La chromatographie en phase gazeuse (CPG) est, comme toutes les techniques de chromatographie, une technique qui permet de séparer. chromatographie phase gazeuse portable CPG (appareils) / mobile gas chromatography GC instruments · chromatographie phase gazeuse portable CPG. CPG stands for Chromatographie en Phase Gazeuse (French: Gas Phase Chromatography). CPG is defined as Chromatographie en Phase Gazeuse ( French.

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A variety of applications underlines the high interest of these techniques.

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This paper aims to point out the interest and the advantages of multidimensional gas chromatography MDGC for performing trace analysis in complex organic mixtures chromaotgraphie as hydrocarbon mixtures, petroleum or oil samples, and typical feeds and products from refinery or petrochemical processes. Wednesday, July 21, – 8: The current usage metrics is available hours after online publication and is updated daily on week days. Four major types of hairs were identified, same as described in R.

Trace Analysis in the Petroleum Industry. The mixture of etha-nol and ethyl acetate is a simple, cheap and interesting chromatogarphie as an alternative for plant baits for R. Two types of hairs corres-pond to trichoid and basiconic olfactory sensilla.



EAG amplitudes cjromatographie six molecules were higher when the recording electrode was connected onto the internal compared to the external face but the same response profile was obtained on dorsal, central or ventral positions of each club face.

Initial download of the metrics may take a while. Metrics Show article metrics. None of the more complex blends was more efficient. Current usage metrics About article metrics Return to article. In these cases, the success of trace analysis strongly depends on the separation step.

chrpmatographie IFP, 60 6 Abstract. Density of basiconic sensilla is higher on female than male antennal club and on internal than external face of the club in both sexes.

Multidimensional gas chromatography could therefore provide an phaae of detection capacity leading to a better identification and quantification of trace components. Semiochemical-based trapping can play an important role in the integrated management of this pest but the necessity of using plant material as a synergist of the aggregation phero-mone has limited the efficacy and development of the trapping in desert areas. There was a strong variability of the relative effect of this blend with respect to the date palm tissue during three years of experiments.

Components of the odours of date palm stem putatively active on the insect’s behaviour were screened by coupled gas chromatography-electroanten-nodetection GC-EAG.

Have you forgotten your login? A total of molecules were identified in odours from date palm. Among all blends, a mixture of ethanol and ethyl acetate Previous article Next article. Article Abstract PDF Data correspond to usage on the plateform after Thursday, September 30, – 6: Vendeuvre 1 and D. Coupled gas chromatography – mass spectrometry GC-MS was used to chrromatographie the components of the odours of chromatoyraphie palm stem isolated by effluvia collection.


Services Articles citing this article CrossRef Bertoncini 1C. A morphofonctional study of the antenna by scanning electronic microscopy SEM and elec-troantennography EAG was realised prior to GC-EAG to verify whether there is an olfactory regionalisation on the antennal club.

A description of typical instrumentation is given with emphasis on recent developments and improvements in MDGC. The pherosyner-gistic effects of two blends based on the analyses of odours from date palm, one blend of EAG active molecules and 21 blends based on 52 molecules reported from the literature were studied.

In order to use a synthetic pheromone synergist we screened by field trapping the synergistic effect chromatoggaphie molecules identified: