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22 articles for “Gas Chromatography-Mass Spectrometry (GC-MS)”
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Research ArticleOpen accessEvery word in the titleDetermination of Pesticide Residues in Banana by Using High Performance Liquid Chromatography and Gas Chromatography-Mass SpectrometryR. Paranthaman, A. Sudha, S. KumaravelProblem statement: The occurrence of endosulfan, carbendazim, chloropyripos in 10 banana samples in southern area of Tamilnadu, India (hill banana, karpuravalli, monthan, nendran, ney poovan, pachanadan, poovan, rasthali, red banana, robusta) was investigated. Approach: In 7 samples, Carbendazim was found at concentrations ranging from 0.002-0.11 mg kg-1. In three samples, carbendazim was not found, whereas endosulfan, chloropyripos was not detected … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 1 · 1 Mar 2012 · 9,544 accessesView PDFCite
Research ArticleOpen accessEvery word in the title2-Nonenal-Ovulatory Specific Volatiles in Human Saliva throughout Menstrual Cycle by Gas Chromatography and Mass Spectrometry AnalysisS. Alagendran, G. Archunan, K. Rameshkumar et al.Problem statement: The present investigation carry out a pilot study of a novel method to identify the salivary volatiles in different phases of menstrual cycle for the assessment of ovulation detection using gas chromatography and mass spectrophotometer. Approach: The profiles from follicular phase (6-12 days); ovulatory phase (13-14 days) and luteal phase (15-26 days) of menstrual cycle samples were compared … …American Journal of Biochemistry and Biotechnology, Vol. 6, Issue 3 · 30 Sep 2010 · 8,365 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRETRACTED: Analysis of Interfering Substances in the Measurement of Malondialdehyde Content in Plant LeavesYunSheng Wang, MaoDi Ding, XunGang Gu et al.The Thiobarbituric Acid (TBA) reactive substances assay is an easy and quick assay for the assessment in plants of lipid peroxidation, in which Malondialdehyde (MDA) is derivatized. To analyze the applicability of this method, the MDA concentrations in the leaves of different plants were measured by the TBA method. To further separate the interfering substances, fractional extraction and Gas Chromatography-Mass … …American Journal of Biochemistry and Biotechnology, Vol. 9, Issue 3 · 21 Sep 2013 · 9,288 accessesView PDFCite
Research ArticleOpen accessIn the keywordsPhysico-Chemical Characteristics of Date Seed Oil Grown in SudanRehab Salih Mahmoud Abdalla, Alsheikh AlGilani Albasheer, Abdel Rahim Mohamed ELHussein, ELrasheed Ahmed GadkariemProblem statement: Studies were conducted on the physical-chemical properties of Sudanese date seed oil extracted from two date palm cultivars (Phoenix dactylifera L.) ALBarakawi and Alqundeila. The extracted oil from ALBarakawi seeds weighed 6.833% w/w oil, Alqundeila oil extracted weighed 5.064% w/w. Approach: The physical properties of ALBarakawi oil were: viscosity: 17cp, refractive Index: 1.444, density: 0.9116 g cm-3 color: … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 5 May 2012 · 9,500 accessesView PDFCite
Research ArticleOpen accessIn the keywordsCharacterization of Epoxidized and Non-Epoxidized Fatty Diethanolamides by High Performance Liquid Chromatography and Gas ChromatographyChoy Sin Lee, Song Cang LeeProblem statement: This study was carried out for the characterization of epoxidized and non-epoxidized fatty diethanolamides by High Performance Liquid Chromatography (HPLC) and Gas Chromatography (GC). Approach: The fatty diethanolamides were synthesized by reacting 40% (w/w) of Epoxidized Palm Olein (EPOo) with 60% (w/w) Refined Bleached Deodorized Plam Kernel Olein (RBDPKOo) with Diethanolamine (DEA) at 110°C for 5 h. Results: … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 3 · 30 Sep 2010 · 7,449 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMetabolic