Results 61 to 70 of about 3,686 (163)

Illicit Drug‐Derived Volatile Organic Compounds as Markers for Application in Noncontact Detection Technology

The Chemical Record, Volume 26, Issue 3, March 2026.
This review highlights the characteristic odor markers of illicit drugs, emphasizing volatile markers from both natural and synthetic sources, and explores the shift from canine‐based detection to emerging noncontact sensing technologies. Illicit drug use remains a global concern, requiring effective detection methods to counter evolving concealment ...
Minwoo Kim, Solpa Lee, Anmo J. Kim, Cong Wang, Yongwoo Jang   +4 more
wiley   +1 more source

Untargeted Profiling of Fungicide Resistance‐Related Extracellular Metabolites of Phytophthora infestans Using Two‐Dimensional Gas Chromatography Coupled With Time‐of‐Flight Mass Spectrometry

Plant Pathology, Volume 75, Issue 2, March/April 2026.
Untargeted extracellular metabolite profiling of fungicide‐resistant and ‐sensitive strains of Phytophthora infestans revealed that several pathways were regulated to develop fungicide resistance, and the resistant strain showed a stronger (time‐ and dose‐dependent) metabolic response under fungicide exposure, and resistance was associated with a ...
Segun O. Babarinde, Prashant More, Khalil Al‐Mughrabi, Rick D. Peters, Samuel K. Asiedu, Chijioke Emenike, Sekar Nishanth, Balakrishnan Prithiviraj   +7 more
wiley   +1 more source

Evaluation of the Performance of Cryogen-Free Thermal Modulation-Based Comprehensive Two-Dimensional Gas Chromatography-Time-of-Flight Mass Spectrometry (GC×GC-TOFMS) for the Qualitative Analysis of a Complex Bitumen Sample

Separations, 2020
Historically, one-dimensional gas chromatography combined with mass spectrometry (GC/MS) has been employed in the analysis of petrochemical samples such as diesel, crude oil and bitumen.
Haleigh Boswell, Kieran Tarazona Carrillo, Tadeusz Górecki   +2 more
doaj   +1 more source

Comprehensive Two-Dimensional Gas Chromatography for Analysis of Volatile Compounds in Foods and Beverages [PDF]

, 2011
A cromatografia gasosa bidimensional abrangente (GC×GC) é uma técnica analítica relativamente nova, que tem sido amplamente empregada para análise de vários tipos de amostras complexas.
Cláudia Alcaraz Zini, Juliane Elisa Welke   +1 more
core   +2 more sources

Diurnal Trends Differentiate Anthropogenic and Biogenic Terpenes in the Los Angeles Basin

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Terpenoids play a significant role in the formation of tropospheric ozone and secondary organic aerosol. While terpenoids are largely attributed to biogenic sources, they are also widely used in consumer products that end up in the atmosphere.
Afsara Tasnia, Zhizhao Wang, Christos Stamatis, Barbara Barletta, Simone Meinardi, Chelsea E. Stockwell, Matthew M. Coggon, Jessica B. Gilman, Carsten Warneke, Katherine Ball, John D. Crounse, John H. Seinfeld, Paul O. Wennberg, Donald R. Blake, Kelley C. Barsanti   +14 more
wiley   +1 more source

Comparison of head space solid phase micro extraction with conventional and comprehensive gas chromatography mass spectrometry for volatile profiling of Irish whiskey

Talanta Open
Whiskey is a traditional distilled product produced on the island of Ireland that is currently experiencing a major expansion in export volume. Different styles of Irish whiskey exist, however only some very limited published information exists on the ...
Thomas J. Kelly, David T. Mannion, Christine O'Connor, Kieran N. Kilcawley   +3 more
doaj   +1 more source

Avaliação quantitativa dos compostos voláteis de vinhos analisados através da GC×GC. [PDF]

, 2014
SIMCRO
LAZZAROTTO, M., MAYER, F. M., WELKE, J. E., ZANUS, M., ZINI, C. A.   +4 more
core  

Molecular structure retention relationships in comprehensive two-dimensional gas chromatography [PDF]

, 2004
Comprehensive two-dimensional gas chromatography (GC x GC) offers new opportunities to develop relationships between molecular structure and retentions in the two dimensional (2D) separation space defined by the GC x GC retention in each dimension ...
Hugel, H, Marriott, P, Massill, T
core   +1 more source

Recent Contributions of Organic Synthesis to Forensic Science

ChemPlusChem, Volume 91, Issue 2, February 2026.
Forensic science is a multidisciplinary field that plays a vital role in providing scientific evidence for criminal investigations. This review highlights advances and opportunities at the interface between organic synthesis and forensic science, with applications in drug identification, forensic toxicology, and latent fingerprint detection and ...
Gustavo dos Santos Martins, Mariana dos Santos Dupim, Rodrigo Garcia Agostinho, Fernanda Gadini Finelli   +3 more
wiley   +1 more source

Comparative Phytochemical Analyses and Metabolic Profiling of Different Phenotypes of Chinese Cabbage (Brassica Rapa ssp. Pekinensis)

Foods, 2019
This study aimed to comprehensively examine the interface between primary and secondary metabolites in oval- and rectangular-shaped Chinese cabbage (Brassica rapa ssp. pekinensis) using gas chromatography coupled with time-of-flight mass spectrometry (GC-
Chang Ha Park, Hyeon Ji Yeo, Soo-Yun Park, Jae Kwang Kim, Sang Un Park   +4 more
doaj   +1 more source