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Journal articles on the topic 'GC-HRMS Orbitrap'

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1

Dahibhate, Nilesh Lakshman, and Kundan Kumar. "Metabolite profiling of Bruguiera cylindrica reveals presence of potential bioactive compounds." PeerJ Analytical Chemistry 4 (May 4, 2022): e16. http://dx.doi.org/10.7717/peerj-achem.16.

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Bruguiera cylindrica parts are commonly used in Chinese and Indian traditional medicine to treat diarrhea, fever, and many ailments. The present study aims non targeted analysis of key secondary metabolites of B. cylindrica by gas chromatography mass spectrometry (GC-MS) and ultra-high performance liquid chromatography hybrid quadrupole-Exactive-Orbitrap high resolution mass spectrometry (UHPLC-Q-Exactive Orbitrap HRMS). GC-MS and UHPLC-Q-Exactive Orbitrap HRMS were utilized for metabolic profiling of ethyl acetate extract of B. cylindrica leaves. Key metabolites in the extract were identified
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2

Omelchun, Y., and A. Kobish. "Modern methods for the determination of pesticide residues in beekeeping products and for the diagnostics of bee poisoning." Naukovij vìsnik veterinarnoï medicini, no. 2(176) (December 27, 2022): 101–10. http://dx.doi.org/10.33245/2310-4902-2022-176-2-101-110.

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Intensification of agricultural production is associated with the use of a significant amount of pesticides, which negatively affects the environment and human health, and food products, including beekeeping products, accordingly require mandatory control of residual amounts of pesticides. This article provides a comparative analysis of the available chromatographic methods for pesticide residue research. The necessity of using modern chromatographic methods to determine residual amounts of pesticides in samples of dead bees and beekeeping products is well-founded. Chromatographic methods of s
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Miralles, Pablo, Vicent Yusà, Yovana Sanchís, and Clara Coscollà. "Determination of 60 Migrant Substances in Plastic Food Contact Materials by Vortex-Assisted Liquid-Liquid Extraction and GC-Q-Orbitrap HRMS." Molecules 26, no. 24 (2021): 7640. http://dx.doi.org/10.3390/molecules26247640.

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A GC-HRMS analytical method for the determination of 60 migrant substances, including aldehydes, ketones, phthalates and other plasticizers, phenol derivatives, acrylates, and methacrylates, in plastic food contact materials (FCM) has been developed and validated. The proposed method includes migration tests, according to Commission Regulation (EU) 10/2011, using four food simulants (A, B, C, and D1), followed by vortex-assisted liquid–liquid extraction (VA-LLE) and GC-Q-Orbitrap HRMS analysis in selected ion monitoring (SIM) mode, with a resolving power of 30,000 FWHM and a mass accuracy ≤5 p
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Miralles, Pablo, Vicent Yusà, Adriana Pineda, and Clara Coscollà. "A Fast and Automated Strategy for the Identification and Risk Assessment of Unknown Substances (IAS/NIAS) in Plastic Food Contact Materials by GC-Q-Orbitrap HRMS: Recycled LDPE as a Proof-of-Concept." Toxics 9, no. 11 (2021): 283. http://dx.doi.org/10.3390/toxics9110283.

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A fast and automated approach has been developed for the tentative identification and risk assessment of unknown substances in plastic food contact materials (FCM) by GC-Q-Orbitrap HRMS. The proposed approach combines GC-HRMS full scan data acquisition coupled to Compound Discoverer™ 3.2 software for automated data processing and compound identification. To perform the tentative identification of the detected features, a restrictive set of identification criteria was used, including matching with the NIST Mass Spectral Library, exact mass of annotated fragments, and retention index calculation
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TANIYASU, Sachi, Eriko YAMAZAKI, Nobuyasu HANARI, Itsuki YAMAMOTO, and Nobuyoshi YAMASHITA. "Development of GC-Orbitrap-HRMS Method for Volatile Per- and Polyfluoroalkyl Substances in Ambient Air in Japan and China." BUNSEKI KAGAKU 72, no. 7.8 (2023): 307–16. http://dx.doi.org/10.2116/bunsekikagaku.72.307.

