomposition in closed quartz vessel and heating in microwave oven; (2) decomposition in open vessel using HNO3 and ...
Fabrina R. S. Bentlin, Dirce Pozebon, Fernanda dos Santos Depoi   +2 more
doaj   +1 more source

Matrix-type certified reference materials for quality control of metal determination from solid environmental and vegetation samples

Romanian Journal of Ecology & Environmental Chemistry, 2020
In the context of monitoring environmental factors, metals are one of the major analytical components. Applying appropriate determination methods and obtaining accurate results is a requirement imposed on environmental laboratories that perform quality ...
Anda-Gabriela Tenea, Gabriela Geanina Vasile, Gina Alina Catrina, Mihaela Mureseanu   +3 more
doaj   +1 more source

Spatially Regulated Lithium Plating via Li2O‐Rich Interphase Enables Durable Fast‐Charging Hybrid Lithium Batteries

Advanced Functional Materials, EarlyView.
A Li2O‐rich solid electrolyte interphase (SEI) is engineered on graphite through a propylene carbonate‐based electrolyte to spatially regulate Li plating. The homogeneous interphase lowers Li nucleation barriers, promotes conformal Li deposition around graphite particles, and suppresses dendritic accumulation, enabling durable hybrid Li‐ion/Li‐metal ...
Robert Kuphal, Jingjing Liu, Junxiang Liu, Tao Ma, Yi Ding, Mahmood Haq, Satish Udpa, Stephen J. Harris, Chengcheng Fang   +8 more
wiley   +1 more source

Cereal grain mineral micronutrient and soil chemistry data from GeoNutrition surveys in Ethiopia and Malawi

Scientific Data, 2022
Measurement(s) Trace Element • soil chemical properties Technology Type(s) Inductively-Coupled Plasma Mass Spectrometry Factor Type(s) Geography • Staple cereal crop Sample Characteristic - Organism Staple cereal food crops Sample Characteristic ...
D. B. Kumssa, A. W. Mossa, T. Amede, E. L. Ander, E. H. Bailey, L. Botoman, C. Chagumaira, J. G. Chimungu, K. Davis, S. Gameda, S. M. Haefele, K. Hailu, E. J. M. Joy, R. M. Lark, I. S. Ligowe, S. P. McGrath, A. Milne, P. Muleya, M. Munthali, E. Towett, M. G. Walsh, L. Wilson, S. D. Young, I. R. Haji, M. R. Broadley, D. Gashu, P. C. Nalivata   +26 more
doaj   +1 more source

Coordination‐Modulated Catalytic Pathways at Carbon Dots‐Supported Single‐Atom Sites Revealed by Thiol Interactions

Advanced Functional Materials, EarlyView.
Carbon dots‐supported single‐atom catalysts provide a model platform for uncovering how coordination interactions regulate catalytic reactivity. Thiol binding at Ru‒N4 centers reshapes the reaction energy landscape of H2O2 activation, dynamically modulating ROS‐generation pathways through electronic‐structure perturbation.
Yihong Chen, Li Zhang, Qian Dong, Qingshi Liu, Kun Wang, Huiping Wang, Shaomin Shuang, Chuan Dong, Jin‐Chang Guo, Xiaojuan Gong, Zhuo Chen, Yingfu Li   +11 more
wiley   +1 more source

Desenvolvimento de método HG-ICP OES para determinação simultânea de arsênio e selênio [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Química, Florianópolis, 2014No presente trabalho são descritas as etapas de desenvolvimento eimplantação de uma rotina analítica ...
Zappelini, Aline Iara
core  

Determination of strontium content in different dairy products by inductively coupled plasma mass spectrometry [PDF]

Zhongguo niangzao
An analytical method for determining the strontium content in different dairy products was established through inductively coupled plasma mass spectrometry (ICP-MS). After microwave digestion treatment of the samples, the content of strontium element was
HUANG Xiaoyan, TANG Shuo, LIU Lijun, LI Cuizhi, WU Xiaoli, NING Yuelian, YUE Hong
doaj   +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