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Artykuły w czasopismach na temat „Gaz chromatography Masss Spectrometry (GC-MS)”

Autor: Grafiati

Data publikacji: 8 czerwca 2024

Data aktualizacji: 31 lipca 2025

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1

Shounak, Mande*. "A Review Article on Hyphenated Techniques Used in Analytical Method and Development." International Journal of Pharmaceutical Sciences 3, no. 1 (2025): 2407–17. https://doi.org/10.5281/zenodo.14762916.

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The hyphenated techniques refers to the combination or synthesis of distinct analytical methodologies. Spectroscopic techniques are mostly paired with chromatographic techniques. After that, an interphase will allow the mixture's separated components from the chromatographic approach to enter the spectroscopic technique. In GC-MS After separation from gas chromatography, ionization and mass spectrometry are added to MS. analysis and measurement of the mass-to-charge ratios of the ions that the mass spectrometer generates from each analysis. GC and MS can be connected by a membrane separator, j

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Ababutain, Ibtisam. "Antimicrobial Activity and Gas Chromatography-Mass Spectrometry (GC-MS) Analysis of Saudi Arabian Ocimum basilicum Leaves Extracts." Journal of Pure and Applied Microbiology 13, no. 2 (2019): 823–33. http://dx.doi.org/10.22207/jpam.13.2.17.

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IWASA, Shuichi, Shigeki OHIGASHI, Toshio KOSAKI, et al. "19-Hydroxyandrostenedione in Human Ovarian Vein Measured by GC-MS." Folia Endocrinologica Japonica 67, no. 6 (1991): 692–701. http://dx.doi.org/10.1507/endocrine1927.67.6_692.

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Taka, T., A. M. Nishikawa, E. M. C. Salioni, and S. Aranha. "DETECÇÃO DE RESÍDUOS DE DIETILESTILBESTROL E ZERANOL EM FÍGADO BOVINO ATRAVÉS DA CROMATOGRAFIA GASOSA ACOPLADO AO ESPECTRÔMETRO DE MASSA." Arquivos do Instituto Biológico 61, no. 1-2 (1994): 65–67. https://doi.org/10.1590/1808-1657v61n1-2p0651994.

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RESUMO Com objetivo de avaliar a presença de resíduos de dietilestilbestrol (DES) e zeranol em amostras de fígado de bovino foram analisadas 240 amostras provenientes de frigoríficos sob Inspeção Federal devárias Unidades da Federação. A análise dessas amostras foi realizada por cromatografia gasosa capilar acoplada ao espectrômetro de massa ( GC/MS ) no Laboratório de Referência Animal de Campinas ( LARA/ CAMPINAS), não tendo sido detectado resíduos em nenhuma amostra.

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Israel, Chukwuemeka Eneke, Bassey Essien Eka, and Owhonda Wegu Matthew. "Gas chromatography-Mass spectrometry (GC-MS) analysis of bioactive components present in grape citrus peel in Nigeria." GSC Advanced Research and Reviews 8, no. 1 (2021): 166–74. https://doi.org/10.5281/zenodo.5168359.

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Grapefruit (<em>Citrus paradisi</em>) is an important cultivar of the Citrus genus which contains a number of nutrients beneficial to human health. Grapefruit peels are usually thrown away in this part of Nigeria. The research work investigated the bioactive components present in an indigenous citrus peel, grape (<em>Citrus paradisi</em>). Grape fruits were purchased from the fruits garden market in D-Line, Port-Harcourt metropolis and washed with ionized water and allowed to shade dry. The peel of the fruits were separated and subjected to cold extraction using 95% ethanol. The extracts obtai

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Sercan, Dede, and Kemal Avşar Yahya. "Characterization of Aroma Profile of Bogma, Traditional Homemade Turkish Spirit††." Greener Journal of Agricultural Sciences 7, no. 9 (2017): 263–70. https://doi.org/10.15580/GJAS.2017.09.112117171.

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Volatile compounds and aroma profile of Bogma (traditional Turkish homemade distilled spirit) produced from dry fig were investigated. Volatile compounds by gas chromatography/mass spectrometry (GC/MS) and aroma active compounds by gas chromatography/olfactometry (GC/O) were determined using direct injection (DI) and head space-solid phase microextraction techniques (HS-SPME). Aroma extraction dilution analysis (AEDA) was employed to reveal the importance of each aroma active compounds in Bogma aroma. With DI, 12 volatiles and 7 aroma active compounds were detected while HS-SPME showed the exi

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Jordáková, I., J. Dobiáš, M. Voldich, and J. Poustka. "Determination of vinyl chloride monomer in food contact materials by solid phase microextraction coupled with gas chromatography/mass spectrometry." Czech Journal of Food Sciences 21, No. 1 (2011): 13–17. http://dx.doi.org/10.17221/3472-cjfs.

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The present study concerns the optimisation of the headspace solid phase microextraction (HS/SPME) combined with gas chromatography/mass spectrometry (GC/MS) for the vinyl chloride monomer determination. Samples of PVC materials were analysed using the Carboxen/Polydimethylsiloxane (CX/PDMS) 75 &micro;m fibre. For this fibre, the achieved limit of detection was 0.05 &micro;g/kg, and that of quantification 0.17 &micro;g/kg, respectively, with RSD 5%. The levels of VCM found ranged from 0.29 to 0.44 mg/kg, in the case of foil, the VCM content determined was 3.65 mg/kg which means tha

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Aisiyah, Adella, Ajeng Nita Aryani, Diva Rizqi Salsabilla, Putri Mutiara Iskandar, and Silvana Lestari Irwansyah. "Identifikasi Senyawa Mdma dan Paracetamol dalam Sampel Urine Menggunakan Metode Kromatografi Lapis Tipis dan Kromatografi Gas – Spektrofotometri Massa (Gc-Ms)." Jurnal Health Sains 3, no. 5 (2022): 690–96. http://dx.doi.org/10.46799/jhs.v3i5.482.

