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241
Analysis of the composition, characteristics, and antifungal properties of cutin in goji berry fruits at different developmental stages
Published 2025-02-01“…In the current study, paraffin sections and gas chromatography/mass spectrometry (GC/MS) techniques were used to identify differences in cuticle structure and chemical composition of Ningqi-1 and Ningqi-5 goji berries at different developmental stages. …”
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242
Sampling and Analytical Method for Alpha-Dicarbonyl Flavoring Compounds via Derivatization with o-Phenylenediamine and Analysis Using GC-NPD
Published 2016-01-01“…After derivatization, the sorbent was desorbed in 3 mL of ethanol solvent and analyzed using gas chromatography/nitrogen-phosphorous detection (GC/NPD). …”
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243
Release of Volatile Compounds from Polymeric Microcapsules Mediated by Photocatalytic Nanoparticles
Published 2013-01-01“…The quantification of the output release has been performed by gas chromatography analysis coupled with mass spectroscopy.…”
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244
Environmental Applications of Mass Spectrometry for Emerging Contaminants
Published 2025-01-01“…This review highlights the pivotal role of mass spectrometry (MS) in monitoring ECs, emphasizing its high sensitivity, specificity, and versatility across various techniques such as Gas Chromatography-Mass Spectrometry (GC-MS), Liquid Chromatography-Mass Spectrometry (LC-MS), and High-Resolution Mass Spectrometry (HR-MS). …”
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245
Volatile organic compounds of Thai honeys produced from several floral sources by different honey bee species.
Published 2017-01-01“…The volatile organic compounds (VOCs) of four monofloral and one multifloral of Thai honeys produced by Apis cerana, Apis dorsata and Apis mellifera were analyzed by headspace solid-phase microextraction (HS-SPME) followed by gas chromatography and mass spectrometry (GC-MS). The floral sources were longan, sunflower, coffee, wild flowers (wild) and lychee. …”
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246
The gut microbiota-SCFA-inflammation axis in patients with AECOPD.
Published 2025-01-01“…Fatty acid concentrations were determined in lumen via gas chromatography-mass spectrometry. The richness and diversity of gut microbiota were decreased in AECOPD patients. β-diversity analysis revealed differences between AECOPD patients and healthy controls. p_Bacteroidetes, g_Paraprevotella, g_Ruminococcus2, g_Parasutterella, o_Rhodospirillales, and g_Romboutsia in the healthy controls and p_Firmicutes, o_Actinomycetales, f_Actinomycetadeae, g_Actinomyces, g_Mogibacterium, f_Veillonellaceae, f_Enterococcaceae, and g_Enterococcus in AECOPD patients were the most abundant microbiota. …”
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247
Optimization of Producing Zein Clove Leaf Essential Oil Nanoparticles for Their Antioxidant Activities
Published 2024-10-01“…Chemical component analysis using Gas Chromatography Mass Spectrophotometry (GC-MS) showed the presence of 32 compounds with three main compounds, namely trans-?…”
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248
Analysis of Volatile Organic Compounds by HS-GC-IMS in Powdered Yak Milk Processed under Different Sterilization Conditions
Published 2021-01-01“…Headspace-gas chromatography-ion mobility spectroscopy (HS-GC-IMS) was used to detect the volatile organic compounds (VOCs) of yak milk powders (YMPs) under ultra-high-pressure sterilization (UHPS) and thermization (TH) methods. …”
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249
Untargeted metabolomics of Aloe volatiles: Implications in pathway enrichments for improved bioactivities
Published 2025-02-01“…The leaves of five highly utilized Aloe sp. were subjected to untargeted gas chromatography-mass spectrometry analysis followed by testing of free-radical scavenging effects against components of the Fenton and Haber-Weiss reaction. …”
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250
Rapid Analysis Procedures for Triglycerides and Fatty Acids as Pentyl and Phenethyl Esters for the Detection of Butter Adulteration Using Chromatographic Techniques
Published 2017-01-01“…The procedure for the analysis of triglycerides requires only dissolution of the sample in n-hexane and gas chromatography (GC) analysis using a capillary column. …”
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251
Simultaneous aerobic and anaerobic respiration in hot spring chemolithotrophic bacteria
Published 2025-01-01“…Consumption of O2 measured via gas chromatography and detection of transcripts for proteins involved in S0 and O2 reduction in H2/S0/O2-grown cultures confirmed co-occurring aerobic and anaerobic metabolism. …”
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252
Pheromone Production, Attraction, and Interspecific Inhibition among Four Species of Ips Bark Beetles in the Southeastern USA
