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New article published on VOC releases from respiratory medical devices

Friday, 25 August 2017 at 3:17:PM

Our application chemists are always busy doing interesting things, and over the last couple of months we've been investigating emissions of volatile chemicals from respiratory medical devices.

The new work is very timely because it was only in March that the new ISO 18562 standard was released, which lays out guidance on assessing these widely-used devices for emissions of chemicals.

The protocol we used involves passing the air stream through the medical device and onto a sorbent-packed tube, followed by automated analysis by well-established and reliable TD–GC–MS protocols. We compared emissions from two sets of face-mask supply tubing and three nasal cannulas, and found that they all emitted VOCs, with emission levels being relatively high in the first 24 hours of use.

To give you an idea of the levels of VOCs we found, below are chromatograms showing emissions from the five devices we sampled. We identified over 100 compounds across the five samples, as well as a substantial hydrocarbon/oil-like response.

If you'd like to find out more about our results, please click here to download the full paper.

Gareth Roberts

Markes International Ltd
Gwaun Elai Medi-Science Campus
CF72 8XL, UK
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