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MDMA (3,4-methylenedioximet amphetamine) is a semisynthetic compound derived from stimulant type amphetamine (ATS) which works by triggering the release of serotonin. Paracetamol (acetaminophen) is one type of drug that has an analgesic-antipyretic effect. MDMA analysis requires a relatively fast method, so the TLC method was chosen. The identification test was carried out using 3 chromatographic systems, namely methanol: ammonia TA (100:1.5 v/v), methanol: butanol TAF (60:40 v/v), and Toluene: acetone: ethanol: ammonia TAEA (45: 45: 7: 3v/v/v/v). The determination test was carried out using t

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9

Researcher. "COMPREHENSIVE PROFILING OF VOLATILE ORGANIC COMPOUNDS IN FOOD PRODUCTS BY GAS CHROMATOGRAPHY COUPLED WITH TANDEM MASS SPECTROMETRY." International Journal of Analytical Chemistry (IJAC) 2, no. 1 (2025): 1–9. https://doi.org/10.5281/zenodo.14760216.

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Volatile organic compounds (VOCs) play a pivotal role in defining the flavor, aroma, and safety of food products. Gas chromatography coupled with tandem mass spectrometry (GC-MS/MS) has emerged as a robust analytical tool for identifying and quantifying VOCs in complex food matrices. This paper explores advancements in VOC profiling, evaluates existing methodologies, and highlights the application of GC-MS/MS in food analysis. A comprehensive comparison of VOC profiling techniques and the role of tandem mass spectrometry in improving detection sensitivity are presented. Applications across var

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Timkovsky, J., A. W. H. Chan, T. Dorst, A. H. Goldstein, B. Oyama, and R. Holzinger. "Organic aerosol composition measurements with advanced offline and in-situ techniques during the CalNex campaign." Atmospheric Measurement Techniques Discussions 7, no. 12 (2014): 12449–80. http://dx.doi.org/10.5194/amtd-7-12449-2014.

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Abstract. Our understanding of formation processes, physical properties and climate/health effects of organic aerosols is still limited in part due to limited knowledge of organic aerosol composition. We present speciated measurements of organic aerosol composition by two methods: in-situ thermal-desorption proton-transfer-reaction mass spectrometry (TD-PTR-MS) and offline two-dimensional gas chromatography with a time-of-flight mass spectrometer (GC×GC/TOF-MS). 153 compounds were identified using the GC×GC/TOF-MS, 123 of which were matched with 64 ions observed by the TD-PTR-MS. A reasonable

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Peter, Onyedikachi Opara, H.A. Enemor Victor, Sabastine Asiwe Emeka, Uchechi Enenebeaku Emmanuela, Kelechi Ahamefule Augustus, and Ugbonma Ugenyi Assumpta. "Gas chromatography-mass spectrometry profile and acute toxicity studies of Annona muricata leaf ethanol extract." World Journal of Advanced Research and Reviews 23, no. 1 (2024): 1110–17. https://doi.org/10.5281/zenodo.14794577.

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Medicinal plants are primary source of bio-active compounds applied in the management of diseases. The present work focuses on determining the acute toxicity of <em>Annona muricata </em>leaf ethanol extract and the volatile organic constituents using Gas Chromatography-Mass Spectrometry. The acute toxicity test of the extract of <em>A. muricata </em>was determined using standard method. The GC-MS profiling of the extract obtained 13 compounds at different retention times. The dominant chemical constituents in the extracts of <em>A. muricata </em>leaf include: Lino

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Hamza, Khalifa, Ali Ahmed Abdussalam, Abusaediyah Ayiman, Yousuf Aejeeliyah, and Grimida Salheen. "GAS CHROMATOGRAPHY - MASS SPECTROMETRY (GC-MS) IN ORGANIC GEOCHEMICAL INVESTIGATION OF CRUDE OILS FROM KIKINDA AND VELEBIT FIELDS IN SERBIA." International Journal of Research - Granthaalayah 5, no. 6 (2017): 550–60. https://doi.org/10.5281/zenodo.823622.

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In this work two crude oil samples were investigated to present the difference between biodegraded (Velebit) and non-degraded (Kikinda) oil. Two samples are from the Velebit oil–gas field and the Kikinda oil-gas field. These are two of the largest oil and gas deposits in the Serbian part of the Pannonian Basin. In the experimental part of this work, two samples of crude oil were separated by column chromatography. Saturated hydrocarbons were analyzed by gas chromatography-mass spectrometry instruments. Based on the abundance and distribution of biomarkers, it could be conclude that the distrib

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Timkovsky, J., A. W. H. Chan, T. Dorst, A. H. Goldstein, B. Oyama, and R. Holzinger. "Comparison of advanced offline and in situ techniques of organic aerosol composition measurement during the CalNex campaign." Atmospheric Measurement Techniques 8, no. 12 (2015): 5177–87. http://dx.doi.org/10.5194/amt-8-5177-2015.