Fingerprinting of Three Malaysian Ginger (Zingiber officinale Roscoe) Using Gas Chromatography-Mass SpectromertryH.J. Mahdi, R. Andayani, IshakProblem statement: There is a chemical variation among different ginger cultivars detected by previous studies including the volatile and non-volatile oleo-resins. In this study we try to determine whether these variations are related to a genetic factor rather than environmental or intrinsic factors. Approach: A comprehensive metabolic fingerprinting from the leaves of three micro-propagated ginger cultivars Bukit Tinggi, Tanjung Sepat … …American Journal of Applied Sciences, Vol. 7, Issue 1 · 31 Jan 2010 · 7,387 accessesView PDFCite
Research ArticleOpen accessIn the abstractFractionated Distillation Behavior and Aroma Component Enrichment of Citronella Oil (Cymbopogon winterianus Jowitt) from West SumatraDaimon Syukri, Anni Faridah, Bayu Indra Lesmana et al.This study aimed to separate the constituent components of citronella oil into several fractions with high purity and to identify the characteristics of the resulting fractions. The research was conducted using an exploratory approach to investigate the fractionation behavior of citronella oil more deeply. The raw materials were citronella oils obtained from three regions in West Sumatra: Batusangkar, Solok, and … …OnLine Journal of Biological Sciences, Vol. 26, Issue 3 · 10 Aug 2026 · 849 accessesView PDFCite
Research ArticleOpen accessIn the abstractMolecular Identification and Antioxidant Profiling of Penicillium heteringtonii EUA-017 from Mangrove (Avicennia alba) in West Sumatra, IndonesiaAnthoni Agustien, Djong Hon Tjong, Yetria Rilda et al.Mangrove ecosystems harbor diverse endophytic fungi that produce bioactive secondary metabolites with potential antioxidant activities. This study aimed to identify an endophytic fungal isolate (EUA-017) from Avicennia alba mangroves in West Sumatra, Indonesia, and characterize its antioxidant metabolites. Molecular identification was performed using internal transcribed spacer (ITS) region sequencing. Secondary metabolites from ethyl acetate extracts were characterized using Fourier-transform infrared … …OnLine Journal of Biological Sciences, Vol. 25, Issue 4 · 25 Mar 2026 · 1,410 accessesView PDFCite
Research ArticleOpen accessIn the abstractOptimization of Hydrodistillation Extraction by Response Surface Methodology and Evaluation of the Antioxidant and Antimicrobial Activities of Essential Oils from Phragmites communis (Cav) TrinXin-Tong Zou, Hong-Yuan Ma, Yu-He Li et al.The principal objectives of this study encompass three distinct aspects: firstly, to streamline the extraction process of Phragmites communis (Cav) Trin essential oil; secondly, to systematically analyze the essential oil’s chemical composition; and finally, to evaluate biological activity. Through the system optimization experiment, the optimal extraction process was determined: the crushing size was set to 10 mesh, the total solid-liquid … …American Journal of Biochemistry and Biotechnology, Vol. 21, Issue 3 · 6 Jan 2026 · 2,315 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Phytochemical Analysis of Hydrodistilled Essential Oils of Scots Pine (Pinus Sylvestris L.) Needles From Central KazakhstanKuralay Tuleshova, Margarita Ishmuratova, Asanali Aynabayev et al.This study presents a detailed phytochemical investigation of hydrodistilled essential oils extracted from the needles of Pinus sylvestris (Scots pine), collected from fifteen natural populations located in the Karaganda and Ulytau regions of Central Kazakhstan. The extraction was performed using hydrodistillation with hexane as a co-solvent, and the chemical composition of the oils was subsequently analyzed using gas chromatography–mass spectrometry … …OnLine Journal of Biological Sciences, Vol. 25, Issue 4 · 28 Nov 2025 · 2,696 accessesView PDFCite