Results 81 to 90 of about 5,416,961 (253)

Overcoming Pulse Mixing and Signal Tailing in Laser Ablation Inductively couplet Plasma Mass Spectrometry Depth Profiling

, 2005
The laser ablation-induced plasma was used as a composition-controlled source for ion implantation in Si crystals. Then, laser ablation in combination with inductively coupled plasma mass spectrometry was used for the elemental depth profiling of the ...
BELLONI, fabio, DORIA, Domenico, OVERCOMING PULSE MIXING AND SIGNAL TAILING IN LASER ABLATION INDUCTIVELY COUPLET PLASMA MASS SPECTROMETRY DEPTH PROFILING, LORUSSO, ANTONELLA, D. BLEINER, NASSISI, Vincenzo, J. A.N.A.L. A.T. SPECTOM   +6 more
core  

Emprego do dietilditiofosfato de amônio para separação da matriz e pré-concentração do analito em sistema FI-ICP-MS / [PDF]

, 1999
Tese (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em ...
Dressler, Valderi Luiz
core  

A Universal van der Waals Tunneling Injector for Monolayer CMOS

Advanced Materials, EarlyView.
A universal van der Waals injector unlocks polarity‐flexible tunneling contacts for monolayer CMOS. SnSe2, an intrinsically degenerate 2D semiconductor, establishes polarity‐specific band alignments with both WSe2 and MoS2 channels, enabling steep switching, high on/off ratios, and a unified route to low‐power 2D logic.
Hanbin Cho, Jing Huang, Seonguk Yang, Subin Im, Sangwoo Park, Jeongin Yeo, Sungyeon Kim, Gilhwan Do, Wenxuan Zhu, Soobeom Shin, Jongwon Lee, Yongjoon Shin, Do‐Sun Lee, Hu Young Jeong, Tae‐Eon Park, Jun Kang, Kyungmin Ko, Joonki Suh   +17 more
wiley   +1 more source

Determinação de elementos terras raras em amostras de catalisadores gastos e estudos de interferências por íons poliatômicos em espectrometria de massa com plasma indutivamente acoplado e célula de reação [PDF]

, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014A determinação de elementos terras raras (REE) em amostras de catalisadores gastos provenientes ...
Silva, Jessee Severo Azevedo
core  

Trace element analysis of extraterrestrial metal samples by inductively coupled plasma mass spectrometry: the standard solutions and digesting acids

, 2016
RATIONALE: Nearly 99% of the total content of extraterrestrial metals is composed of Fe and Ni, but with greatly variable trace element contents. The accuracy obtained in the inductively coupled plasma mass spectrometry (ICP-MS) analysis of solutions of ...
Wang, Guiqin, Lin, Yangting, Yangting Lin, Guiqin Wang, Wu, Yangsiqian, Yangsiqian Wu   +5 more
core   +1 more source

Sub‐Nanometer Cobalt on Tungsten Titanium Carbide MXene (W2TiC2Tx): An Electrocatalyst for Highly Efficient and Stable Alkaline Hydrogen Evolution at Industrial‐Scale Current Density

Advanced Materials, EarlyView.
A novel W2TiC2Tx MXene prepared through a MAX‐phase route supports sub‐nanometer Co for highly efficient alkaline hydrogen evolution. Strong Co–W interfacial interactions optimize hydrogen adsorption and catalytic activity, enabling low overpotentials of 63 mV at 10 mA cm−2, small Tafel slope of 44.3 mV dec−1, and exceptional durability at industrially
Xiaopeng Liu, Fan Yang, Deep M. Patel, Mohammad Albloushi, Qiqi Mao, Shan Jiang, Christian J. Breckner, Connor W. Schroeder, Ruoyu Cui, Tao Ma, Dapeng Jing, Wenyu Huang, Jeffrey T. Miller, Wenzhen Li, Luke T. Roling, Yue Wu   +15 more
wiley   +1 more source

Determinação de elementos traço em carvão por espectrometria de absorção atômica de alta resolução com fonte contínua e por espectrometria de massa com plasma indutivamente acoplado e vaporização eletrotérmica [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.Neste trabalho, o desenvolvimento de método para determinação de Cd e Pb por espectrometria de absorção ...
Borges, Daniel Lázaro Gallindo
core  

Determination of 34 Elements in Ground Substrate of Black Soil by ICP-MS/OES with Alkali Melting Digestion

Yankuang ceshi
The organic matter content in black soil samples is high, typically ranging from 3% to 10%. Traditional pretreatment methods such as open acid dissolution digestion, microwave acid dissolution and digestion, high-pressure closed acid dissolution and ...
Haiyue YU, Qi ZHANG, Bing LU, Chenhao HAN, Taoyuan WANG, Mingliang LI   +5 more
doaj   +1 more source

Engineering Metal‐Pocket Cooperativity in Single‐Atom COF Nanozymes for Selective Cascade Catalysis

Advanced Materials, EarlyView.
A multilevel programming strategy is developed to engineer single‐atom COF nanozymes with tunable metal centers and chiral pockets inspired by heme–pocket cooperativity. This approach enables controlled metal–pocket interplay for asymmetric cascade catalysis, delivering high activity, selectivity, and recyclability in an asymmetric oxidation–aldol ...
Ziping Li, Qijun Sun, Yawen Hao, Haotian Wen, Shery Chang, Fengwang Li, Jiangtao Xu, Kang Liang   +7 more
wiley   +1 more source

Determinação de elementos traço em diesel e biodiesel por espectrometria de emissão atômica em chama e por espectrometria de massa com plasma indutivamente acoplado com introdução da amostra por vaporização eletrotérmica [PDF]

, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.Este trabalho apresenta o desenvolvimento de metodologias para determinação de elementos traço em amostras de ...
Chaves, Eduardo Sidinei
core