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6

Stashenko, Elena, Andrés Fernando González, Jairo René Martínez, et al. "Hallazgo de diclofenaco en un producto fitoterapéutico a base de caléndula comercializado en Colombia." Revista de la Universidad Industrial de Santander. Salud 52, no. 3 (2020): 261–84. http://dx.doi.org/10.18273/revsal.v52n3-2020008.

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Introducción: la consulta de un particular que trajo un producto fitoterapéutico a base de caléndula cuyo consumo le causó fuertes reacciones adversas, originó esta investigación sobre la composición de este producto. Objetivo: caracterizar la composición química de muestras de lotes diferentes de un producto comercial denominado fitoterapéutico a base de caléndula (Calendula officinalis) (PFC) comercializado en Colombia. Metodología: se analizaron tabletas de ocho cajas del PFC de cuatro lotes diferentes de producción (2017 y 2018). Se llevó a cabo el análisis de espacio de cabeza (HS) de tab
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7

Belarbi, Saida, Martin Vivier, Wafa Zaghouani, Aude De Sloovere, Valérie Agasse-Peulon, and Pascal Cardinael. "Comparison of new approach of GC-HRMS (Q-Orbitrap) to GC–MS/MS (triple-quadrupole) in analyzing the pesticide residues and contaminants in complex food matrices." Food Chemistry 359 (October 2021): 129932. http://dx.doi.org/10.1016/j.foodchem.2021.129932.

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8

Nunes, Vanessa O., Raquel V. S. Silva, Gilberto A. Romeiro, and Débora A. Azevedo. "The speciation of the organic compounds of slow pyrolysis bio-oils from Brazilian tropical seed cake fruits using high-resolution techniques: GC × GC-TOFMS and ESI(±)-Orbitrap HRMS." Microchemical Journal 153 (March 2020): 104514. http://dx.doi.org/10.1016/j.microc.2019.104514.

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9

Faleva, Anna V., Ilya I. Pikovskoi, Sergey A. Pokryshkin, Dmitry G. Chukhchin, and Dmitry S. Kosyakov. "Features of the Chemical Composition and Structure of Birch Phloem Dioxane Lignin: A Comprehensive Study." Polymers 14, no. 5 (2022): 964. http://dx.doi.org/10.3390/polym14050964.

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Understanding the chemical structure of lignin in the plant phloem contributes to the systematics of lignins of various biological origins, as well as the development of plant biomass valorization. In this study, the structure of the lignin from birch phloem has been characterized using the combination of three analytical techniques, including 2D NMR, Py-GC/MS, and APPI-Orbitrap-HRMS. Due to the specifics of the phloem chemical composition, two lignin preparations were analyzed: a sample obtained as dioxane lignin (DL) by the Pepper’s method and DL obtained after preliminary alkaline hydrolysi
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10

Yfanti, Paraskevi, Polyxeni Lazaridou, Vasiliki Boti, Dimitra Douma, and Marilena E. Lekka. "Enrichment of Olive Oils with Natural Bioactive Compounds from Aromatic and Medicinal Herbs: Phytochemical Analysis and Antioxidant Potential." Molecules 29, no. 5 (2024): 1141. http://dx.doi.org/10.3390/molecules29051141.

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Olive oil and herbs, two key components of the Mediterranean diet, are known for their beneficial effects on humans. In our study, we incorporated aromatic and medicinal herbs into local monovarietal olive oils via maceration procedures for enrichment. We identified the herbal-derived ingredients that migrate to olive oils and contribute positively to their total phenolic content and functional properties, such as radical scavenging activity. Thus, we characterized the essential oil composition of the aromatic herbs (GC-MS), and we determined the phenolic content and antioxidant capacity of th
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11

Henríquez, Juan C., Laura V. Duarte, Lady J. Sierra, José L. Fernández-Alonso, Jairo R. Martínez, and Elena E. Stashenko. "Chemical Composition and In Vitro Antioxidant Activity of Salvia aratocensis (Lamiaceae) Essential Oils and Extracts." Molecules 28, no. 10 (2023): 4062. http://dx.doi.org/10.3390/molecules28104062.