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Abstract. Our understanding of formation processes, physical properties, and climate/health effects of organic aerosols is still limited in part due to limited knowledge of organic aerosol composition. We present speciated measurements of organic aerosol composition by two methods: in situ thermal-desorption proton-transfer-reaction mass spectrometry (TD-PTR-MS) and offline two-dimensional gas chromatography with a time-of-flight mass spectrometer (GC × GC/TOF-MS). Using the GC × GC/TOF-MS 153 compounds were identified, 123 of which were matched with 64 ions observed by the TD-PTR-MS. A reason

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Gunin Saikia, and Snehasis Jana. "Evaluation of Isotopic Abundance Ratio in Naphthalene Derivatives After Biofield Energy Treatment Using Gas Chromatography-Mass Spectrometry." American Journal of Applied Chemistry 3, no. 6 (2015): 194–200. https://doi.org/10.5281/zenodo.50620.

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Naphthalene and 2-naphthol are two naphthalene derivatives, which play important roles in the chemical and pharmaceutical industries. The aim of this study was to evaluate the impact of biofield energy treatment on the isotopic abundance of 13C/12C or 2H/1H and 18O/16O in naphthalene and 2-naphthol using gas chromatography-mass spectrometry (GC-MS). Naphthalene and 2-naphthol samples were divided into two parts: control and treated. The control group remained as untreated, while the treated group was subjected to Mr. Trivedi’s biofield energy treatment. The treated samples were subdivide

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Savych, Alona, Svetlana Marchyshyn, Myroslava Harnyk, Victoria Kudria, and Anna Ocheretniuk. "Determination of amino acids content in two samples of the plant mixtures by GC-MS." Pharmacia 68, no. (1) (2021): 283–89. https://doi.org/10.3897/pharmacia.68.e63453.

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Due to the wide range of biologically active substances, the plant mixtures can influence the development of diabetes mellitus and its complications. Amino acids attract particular attention due to their ability to stimulate insulin secretion, reduce hyperglycemia and regulate metabolic processes in patients with diabetes. The aim of this study was to investigate the content of amino acids in the plant mixture samples: 1) Cichorium intybus roots, Elymus repens rhizome, Helichrysum arenarium flowers, Rosa majalis fruits, Zea mays columns with stigmas, 2) Urtica dioica leaf, Taraxacum officinale

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Gunin Saikia, and Snehasis Jana. "Evaluation of Isotopic Abundance Ratio in Naphthalene Derivatives After Biofield Energy Treatment Using Gas Chromatography-Mass Spectrometry." American Journal of Applied Chemistry 3, no. 6 (2015): 194–200. https://doi.org/10.5281/zenodo.193858.

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Naphthalene and 2-naphthol are two naphthalene derivatives, which play important roles in the chemical and pharmaceutical industries. The aim of this study was to evaluate the impact of biofield energy treatment on the isotopic abundance of 13C/12C or 2H/1H and 18O/16O in naphthalene and 2-naphthol using gas chromatography-mass spectrometry (GC-MS). Naphthalene and 2-naphthol samples were divided into two parts: control and treated. The control group remained as untreated, while the treated group was subjected to Mr. Trivedi’s biofield energy treatment. The treated samples

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Fay, Laurent B., and Andreas A. Staempfli. "New Approach to Processing of Gas Chromatographic/Mass Spectrometric Data for Detection of Off Flavors in Complex Mixtures." Journal of AOAC INTERNATIONAL 78, no. 6 (1995): 1429–34. http://dx.doi.org/10.1093/jaoac/78.6.1429.

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Abstract Chemical compounds responsible for off flavors in foodstuffs are often difficult to identify because of their low levels in complex matrixes. A simple method is described to detect and identify off flavor compounds by gas chromatographic/mass spectrometric (GC/MS) analysis and data processing for sorting the GC/MS files in 14-ion series. The 14 homologous-ion series correspond to the sum of the intensities of the ions, x + (CH2)n, where x varies from 1 to 14 and n varies from 1 to ∞, allowing to cover the whole acquired mass range. Processing of the ion series allows automatic screeni

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Salah, Eldeen A. Ali. "Assessment of Cucumber and Paper Contamination by Pesticides Residues in Khartoum State using Quechers Method and Gas Liquid Chromatography-Mass Spectrometry." Food Science & Nutrition Technology 5, no. 3 (2020): 1–6. http://dx.doi.org/10.23880/fsnt-16000220.

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In this paper, we present the investigation of 30 pesticides in total of 138 samples of different fresh cucumber and paper from central markets in Khartoum state using the quick easy cheap effective rugged and safe (QuEChERS) multi-residue extraction, followed by gas chromatography-mass spectrometry (GC-MS). Pesticide residues were not detected in 68 samples (49.3%), while 70 samples (50.7%) contained detectable amount of pesticide residues. The percentages of contaminated vegetable samples are 69.4%, 47.2%, 38.9% and 30% for cucumber, sweet paper, green paper and armenian cucumber respectivel

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Vidhi, Soni, and Mangal Rekha. "Innovative Approaches in Phytochemical Extraction: A Comprehensive Review." PEXACY International Journal of Pharmaceutical Science 2, no. 12 (2023): 1–18. https://doi.org/10.5281/zenodo.10241470.

