CAR/PDMS

Headspace solid-phase microextraction for the determination of volatile sulfur compounds in odorous hyper-eutrophic freshwater lakes using gas chromatography with flame photometric detection

ty10086 提交于 周四, 08/26/2021 - 13:38
Abstract(#br)A simple and efficient method based on headspace solid-phase microextraction (HS-SPME) followed by gas chromatography coupled to flame photometric detection was developed for the simultaneous determination of five volatile sulfur compounds (VSCs; hydrogen sulfide (H 2 S), methanethiol (MeSH), dimethyl sulfide (DMS), dimethyl disulfide (DMDS) and dimethyl trisulfide (DMTS)) in hyper-eutrophic freshwater lakes suffering from black water agglomerate.

Rapid detection of sepsis in rats through volatile organic compounds in breath.

ty10086 提交于 周四, 08/26/2021 - 12:58
Sepsis is one of the main causes of death in adult intensive care units. The major drawbacks of the different methods used for its diagnosis and monitoring are their inability to provide fast responses and unsuitability for bedside use. In this study, performed using a rat sepsis model, we evaluate breath analysis with Ion Mobility Spectrometry (IMS) as a fast, portable and non-invasive strategy.;This study was carried out on 20 Sprague-Dawley rats. Ten rats were injected with lipopolysaccharide from Escherichia coli and ten rats were IP injected with regular saline.