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Salvia aratocensis (Lamiaceae) is an endemic shrub from the Chicamocha River Canyon in Santander (Colombia). Its essential oil (EO) was distilled from the aerial parts of the plant via steam distillation and microwave-assisted hydrodistillation and analyzed using GC/MS and GC/FID. Hydroethanolic extracts were isolated from dry plants before distillation and from the residual plant material after distillation. The extracts were characterized via UHPLC-ESI(+/−)-Orbitrap-HRMS. The S. aratocensis essential oil was rich in oxygenated sesquiterpenes (60–69%) and presented τ-cadinol (44–48%) and 1,10
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12

Rivera-Pérez, Araceli, Rosalía López-Ruiz, Roberto Romero-González, and Antonia Garrido Frenich. "A new strategy based on gas chromatography–high resolution mass spectrometry (GC–HRMS-Q-Orbitrap) for the determination of alkenylbenzenes in pepper and its varieties." Food Chemistry 321 (August 2020): 126727. http://dx.doi.org/10.1016/j.foodchem.2020.126727.

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13

Dai, Wei, Liangqian Zhang, Liping Dai, et al. "Comparative Analysis of Chemical Composition of Zanthoxylum myriacanthum Branches and Leaves by GC-MS and UPLC-Q-Orbitrap HRMS, and Evaluation of Their Antioxidant Activities." Molecules 28, no. 15 (2023): 5631. http://dx.doi.org/10.3390/molecules28155631.

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Zanthoxylum myriacanthum Wall. ex Hook. f., a plant belonging to the Rutaceae family and the Zanthoxylum genus, is extensively utilized for its medicinal properties and as a culinary seasoning in China and Southeast Asian countries. However, the chemical composition and biological activities of Z. myriacanthum branches and leaves remain insufficiently explored. In this study, the volatile and non-volatile components of Z. myriacanthum branches and leaves were analyzed using GC-MS and UPLC-Q-Orbitrap HRMS techniques. A total of 78 volatile compounds and 66 non-volatile compounds were identified
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14

Rivera-Pérez, Araceli, Roberto Romero-González, and Antonia Garrido Frenich. "Feasibility of Applying Untargeted Metabolomics with GC-Orbitrap-HRMS and Chemometrics for Authentication of Black Pepper (Piper nigrum L.) and Identification of Geographical and Processing Markers." Journal of Agricultural and Food Chemistry 69, no. 19 (2021): 5547–58. http://dx.doi.org/10.1021/acs.jafc.1c01515.

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15

Calvi, Lorenzo, Daniela Pentimalli, Sara Panseri, et al. "Comprehensive quality evaluation of medical Cannabis sativa L. inflorescence and macerated oils based on HS-SPME coupled to GC–MS and LC-HRMS (q-exactive orbitrap®) approach." Journal of Pharmaceutical and Biomedical Analysis 150 (February 2018): 208–19. http://dx.doi.org/10.1016/j.jpba.2017.11.073.

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16

Lopez-Herguedas, Naroa, Leire Mijangos, Iker Alvarez-Mora, et al. "Suspect Screening of Chemicals in Hospital Wastewaters Using Effect-Directed Analysis Approach as Prioritization Strategy." Molecules 28, no. 3 (2023): 1212. http://dx.doi.org/10.3390/molecules28031212.

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The increasing number of contaminants in the environment has pushed water monitoring programs to find out the most hazardous known and unknown chemicals in the environment. Sample treatment-simplification methods and non-target screening approaches can help researchers to not overlook potential chemicals present in complex aqueous samples. In this work, an effect-directed analysis (EDA) protocol using the sea urchin embryo test (SET) as a toxicological in vivo bioassay was used as simplified strategy to identify potential unknown chemicals present in a very complex aqueous matrix such as hospi
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17

Graziani, Giulia, Teresa Docimo, Monica De Palma, et al. "Changes in Phenolics and Fatty Acids Composition and Related Gene Expression during the Development from Seed to Leaves of Three Cultivated Cardoon Genotypes." Antioxidants 9, no. 11 (2020): 1096. http://dx.doi.org/10.3390/antiox9111096.