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Abstract: This comprehensive review article examines into the evolving landscape of phytochemical extraction methods, their integration into drug development, advancements in analytical techniques, and the critical aspect of environmental sustainability. The review begins by exploring various modern extraction techniques, such as supercritical fluid extraction, ultrasound-assisted extraction, and microwave-assisted extraction, highlighting their efficiency, yield, and alignment with green chemistry principles. It then transitions into the significant role of phytochemicals in drug develop

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Kim, Jin Hyo, Jong Min Park, Geun-Hyoung Choi, et al. "Comparison of Liquid Chromatography-Mass/Mass Spectrometry (MS) and Gas Chromatography-MS for Quantitative Analysis of Indole-3-acetic acid and Indole-3-butyric acid from the Concentrated Liquid Fertilizer." Journal of Applied Biological Chemistry 56, no. 1 (2013): 53–57. http://dx.doi.org/10.3839/jabc.2013.010.

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Laurynas, Jarukas, Kamarauskaitė Justina, Marksa Mindaugas, Trumbeckaitė Sonata, Banienė Rasa, and Ivanauskas Liudas. "Bio-based succinic acid sample preparation and derivatization procedure optimisation for gas chromatography-mass spectrometry analysis." ScienceRise: Pharmaceutical Science, no. 4(14) (August 31, 2018): 9–13. https://doi.org/10.15587/2519-4852.2018.135132.

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This study focused on bio-based succinic acid sample preparation and derivatization conditions optimization using GC-MS analytical method. Succinic acid, the precursor of a wide range bio-compounds, especially it is important in accumulation of mitochondrial metabolite succinate (citric acid cycle) and during ischemia controls reperfusion injury through mitochondrial reactive oxygen production. Accurate determination of analytes is the key in metabolomics to use as low molecular biomarkers in case to improve diagnostic methods. <strong>Methods. </strong>Gas chromatography-mass spectrometr

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Delgado-Chavero, C. L., E. Zapata-Márquez, J. M. García-Casco, and A. Paredes-Torronteras. "Statistical model for classifying the feeding systems of Iberian pigs through Gas Chromatography (GC-FID) and Isotope Ratio Mass Spectrometry (GC-C-IRMS)." Grasas y Aceites 64, no. 2 (2013): 157–65. http://dx.doi.org/10.3989/gya.130412.

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Kasturi, Pangarkar*. "A Comparative Analysis of In-Process Quality Control Parameters of Pantoprazole Gastro-Resistant Tablets." International Journal of Pharmaceutical Sciences 3, no. 5 (2025): 1392–409. https://doi.org/10.5281/zenodo.15379009.

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The presence of N-nitrosamine impurities in pharmaceutical products has become a critical regulatory and patient safety concern due to their classification as probable human carcinogens. These impurities can originate from various sources, including synthesis pathways, raw materials, excipients, and degradation during storage. Controlling these impurities at trace levels (ng/day) requires highly sensitive, selective, and validated analytical methodologies. This review provides a comprehensive overview of the current analytical strategies employed for the detection and quantification of N-nitro

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Pass, Iyamah, Famuti Ayodeji, and Idu MacDonald. "GC-MS and Molecular Docking Studies for Identification of Anti-malarial Compounds in Agbo-Iba PMII-a Polyherbal Formulation." Chemistry Research Journal 2, no. 1 (2017): 46–56. https://doi.org/10.5281/zenodo.13956928.

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Malaria prevalence is one of the life-threatening diseases responsible for more deaths around the world than any other parasitic disease. Due to the outbreak of strains that show resistance to the current synthetic anti-malarial arsenal, a large focus has been directed to structure based drug designing. The present study investigated the anti-malarial active constituents present in an ethanolic extracted polyherbal formulation (Agbo-iba PMII) comprising Sixteen (16) plants using GC-MS analysis and molecular docking studies of the identified compounds to determine the potential of the polyherba

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Berliana Aprida, Cantika Dewi, Erlangga Muhamad Prayuda, Febry Nola Odhia, et al. "Analisis Senyawa Acetaminophen pada Spesimen Rambut Manusia Menggunakan Metode Kromatografi Gas-Spektrometri Massa (Gc-Ms)." Syntax Idea 4, no. 5 (2022): 861–70. http://dx.doi.org/10.46799/syntax-idea.v4i5.1835.

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Paracetamol is a drug containing non opiod analgesics and non-steroidal antipyretics (AINS). This journal review aims to analyze and find out the content of paracetamol (acetaminophen) can be detected in biological samples of the hair of a patient undergoing paracetamol treatment therapy using the gas chromatography-Mass spectrometry (GC-MS) method and knowing how much influence hair length has on paracetamol (acetaminophen) concentrations. Biological samples of human hair were obtained by two different methods, from volunteers and 10 patients taking paracetamol. Paracetamol in human hair is e

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Hotmian, Ellen, Elly Suoth, Fatimawali Fatimawali, and Trina Tallei. "ANALISIS GC-MS (GAS CHROMATOGRAPHY - MASS SPECTROMETRY) EKSTRAK METANOL DARI UMBI RUMPUT TEKI (Cyperus rotundus L.)." PHARMACON 10, no. 2 (2021): 849. http://dx.doi.org/10.35799/pha.10.2021.34034.

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ABSTRACTThe Nut Grass Tuber (Cyperus rotundus L.) is a plant that is believed by the public to cure several diseases. According to a study conducted in vivo and in vitro, the extract the tuber root has many potentials such as anticancer, anti-inflammatory, antibacterial, etc. This study aims to determine the polar bioactive compounds contained in the bulb tubers. The method used was the extraction of nut tuber dry powder using methanol as a solvent by maceration process and then analyzed using gas chromatography - mass spectrometry (GC-MS) to obtain information on the content of the tubers The

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N.S., Alikhanova, Gaimova G.G., and Serkerov S.V. "The Study of the component composition in overgrounds parts of Smyrniopsis aucheri Boiss. by gas chromatography mass spectrometry." Journal of Life Sciences and Biomedicine 73, no. 3 (2018): 5–11. https://doi.org/10.5281/zenodo.7409114.

