Detection of Δ9-tetrahydrocannabinol (THC) in hair using GC–MS
Egyptian Journal of Forensic Sciences, 2014 Detection of drugs from hair samples has become an imperative technique in forensic toxicological analysis. In this study, hair samples were collected from 20 cannabis users undergoing treatment at a rehabilitation center at different time intervals ...
Himanshu Khajuria, Biswa P. Nayak
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Comparison of GC/time-of-flight MS with GC/quadrupole MS for halocarbon trace gas analysis [PDF]
Atmospheric Measurement Techniques, 2015 We present the application of time-of-flight mass spectrometry (TOF MS) for the analysis of halocarbons in the atmosphere after cryogenic sample preconcentration and gas chromatographic separation.
J. Hoker +3 more
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Determination of 9 halogenated alkanes in toothpaste by GC⁃MS
Shanghai yufang yixue, 2023 ObjectiveTo establish a GC-MS method for the detection of 9 halogenated alkanes in toothpastes.MethodsVarious brands of toothpastes on the market were collected as the samples. Methanol was used as the extraction solution.
PENG Qian +3 more
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Determination of gamma-hydroxybutyric acid in dried blood spots using a simple GC-MS method with direct 'on spot' derivatization [PDF]
, 2010 The objective of this study was the development of an accurate and sensitive method for the determination of gamma-hydroxybutyric acid (GHB) in dried whole blood samples using a GC-MS method.
Ingels, Ann-Sofie +2 more
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Optimising a urinary extraction method for non-targeted GC–MS metabolomics
Scientific Reports, 2023 Urine is ideal for non-targeted metabolomics, providing valuable insights into normal and pathological cellular processes. Optimal extraction is critical since non-targeted metabolomics aims to analyse various compound classes.
Cara Olivier, Bianca Allen, Laneke Luies
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Analysis of gas chromatography/mass spectrometry data for catalytic lignin depolymerization using positive matrix factorization [PDF]
, 2018 Various catalytic technologies are being developed to efficiently convert lignin into renewable chemicals. However, due to its complexity, catalytic lignin depolymerization often generates a wide and complex distribution of product compounds.
Barrett, JA +7 more
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Identifying metabolites by integrating metabolome databases with mass spectrometry cheminformatics. [PDF]
, 2018 Novel metabolites distinct from canonical pathways can be identified through the integration of three cheminformatics tools: BinVestigate, which queries the BinBase gas chromatography-mass spectrometry (GC-MS) metabolome database to match unknowns with ...
A El-Tayeb +45 more
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Drying Enhances Signal Intensities for Global GC–MS Metabolomics
Metabolites, 2019 We report here that a straightforward change of the standard derivatization procedure for GC–MS metabolomics is leading to a strong increase in metabolite signal intensity.
Manuel Liebeke, Erik Puskás
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International Journal of Food Properties, 2020 The evolution of volatile compounds during the ripening of Chinese horse bean-chili-paste (CHCP) was investigated in this study. GC×GC-TOF/MS allowed an identification of 748 volatiles in three CHCP samples, respectively, ripened for 3 months (M3), 12 ...
Yunhao Lu +5 more
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Making It Last: Storage Time and Temperature Have Differential Impacts on Metabolite Profiles of Airway Samples from Cystic Fibrosis Patients. [PDF]
, 2017 Metabolites of human or microbial origin have the potential to be important biomarkers of the disease state in cystic fibrosis (CF). Clinical sample collection and storage conditions may impact metabolite abundances with clinical relevance.
John J. LiPuma +5 more
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