Suitability of different polymer bags for storage of volatile sulphur compounds relevant to breath analysis

Mochalski, Paweł; Wzorek, Beata; Śliwka, Ireneusz; Amann, Anton

doi:10.1016/j.jchromb.2008.12.003

Cited by 123 publications

(138 citation statements)

References 40 publications

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“…Significant recovery decrease over time was observed in previous studies (Koziel et al, 2004;Parker et al, 2010;Mochalski et al, 2009;Trabue et al, 2006;Keener et al, 2002b).…”

Section: Zhu Et Al / Journal Of the Air And Waste Management Associatisupporting

confidence: 52%

“…Compared with the complex background of Tedlar bags, that of metallized FEP bags is very clean. Koziel et al (2005) and Mochalski et al (2009) also reported the relatively cleaner background of the Teflon bag than that of the Tedlar bag.…”

Section: Background Impurities In New Bagsmentioning

confidence: 95%

“…Background compounds including phenol, N,N-dimethylacetamide (DMAC), acetic acid, propionic acid, and butyric acid, and other compounds were identified in Tedlar and polypropylene bags Trabue et al, 2006;Parker et al, 2003). Significant sample loss and background emission from Tedlar bags were also reported in studies on human breath constituents (Mochalski et al, 2009(Mochalski et al, , 2013Beauchamp et al, 2008). Background impurities likely result from solvents and process chemicals used during manufacturing.…”

Section: Introductionmentioning

confidence: 95%

“…Polyester aluminum bags were tested by Kim et al (2011) as a possible substitution for Tedlar bags for aromatic compounds, ketones, alcohol, and esters, and demonstrated improved performance in odorous VOC recoveries. Mochalski et al (2009) used bags made from five different polymer materials to store volatile sulfur compounds (VSCs). The highest recovery of 90% for VSCs was achieved with Flexfoil bags (SKC, Inc., Eighty Four, PA) after 24-hr storage, while Tedlar bags had the highest recovery with 6-to 8-hr storage times.…”

Section: Introductionmentioning

confidence: 99%

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Testing odorants recovery from a novel metallized fluorinated ethylene propylene gas sampling bag

Wen-da

Kozieł

Cai

et al. 2015

Journal of the Air & Waste Management Association

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Industry-standard Tedlar bags for odor sample collection from confined animal feeding operations (CAFOs) have been challenged by the evidence of volatile organic compound (VOC) losses and background interferences. Novel impermeable aluminum foil with a thin layer of fluorinated ethylene propylene (FEP) film on the surface that is in contact with a gas sample was developed to address this challenge. In this research, Tedlar and metallized FEP bags were compared for (a) recoveries of four characteristic CAFO odorous VOCs (ethyl mercaptan, butyric acid, isovaleric acid and p-cresol) after 30 min and 24 hr sample storage time and for (b) chemical background interferences. All air sampling and analyses were performed with solid-phase microextraction (SPME) followed by gas chromatography-mass spectroscopy (GC-MS). Mean target gas sample recoveries from metallized FEP bags were 25.9% and 28.0% higher than those in Tedlar bags, for 30 min and 24 hr, respectively. Metallized FEP bags demonstrated the highest p-cresol recoveries after 30-min and 24-hr storage, 96.1 ± 44.5% and 44.8 ± 10.2%, respectively, among different types of sampling bags reported in previous studies. However, a higher variability was observed for p-cresol recovery with metallized FEP bags. A 0% recovery of ethyl mercaptan was observed with Tedlar bags after 24-hr storage, whereas an 85.7 ± 7.4% recovery was achieved with metallized FEP bags. Recoveries of butyric and isovaleric acids were similar for both bag types. Two major impurities in Tedlar bags' background were identified as N,N-dimethylacetamide and phenol, while backgrounds of metallized FEP bags were significantly cleaner. Reusability of metallized FEP bags was tested. Implications: Caution is advised when using polymeric materials for storage of livestock-relevant odorous volatile organic compounds. The odorants loss with storage time confirmed that long-term storage in whole-air form is ill advised. A focused short-term odor sample containment should be biased toward the most inert material available relative to the highest impact target odorant. Metallized FEP was identified as such a material to p-cresol as the highest impact odorant from confined animal feeding operations. Metallized FEP bags have much cleaner background than commercial Tedlar bags do. Significantly higher recoveries of methyl mercaptan and p-cresol were also observed with metallized FEP bags. IntroductionIn recent decades, intensive large-scale livestock production has grown rapidly in the United States and other parts of the world. The large number of animals raised in concentrated animal feeding operations (CAFOs) can affect air quality by emissions of odor, volatile organic compounds (VOCs), NH 3 , H 2 S, greenhouse gases (GHGs), and particulate matter (PM) (National Research Council [NRC], 2003;Heber et al., 2006aHeber et al., , 2006bJacobson et al., 2008;Hoff et al., 2009). Air pollution and odor nuisance are a major challenge for livestock production (NRC, 2003;Kim et al., 2007;Parker et al., 2012;Cai et al., 20...

