SPME-GC-FID/MS
Optimization and validation for determination of volatile organic compounds from mediterranean fruit fly (Medfly) ceratitis capitata (diptera: Tephritidae) by using HS-SPME-GC-FID/MS
... Background and Objective: The Mediterranean fruit fly (Medfly) Ceratitis capitata (Diptera: Tephritidae), as most of the Tephritidae species, is a pest of great economic importance around the world. Volatile organic ...
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Optimized Method to Analyze Rose Plant Volatile Organic Compounds by HS SPME GC FID/MSD
... The SPME technique gives simultaneously tens or hundreds of possible volatile compounds, but it must be optimized for the vola- tiles being targeted [28] ...
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Influence of benzyladenine on metabolic changes in different rose tissues
... Our study demonstrates that the collection of VOCs from fresh leaves, stems, rhizospheres and whole plants by HS-SPME coupled with GC-FID/MS represents a sensitive, rapid and effective method ...
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Profiling of volatile compounds from five interior decoration timbers in Taiwan using TD/GC–MS/FID
... In recent years, solid-phase microextraction (SPME) cou- pled with gas chromatography–mass spectrometry (GC–MS) has been employed to analyze fragrance compositions of precious coniferous woods [4], ...
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HS SPME/GC/MS profiles of convectively and microwave roasted Ivory Coast Robusta coffee brews
... at 250°C that ensured complete removal of caffeine from the column. The temperatures of the injector and detector were set at 250°C. The flow rate of carrier gas (N 2 ) was 1 ml/minute. Nitrogen can be used especially in ...
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New method of analysis of lipids in Tribolium castaneum (Herbst) and Rhyzopertha dominica (Fabricius) insects by direct immersion solid-phase microextraction (DI-SPME) coupled with GC–MS
... The extraction of lipids from insects is the first critical step that leads to a reliable qualitative and quantitative analysis of insect lipids [1]. Numerous methods have been used to extract insect lipids; however, ...
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SOLID PHASE MICROEXTRACTION Overview pdf
... by GC with S ame ionization detector (FID), nitrogen-phosphor- ous detector (NPD) or mass spectrometer (MS), using a 95 m polyacrylate-coated R bre, are shown in Table ...Other SPME conditions ...
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Multifactorial Optimization Approach for Determination of Polycyclic Aromatic Hydrocarbons in Sea Sediments of Turkish Mediterranean Coast
... Present study aims the optimisation and validation of the extraction procedures for the determination of poly- cyclic aromatic hydrocarbons (PAHs) in sediment samples. As analytical techniques, gas chromatography- mass ...
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Quantitative and enantioselective analysis of monoterpenes from plant chambers and in ambient air using SPME
... three SPME fibre coatings: 75 µm Carboxen- PDMS (CAR-PDMS), 50/30 µm divinylbenzene-carboxen- polydimethylsiloxane (DVB-CAR-PDMS) and 65 µm divinylbenzene-polydimethylsiloxane ...the SPME system have been ...
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HS-SPME-GC-MS Analyses of Volatiles in Plant Populations – Quantitating Compound × Individual Matrix Effects
... Abstract: Headspace solid phase microextraction (HS-SPME) coupled to gas chromatography-mass spectrometry is widely employed for volatile analyses of plants, including mapping populations used in plant breeding ...
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HS SPME/GC MS Analysis of VOC and Multivariate Techniques Applied to the Discrimination of Brazilian Varieties of Mango
... ture, ˚C; extraction (adsorption) and desorption time, min), applying three repetitions at the central point to evaluate the experimental error. The evaluated levels, as well as the experimental ranges, are shown in ...
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Comparative Analyses of the Volatile Components of Citrus Aurantium L. Flowers Using Ultrasonic-Assisted Headspace SPME and Hydrodistillation Combined with GC-MS and Evaluation of their Antimicrobial Activities
... the GC-MS instrument were set at 250 ºC and 260 ºC, .... GC was operated in a splitless mode, for SPME, or with a split ratio of 1:50, for HD ...total GC run time of 46 ...
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Comparison of SPME and SFE for the Determination of Volatile Constituents in Thymus vulgaris L. Lamiaceae
... whereas SPME required a low-cost fiber. Moreover, SPME utilized a simple sampling procedure and very short extraction time (30 min) to obtain a greater amount of volatile compounds compared to ...the ...
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Identification of Volatile Biomarkers of Gastric Cancer Cells and Ultrasensitive Electrochemical Detection based on Sensing Interface of Au-Ag Alloy coated MWCNTs
... by SPME/GC-MS, using advantages of carbon nanotubes and nobel metal nanoparticles, a new electrochemical sensing interface, composed of Au-Ag alloy nanoparticles coating multi-walled car- bon ...
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Lipid oxidation of fat blends modified by monoacylglycerol
... (by SPME in connection with GC-MS) lipid oxidation products and oil stability index (OSI) were measured during autoxidation of the fat blends in storage ...
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The Essential Oils from Pittosporum tobira Flowers Display Antiproliferative Properties and Inducing Apoptosis on Lung Carcinoma Cells
... The solid-phase microextraction holder consistent match a replaceable extraction fibre, coated with 100 µm polydimethylsiloxane (CAR/PDMS; Supelco) and extra block heater, headspace vials (7 mL) and accessories. The ...
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A comparison of GC-FID and PTR-MS toluene measurements in ambient air under conditions of enhanced monoterpene loading
... et al., 1994). A similar method as outlined above was pre- viously applied to estimate nighttime nitrate radical mixing ratios at the AIRMAP atmospheric monitoring station on Ap- pledore Island, Maine (Ambrose et al., ...
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Determination of volatile alkylpyrazines in microbial samples using gas chromatography-mass spectrometry coupled with head space-solid phase microextraction
... samples. GC time of flight mass spectrometer (GC-TOFMS) has the capability of very fast data acquisi- tion (up to 500 spectra/second) to provide a full mass spectrum for each chromatographic point (Bergknut ...
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Pharmacognostical, Phytochemical and Pharmacological Evaluation on Leaves and Volatile Oil of Citrus Limon.(Linn.)
... Saotoing P.et.al., 2011 2.6.2 Phytochemical studies The volatiles emitted in vivo by different parts of Citrus limon, have been identified by HS-SPME and GC-MS analyses, The particular p[r] ...
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Anti malarial activity and HS SPME GC MS chemical profiling of Plinia cerrocampanensis leaf essential oil
... from 7.3 μ g/mL to 1.1 μ g/mL. The measured combination index was 0.58, which clearly indicates that the EO acts synergistically with chloroquine. Since the EO maintained its inhibitory activity on the ...
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