Published 2012-01-01“…Hindgut volatiles from attacking, unmated males of Ips avulsus, I. calligraphus, I. grandicollis, and I. pini were analyzed by combined gas chromatography and mass spectrometry. Based on the quantitative identifications of hindguts and subsequent individual aerations, baits were formulated and a combined species-specific subtractive field bioassay was set up for the four bark beetle species. …”
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253
Migration of Two Synthetic Phenolic Antioxidants and Their Degradation Products from Wheat Straw-Based Plastic Lunch Boxes
Published 2024-12-01“…A method based on gas chromatography-mass spectrometry (GC-MS) was developed for the determination of the residues of 2,4-di-tert-butylphenol (2,4-DTBP), butylated hydroxytoluene (BHT) and its derivatives 2,6-di-tert-butyl-p-benzoquinone (BHT-Q) and 3,5-di-tert-butyl-4-hydroxybenzaldehyde (BHT-CHO) and their migration to isooctane from wheat straw-based plastic lunchboxes. …”
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254
Nematicidal Constituents from the Essential Oil of Chenopodium Ambrosioides Aerial Parts
Published 2011-01-01“…The essential oil of C. ambrosioides was obtained by hydrodistillation and analyzed by gas chromatography-mass spectrometry (GC-MS). A total of 27 components of the essential oil were identified. …”
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255
Analysis of Distribution Characteristics and Variation Trends of Organic Matters in Panjiakou Reservoir
Published 2020-01-01“…In order to understand the improvement of water environment by cage-cleanup-activities in Panjiakou Reservoir,and to find out the types and characteristics of main pollutants in Panjiakou Reservoir,this paper carries out analysis and research on surface water samples in different time and space in the study area.The water samples of Panjiakou Reservoir in 2017 and 2018 are tested by the high-throughput screening technology of full two-dimensional gas chromatography time-of-flight mass spectrometry.The results are further confirmed by the matching degrees,detection rates and other conditions.The confirmed results are classified according to the chemical properties and purposes,and the final results are used to analyze the trend of pollutant species change.Compared with the test results in 2017,there were 244 compounds reduced in 2018,including 38 ketones,27 alkanes,26 phenols,21 ethers,15 organic acids,etc.Among them,25 for industrial intermediates,14 for flavors and fragrances,12 for food additives,8 for industrial use,6 for pharmaceutical products,14 for plasticizers,and so on.Compared with the results in 2017,there were 22 compounds increased in 2018,including 10 esters,3 ketones,2 ethers,1 benzene,1 alcohol, 1 aldehyde,1 organic acid,etc.…”
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256
Untargeted Metabolomics Analysis Reveals the Effect of Fixation on the Profile of Volatile Compounds of Cyclocarya paliurus Tea
Published 2024-08-01“…The aim of this study was to determine the volatile metabolites in fixated and unfixated C. paliuru s tea by gas chromatography-mass spectrometry in order to identify the volatile compounds that differentiate them and establish the key aroma compounds. …”
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257
Thermochemical Recycling of Solid Biomass Materials for Achieving Sustainable Goal: A Complete Characterization Study on Liquid Yield Products
Published 2022-01-01“…The Fourier transform infrared spectroscopy (FT-IR) and gas chromatography and mass spectroscopy (GC-MS) analyses of the bio-oil revealed that the oil has a significant amount of phenol derivatives, oxygenated chemicals, acids, and esters. …”
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258
Characterization of Jamaican Delonix regia and Cassia fistula Seed Extracts
Published 2016-01-01“…Lipid extracts were characterized by nuclear magnetic resonance spectroscopy and gas chromatography/mass spectrometry. Zinc concentration was determined by atomic absorption spectroscopy. …”
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259
Utilization of Tea Industrial Waste for Low-Grade Energy Recovery: Optimization of Liquid Oil Production and Its Characterization
Published 2022-01-01“…The liquid products were analyzed for its physical and chemical characteristics using Fourier transform infrared spectroscopy (FTIR) and gas chromatography-mass spectroscopy (GC-MS). The heating value of the liquid products showed that it can be used as liquid fuels, and its elements can be used for various industrial applications.…”
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260
Geographical and Seasonal Patterns of Geosmin and 2-Methylisoborneol in Environmental Water in Jiangsu Province of China
Published 2014-01-01“…More specifically, the headspace solid-phase microextraction coupled to gas chromatography mass spectrometry (HS-SPME/GC-MS) was applied to determine the levels of GSM and 2-MIB in water samples, and the samples were collected depending on water sources, conventional treatment processes, and seasons. …”
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