Results 21 to 30 of about 16,149 (208)

Investigation of Kerosene used as Fire Accelerant Remaining on Different Kinds of Fabrics

Arab Journal of Forensic Sciences & Forensic Medicine, 2019
In arson cases, the detection and identification of fire accelerants is of high importance for elucidation of such crimes. The present study aims to investigate the remaining fraction of kerosene hydrocarbons impregnated on four kinds of textiles (nylon,
Abdulrhman M. Dhabbah
doaj   +1 more source

A Hybrid Stainless-Steel SPME Microneedle Electrode Sensor for Dual Electrochemical and GC-MS Analysis

Sensors, 2023
A mechanically robust in-tube stainless steel microneedle solid phase microextraction (SPME) platform for dual electrochemical and chromatographic detection has been demonstrated.
Samuel M. Mugo, Scott V. Robertson, Marika Wood   +2 more
doaj   +1 more source

Methoxypyrazines in Sauvignon blanc wines, detection of addition of artificial aroma

Czech Journal of Food Sciences, 2009
Methoxypyrazines are the principal aroma components responsible for the vegetative and herbaceous green bell-pepper flavour of Sauvignon blanc wines produced in Moravia.
A. Rajchl, H. Čížková, M. Voldřich, D. Lukešová, Z. Panovská   +4 more
doaj   +1 more source

Improving the Physicochemical Properties, Organic Acids, Amino Acids, Volatile Organic Compounds, and Metabolites of Laohan Melon Juice Through Fermentation With Different Lactic Acid Bacteria

AgriFood: Journal of Agricultural Products for Food, EarlyView.
Fermentation with lactic acid bacteria could improve amino acids, volatile organic compounds (VOCs), and nonvolatile metabolites of Laohan melon juice (LMJ), which provides theoretical guidance for the development of Laohan melon beverage and advances knowledge of the metabolic mechanisms of VOCs in LMJ.
Yun Xie, Sihan Hou, Mingdong Tan, Jianqiao Jiang, Yue Hu, Yiwen Chen, Yongkang Li, Miao Cui, Jianming Niu, Weidong Cheng, Xilei Pu, Yuyun He, Feifei Gao   +12 more
wiley   +1 more source

A New Perspective on SPME and SPME Arrow: Formaldehyde Determination by On-Sample Derivatization Coupled with Multiple and Cooling-Assisted Extractions

Molecules, 2023
Formaldehyde (FA) is a toxic compound and a human carcinogen. Regulating FA-releasing substances in commercial goods is a growing and interesting topic: worldwide production sectors, like food industries, textiles, wood manufacture, and cosmetics, are ...
Stefano Dugheri, Giovanni Cappelli, Niccolò Fanfani, Jacopo Ceccarelli, Giorgio Marrubini, Donato Squillaci, Veronica Traversini, Riccardo Gori, Nicola Mucci, Giulio Arcangeli   +9 more
doaj   +1 more source

Do Governance Structures Drive Green Building Adoption? A Machine Learning Approach With Random Forests

Business Strategy and the Environment, EarlyView.
ABSTRACT This study examines the determinants of firms' propensity to adopt green buildings in the Euro Stoxx 300 and the S&P 500 indices, during 2012–2023. Using random forest binary classifiers, we assess the relative importance of financial, sectoral, geographic, and climate governance predictors and uncover nonlinear relationships often overlooked ...
María del Carmen Valls Martínez, José Manuel Santos‐Jaén, María Estefanía Sánchez Pacheco, Fernando José Zambrano Farías   +3 more
wiley   +1 more source

Stopper with Interchangeable Septa for SPME [PDF]

Journal of Chemical Education, 2009
Describes the use of round- and flat-bottom flasks and the modification of their stoppers for the analysis of volatile organic compounds by solid-phase microextraction.
Zoran Zdravkovski, Jordan Cavdarov
openaire   +1 more source

Methods to Detect Volatile Organic Compounds for Breath Biopsy Using Solid-Phase Microextraction and Gas Chromatography–Mass Spectrometry

Molecules, 2023
Volatile organic compounds (VOCs) are byproducts from metabolic pathways that can be detected in exhaled breath and have been reported as biomarkers for different diseases.
Eray Schulz, Mark Woollam, Paul Grocki, Michael D. Davis, Mangilal Agarwal   +4 more
doaj   +1 more source

Impact of Intermediate Wheatgrass as an Adjunct Ingredient on the Chemical Composition and Development of Aroma Compounds in Sake Brewing

Cereal Chemistry, EarlyView.
ABSTRACT Background Replacing a portion of polished rice with intermediate wheatgrass (IWG) could diversify raw materials for sake, but its effects on composition and fermentation outcomes are not well characterized. The objective of this study was to quantify how adjunct form (whole vs.
Takehiro Murai, Curtis Payne, George Amponsah Annor   +2 more
wiley   +1 more source

Solid phase microextraction for quantitative analysis – Expectations beyond design?

Green Analytical Chemistry, 2023
Solid phase microextraction (SPME) is a convenient, effective and green sample preparation technique, offering excellent compatibility with different chromatography methods.
Yada Nolvachai, Michelle S.S. Amaral, Riley Herron, Philip J. Marriott   +3 more
doaj   +1 more source