Results 81 to 90 of about 471,738 (360)

Profile aromatic of essential oil of ginger (Zingiber officinale var. grand cayman) grown in the region of Chinantla [PDF]

, 2012
Ginger (Zingiber officinale) is a rhizome native to Asia. In "The Chinantla" region of Oaxaca, Mexico is being cultivated ginger of Grand Cayman variety with high production. The rhizome of ginger is very aroma1tiic, spicy flavor and smell. The main form
Lebrun, Marc, Paz-Gamboa, E., Pérez Silva, Araceli, Salgado-Cervantes, Marco, Tavares-Gonzalez, Fabiola, Vivar-Vera, M.A.   +5 more
core  

Application of direct bioautography and SPME-GC-MS for the study of antibacterial chamomile ingredients [PDF]

, 2012
The isolation and characterization of antibacterial chamomile components were performed by the use of direct bioautography and solid phase microextraction (SPME)-GC-MS.
Adams R.P., Afek U., Aggag M.E., Al-Ismail K.M., Arias Abrodo P., Arthur C.L., Berry M., Bisset N.G., Botz L., Choma I.M., Cinco M., Daniel M., Dóra Kertesy, Eloff J.N., Ernő Tyihák, Iordache A., Lis-Balchin M., Lord H., McKay D.L., Mincsovics E., Mincsovics E., Mincsovics E., Móricz M., Móricz M., Móricz M., Ojala T., Péter Ott, Repcák M., Riu-Aumatell M., Soliman K.M., Srivastava J.K., Szabolcs Szarka, Szőke, Szőke, Szőke, Tyihák E., Tyihák E., Weins C., Ágnes Móricz, Éva Héthelyi, Éva Szőke   +40 more
core   +1 more source

Photocatalytic Versus Stoichiometric Hydrogen Generation Using Mesoporous Silicon Catalysts: The Complex Role of Sacrificial Reagents

Advanced Functional Materials, EarlyView.
This study highlights the importance of accounting for stoichiometric hydrogen produced when utilizing Si photocatalysts. The stoichiometric contribution is sacrificial reagent dependent and decreases with increasing sterics around the catalyst surface.
Sarrah H. Putwa, Sarah A. Martell, Berthold Reis, Simona Schwarz, Mita Dasog   +4 more
wiley   +1 more source

Unraveling the formation of key aroma compounds in roasted pork during air frying: A complementary approach using GC-IMS, GC-O-MS, and GC × GC–MS

Food Chemistry: X
The change of aroma fingerprint and its corresponding precursors during pork roasting remains unclear. The formation of key aroma compounds in roasted pork was determined through multidimensional mass spectrometry.
Huan Liu, Shuqi Zhao, Jingyu Li, Xinhe Zhang, Wenjing Li, Chanchan Sun, Chengyu Zeng, Cheng Li, Jiangyan Yu, Fengxue Zhang, Junke Li   +10 more
doaj   +1 more source

Innovative methodology to transfer conventional GC-MS heroin profiling to UHPLC-MS/MS [PDF]

, 2018
Nowadays, in forensic laboratories, heroin profiling is frequently carried out by gas chromatography coupled with mass spectrometry (GC-MS). This analytical technique is well established, provides good sensitivity and reproducibility, and allows the use ...
Broséus, J., Debrus, B., Esseiva, P., Guillarme, D., Hubert, P., Lebrun, P., Rudaz, S., Veuthey, J.-L   +7 more
core  

CO2 Reduction on Copper‐Nitrogen‐Doped Carbon Catalysts Tuned by Pulsed Potential Electrolysis: Effect of Pulse Potential

Advanced Functional Materials, EarlyView.
This study demonstrates that pulsed potential electrolysis significantly improves CO2 reduction performance on copper‐nitrogen doped carbon electrodes. The formation of cationic copper sites and metallic clusters as a function of applied intermittent potential leads to notable selectivity changes compared to potentiostatic reduction.
Dorottya Hursán, Janis Timoshenko, Andrea Martini, Hyo Sang Jeon, Eduardo Ortega, Martina Rüscher, Arno Bergmann, Aram Yoon, Uta Hejral, Antonia Herzog, Clara Rettenmaier, Felix T. Haase, Philipp Grosse, Beatriz Roldan Cuenya   +13 more
wiley   +1 more source

Accuracy Profile Validation of a New Analytical Method for Propane Measurement Using Headspace-Gas Chromatography-Mass Spectrometry [PDF]

, 2017
Propane can be responsible for several types of lethal intoxication and explosions. Quantifying it would be very helpful to determine in some cases the cause of death.
Augsburger, Marc, Smith, Fiona, Varlet, Vincent   +2 more
core  

Influence of extraction methods on the composition of essential oils of Achillea millefolium L. from Lithuania [PDF]

, 2014
In this study, flowering aerial parts of Achillea millefolium were used as a matrix for supercritical CO2 extraction (SFE) of volatile oil. The collected extracts were analyzed by GC-FID and GC-MS methods and their composition were compared with that of ...
Bagdonaite, E., Falconieri, D, Marzouki, H, PIRAS, ALESSANDRA, PORCEDDA, SILVIA   +4 more
core   +1 more source

Transparent Inorganic–Organic Bilayer Neural Electrode Array and Integration to Miniscope System for In Vivo Calcium Imaging and Electrophysiology

Advanced Functional Materials, EarlyView.
This study presents the BioCLEAR system, a highly transparent and conductive neural electrode array composed of silver nanowires (AgNWs) and doped PEDOT:PSS, enabling neural recordings with minimal optical artifacts. When integrated with a GRIN lens, this cost‐effective neural implant allows simultaneous electrophysiological recording and GCaMP6‐based ...
Dongjun Han, Kevin Cheng, Swathy Sampath Kumar, Anil Bollimunta, Elizabeth E. Torr, Juhwan Kim, Kyoungmin Kim, Hyungjun Choi, Seongkwon Hwang, Sarah Brodnick, David Cheng, Lindsay Gray, Yei Hwan Jung, William L. Murphy, Aaron J. Suminski, Jonathan J. Nassi, Justin C. Williams, Dong‐Wook Park   +17 more
wiley   +1 more source

Profiling Croatian Whisky Using GC/MS-MS and UHPLC-QTOF

Applied Sciences
This study investigates the chemical profiling of Croatian whisky using advanced analytical techniques: Solid-phase microextraction followed by gas chromatography coupled to mass spectrometry (SPME-GC-MS) and ultra-high-performance liquid chromatography ...
Ante Lončarić, Aly Castillo, Maria Celeiro, Borislav Miličević, Hrvoje Bušić, Tomo Anadolac, Ana-Marija Gotal Skoko, Marta Lores   +7 more
doaj   +1 more source