Patients were asked to inflate a 3-L Tedlar bag (SKC Ltd., Dorset, UK). Within an hour of collection, its contents were transferred into carbon-filled stainless-steel desorption tubes (Markes International, Llantrisant Business Park, UK). In each study center, 1 room was assigned to be used for breath collection purposes. Breath samples were analyzed by thermal desorption-gas chromatography coupled with time-of-flight mass spectrometry (TD-GC-MS), as described previously (27 (link)).
3 l tedlar bag
Manufactured by SKC
Sourced in United Kingdom
The 3-L Tedlar bag is a versatile laboratory equipment used for the collection and storage of gas samples. It is made of Tedlar, a highly inert polymer material, which ensures the integrity of the samples. The bag has a capacity of 3 liters and is designed to provide a reliable and contamination-free environment for gas sampling and analysis.
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Lab products found in correlation
2 protocols using 3 l tedlar bag
1
Breath Collection and Analysis by TD-GC-MS
2
Breath Sampling for Volatile Analysis
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Details on the sample collection and storage method have been previously described.8 The participants were asked to breathe into a 3L Tedlar® bag (SKC Inc. 231-03). The exhaled breath (3L) in the Tedlar® bag was immediately pumped onto an adsorbent thermal desorption (TD) tube (Tenax® TA and Carbograph-1TD; Markes International, C2AAXX-5032) which was capped immediately with brass storage caps (Markes International, C-CF010) A 0.5L environmental air sample was collected at a flow of 500 mL min−1 directly onto a TD tube using an ESCORT ELF® (Zefon International, 805558) pump adjacent to the participants.
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