Results 21 to 30 of about 402,247 (342)

Determination of wholesome elements and heavy metals in safflower (Carthamus tinctorius L.) from Xinjiang and Henan by ICP-MS/ICP-AES

Journal of Pharmaceutical Analysis, 2011
An inductively coupled plasma mass spectrometry (ICP-MS) or inductively coupled plasma atomic emission spectrometry (ICP-AES) was developed to determine 19 elements in safflower, a traditional Chinese medicinal herb from Xinjiang Autonomous Region and ...
Ling-Han Jia, Yi Li, Yu-Zhen Li
doaj   +1 more source

Inductively Coupled Plasma Mass Spectrometry: Introduction to Analytical Aspects.

Clinical biochemist reviews, 2019
Inductively coupled plasma mass spectrometry (ICP-MS) is an analytical technique that can be used to measure elements at trace levels in biological fluids.
Scott Wilschefski, Matthew Baxter
semanticscholar   +1 more source

Interaction between electric field and plasma in inductively coupled discharges

AIP Advances, 2022
In regard to collisionless heating in inductively coupled discharges, two approaches have been widely adopted to describe the energy transfer between electrons and the radio frequency field.
Jun Tao, Nong Xiang, Yemin Hu, Yueheng Huang, Chunyun Gan, Taotao Zhou   +5 more
doaj   +1 more source

Influence of Additive N₂ on O₂ Plasma Ashing Process in Inductively Coupled Plasma

Nanomaterials, 2022
One of the cleaning processes in semiconductor fabrication is the ashing process using oxygen plasma, which has been normally used N2 gas as additive gas to increase the ashing rate, and it is known that the ashing rate is strongly related to the ...
Ye-Bin You, Young-Seok Lee, Si-Jun Kim, Chul-Hee Cho, In-Ho Seong, Won-Nyoung Jeong, Min-Su Choi, Shin-Jae You   +7 more
doaj   +1 more source

Atomic layer etching of SiO2 with Ar and CHF 3 plasmas: A self-limiting process for aspect ratio independent etching [PDF]

, 2019
With ever increasing demands on device patterning to achieve smaller critical dimensions, the need for precise, controllable atomic layer etching (ALE) is steadily increasing.
Cabrini, S, Cooke, M, Dallorto, S, Goodyear, A, Kastl, C, Rangelow, IW, Schwartzberg, A, Szornel, JE, Ward, C   +8 more
core   +1 more source

Antigua fundición de plomo en el sitio inca de Curamba, departamento de Apurímac, Perú

Bulletin de l'Institut Français d'Études Andines, 2012
Since 16th century, the Inca site of Curamba, Department of Apurímac, in southern Peru, has been interpreted as a metallurgical center for processing silver ore. However, there was no physical evidence such as fragments, or other indicators of the use of
William E. Brooks, Luisa Vetter Parodi
doaj   +1 more source

Analytical validation of an inductively coupled plasma mass spectrometry method for urinary iodine concentration measurements in Taiwan

Journal of the Formosan Medical Association, 2023
Background: Urinary iodine concentration (UIC) measured by Sandell-Kolthoff spectrophotometric method has been used in the Nutrition and Health Surveys in Taiwan but this method is time consuming and produces toxic waste from arsenic trioxide. The aim of
Chun-Jui Huang, Lin-Hsuan Lee, Cheng-Pin Cheng, Harn-Shen Chen, Chii-Min Hwu, Kam-Tsun Tang, Chiao-Wei Shih, Chang-Ching Yeh, Fan-Fen Wang, Chen-Chang Yang   +9 more
doaj   +1 more source

The ion-acoustic instability of the inductively coupled plasma driven by the ponderomotive electron current formed in the skin layer

, 2020
The stability theory of the inductively coupled plasma (ICP) is developed for the case when the electron quiver velocity in RF wave is of the order of or is larger than the electron thermal velocity. The theory predicts the existence the instabilities of
Lee, Hae June, Mikhailenko, V. S., Mikhailenko, V. V.   +2 more
core   +1 more source

Estudo Experimental e Teórico dos Processos no Plasma ICP-AES Não-Estacionário

Trends in Computational and Applied Mathematics, 2000
Foram experimentalmente estudadas as pulsações transversais da tocha de plasma com simetria cilíndrica ICP-AES (Inductively Coupled Plasma Atomic Emission Spectroscopy).
R. Toukhvatoulline, H. Bonadiman, M. Pieniz   +2 more
doaj   +1 more source

Determination of Metals Content in Wine Samples by Inductively Coupled Plasma-Mass Spectrometry

Molecules, 2018
Knowledge about the metal content of wine is very important, for many reasons. Depending on the element, its quantity varies in wine from ng/L to mg/L.
J. Płotka-Wasylka, M. Frankowski, V. Simeonov, Ż. Polkowska, J. Namieśnik   +4 more
semanticscholar   +1 more source