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Relevant bibliographies by topics / GC-HRMS Orbitrap

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Journal articles

Academic literature on the topic 'GC-HRMS Orbitrap'

Author: Grafiati

Published: 4 May 2024

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Journal articles on the topic "GC-HRMS Orbitrap"

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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3

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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4

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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5

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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