Spme gc ms
HS SPME/GC/MS profiles of convectively and microwave roasted Ivory Coast Robusta coffee brews
... HS-SPME/GC/MS revealed that furans were the dominant volatile organic compounds emitted from the examined samples of Robusta coffee brews ir- respective of the roasting method. They accounted for ...
10
Anti malarial activity and HS SPME GC MS chemical profiling of Plinia cerrocampanensis leaf essential oil
... The monoterpene α-pinene displayed a stronger anti- malarial activity than quinine when tested against a CQ- resistant strain of P. falciparum, mainly affecting the ring stage of the parasite [29]. β-linalool and ...
9
Variability of single bean coffee volatile compounds of Arabica and robusta roasted coffees analysed by SPME GC MS
... applied SPME-GC-MS for the analysis of volatile compounds in roasted Arabica and robusta coffee to classify three robusta coffee samples based on their geographical origin, but no clear clustering was ...
13
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 ...
14
Detection of Mediterranean fruit fly larvae Ceratitis capitata (Diptera: Tephidae) in different types of fruit by HS-SPME GC-MS method
... Fruit infested with Medfly or other insect eggs, release unique volatile com- pound. These compounds can be exploited to provide tools for improved pest detection. Finally, this research provides the basis for ...
16
Quantitative Monitoring of the Volatiles from The Aerial Parts of Satureja Hortensis by The Use of HS-SPME-GC-MS Approach
... In the present report, we intend to describe the results of quantitative and qualitative analyses of the volatiles obtained from the aerial parts of S. hortensis using the HS-SPME-GC-MS approach. In ...
8
HS SPME/GC MS Analysis of VOC and Multivariate Techniques Applied to the Discrimination of Brazilian Varieties of Mango
... The SPME extractions were performed using fiber coated with Carboxen/polydimethylsiloxane (75 µm) (Supelco, Bellefonte, PA, ...the SPME device was introduced manually into the vial and the fibers were ...
8
Resolution of volatile fuel compound profiles from Ascocoryne sarcoides: a comparison by proton transfer reaction-mass spectrometry and solid phase microextraction gas chromatography-mass spectrometry
... and SPME GC/MS ...the SPME fiber are shown in Figure ...The SPME results agree less favorably quantitatively and are discussed ...and SPME agree on the identification of the ...
13
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 ...
9
Characterization of Volatile Components of Eight FengHuang Dancong Manufactured Teas and Fresh Leaves by HS-SPME Coupled with GC-MS
... heat-instable volatile components, and maintaining analytic stability Tea volatile components can be affected by tea variety, environmental factors, cultivation conditions, and processing conditions [14]. In the present ...
13
SOLID PHASE MICROEXTRACTION Overview pdf
... The SPME R bre is then exposed directly to the resultant suspension or slurry for a prespeci R ed time (1 } 60 min) and then ...the SPME R bre can be placed inside a protective membrane in the ...slurry ...
10
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
... by GC-MS with two different extraction techniques, hydrodistillation (HD) and ultrasonic-assisted headspace solid phase microextraction ...the SPME method, the volatile components of the samples, ...
9
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
... DI-SPME GC–MS is a highly efficient extraction and a sensitive analytical method for the determination of non-derivatized insect lipids in cuticular and homogenized body ...
14
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
... 18. Zhang, C., M. Qi, Q. Shao, S. Zhou and R. Fu, 2007. Analysis of the volatile compounds in Ligusticum chuanxiong Hort. using HS-SPME-GC-MS. J. Pharm. Biomed. Anal., 44: 464-470. 19. Niu, Y., G. ...
7
Lipid oxidation of fat blends modified by monoacylglycerol
... HS-SpmE/GC/mS: The fiber was desorbed for 7 min in the splitless injection port at 240°C. The column temperature program was 40°C for 7 min and was followed by anincreased to 200°C at 5 K per minute. ...
7
Comparison of headspace–SPME and SPME-Arrow–GC–MS methods for the determination of volatile compounds in Korean salt–fermented fish sauce
... The SPME–GC–MS and SPME-Arrow–GC–MS analy- ses were performed using a Triplus RSH Autosampler coupled with a TRACE 1310 GC system, and ISQ LT sin- gle quadrupole mass ...
8
Identification of volatile organic compounds of Anethum L juice using headspace and direct solid phase micro extraction (HS SPME, DI SPME) gas chromatography mass spectrometry(GC/MS)
... 211 The analysis of the chemical components by the both technique were performed by GC/MS. Figs. 1 and 2, show the chromatograms of HS-SPME and DI-SPME of Anethum L. juice, respectively. The ...
6
Comparison of GC/time-of-flight MS with GC/quadrupole MS for halocarbon trace gas analysis
... (TOF MS) for the analysis of halocarbons in the atmosphere after cryogenic sample preconcentration and gas chromatographic ...(QP MS) is a state-of-the-art ...QP MS and a TOF MS, with respect ...
12
GC, GC/MS CHARACTERIZATION OF THE ENICOSTEMA LITTORALE
... The whole plant parts of Enicostema littorale collected around from the Tirunel veli District obtained good yield. The crude extract was examined by a combination of capillary GC and GC/MS. In some ...
9
Exploration of Bioactive Compounds from Camponotus compressus using Gas Chromatography - Mass Spectroscopy for Therapeutic Applications
... Interpretation of Gas Chromatogram mass spectrum (GC-MS) was done using the database of National Institute of Standard and Technology (NIST) having more than 62,000 patterns. The spectrum of the unknown ...
9