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The component composition of the overground parts (stems, leaves, flowers) of Smyrniopsis aucheri (Apiaceae) was studied by the method of gas chromatography mass spectrometry (GC/MS). Components of various natural compounds in the extractive sum obtained from stems, flowers and leaves of the plant were determined. In stems 29, in flowers and leaves 32 components were identified

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N.S., Alikhanova, Gaimova G.G., and Serkerov S.V. "The Study of the component composition in overgrounds parts of Smyrniopsis aucheri Boiss. by gas chromatography mass spectrometry." Journal of Life Sciences and Biomedicine 73, no. 3 (2018): 5–11. https://doi.org/10.5281/zenodo.7409595.

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The component composition of the overground parts (stems, leaves, flowers) of Smyrniopsis aucheri (Apiaceae) was studied by the method of gas chromatography mass spectrometry (GC/MS). Components of various natural compounds in the extractive sum obtained from stems, flowers and leaves of the plant were determined. In stems 29, in flowers and leaves 32 components were identified.

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Gunin Saikia, and Snehasis Jana. "Thermal, Spectroscopic and Chromatographic Characterization of Biofield Energy Treated Benzophenone." Science Journal of Analytical Chemistry 3, no. 6 (2015): 109–14. https://doi.org/10.5281/zenodo.169144.

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The aim of the present study was to evaluate the impact of biofield energy treatment on the thermal, spectroscopic, and chemical properties of benzophenone. The study was done using various analytical methods such as gas chromatography-mass spectrometry (GC-MS), high performance liquid chromatography (HPLC), differential scanning calorimetry (DSC), Fourier transform infrared (FT-IR) spectroscopy, and ultraviolet-visible (UV-Vis) spectroscopy. The benzophenone sample was divided into two parts, one part was subjected to Mr. Trivedi’s biofield energy treatment, called as treated and the ot

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Ram, Kishore P., V. Vikram, Sundaram R. Lakshmi, N. Selvapalam, Sohail Shaikmuhammad та Hariram N. "Evaluation of α-amylase expression and analysis of phytochemical in the leaf callus tissue of Rauvolfia serpentina (Linn.) Benth. Ex Kurz exposed to Cyclodextrin". World Journal of Biology Pharmacy and Health Sciences 4, № 1 (2020): 067–85. https://doi.org/10.5281/zenodo.4430574.

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<em>Rauvolfia serpentina</em> (Linn.) Benth. Ex Kurz belongs to the family Apocynaceae. The objective of the present study was to establish an effective protocol for the regeneration of leaf explants from <em>R. serpentina</em> and to study the α-amylase expression and phytochemical profiling by gas chromatography and mass spectrometry (GC-MS). Further antibacterial activity was studied using silver, gold, and copper nanoparticles. The leaf explants were cultured on Murashige and Skoog (MS) medium containing Benzyl amino purine (BAP) (2.0 mg/L<sup>-1</sup>) and Naphthalene

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Mustapha, A. Tijjani, I. Abdulrahman Fanna, Adam Sherrif, and M. Dungus Fatima. "Purification and Analysis of bioactive compounds from Citrus aurantifiolia Linn stem bark by Gas- Chromatography-Mass spectrometry." Chemistry Research Journal 2, no. 5 (2017): 192–203. https://doi.org/10.5281/zenodo.13951313.

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The objectives of this research are to extract the air-dried stem bark (500g) of <em>citrus aurantifolia</em> with methanol using cold infusion (maceration) technique, partition the extract  with solvents of graded polarities (<em>n-hexane</em>, ethyl acetate, n-butanol suspended in water) and phytochemically screened and fractionate and purify the n-butanol partitioned portion using a combination of column and thin layer chromatography<em> </em>and finally subject the possible pure fraction(s)  to gas chromatography and mass spectrometry (GC-MS) analysis. The methanol crude extract

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Gunin Saikia, and Snehasis Jana. "Mass Spectrometry Analysis of Isotopic Abundance of 13C, 2H, or 15N in Biofield Energy Treated Aminopyridine Derivatives." American Journal of Physical Chemistry 4, no. 6 (2015): 65–70. https://doi.org/10.11648/j.ajpc.20150406.14.

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2-Aminopyridine (2-AP) and 2,6-diaminopyridine (2,6-DAP) are two derivatives of aminopyridines that act as an important organic intermediates, mostly used in medicines, dyes and organic sensors. The aim of the study was to evaluate the impact of biofield energy treatment on isotopic abundance ratios of 2H/1H, 13C/12C, or 15N/14N, in aminopyridine derivatives using gas chromatography-mass spectrometry (GC-MS). The 2-AP and 2,6-DAP samples were divided into two parts: control and treated. The control sample remained as untreated, while the treated sample was further divided into four groups as T

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Gunin Saikia, and Snehasis Jana. "Mass Spectrometry Analysis of Isotopic Abundance of 13C, 2H, or 15N in Biofield Energy Treated Aminopyridine Derivatives." American Journal of Physical Chemistry 4, no. 6 (2015): 65–70. https://doi.org/10.5281/zenodo.192649.

