Showing 121 - 140 results of 562 for search '"Gas Chromatography"', query time: 0.07s Refine Results
  1. 121
  2. 122

    Mass Fragmentation Characteristics of t-Boc Substituted Drug Precursors by Cui-mei LIU, Xue-yan LIU, Zhen-dong HUA, Hao TANG, Yu DU, Wei JIA

    Published 2025-01-01
    Subjects: “…gas chromatography-mass spectrometry (gc-ms)…”
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    Article
  3. 123

    不同温度烫制红油辣椒的风味研究 Flavor of chili oil poured at different temperatures by 张峰轶,王浩文,田浩,刘琨,王传明 ZHANG Fengyi, WANG Haowen, TIAN Hao, LIU Kun, WANG Chuanming

    Published 2025-01-01
    Subjects: “…红油辣椒;气相色谱-质谱法;挥发性物质;感官属性;相关性 chili oil; gas chromatography-mass spectrometry; volatile substances; sensory attributes; correlation…”
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  4. 124

    TERPENES OF Melipona quadrifasciata GEOPROPOLIS by Marta S. D. Freitas, Matheus H. O. de Sousa, Alexandre Piccinini, Luiz Antonio Mendonça Alves da Costa, Neusa F. de Moura

    Published 2025-01-01
    “…The volatile fraction was analyzed by headspace-gas chromatography/mass spectrometry (HS-GC/MS) and identified fifty-six (56) mono- and sesquiterpenes, with particularly high concentrations of α- and β-pinene. …”
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    Article
  5. 125

    Presence of organochlorines in water and oysters Crassostrea sp. in Cananeia-SP by Cláudia Simões Reigada, Luiz Carlos Luchini, Edison Barbieri

    Published 2014-01-01
    “…In this study, there is the possibility of oysters and water contamination, using the methodology of liquid-liquid extraction, using the detector μECG by gas chromatography. In the case of oysters the methodology used was USEPA 8081B (2007) and gas chromatography. …”
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  6. 126

    Bio-active composition, antibacterial activity and molecular docking studies of Salicia nitida (Benth.) root extracts by Wisdom U. Ike, Okereke C. Stanley, Nosiri Ijeoma, Okamgba C. Okezie, Nwokocha W. Osita, Aguwanba Chinedu, Aaron C. Friday

    Published 2024-12-01
    “…Standard qualitative screening methods were employed to access phytochemical constituents present in the root extracts of S. nitida. Gas Chromatography-Mass Spectrophotometry analysis was used to identify the bioactive components present in root extracts of S. nitida. …”
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    Article
  7. 127

    Diversity and sex differences in rectal gland volatiles of Queensland fruit fly, Bactrocera tryoni (Diptera: Tephritidae). by Cynthia Castro-Vargas, Gunjan Pandey, Heng Lin Yeap, Michael J Lacey, Siu Fai Lee, Soo J Park, Phillip W Taylor, John G Oakeshott

    Published 2022-01-01
    “…We used solid-phase microextraction (SPME) plus gas chromatography-mass spectrometry (GC-MS) and gas chromatography-flame ionization detection (GC-FID) to substantially expand rectal gland chemical characterisation of the Queensland fruit fly (Bactrocera tryoni (Diptera: Tephritidae); Qfly). …”
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  8. 128

    Analysis of Tocopherols by High Performance Liquid Chromatography by B. Edison

    Published 2009-01-01
    “…: Gas chromatography is the key technique for organic components and also for tocopherols analysis. …”
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    Article
  9. 129

    Les liants organiques présents dans les polychromies d’objets ethnographiques  by Vinciane Bruttin

    Published 2010-11-01
    “…Their  compositions were specified by using Gas Chromatography-Mass Spectrometry (GCMS) and Direct Temperature-Resolved  Mass Spectrometry (DTMS).…”
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  10. 130

    Metabolites Profiling of Manilkara mabokeensis Aubrév Bark and Investigation of Biological Activities by Xavier Worowounga, Rami Rahmani, Armel-Frederic Namkona, Sylvie Cazaux, Jean-Laurent Syssa-Magalé, Hubert Matondo, Jalloul Bouajila

    Published 2022-01-01
    “…Interestingly, gas chromatography-flame ionization detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS) analysis were enabled to identify 23 compounds in the essential oil of M. mabokeensis Aubrév bark, which have not been previously described in the literature. …”
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  11. 131

    Analysis of the changes of volatile flavor compounds in a traditional Chinese shrimp paste during fermentation based on electronic nose, SPME-GC-MS and HS-GC-IMS by Ying Li, Li Yuan, Huijie Liu, Hongying Liu, Yue Zhou, Miaonan Li, Ruichang Gao

    Published 2023-01-01
    “…A total of 106 volatile flavor compounds in the shrimp paste samples at different fermentation stages were identified by solid-phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS) and headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS). …”
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    Article
  12. 132

