Characterisation of flavour compounds formed by γ-irradiation of polypropylene

Tyapkova, Oxana; Czerny, Martin; Buettner, Andrea

doi:10.1016/j.polymdegradstab.2009.02.006

Cited by 51 publications

(45 citation statements)

References 23 publications

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“…• absorption/desorption 42 • close loop stripping 43 • fogging residue after dissolution 44 • leaching to water 45 • solid phase microextraction 32 • thermal desorption/cold trap 46 • volatiles extraction from plastic material [47][48][49] The above methods of sample preparation for GC/MS studies are discussed below.…”

Section: Gc/msmentioning

confidence: 99%

“…46 Known volume of air was drawn through the Tenax tubes using a calibrated air pump. 46 Volatiles from polyethylene packaging, 47 polypropylene irradiated with -rays, 48 and multilayer packaging, 49 which was -sterillized, were extracted by solvents. In the case of polyethylene packaging, the sample was steam-distilled at atmospheric pressure, and the distillate was methylenechloride-extracted.…”

Section: Gc/msmentioning

confidence: 99%

“…47 Volatiles were extracted from the powdered polypropylene with dichloromethane for 1 h at room temperature. 48 Dichloromethane solution was dried over anhydrous sodium sulfate, and concentrated to a total volume of 150 mL at 50 o C by means of Vigreux distillation. 48 The irradiated packaging material was placed in a sealed vial and extracted three consecutive times with 2.5 mL of hexane (24 h, 40 o C).…”

Section: Gc/msmentioning

confidence: 99%

“…48 Dichloromethane solution was dried over anhydrous sodium sulfate, and concentrated to a total volume of 150 mL at 50 o C by means of Vigreux distillation. 48 The irradiated packaging material was placed in a sealed vial and extracted three consecutive times with 2.5 mL of hexane (24 h, 40 o C). 49 The solution was concentrated under a stream of pure N 2 to 200 L.…”

Section: Gc/msmentioning

confidence: 99%

See 3 more Smart Citations

Methods of Testing in Odor Analysis

Wypych¹

2013

Handbook of Odors in Materials

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Section: Gc/msmentioning

confidence: 99%

Section: Gc/msmentioning

confidence: 99%

Section: Gc/msmentioning

confidence: 99%

Section: Gc/msmentioning

confidence: 99%

See 2 more Smart Citations

Methods of Testing in Odor Analysis

Wypych¹

2013

Handbook of Odors in Materials

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“…[3][4][5][6][7] Due to the similar mass spectrometry (MS) fragmentation pattern of carbonyls compared to alkanes and alkenes, analysis of odour-active carbonyls in polyolefins can be tricky as the vast majority of volatiles present in PE and PP consists of linear and branched alkanes and alkenes. In practise three ways to solve this analytical problem are thinkable:…”

Section: Introductionmentioning

confidence: 99%

Comparison of Different Analytical Methods for Volatile and Odour‐Active Substances in Polyolefins

Hopfer¹,

Sauer²,

Haar³

et al. 2010

Macromolecular Symposia

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Summary: Emissions of volatiles of polymeric materials are an important parameter for materials characterisation, and gain more and more importance either by their odour activity or by other undesired behaviour. Currently, numerous methods are applied for the determination of volatiles, but all of them use gas chromatography (GC) with different detectors. The information gained by flame ionisation detection (FID) is the total emitted volatiles expressed as a sum value, but no further deeper information is provided. Additionally, due to different sample amounts, preparation, way of sampling and GC parameters, results cannot be compared to each other. Also, determination of single sum values by integrating the total area of volatiles is of little help for material development due to the lack of detailed information about chemical composition, and other methods have to be applied. Other compounds of interest such as odour-active ones turn up in only very small amounts and cannot be detected by these methods as an extensive analytical sample preparation is necessary. We compare results obtained by different sample preparation techniques used in industrial standards (VDA 277 and VDA278) to scientific alternatives such as Solid Phase Microextraction (SPME) coupled to GC with mass spectrometry (MS) and Simultaneous Distillation/Extraction SDE coupled to GC-MS to demonstrate capabilities and applicability of each method.

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Irradiation of Packaging Materials in Contact with Food: An Update

Komolprasert

2012

Food Irradiation Research and Technology

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Characterisation of flavour compounds formed by γ-irradiation of polypropylene

Cited by 51 publications

References 23 publications

Methods of Testing in Odor Analysis

Methods of Testing in Odor Analysis

Comparison of Different Analytical Methods for Volatile and Odour‐Active Substances in Polyolefins

Irradiation of Packaging Materials in Contact with Food: An Update

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