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1.903 Aktuelle Fachpublikationen in Journal of Analytical Atomic Spectrometry
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03.07.2018 | Alan Lima Vieira; Kelber Miranda; Alex Virgílio; Edilene Cristina Ferreira; J.A. Gomes Neto, Journal of Analytical Atomic Spectrometry, 2018
In this work, an improved conductively-heated digestion system (CHDS) with closed-vessels, which provides simpler, easier and safer digestions of raw chicken, beef and pork meat samples aiming for Ca, Cu, Fe, K, Mg, Mn, Na, P, S, and Zn determinations by ICP OES and As, Cd, Cr, Mo, Pb and Se by ...
03.07.2018 | Johanna Christina Obert; Denis Scholz; Jörg Lippold; Thomas Felis; Klaus Peter Jochum; Meinrat O. Andreae, Journal of Analytical Atomic Spectrometry, 2018
Diagenetic alteration of fossil reef corals may have severe effects on the reliability of 230Th/U-ages. The widely applied criteria introduced to test for the reliability of coral 230Th/U-ages are often not sufficient to identify all altered ages. The combination of 230Th/U- with 231Pa/U-dating ...
03.07.2018 | Wryan Helmeczi; William Erick Helmeczi; Laura Agnes Baker; Yong Wang; I D Brindle, Journal of Analytical Atomic Spectrometry, 2018
In this paper, we explore a variety of aqueous digestion techniques for the determination of gold, in a wide variety of mineral matrices. These include feldspar, basalt, pyrites, and other gold-containing minerals. The acid-based digestion methods compete effectively with fire assay to deliver ...
03.07.2018 | Robert Clough; Chris F. Harrington; Steve J. Hill; Yolanda Madrid; Julian F. Tyson, Journal of Analytical Atomic Spectrometry, 2018
This is the tenth Atomic Spectrometry Update (ASU) to focus on advances in elemental speciation and covers a period of approximately 12 months from December 2016. This ASU review deals with all aspects of the analytical atomic spectrometry speciation methods developed for: the determination of ...
03.07.2018 | Maximilian Bonta; Andreas Limbeck, Journal of Analytical Atomic Spectrometry, 2018
Nowadays, metal analysis in polymers is experiencing growing interest due to increased environmental regulations and the need for sustainable polymer recycling strategies. Quick and reliable analyses are required to fulfill the demands of today’s industry. Due to high chemical inertness of most ...
27.06.2018 | T. Delgado; Jose M Vadillo; J J Laserna, Journal of Analytical Atomic Spectrometry, 2018
Abstract. A new excitation scheme for direct analysis of organic compounds in condensed phase is described. The approach consists on the combined use of two laser-ablation based techniques (laser-ionization mass spectrometry - LIMS, and laser-induced breakdown spectrometry - LIBS) within a common ...
20.06.2018 | Alexandrina A. C. Carvalho; Flavio O. Leme; Maciel S. Luz; Pedro V. Oliveira; Cassiana S. Nomura, Journal of Analytical Atomic Spectrometry, 2018
The direct analysis of high silicon content samples by Laser-Induced Breakdown Spectrometry (LIBS) is a good alternative, since the decomposition of samples with refractory characteristics is not an easy task. However, poor precision and difficulty in performing quantitative analysis due to ...
12.06.2018 | Lianbo Guo; Yangmin Guo; Zhongqi Hao; Yun Tang; Shixiang Ma; Qingdong Zeng; Shi-Song Tang; Xiangyou Li; Yong-Feng Lu ..., Journal of Analytical Atomic Spectrometry, 2018
The quantitative analysis of iron ore by laser-induced breakdown spectroscopy (LIBS) is usually complicated due to the nonlinear self-absorption and matrix effects. To overcome this challenge, a hybrid sparse partial least squares (SPLS) and least-squares support vector machine (LS-SVM) model was ...
12.06.2018 | Ignacio Machado; Sebastián Mondutey; Valeria Arce; Natalia Pastorino; Mariela Pistón, Journal of Analytical Atomic Spectrometry, 2018
A simple, fast, and environmentally friendly method for sample preparation and subsequent determination of Cu, Fe, Mn, and Zn in wheat flour using total reflection x-ray fluorescence (TXRF) was developed and validated. Furthermore, TXRF and two other analytical techniques currently used for ...
12.06.2018 | wanfeng zhang; Xiaoping XIA; Yanqiang Zhang; Touping Peng; Qing Yang, Journal of Analytical Atomic Spectrometry, 2018
Secondary ion mass spectrometry (SIMS) has been applied to analyze a wide range of material for earth science research due to its high sensitivity, high precision and capacity for in-situ micro-analyses. This technique operates under ultra-high vacuum (UHV) conditions, especially for water ...
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