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2-Aminopyridine (2-AP) and 2,6-diaminopyridine (2,6-DAP) are two derivatives of aminopyridines that act as an important organic intermediates, mostly used in medicines, dyes and organic sensors. The aim of the study was to evaluate the impact of biofield energy treatment on isotopic abundance ratios of 2H/1H, 13C/12C, or 15N/14N, in aminopyridine derivatives using gas chromatography-mass spectrometry (GC-MS). The 2-AP and 2,6-DAP samples were divided into two parts: control and treated. The control sample remained as untreated, while the treated sample was further divided into f

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Jenan, Mohammed Ubaid, Fauzi Al-Rubaye Abeer, and Hadi Hameed Imad. "Analysis of Bioactive Chemical Compounds of Trogoderma granarium (Insecta: Coleoptera: Dermestidae) Using Gas Chromatography – Mass Spectrometry." International Journal of Toxicological and Pharmacological Research 9, no. 3 (2017): 199–205. https://doi.org/10.5281/zenodo.12698026.

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Methanolic extract of bioactive compounds of <em>Trogoderma granarium</em> was assayed. GC-MS analysis of <em>Trogoderma granarium</em> revealed the existence of the Pentanoic acid , 1,1-dimethylpropyl ester , (1H)-Pyrimidinone , 5-chloro-4,6-diphenyl, Cyclobutanemethanol , α-methyl- , Nitro-2-methyl-1,3-propanediol , Hydroxylamine ,O-(2-methylpropyl)- , Uridine , 2′,3′-O-(phenylmethylene)- ,Acetic acid ,2-benzoylthio-,2-oxo-2-phenylethyl ester , methylpropyl)- , Uridine , 2′,3′-O-(phenylmethylene)- , 5′-(4-methylbenzenesulfo , Indolinol

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Primpke, Sebastian, Marten Fischer, Claudia Lorenz, Gunnar Gerdts, and Barbara M. Scholz-Böttcher. "Comparison of pyrolysis gas chromatography/mass spectrometry and hyperspectral FTIR imaging spectroscopy for the analysis of microplastics." Analytical and Bioanalytical Chemistry 412, no. 30 (2020): 8283–98. http://dx.doi.org/10.1007/s00216-020-02979-w.

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AbstractAnalysis of microplastics (MP) in environmental samples is an emerging field, which is performed with various methods and instruments based either on spectroscopy or thermoanalytical methods. In general, both approaches result in two different types of data sets that are either mass or particle number related. Depending on detection limits of the respective method and instrumentation the derived polymer composition trends may vary. In this study, we compare the results of hyperspectral Fourier-transform infrared (FTIR) imaging analysis and pyrolysis gas chromatography-mass spectrometry

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Iosypenko, Olena, and Viktoriia Kyslychenko. "Study of the monosaccharide composition of vegetable marrow leaves by the GC/MS method and determination of their antimicrobial activity." Annals of Mechnikov Institute, no. 3 (September 12, 2022): 32–37. https://doi.org/10.5281/zenodo.7070973.

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<strong>Introduction</strong>. Vegetable marrow (<em>Cucurbita</em> <em>pepo</em> L. ssp. <em>pepo </em>L.) of <em>Cucurbitaceae</em> family is a source of polysaccharides: sugars, pectins and dietary fibers. They are easily absorbed by the body, without causing irritation of the gastric and intestines. Dietary fibers of vegetable marrow fruits adsorb toxic substances and excess cholesterol well, remove them from the body. Vegetable marrow fruits activate digestion processes, improve the motor and secretory functions of the gastric and intestines, and prevent the development of atheroscle

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Mohammed Al bratty, Mohammed Al bratty, Neelaveni Thangavel Neelaveni Thangavel, Hassan Ahmad Alhazmi Hassan Ahmad Alhazmi, et al. "Gas Chromatography-Mass Spectrometry-based Phytochemical Analysis and In-Vitro Anti-Lipid Peroxidation, Cyclooxygenase Inhibition Activities of Saudi Eruca sativa Leaves." Journal of the chemical society of pakistan 44, no. 2 (2022): 175. http://dx.doi.org/10.52568/001001/jcsp/44.02.2022.

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Eruca sativa is a wholesome yearly shrubbery herb in Saudi Arabia. Eruca sativa leaves are a conventional food and are consumed raw in salads. The present research reports the phytochemical analysis, in-vitro anti-lipid peroxidation, total anti-oxidant capability, cyclooxygenase-1, and -2 (COX1 and COX2) inhibition activities of Saudi Eruca sativa leaves water decoction (EWD). Gas chromatography-mass spectrometry (GC-MS) of EWD revealed seventeen constituents of six different chemical groups: phenolics (23.60%), aromatic and aliphatic esters (16.97%), terpenoids (31.91%), heterocyclics (14.83%

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Yao, KF Konan, D. Mohamadou Lamine, ES Yapo Sopie, H. Kouakou Tanoh, and M. Merillon Jean. "GC-MS Analysis of Induced Metabolites in Cell Suspensions of Cotton (Gossypium hirsutum L.) under Methyl Jasmonate and Ethephon Treatment." Chemistry Research Journal 2, no. 5 (2017): 320–33. https://doi.org/10.5281/zenodo.13952246.

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The study aims to determine the phytochemical constituents present in the cell suspensions of cotton elicited by MeJA and ethephon. Elicitors were added alone or in combination. The freeze-dried cells were soaked with 10 mL of methanol 96% and purified through a mini-column of C18. After concentration of filtrate, the dry extract was dissolved in methanol with chromatographic grade and filtered through a Millipore membrane with 0.22 μm porosity. Then, each of the extracts was further subjected to Gas Chromatography-Mass Spectrometry (GC-MS). Results showed six compounds in control, sev

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Aida, Syakira Ahmad Sabri Noor, Edora Nik Kamaruzaman Nik Fasha, Nurlaila Ismail, et al. "Statistical analysis for chemical compound based on several species of Aquilaria essential oil." Statistical analysis for chemical compound based on several species of Aquilaria essential oil 14, no. 4 (2024): 3663–73. https://doi.org/10.11591/ijece.v14i4.pp3663-3673.

