Headspace solid phase microextraction
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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Simultaneous Determination of Disinfection By-products in Water Samples from Advanced Membrane Treatments by Headspace Solid Phase Microextraction and Gas Chromatography-Mass Spectrometry
... development of a highly sensitive method for their simultaneously determination has become a priority. Several extraction techniques can be used for the extraction of disinfection by-products from water samples such as ...
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Characterization of volatile compounds of Daucus crinitusDesf. Headspace Solid Phase Microextraction as alternative technique to Hydrodistillation
... these, headspace solid phase microextraction (HS-SPME) allows for the rapid fingerprinting of a plant’s headspace [7-10], and HS sampling requires the optimization of the extraction ...
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Optimization of the Headspace Solid-Phase Microextraction Gas Chromatography for Volatile Compounds Determination in Phytophthora Cinnamomi Rands
... by solid-phase microextraction fibers and detected by gas chromatography that are produced by ...A headspace solid-phase microextraction (HS-SPME) together with gas ...
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Optimization of headspace solid-phase microextraction conditions for the identification of volatiles compounds from the whole fruit of lemon, lime, mandarin and orange
... that headspace solid-phase microextraction combined with gas chromatography and flame ionization detection can be used to detect VOC/s from whole citrus fruit species without cutting or ...
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Analysis of aroma components of dark teas from five different production regions by fully automatic headspace solid phase microextraction coupled with gas chromatography mass spectrometry
... automatic headspace solid-phase microextraction (HS-SPME) method was constructed for extracting the volatiles and gas chromatography-mass spectrometry (GC-MS) coupled with retention index (RI) ...
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Nuclear Magnetic Resonance and Headspace Solid-Phase Microextraction Gas Chromatography as Complementary Methods for the Analysis of Beer Samples
... compounds) headspace capillary Gas Chromatography (GC) is commonly used. Headspace Solid-Phase Microextraction (SPME) is a simpler and less expensive alternative to static ...the ...
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Integration of GC MS Based Non Targeted Metabolic Profiling with Headspace Solid Phase Microextraction Enhances the Understanding of Volatile Differentiation in Tobacco Leaves from North Carolina, India and Brazil
... In this report, gas chromatography-mass spectrometry (GC-MS) based non-targeted metabolomics is used to develop appropriate headspace solid phase microextractions (HS-SPME) to enhance the ...
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Application of Polypyrrole Coated Stainless-Steel Wire to the Headspace Solid-Phase Microextraction of Aliphatic Amines
... A 10-mL aliquot of aqueous solution containing 1.0 µg.mL −1 of each of the target analytes was extracted with PPy fibre using the headspace SPME mode. Samples were placed in 25 mL glass vial with a PTFE- silicon ...
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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 results suggested that the two methods were complementary in that the SH method extracted the more volatile compounds acetaldehyde, acetone and 2-butanone whereas, the HS-SPME method[r] ...
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The Essential Oils from Pittosporum tobira Flowers Display Antiproliferative Properties and Inducing Apoptosis on Lung Carcinoma Cells
... Background: Pittosporum tobira (Thunb.) Aiton is an aromatic medicinal plant widely cultivated in the world. However, the essential oils (EOs) from P. tobira flowers for anti-cancer potential is still not systematically ...
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Liquid and solid phase microextraction methods for the analysis of organic environmental pollutants
... A Headspace Solid-Phase Microextraction Procedure Coupled with Gas Chromatography-Mass Spectrometry for the Analysis of Volatile Polycyclic Aromatic Hydrocarbons in Milk ...
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Determination of volatile alkylpyrazines in microbial samples using gas chromatography-mass spectrometry coupled with head space-solid phase microextraction
... as headspace and purge and trap. Headspace ex- traction used for volatile analytes in solid or liquid sam- ples is preferable technique for a quality control but the sensitivity is limited (Pawliszyn ...
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Optimized Method to Analyze Rose Plant Volatile Organic Compounds by HS SPME GC FID/MSD
... involving Headspace solid-phase microextraction (HS-SPME) fiber combined with gas chromatography (GC) coupled with flame ionization de- tection (FID) and gas chromatography with mass ...
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Quantitative Monitoring of the Volatiles from The Aerial Parts of Satureja Hortensis by The Use of HS-SPME-GC-MS Approach
... the headspace solid phase microextraction (HS-SPME) strategy and subsequently monitored using gas chromatography in combination with mass spectrometry (GC-MS) ...
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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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Volatile composition analysis by solid-phase microextraction applied to oak wood used in cooperage (Quercus pyrenaica and Quercus petraea): effect of botanical species and toasting process
... Before the first daily analysis, the fiber was conditioned for 5 min at 250°C in the gas chromatograph (GC) injector. An aliquot of 10 ml of model wine solution or 1 g of oak wood-chip sample was transferred into a 22-ml ...
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SOLID PHASE MICROEXTRACTION Biomedical Applications pdf
... SPME. Headspace R bre SPME is suitable for the extraction of drugs in gaseous, liquid and solid sam- ples, because of the avoidance of contact with an aggressive matrix incompatible with the R ...The ...
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Determination of some selected pesticide residues in apple juice by solid-phase microextraction coupled to gas chromatography – mass spectrometry
... sampled with PA (85 m) and PDMS (100 m) fi bres. The fi bre coating was directly exposed to the aque- ous phase at room temperature. Due to the rather low vapour pressures and volatilities of the target ...
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Developments/Application of Ionic Liquids/Poly Ionic Liquids in Magnetic Solid-Phase Extraction and Solid Phase Microextraction
... Many studies aimed to exploit the hydrogen bond accepting property of the chloride anion so as to extract polar analytes including phenols, volatile fatty acids (VFAs), and alcohols. For comparison purposes, a PIL ...
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