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Cultivated cardoon (Cynara cardunculus var. altilis) has long been used as a food and medicine remedy and nowadays is considered a functional food. Its leaf bioactive compounds are mostly represented by chlorogenic acids and coumaroyl derivatives, known for their nutritional value and bioactivity. Having antioxidant and hepatoprotective properties, these molecules are used for medicinal purposes. Apart from the phenolic compounds in green tissues, cultivated cardoon is also used for the seed oil, having a composition suitable for the human diet, but also valuable as feedstock for the productio
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18

Monga, Gaganpreet Kaur, Anima Ghosal, and Dil Ramanathan. "To Develop the Method for UHPLC-HRMS to Determine the Antibacterial Potential of a Central American Medicinal Plant." Separations 6, no. 3 (2019): 37. http://dx.doi.org/10.3390/separations6030037.

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The development of antibiotic resistance by microbials has long been acknowledged. The major challenge worldwide is to develop novel, natural, and potent antibiotics against the multidrug resistant bacteria. In this study, our aim was to develop the method for a highly sensitive instrument, ultra-high performance liquid chromatograph-high resolution mass spectrometer (UHPLC-HRMS), to evaluate the antibacterial property of a natural product. Aechmea magdalenae (Andre) Andre ex Baker, a plant belonging to the family Bromeliaceae, a native of Central America was used in this study. Based on the a
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19

Chiesa, Luca Maria, Maria Nobile, Renato Malandra, et al. "Food safety traits of mussels and clams: distribution of PCBs, PBDEs, OCPs, PAHs and PFASs in sample from different areas using HRMS-Orbitrap® and modified QuEChERS extraction followed by GC-MS/MS." Food Additives & Contaminants: Part A 35, no. 5 (2018): 959–71. http://dx.doi.org/10.1080/19440049.2018.1434900.

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20

Liu, Yaran, Na Li, Xiaoyao Li, et al. "A high-resolution Orbitrap Mass spectral library for trace volatile compounds in fruit wines." Scientific Data 9, no. 1 (2022). http://dx.doi.org/10.1038/s41597-022-01594-x.

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AbstractThe overall aroma is an important factor of the sensory quality of fruit wines, which attributed to hundreds of volatile compounds. However, the qualitative determination of trace volatile compounds is considered to be very challenging work. GC-Orbitrap-MS with high resolution and high sensitivity provided more possibilities for the determination of volatile compounds, but without the high-resolution mass spectral library. For accuracy of qualitative determination in fruit wines by GC-Orbitrap-MS, a high-resolution mass spectral library, including 76 volatile compounds, was developed i
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Braun, Georg, Martin Krauss, Stephanie Spahr, and Beate I. Escher. "Handling of problematic ion chromatograms with the Automated Target Screening (ATS) workflow for unsupervised analysis of high-resolution mass spectrometry data." Analytical and Bioanalytical Chemistry, April 1, 2024. http://dx.doi.org/10.1007/s00216-024-05245-5.

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AbstractLiquid chromatography (LC) or gas chromatography (GC) coupled to high-resolution mass spectrometry (HRMS) is a versatile analytical method for the analysis of thousands of chemical pollutants that can be found in environmental and biological samples. While the tools for handling such complex datasets have improved, there are still no fully automated workflows for targeted screening analysis. Here we present an R-based workflow that is able to cope with challenging data like noisy ion chromatograms, retention time shifts, and multiple peak patterns. The workflow can be applied to batche
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22

Zhang, Yanjie, Qing Zhao, Youwei Feng, et al. "Integrated Transcriptomic and Metabolomic Analyses Reveal the Mechanisms Underlying Anthocyanin Coloration and Aroma Formation in Purple Fennel." Frontiers in Nutrition 9 (April 27, 2022). http://dx.doi.org/10.3389/fnut.2022.875360.

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The color and aroma are the significant traits of vegetables and fruits, but the metabolic and molecular mechanisms underlying anthocyanin accumulation and aroma formation remain almost unknown in fennel (Anethum foeniculum L.), which is a crucial vegetable crop and grown widely for aromatic leaves and bulbs. Here, ten major anthocyanins identified and quantified by ultra-high performance liquid chromatography coupled with quadrupole Orbitrap high-resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS) were mainly responsible for the coloration of purple fennel leaf. With the application of GC-MS
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23

Reyes-Ávila, Alba, Antonia Garrido Frenich, and Roberto Romero-González. "Degradation of limonene and trans-cinnamaldehyde in soil, and detection of their metabolites by UHPLC and GC-HRMS." Environmental Science and Pollution Research, April 26, 2024. http://dx.doi.org/10.1007/s11356-024-33334-6.