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The paper examines the characterization of Aquilaria essential oils from different species, namely Aquilaria malaccensis, Aquilaria beccariana, Aquilaria crassna, and Aquilaria subintegra, renowned for agarwood production in Malaysia. Gas chromatography-mass spectrometry (GC-MS) and gas chromatography-flame ionization detector (GC-FID) were employed for extracting essential oil data, facilitating compound identification. Subsequently, a preliminary analysis focused on classifying significant chemical compounds in the samples. The study then utilized boxplot&n

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Shadrack, Donkor, Larbie Christopher, Komlaga Gustav, and Obukowho Emikpe Benjamin. "Safety evaluation of hydroethanolic fruit extracts of Duranta erecta Linn." GSC Biological and Pharmaceutical Sciences 18, no. 2 (2022): 154–67. https://doi.org/10.5281/zenodo.6330280.

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<strong>Background: </strong><em>Duranta erecta</em> is used in traditional medicine for the treatment of myriad of diseases in most developing countries. The potential safety concerns associated with the administration of hydroethanolic fruit extracts of the plants were investigated in rats. <strong>Materials and Methods:</strong> Extracts were screened for their possible antioxidant activities by the DPPH scavenging activity. Bioactive compounds present in methanolic extracts of ripe and unripe fruits of D. erecta were identified using Gas chromatography–mass spectrometr

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Gunin Saikia, and Snehasis Jana. "Quantitative Determination of Isotopic Abundance Ratio of 13C, 2H, and 18O in Biofield Energy Treated Ortho and Meta Toluic Acid Isomers." American Journal of Applied Chemistry 3, no. 6 (2015): 217–23. https://doi.org/10.11648/j.ajac.20150306.17.

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O-Toluic acid (OTA) and m-toluic acid (MTA) are two isomers of toluic acid that act as an important organic intermediates, mostly used in medicines and pesticides. The aim of the study was to evaluate the impact of biofield energy treatment on isotopic abundance ratios of 2H/1H, 13C/12C, (PM+1)/PM and 18O/16O, (PM+2)/PM, in toluic acid isomers using gas chromatography-mass spectrometry (GC-MS). The OTA and MTA samples were divided into two parts: control and treated. The control sample remained as untreated, while the treated sample was further divided into four groups as T1, T2, T3, and T4. T

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Gunin Saikia, and Snehasis Jana. "Quantitative Determination of Isotopic Abundance Ratio of 13C, 2H, and 18O in Biofield Energy Treated Ortho and Meta Toluic Acid Isomers." American Journal of Applied Chemistry 3, no. 6 (2015): 217–23. https://doi.org/10.5281/zenodo.192636.

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O-Toluic acid (OTA) and m-toluic acid (MTA) are two isomers of toluic acid that act as an important organic intermediates, mostly used in medicines and pesticides. The aim of the study was to evaluate the impact of biofield energy treatment on isotopic abundance ratios of 2H/1H, 13C/12C, (PM+1)/PM and 18O/16O, (PM+2)/PM, in toluic acid isomers using gas chromatography-mass spectrometry (GC-MS). The OTA and MTA samples were divided into two parts: control and treated. The control sample remained as untreated, while the treated sample was further divided into four groups as T1, T2

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Uliana, Karpiuk, Kyslychenko Viktoriia, Hnoievyі Ihor, Buhay Tatiana, Helmi Abudayeh Zead, and Fedosov Andrii. "The study of carbohydrates of corn raw materials." ScienceRise: Pharmaceutical Science, no. 1(41) (February 28, 2023): 32–40. https://doi.org/10.15587/2519-4852.2023.274698.

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<strong>The aim</strong>. The aim of the study was to study the content of polysaccharide fractions depending on the dissolution, qualitative composition and quantitative content of sugars in corn silk, leaves and roots. <strong>Materials and methods</strong>. To study different fractions of polysaccharides - water-soluble polysaccharides (WSPS), pectin substances (PS), hemicelluloses A (HC A) and B (HM B) used a gravimetric method based on the extraction of polysaccharide fractions with a suitable solvent followed by sedimentation and weighing of the sediment. Determination of the qualitative

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Antasionasti, Irma, Sri Sudewi, Imam Jayanto, and Jainer Pasca Siampa. "MEKANISME REAKSI FRAGMENTASI SENYAWA KIMIA DALAM KULIT BUAH ALPUKAT (Persea americana Mill.)." Jurnal Farmasi Medica/Pharmacy Medical Journal (PMJ) 2, no. 2 (2019): 61. http://dx.doi.org/10.35799/pmj.2.2.2019.26528.

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ABSTRACTInvestigation of the fragment structure of ions and fragmentation reaction is crucial and needs to be done to reconstruct the chemical structure of the examined sample. Therefore, it is necessary to study the fragmentation mechanisms of chemical compound that identified from avocado peel to study the rules of the fragmentation reaction that occurs Sample analysis was examined using Gas Chromatography-Mass Spectrometry (GC-MS) with ionization Electron Impact (EI). Two compounds foun in avocado peel are 1,2,4-trihidroksiheptadek-12,16-diyne and 1,2,4-trihidroksiheptadek-16-yne-18-ene fol

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J.O, Alagbe, Kadiri, Mercy C, Oluwafemi R.A, Agubosi O.C.P, and Anorue, D.N. "Analysis Of Bioactive Compounds in Ethanolic Extract of Xylopia Aethiopica Leaves Using Gas Chromatography and Mass Spectrometry (Gc-Ms) Technique." Pharmacy and Drug Development 2, no. 2 (2023). http://dx.doi.org/10.58489/2836-2322/021.

