Direct quantitation of volatile organic compounds in packaging materials by headspace solid-phase microextraction–gas chromatography–mass spectrometry

Ezquerro, Óscar; Pons, Begoña; Tena, Marı́a Teresa

doi:10.1016/s0021-9673(02)01829-0

Cited by 51 publications

(29 citation statements)

References 21 publications

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“…Implicit in this equation is that the diffusion flux of BVOC occurs through stomata. This assumption has been experimentally verified for isoprene and monoterpenes, where bulk of the emission flux occurred through the leaf lower side harboring the stomata (Fall and Monson, 1992;Loreto et al, 1996). In addition, very low cuticular monoterpene permeabilities have been demonstrated (Schmid, 1991).…”

Section: Effects Of Bvoc Buildup In the Measurement Chamber On Calculmentioning

confidence: 89%

“…As the result of slow time-and temperature-dependent decomposition, rubber and plastic materials may also constitute a contamination source of VOCs inherent to the material (Ezquerro et al, 2003;Fujii et al, 2003;Hartman, 1999;Hodgson et al, 1998;StewartJones and Poppy, 2006;Westerhout et al, 1997). Apart from tubing and chamber wall materials, adhesive tapes are often used to attach films or tubing to support structures or to attach heating wires to tubing.…”

Section: Materials Used In Gas-exchange Systemsmentioning

confidence: 99%

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Estimations of isoprenoid emission capacity from enclosure studies: measurements, data processing, quality and standardized measurement protocols

Niinemets

Kühn²,

Harley³

et al. 2011

Biogeosciences

187

145

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Abstract. The capacity for volatile isoprenoid production under standardized environmental conditions at a certain time (E S , the emission factor) is a key characteristic in constructing isoprenoid emission inventories. However, there is large variation in published E S estimates for any given species partly driven by dynamic modifications in E S due to acclimation and stress responses. Here we review additional sources of variation in E S estimates that are due to measurement and analytical techniques and calculation and averaging procedures, and demonstrate that estimations of E S critically depend on applied experimental protocols and on data processing and reporting. A great variety of experimental setups has been used in the past, contributing to study-toCorrespondence to:Ü. Niinemets (ylo.niinemets@emu.ee) study variations in E S estimates. We suggest that past experimental data should be distributed into broad quality classes depending on whether the data can or cannot be considered quantitative based on rigorous experimental standards. Apart from analytical issues, the accuracy of E S values is strongly driven by extrapolation and integration errors introduced during data processing. Additional sources of error, especially in meta-database construction, can further arise from inconsistent use of units and expression bases of E S . We propose a standardized experimental protocol for BVOC estimations and highlight basic meta-information that we strongly recommend to report with any E S measurement. We conclude that standardization of experimental and calculation protocols and critical examination of past reports is essential for development of accurate emission factor databases.

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Section: Effects Of Bvoc Buildup In the Measurement Chamber On Calculmentioning

confidence: 89%

Section: Materials Used In Gas-exchange Systemsmentioning

confidence: 99%

Estimations of isoprenoid emission capacity from enclosure studies: measurements, data processing, quality and standardized measurement protocols

Niinemets

Kühn²,

Harley³

et al. 2011

Biogeosciences

187

145

View full text Add to dashboard Cite

show abstract

“…Thus, this technique could be recommended for this task, although further improvements are necessary to resolve additional problems, for instance, when standards for calibration are not available and thus proper quantification is not possible [17]. In this context, Kolb proposed the multiple headspace-solid-phase microextraction, and Ezquerro et al [18,19], Licciardello et al [20], and Oliveira et al (unpublished results) applied it to quantify potential migrants in packaging materials by multiple-SPME-GC-MS without requiring the pure standards.…”

Section: Introductionmentioning

confidence: 99%

Analytical tools for identification of non-intentionally added substances (NIAS) coming from polyurethane adhesives in multilayer packaging materials and their migration into food simulants

Félix

Isella²,

Bosetti³

et al. 2012

Anal Bioanal Chem

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“…Existem vários processos para produção de filmes multicamadas [5][6] . Diferentes processos e tipos de resina podem afetar significativamente a estrutura química e por conseqüên-cia, as propriedades dos laminados poliméricos [7] .…”

Section: Introductionunclassified

Avaliação da aplicabilidade de técnicas MIC/FT-IR/DSC para a caracterização de filmes multicamadas

Nogueira

Dutra²,

Diniz³

et al. 2007

Polímeros

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Técnicas FT-IR de transmissão, reflexão atenuada (ATR), reflexão difusa (DRIFT), microscopia acoplada ao FT-IR (MIC/FT-IR) e detecção fotoacústica (PAS) foram utilizadas para a caracterização de filmes multicamadas. As técnicas ATR, MIC/FT-IR e PAS apresentaram os melhores resultados, provavelmente em função da possibilidade de análise somente da superfície das amostras com cristal (ATR), análise de cada camada da amostra separadamente (MIC/FT-IR) e possibilidade de variação da velocidade de obtenção do espectro (PAS). Dados de análises de microscopia ótica (MO) e calorimetria exploratória diferencial (DSC) foram usados, associados aos dados FT-IR, para a caracterização completa dos materiais.

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Direct quantitation of volatile organic compounds in packaging materials by headspace solid-phase microextraction–gas chromatography–mass spectrometry

Cited by 51 publications

References 21 publications

Estimations of isoprenoid emission capacity from enclosure studies: measurements, data processing, quality and standardized measurement protocols

Estimations of isoprenoid emission capacity from enclosure studies: measurements, data processing, quality and standardized measurement protocols

Analytical tools for identification of non-intentionally added substances (NIAS) coming from polyurethane adhesives in multilayer packaging materials and their migration into food simulants

Avaliação da aplicabilidade de técnicas MIC/FT-IR/DSC para a caracterização de filmes multicamadas

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