    Differentiation and characterization of volatile compounds in five common milk powders using HS-GC-IMS, HS-SPME-GC–MS, and multivariate statistical approaches by Yaxi Zhou, Diandian Wang, Jian Zhao, Yu Guo, Wenjie Yan

    Published 2025-01-01
    “…This study analysed and identified the flavor characteristics of five common types of milk powders in China, including yak milk powder, donkey milk powder, camel milk powder, goat milk powder, and cow milk powder, using Headspace-Gas Chromatography-Ion Mobility Spectrometry (HS-GC-IMS), Headspace Solid-Phase Microextraction-Gas Chromatography-Mass Spectrometry (HS-SPME-GC–MS), and multivariate statistical analysis. …”
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    Article
  13. 133

    Transfer of Organochlorine Pesticide Residues during Household and Industrial Processing of Ginseng by Peiling Wu, Mengying Gu, Yujie Wang, Jian Xue, Xiaoli Wu

    Published 2020-01-01
    “…The determination of targeted pesticide residues in ginseng was done by gas chromatography-electron capture detector (GC-ECD), and the confirmation was done by gas chromatography-tandem mass spectrometer (GC-MS/MS). …”
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  14. 134

    Recent Developments in the Speciation and Determination of Mercury Using Various Analytical Techniques by Lakshmi Narayana Suvarapu, Sung-Ok Baek

    Published 2015-01-01
    “…This paper reviews the speciation and determination of mercury by various analytical techniques such as atomic absorption spectrometry, voltammetry, inductively coupled plasma techniques, spectrophotometry, spectrofluorometry, high performance liquid chromatography, and gas chromatography. Approximately 126 research papers on the speciation and determination of mercury by various analytical techniques published in international journals since 2013 are reviewed.…”
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  15. 135

    Comparative efficacy of plant derived extracts with the insecticide mospilan on two whitefly species Bemisia tabaci biotype B and Trialeurodes ricini by Hanaa S. Hussein, Mamdouh H. Idriss, Farouk H. El-Gayar, Hebatullah Yehia Saad Mousa, Mohamed Z. M. Salem

    Published 2025-01-01
    “…The chemical compositions of HEs were identified using gas chromatography-mass spectrometry (GC-MS) and gas chromatography with flame-ionization detection (GC-FID) analysis. …”
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    Article
  16. 136

    Chemical Composition, Antioxidant Activity, and Antifungal Effects of Essential Oil from Laurus nobilis L. Flowers Growing in Morocco by Ibrahim Mssillou, Abdelkrim Agour, Asmae El Ghouizi, Noureddine Hamamouch, Badiaa Lyoussi, Elhoussine Derwich

    Published 2020-01-01
    “…The chemical composition of the obtained essential oil and chemotypes was determined using gas chromatography coupled with mass spectrometry (GC/MS) and gas chromatography with flame ionization detection (GC-FID). …”
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    Article
  17. 137

    Canvas support impregnation materials and techniques: a study of Portuguese painting and its conservation issues by Andréa Carolina Teixeira

    Published 2016-03-01
    “…This paper focuses on the study of oil based coating impregnations, applied in the past, on the reverse of Portuguese painting canvas supports.The scientific study of the impregnation materials found in the painting “The Knight of the Order of Malta” (18th century) was carried out on samples using several analytical techniques – Optical Microscopy (OM) under visible reflected and polarised light and ultraviolet fluorescence (UV); Gas chromatography mass spectrometry (GC-MS), Fourier transform Infrared spectroscopy (transmission and FTIR-ATR), and Scanning electron microscopy coupled with an energy dispersive X-ray spectroscopy (SEM-EDX) – in order to identify the materials and the techniques used in this practice.…”
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  18. 138

    Chemical Composition of the Essential Oil of Cyperus Conglomeratus Rottb. from Iran by A. Feizbakhsh, A. Naeemy

    Published 2011-01-01
    “…The compositions of the essential oil from cyperus conglomerates were obtained by hydrodistillation and analyzed by GC/MS (Gas chromatography/mass spectrometry). Twenty seven compounds were identified. …”
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    Article
  19. 139

    Fuzzy Algorithm for Power Transformer Diagnostics by Nitin K. Dhote, Jagdish B. Helonde

    Published 2013-01-01
    “…Many conventional DGA methods have been developed to interpret DGA results obtained from gas chromatography. Although these methods are widely used in the world, they sometimes fail to diagnose, especially when DGA results fall outside conventional methods codes or when more than one fault exist in the transformer. …”
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  20. 140

    Characterization of flavor fingerprinting of red sufu during fermentation and the comparison of volatiles of typical products by Peng Wang, Xiaoran Ma, Wenping Wang, Dandan Xu, Xin Zhang, Jian Zhang, Yong Sun

    Published 2019-12-01
    “…In this study, the volatile aroma analysis of Wangzhihe red sufu (WRS) from different fermentation stages and four typical red sufu products from different locations was carried out by gas chromatography-mass spectrometry (GC–MS), gas chromatography-mass spectrometry/olfactory (GC–MS/O), electronic nose (E-nose) and sensory evaluation. …”
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    Article