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AbstractTwo commercial biopesticides were studied to determine their persistence in two soil types, such as sandy clay loam and clay loam soils. For this purpose, an orange oil–based biopesticide was used, being limonene its main ingredient. The other biopesticide was based on cinnamon extract and trans-cinnamaldehyde as its main component. Degradation of these compounds was monitored, and transformation products or metabolites were detected. Limonene and its metabolites were analyzed by gas chromatography (GC) and trans-cinnamaldehyde by ultra-high-performance liquid chromatography (UHPLC). B
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24

Chow, Willis, Daniel Leung, and Jian Wang. "A Complementary, Quantitative and Confirmatory Method to UHPLC/ESI Q-Orbitrap Screening based on UPHLC/ESI-MS/MS for Analysis of 416 Pesticides in Fruits and Vegetables." Journal of AOAC INTERNATIONAL, September 27, 2021. http://dx.doi.org/10.1093/jaoacint/qsab116.

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Abstract Background Triple quadrupole (MS/MS) and high-resolution mass spectrometer (HRMS), coupled with ultra-high performance liquid chromatography (UHPLC) or gas chromatography (GC), are technologies used to analyse pesticide residues in fruits and vegetables. LC-MS/MS has been the gold standard for analysis of pesticides, offering reliable performance and sensitivity, while LC-HRMS is expanding in applications to serve as another benchmark. Method development and testing scope expansion are constantly required with new generation mass spectrometers. Objective This paper discusses the devel
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25

Moreira de Oliveira, Amilton, Carlos Alberto Teixeira, and Leandro Wang Hantao. "Advanced tuning of the ion management parameters in GC × GC-HRMS using a Fourier transform Orbitrap mass analyzer for pixel-based data handling and multivariate analysis." Analytical Methods, 2022. http://dx.doi.org/10.1039/d2ay00314g.

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26

Yang, Luping, Xiang Zhang, Zhijia Wang, et al. "Decoction regulating phytochemicals’ micromorphology changes and anti-inflammation activity enhancements originated from herb medicine supermolecules." Chinese Medicine 19, no. 1 (2024). http://dx.doi.org/10.1186/s13020-023-00864-z.

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Abstract Background Mahuang Fuzi decoction (MGF) is composed of three herb medicines that has been clinically used to treat inflammatory diseases for a long history. At present, more and more active phytochemicals’ aggregations have been found during the thermodynamic process of herb medicine decoction, and revealing the clinical efficacy of herb medicine through supramolecular strategies is the focus of current research. However, it is not clear whether decoction induced supermolecules’ morphological changes to modify activity. Methods Dynamic light scattering (DLS) and field emission scannin
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27

Zhao, Xiying, Yahui Liu, Meiping Li, Hongyan Li, Qing Zhang, and Qing Lv. "Differential analysis of volatiles in five types of mosquito-repellent products by chemometrics combined with headspace GC-Orbitrap HRMS nontargeted detection." Talanta, November 2023, 125443. http://dx.doi.org/10.1016/j.talanta.2023.125443.

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28

Tang, Caiming, Ruifen Zheng, Qiuxin Huang, et al. "Nontarget and Comprehensive Analyses of Halogenated Organic Additives in Electrical Product Plastics by GC-NCI-Q-Orbitrap-HRMS and Cl/Br-Screening Algorithms." Analytical Chemistry, June 19, 2023. http://dx.doi.org/10.1021/acs.analchem.3c01422.

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29

Tang, Caiming, Guangshi Chen, Yutao Liang, et al. "Nontarget analysis and comprehensive characterization of halogenated organic pollutants by GC-Q-Orbitrap-HRMS in association with chromatogram segmentation and Cl/Br-specific screening algorithms." Analytica Chimica Acta, July 2022, 340171. http://dx.doi.org/10.1016/j.aca.2022.340171.

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