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“…Significant recovery decrease over time was observed in previous studies (Koziel et al, 2004;Parker et al, 2010;Mochalski et al, 2009;Trabue et al, 2006;Keener et al, 2002b).…”

Section: Zhu Et Al / Journal Of the Air And Waste Management Associatisupporting

confidence: 52%

Section: Background Impurities In New Bagsmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Testing odorants recovery from a novel metallized fluorinated ethylene propylene gas sampling bag

Wen-da

Kozieł

Cai

et al. 2015

Journal of the Air & Waste Management Association

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“…Before collecting exhaled breath, all bags were thoroughly cleaned to remove residual contaminants by flushing with high purity nitrogen gas allowing the re-use of the Tedlar ® bags. The bags were transported to the laboratory and the analysis was performed to a maximum of 6 h as recommended by Mochalski et al [22]. On average, the analysis was performed 2-3 h after sampling.…”

Section: Breath Samplingmentioning

confidence: 99%

Profiling allergic asthma volatile metabolic patterns using a headspace-solid phase microextraction/gas chromatography based methodology

Caldeira

Barros

Bilelo³

et al. 2011

Journal of Chromatography A

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a b s t r a c tAllergic asthma represents an important public health issue with significant growth over the years, especially in the paediatric population. Exhaled breath is a non-invasive, easily performed and rapid method for obtaining samples from the lower respiratory tract. In the present manuscript, the metabolic volatile profiles of allergic asthma and control children were evaluated by headspace solid-phase microextraction combined with gas chromatography-quadrupole mass spectrometry (HS-SPME/GC-qMS). The lack of studies in breath of allergic asthmatic children by HS-SPME led to the development of an experimental design to optimize SPME parameters. To fulfil this objective, three important HS-SPME experimental parameters that influence the extraction efficiency, namely fibre coating, temperature and time extractions were considered. The selected conditions that promoted higher extraction efficiency corresponding to the higher GC peak areas and number of compounds were: DVB/CAR/PDMS coating fibre, 22 • C and 60 min as the extraction temperature and time, respectively. The suitability of two containers, 1 L Tedlar ® bags and BIOVOC ® , for breath collection and intra-individual variability were also investigated. The developed methodology was then applied to the analysis of children exhaled breath with allergic asthma (35), from which 13 had also allergic rhinitis, and healthy control children (15), allowing to identify 44 volatiles distributed over the chemical families of alkanes (linear and ramified) ketones, aromatic hydrocarbons, aldehydes, acids, among others. Multivariate studies were performed by Partial Least Squares-Discriminant Analysis (PLS-DA) using a set of 28 selected metabolites and discrimination between allergic asthma and control children was attained with a classification rate of 88%. The allergic asthma paediatric population was characterized mainly by the compounds linked to oxidative stress, such as alkanes and aldehydes. Furthermore, more detailed information was achieved combining the volatile metabolic data, suggested by PLS-DA model, and clinical data.

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Breath Analysis: Analytical Methodologies and Clinical Applications

Ceccarini

Francesco

Fuoco

et al. 2012

Analytical Techniques for Clinical Chemistry

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Suitability of different polymer bags for storage of volatile sulphur compounds relevant to breath analysis

Cited by 123 publications

References 40 publications

Testing odorants recovery from a novel metallized fluorinated ethylene propylene gas sampling bag

Testing odorants recovery from a novel metallized fluorinated ethylene propylene gas sampling bag

Profiling allergic asthma volatile metabolic patterns using a headspace-solid phase microextraction/gas chromatography based methodology

Breath Analysis: Analytical Methodologies and Clinical Applications

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