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This study investigated the bioactive compounds in ethanolic extract of Xylopia aethiopica leaves using gas chromatography and mass spectrometry (GC-MS) technique. The phytoconstituents present in Xylopia aethiopica leaves were: flavonoids (951.82 mg/g), tannins (282.70 mg/g), alkaloids (188.47 mg/g), phenols (603.25 mg/g), saponins (11.47 mg/g), steroids (91.20 mg/g), oxalates (190.32 mg/g) and glycosides (190.32 mg/g). A total number of 30 bioactive compounds were identified based on their peak areas. The major compounds greater than 1 % were; 13-docosenamide (21.09 %), terpineol (10.07 %),

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Si, Wu, Alseekh Saleh, Brotman Yariv, and R. Fernie Alisdair. "Metabolomic Analysis of Natural Variation in Arabidopsis." November 12, 2020. https://doi.org/10.1007/978-1-0716-0880-7_19.

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Methodological advances in coupled-mass spectrometry (gas chromatography and liquid chromatography; GC-MS and LC-MS) have rendered the profiling of highly complex plant extracts relatively facile and allowed that their high-throughput use aids the investigation of a range of biological questions. Among these is the elucidation of the genetic factors underlying metabolite abundance. For this purpose genome-wide association studies (GWAS) are being widely adopted in Arabidopsis with the resultant quantitative trait loci being subjected to cross-validation by the use of recombinant inbred lines,

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Горяинов, С. В., С. Эспарза, А. Р. Борисова, Л. Н. Куликова та Н. Ю. Половков. "Выявление фальсификации молока и молочных продуктов методом газовой хроматографии/масс-спектрометрии с ионизацией электронами". Масс-спектрометрия 16, № 4 (2019). https://doi.org/10.25703/ms.2019.16.45.

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Проведен сравнительный анализ результатов использования описанной в ГОСТ 33490-2015 и разработанной настоящими авторами оригинальной методики для детектирования и количественного определения маркеров фальсифицирования молочной продукции растительными маслами - 4-дезметилстеринов - методом газовой хроматографии в сочетании масс-спектрометрией с ионизацией электронами. Показано, что применение оригинальной методики для анализа молочной продукции позволяет избежать ложноположительных результатов и сокращает время анализа. Ключевые слова: газовая хромато/масс-спектрометрия, молочные продукты, стер

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Байгильдиев, Т. М., М. Ф. Вокуев, Д. В. Орешкин та ін. "п-Метоксифенацилбромидуниверсальныйреагентдляопределенияалкилфосфоновыхиалкилметилфосфоновыхкислотметодамивысокоэффективнойжидкостнойигазовойхроматографиисмасс-спектрометрическимдетектированием". Масс-спектрометрия 16, № 3 (2019). https://doi.org/10.25703/ms.2019.16.31.

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Предложен универсальный реагент пметоксифенацилбромид для дериватизации полярных продуктов деструкции (маркеров) отравляющих веществ нервнопаралитического действия, позволяющий проводить их определение методами высокоэффективной жидкостной хроматографии с тандемным массспектрометрическим детектированием и газовой хроматографии в комбинации с массспектрометрией высокого разрешения. В ходе исследования оптимизированы условия реакции дериватизации алкилфосфоновых и алкилметилфосфоновых кислот этим реагентом, выявлены особенности и общие закономерности формирования МС1 и МС2 спектров производных,

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Trivedi, Mahendra. "Isotopic Abundance Analysis of Biofield Treated Benzene, Toluene and p-Xylene Using Gas Chromatography-Mass Spectrometry (GC-MS)." Mahendra Kumar Trivedi, October 5, 2015. https://doi.org/10.5281/zenodo.813513.

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Benzene, toluene and p-xylene are derivatives of benzene, generally produced from crude petroleum and have numerous applications in industry. The aim of the present study was to evaluate the impact of biofield treatment on isotopic abundance of these benzene derivatives by gas chromatography-mass spectrometry (GC-MS). Benzene, toluene and p-xylene samples were divided into two parts: control and treatment. Control part was remained as untreated and treatment part was subjected to Mr. Trivedi's biofield treatment. Control and treated samples were characterized using GC-MS. GC-MS data revealed t

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Gunin Saikia, and Snehasis Jana. "Isotopic Abundance Analysis of Biofield Treated Benzene, Toluene and p-Xylene Using Gas Chromatography-Mass Spectrometry (GC-MS)." Mass Spectrometry & Purification Techniques 1, no. 1 (2015). https://doi.org/10.5281/zenodo.49730.

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Benzene, toluene and p-xylene are derivatives of benzene, generally produced from crude petroleum and have numerous applications in industry. The aim of the present study was to evaluate the impact of biofield treatment on isotopic abundance of these benzene derivatives by gas chromatography-mass spectrometry (GC-MS). Benzene, toluene and p-xylene samples were divided into two parts: control and treatment. Control part was remained as untreated and treatment part was subjected to Mr. Trivedi’s biofield treatment. Control and treated samples were characterized using GC-MS. GC-MS data reve

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