Results 41 to 50 of about 15,754 (191)

Exploration of Extraction and Separation Techniques for Routine Trace Analysis of Organic Compounds in Water: Dispersive Liquid-Liquid Microextraction vs Liquid-Liquid Extraction

Journal of Chromatography Open, 2022
Dispersive liquid-liquid microextraction (DLLME) was compared to liquid-liquid extraction (LLE) in terms of the methods’ abilities to analyze samples and ultimately to provide information to an analyst.
Trevor A. Johnson, Michael D.S. Armstrong, A. Paulina de la Mata, James J. Harynuk   +3 more
doaj   +1 more source

Smith-Waterman peak alignment for comprehensive two-dimensional gas chromatography-mass spectrometry

BMC Bioinformatics, 2011
Background Comprehensive two-dimensional gas chromatography coupled with mass spectrometry (GC × GC-MS) is a powerful technique which has gained increasing attention over the last two decades.
Koo Imhoi, Kim Seongho, Fang Aiqin, Zhang Xiang   +3 more
doaj   +1 more source

Volatile Metabolites in Lavage Fluid Are Correlated with Cytokine Production in a Valley Fever Murine Model

Journal of Fungi, 2023
Coccidioides immitis and Coccidioides posadasii are soil-dwelling fungi of arid regions in North and South America that are responsible for Valley fever (coccidioidomycosis). Forty percent of patients with Valley fever exhibit symptoms ranging from mild,
Emily A. Higgins Keppler, Marley C. Caballero Van Dyke, Heather L. Mead, Douglas F. Lake, D. Mitchell Magee, Bridget M. Barker, Heather D. Bean   +6 more
doaj   +1 more source

Quantitative carbon distribution analysis of hydrocarbons, alcohols and carboxylic acids in a Fischer-Tropsch product from a Co/TiO2 catalyst during gas phase pilot plant operation

Journal of Analytical Science and Technology, 2020
Comprehensive two-dimensional gas chromatography (GCxGC) analysis for 1-alcohols and gas chromatography–mass spectrometry (GC-MS) analysis for carboxylic acids, derivatised as their methyl esters, have been applied to liquid and wax Fischer-Tropsch (FT ...
Roy Partington, Jay Clarkson, James Paterson, Kay Sullivan, Jon Wilson   +4 more
doaj   +1 more source

Restoration for Comprehensive Two-Dimensional Gas Chromatography [PDF]

2005 IEEE International Conference on Electro Information Technology, 2006
This paper develops an approach for restoration of data from comprehensive two-dimensional gas chromatography (GCtimesGC), a powerful new technology for chemical separations. GCtimesGC restoration is required to separate coeluting (i.e., overlapping) peaks. The GCtimesGC process is modeled as a two-dimensional linear, shift-variant system, based on the
null Jiazheng Shi, S.E. Reichenbach
openaire   +1 more source

Region of interest selection for GC×GC–MS data using a pseudo fisher ratio moving window with connected components segmentation

Journal of Chromatography Open, 2023
Comprehensive two-dimensional gas chromatography mass spectrometry (GC×GC–MS) data present several challenges for analysis largely because chemical factors drift along the chromatographic modes across different chromatographic runs, and there is ...
Ryland T. Giebelhaus, A. Paulina de la Mata, James J. Harynuk   +2 more
doaj   +1 more source

Silver Ion‐Mediated [hk1]‐Oriented Sb2Se3 Crystal Growth for Efficient Photoelectrochemical Hydrogen Evolution

Advanced Functional Materials, EarlyView.
Ag+‐mediated hydrothermal crystal engineering promotes preferential [hk1]‐oriented growth of Sb2Se3 via an ultrathin MoOx interlayer, improving crystallinity and suppressing non‐radiative recombination. The optimized Ag+ treatment photocathode delivers 24.7 mA cm−2 at 0 VRHE and improved stability, revealing an ion‐modulated route to high‐performance ...
Ziying Zhang, Zhenbin Wang, Mirjana Dimitrievska, Miloš Baljozović, Yongping Gan, Pardis Adams, Sanghyun Bae, Thomas Moehl, Wenzhe Niu, Xiang jiu Guan, S. David Tilley   +10 more
wiley   +1 more source

Novel Functional Materials via 3D Printing by Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov, Patrick Fesser, Boris A. Bulgakov, Ulrich S. Schubert   +3 more
wiley   +1 more source

Dual‐Site Ru Single‐Atoms and RuP Nanoclusters on N, P, and B Co‐Doped Porous Carbon for Efficient Alkaline HER and AEM Water Electrolysis

Advanced Functional Materials, EarlyView.
Ru single atoms and RuP nanoclusters are co‐anchored in N, P, and B co‐doped porous carbon nanospheres via in situ carbonization/phosphidation of a boronate polymer precursor. RuP activates water, while nearby Ru single atoms accelerate H2 formation through H* transfer. The catalyst delivers low overpotential and high durability in alkaline HER and AEM
Xiaohong Wang, Juguo Dai, Dongxu Li, Jianghua Wu, Hucheng Fu, Yiting Xu, Xueqiang Qi, Qian Xue, Yanbin Shen, Xiaoqing Pan, Conghui Yuan, Shuifen Xie, Andreu Cabot, Lizong Dai   +13 more
wiley   +1 more source

Temperature-tunable selectivity in comprehensive two-dimensional gas chromatography [PDF]

Journal of Chromatography A, 2012
A temperature-tunable two-dimensional gas chromatography setup, consisting of three capillary columns with different selectivity, is described. In this setup the selectivity of the primary dimension can be tuned by adjusting the temperature offset of two in series-coupled capillary columns, both columns being part of the primary dimension and ...
Mommers, J., Knooren, J., Dutriez, T., Ritzen, E., van der Wal, S.   +4 more
openaire   +4 more sources