static headspace
Article Identification of volatile compounds and selection of discriminant markers for elephant dung coffee using static headspace gas chromatography–mass spectrometry and chemometrics
... a headspace approach that involves the sampling of the gas phase above the sample in a closed ...container. Headspacesolid phase microextraction (HSSPME) with a specific fiber has been widely used to ...
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Identification of volatile organic compounds of some Trichoderma species using static headspace gas chromatography-mass spectrometry
... various headspace (HS) techniques: e.g . static headspace, dynamic headspace (purge and trap) and solid phase microextraction (Stoppcher et al ...In static headspace analysis, ...
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A Simple Static Headspace Method for Phase Equilibrium Measurement
... Henry’s law constants and activity coefficients at infinite dilution of 13 environmentally important organic compounds were measured by the simple static headspace method. This technique provides a ...
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Analysis of Residual Solvents in Annatto Extracts Using a Static Headspace Gas Chromatography Method
... designated static headspace gas chromatogra- phy (HSGC) with a flame ionization detector (FID) as the general analytical method for the determination of resid- ual solvents in food additives ...The ...
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Microbes a Tool for the Remediation of Organotin Pollution Determined by Static Headspace Gas Chromatography-Mass Spectrometry
... of analytes between a non-volatile solid phase, after heating and agitation of the sample the equilibrium (Cg =(C 65.. o)/(k+β) ((Cg) the concentration of the analyte, (Co ) ana[r] ...
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The Effects of Protein Concentration and Temperature on Flavor Delivery of 2,4-Dimethylbenzaldehyde and Ethyl Butyrate in Whey Protein Isolate Solutions
... One of the problems faced with static headspace chromatography is “carry over”. The syringe used to sample the vapor for analysis can adsorb a significant amount of the volatile being analyzed. This problem ...
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Headspace delivery of limonene from the serum and non serum fractions of orange juice in vitro and in vivo
... the headspace of freshly prepared orange juice was evaluated both in-vitro and ...the static headspace concentration of limonene with a 210 fold increase with 10 g/100 g pulp ...the headspace ...
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Odor Active Volatile Compounds from the Gonads of the Sea Urchin Mesocentrotus nudus in the Wild in Miyagi Prefecture, Tohoku, Japan
... gonads, headspace volatile compounds were collected in a large volume static headspace system (Entech 7100A series; Entech Instruments ...volume static headspace, which was stored in an ...
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Development and Validation of Static HS-GC Method for the Determination and Quantification of Residual Solvents of Bromhexine Hydrochloride (BHX)
... robust static headspace gas chromatography method forthe determination of residual solvents, namely methanol, ethanol, ethyl acetate, monochlorobenzene and benzene, in ...solvents, Static ...
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Variations in the headspace volatile profiles of three different Achillea coarctata Poir. (Asteraceae) populations
... by static headspace method and interrelationships based on the volatiles profiles from different plant parts, three different populations and geological substrates, using multivariate statistical ...
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Chemical Analysis of Volatile Constituents of Pulicaria Mauritanica Isolated by Hydrodistillation and Headspace Solid-phase Micro-extraction Techniques. Antimicrobial Activity of its Essential Oil
... Thereby, headspace solid- phase microextraction (HS-SPME) is an easy, fast and modern sample preparation technique to characterize the volatile fraction (VF) of aromatic and medicinal plants ...
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Terpene composition of essential oils
... Successive injections of vapour from a single sample of comminuted foliage, by the syringe-headspace technique, often exhibit changes in the proportions of some components with respect t[r] ...
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Regenerated desiccant devices for cooling stored grains
... that the calculated grain temperatures agree with the recorded data very well along the centerline of the silo and the more accurate methods of simulating the headspace and the wall of[r] ...
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Proof of bacteria and the activity of chemical and natural antibiotics by headspace gas chromatography
... by headspace gas chromatography and to investigate the efficacy of chemical antibiotics and of natural compounds with antimicrobial ...closed headspace vials and obligate anaerobes too, if the air above the ...
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Cultured skin microbiota attracts malaria mosquitoes
... the headspace analysis in this study and is associated with foot malodour ...our headspace GC-MS chromatogram of headspace samples of skin ...
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FUMIGANT TOXICITY OF MELALEUCA LEUCADENDRON L. AND HYPTIS SUAVEOLENS L. ESSENTIAL OILS AGAINST PLUTELLA XYLOSTELLA L. (LEPIDOPTERA: YPONOMETIDAE)
... This study demonstrated that headspace of EO extracted from leaves of H. suaveolens and M. leucadendron were highly toxic to P. xylostella larvae. Overall, even if it is not easy to determine which are the ...
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Studies on interactions of milk proteins with flavour compounds : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Food Technology at Massey University, Palmerston North, New Zealand
... The objectives of this research were to develop a headspace solid-phase microextraction SPME method followed by gas chromatography with flame ionisation detection GC-FID for the investi[r] ...
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Headspace analysis of natural yoghurt using headspace solid phase microextraction : a thesis presented in partial fulfilment of the requirements for the degree of Master of Philosophy in Food Technology at Massey University (Turitea Campus), Palmerston North, New Zealand
... The main objective of this study was to devise a methodology for the Headspace Solid Phase Microextraction HS-SPME technique to investigate and quantify six flavour analytes in natural, [r] ...
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Analysis of the volatile organic compounds from leaves, flower spikes, and nectar of Australian grown Agastache rugosa
... In order to determine the amount of estragole and other volatile compounds presents in the Australian-grown A. rugosa flowers with nectar, flowers spikes, and leaves, the samples were subjected to HS–SPME/GC–MS ana- ...
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Solid Phase Microextraction pdf
... the headspace mode (Figure 2B), the analytes are extracted from the gas phase equilibrated with the ...The headspace mode also allows matrix modi R cations, including pH adjustment, without affecting the R ...
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