Results 171 to 180 of about 1,913,440 (221)
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Volatiles in Potentilla discolor by HS-SPME-GC-MS
Chemistry of Natural Compounds, 2014Potentilla discolor Bunge (Rosaceae) is a perennial herb widely distributed in China. The full herb, as a traditional Chinese medicine, clears heat and toxicity, treats hemostasis, and has detumescent effects in diseases such as hematemesis, hemafecia, metrorrhagia, dysenteria, and malaria [1].
Yi-bing Zhang, Wenyi Kang
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Volatile profiling of durum wheat kernels by HS–SPME/GC–MS
European Food Research and Technology, 2016This work aimed at developing a HS–SPME/GC–MS method for the extraction and analysis of volatile compounds from the kernels of durum wheat. Fiber coating, temperature and time of extraction were evaluated. Moreover, the method was used as a tool for varietal characterization.
MATTIOLO E +4 more
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The Optimization and HS-SPME/GC-MS Analysis in Pear Fruit
Advanced Materials Research, 2014Solid-phase microextraction (SPME) is a rapid sample preparation in volatile analysis. The aromatic volatile compositions of ‘Kuerle’ were analyzed using SPME and gas chromatography-mass spectrometry (GC-MS). The effect of different types of fibers, extraction time, and extraction temperature on the volatile results were compared and discussed.
Guo Peng Li +3 more
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Volatile profile of Atlantic shellfish by HS-SPME GC/MS
Food Research International, 2012A procedure based on headspace solid-phase microextraction (HS-SPME) and GC–MS analysis was developed to investigate the volatile organic compounds (VOCs) of Atlantic shellfish species. The experimental conditions (fiber coating, sample volume, time and temperature of incubation) were optimized for the extraction of VOCs from shellfish.
FRATINI, GLENDA +4 more
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Determination of terpene alcohols in Sicilian Muscat wines by HS-SPME-GC-MS
Natural Product Research, 2013Muscat is a grape family used to obtain several sweet, aromatic white dessert wines common in the Mediterranean area. Currently, three Sicilian cultivars (all classified DOC) are known: 'Moscato di Siracusa' the oldest and very rare today; 'Moscato di Noto', a modern derivative of the first and finally 'Moscato di Pantelleria', now the most common ...
Barbera Daniela +5 more
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HS–SPME–GC–MS for the Quantitation and Chiral Characterization of Camphor and Menthol in Creams
Chromatographia, 2010A GC–MS method is proposed for the analysis of camphor and menthol in “over-the-counter” (OTC) products. Sample preparation was achieved by head-space solid phase microextraction using a polydimethylsiloxane fibre. GC analysis was performed using a Phenomenex ZB-5 column and a temperature program was adopted.
FIORI, JESSICA +2 more
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Volatile emerging contaminants in melon fruits, analysed by HS-SPME-GC-MS
Food Additives & Contaminants: Part A, 2017The aim of this research was to develop and validate a headspace-solid phase micro-extraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) method for the determination of volatile emerging contaminants in fruit. The method showed good precision (RSD ≤ 14%) and satisfactory recoveries (99.1-101.7%) and LOD and LOQ values ranging between 0.011-0 ...
Cincotta, Fabrizio +3 more
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Analysis of volatiles in the flowers of Patrinia scabiosifolia BY HS-SPME-GC-MS
Chemistry of Natural Compounds, 2011in P. scabiosifolia flowers, which comprised 96.21% of the total volatiles. Esters (87.40%) were dominant in the flowers. The most abundant compound is cis-3-hexenyl isovalerate (28.91%), followed by pentanoic acid phenylmethyl ester (20.79%), hexyl n-valerate (10.44%), 3-methyl-2-phenylethyl butanoic acid ester (9.80%), 3-methylbutanoic acid 3 ...
Wen-Yi Kang, Jin-Mei Wang, Pu-Yu Tian
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Rapid Contamination Detection in Validamycin A Production by HS-SPME/GC-MS
Current Biochemical Engineering, 2020Background: Validamycin A (Val-A) is one of the most widely used agricultural antibiotics in East Asia especially for controlling rice sheath blight disease. Fermentation contamination of the industrial Val-A producing strain is a common occurrence. Methods: Fermentation culture of S.
Xiao-Mei Yu +3 more
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Confirmation of synthetic cannabinoids in herb and blood by HS-SPME-GC/MS
Forensic Chemistry, 2019Abstract In this study, a simple and rapid method for screening synthetic cannabinoids in herb mixtures and human blood by gas chromatography-mass spectrometry (GC/MS) with headspace solid-phase microextraction (HS-SPME) was developed. Herb mixtures were taken into an SPME vial without any pretreatment.
Koichi Saito +7 more
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