Results 291 to 300 of about 179,472 (317)

Stationary monitoring and source apportionment of VOCs in a chemical industrial park by combining rapid direct-inlet MSs with a GC-FID/MS.

Science of The Total Environment, 2021
Fast and comprehensive monitoring of VOCs, required for air quality management in large-scale chemical industrial parks in China, cannot be accomplished by stationary measurements using conventional GC-FID or GC-MS alone due to their low temporal resolutions and limited detectable ranges.
Yinzhi Huang, Song Gao, Shijiang Wu, Xiang Che, Yong Yang, Junjie Gu, Wen Tan, Dinghua Ruan, G. Xiu, Q. Fu   +9 more
semanticscholar   +3 more sources

GC-FID/MS method for the impurity profiling of synthetic d-allethrin.

Journal of Separation Science, 2004
AbstractA GC/FID/MS method was developed for the identification and quantification of d‐alle thrin (DA) and its major impurities in commercial samples. Optimisation of the experimental conditions was carried out considering such important requirements as resolution, reproducibility, detection limits of 0.1% (m/m) for the impurities, and short analysis
M. Bragieri, A. Liverani, M. Zanotti, V. Borzatta, J. Fiori, V. Cavrini, V. Andrisano   +6 more
semanticscholar   +3 more sources

Pyrolysis behaviour study of a tar- and sulphur-rich brown coal and GC–FID/MS analysis of its tar

Journal of Analytical and Applied Pyrolysis, 2015
Abstract A non-energetic utilisation of brown coal is enabled by the thermo-chemical treatment method of pyrolysis. During this process, the tar/oil fraction of the coal is released and can serve as raw material for the petrochemical industry.
Michaela Nguyen, Christiane Berndt, D. Reichel, S. Krzack, B. Meyer   +4 more
semanticscholar   +2 more sources

GC-FID/MS Analysis of Fatty Acids in Indian Cultivars of Moringa oleifera: Potential Sources of PUFA

Journal of the American Oil Chemists' Society, 2014
AbstractIn the present investigation, the fatty acid profile was analysed in vegetative and reproductive parts of eight commercially cultivated Indian cultivars of Moringa oleifera and verified by gas chromatography mass spectra. In leaves, α‐linolenic acid (C18:3, cis‐9,12,15) was found in the highest quantity (49–59 %) followed by palmitic acid (C16 ...
R. Saini, N. Shetty, P. Giridhar
semanticscholar   +2 more sources

GC-FID/MS Profiling of Supercritical CO2 Extracts of Peels from Citrus aurantium, C. sinensis cv. Washington navel, C. sinensis cv. Tarocco and C. sinensis cv. Doppio Sanguigno from Dubrovnik Area (Croatia) [PDF]

Natural Product Communications, 2015
The peels of Citrus aurantium L. and Citrus sinensis Osbeck cultivars from the Dubrovnik region (south Croatia) were extracted by supercritical CO2 at 40°C and 10 MPa at 1.76 kg/h to obtain enriched extracts in comparison with simple pressing of the peels.
I. Jerković, J. Družić, Z. Marijanović, Mirko Gugić, S. Jokić, M. Roje   +5 more
semanticscholar   +4 more sources

Quantitative Profiling of Volatile and Phenolic Substances in the Wine Vernaccia di Serrapetrona by Development of an HS-SPME-GC-FID/MS Method and HPLC-MS

Food Analytical Methods, 2014
A headspace solid-phase microextraction coupled to gas chromatography with mass spectrometry and flame ionization detection (HS-SPME-GC-MS/FID) method has been developed for quantifying the main volatiles of the Italian sparkling red wine Vernaccia di Serrapetrona, leading to establish that the divinylbenzene/carboxen/polydimethylsiloxane-coated (gray)
D. Fiorini, G. Caprioli, G. Sagratini, F. Maggi, S. Vittori, E. Marcantoni, R. Ballini   +6 more
semanticscholar   +3 more sources

Analiza etarskih ulja i hidrolata odabranih biljnih vrsta porodice Lamiaceae pomoću GC-FID/MS tehnike

2021
Cilj istraživanja je određivanje hemijskog sastava etarskih ulja i hidrolata odabranih biljnih vrsta (Nepeta cataria, Melissa officinalis, Origanum vulgare, Ocimum basilicum var. genovese, Salvia officinalis) iz porodice Lamiaceae, kako bi se utvrdila potencijalna primena analiziranih hidrolata. U radu je opisana analiza hemijskog sastava etarskih ulja
openaire   +2 more sources

Tiered approach to long-term weathered lubricating oil analysis: GC/FID, GC/MS diagnostic ratios, and multivariate statistics.

Analytical Methods, 2020
Frequent small-scale environmental releases of lubricating (lube) oils have deleterious effects on aquatic ecosystems. In the event of a spill, oil fingerprinting is critical to source attribution, clean-up procedures, and liability assignment.
Candice C. Chua, P. Brunswick, Honoria Kwok, Jeffrey Yan, D. Cuthbertson, G. V. van Aggelen, D. Shang   +6 more
semanticscholar   +1 more source

A Peer Inter-laboratory Study of SPME-GC-FID/MS Method for theAnalysis of Volatile Compounds in Virgin Olive Oils for Supporting Panel Test: Extracted Conclusions and Future Directions

Proceedings of the Virtual 2021 AOCS Annual Meeting & Expo, 2021
The sensory assessment of virgin olive oils is officially carried out by a sensory panel that identifies positive and negative sensory attributes to classify the oils according to their quality grades, namely extra virgin (EV), virgin (V) and lampante (L). The workload of sensory panels, the limited number of them and the need for a confirmative robust
Diego L. García-González, Enrico Casadei, Enrico Valli, Ramón Aparicio-Ruiz, Clemente Ortiz Romero, Maurizio Servili, Roberto Selvaggini, Florence Lacoste, Julien Escobessa, Stefania Vichi, Beatriz Quintanilla-Casas, Pierre Alain Golay, Paolo Lucci, Erica Moret, Alessandra Bendini, Tullia Gallina Toschi   +15 more
openaire   +3 more sources