Abstract The use of solvents and other volatile organic chemicals is a significant source Non-Methane Volatile Organic Compounds (NMVOCs) emissions. Due to the wide spectrum applications numerous locations where these occur, estimation NMVOCs emissions can be challenging. aim this paper present methodological framework used in Greece for It covers processes products that several industries, as ...

In this paper, a headspace solid-phase microextraction (HS-SPME) method was applied to analyse the volatile compounds in a traditional Chinese medicine (TCM), Rhioxma Curcumae Aeruginosae. SPME parameters such as fibers, extraction temperature, extraction time and desorption time were investigated. Thirty-five volatile compounds were separated and identified. Relative standard deviations (RSDs)...

This paper considers the stability of thin liquid layers of binary mixtures of a volatile (solvent) species and a non-volatile (polymer) species. Evaporation leads to a depletion of the solvent near the liquid surface. If surface tension increases for lower solvent concentrations, sufficiently strong compositional gradients can lead to Bénard-Marangoni-type convection that is similar to the kin...

Volatile organic compounds are of great importance for communication within biological systems. For the experimental investigation functions volatiles, methods manipulation needed. Based on scent-release from pheromone research, we describe a simple and cheap method scent using silicone rubber (i.e. septum). applied to septum by soaking septa 1 h in solvent/volatile solution. After removal solu...

When a polymer solution with volatile solvent is exposed to open air, an elastic layer (called a skin) is often formed at the surface of the solution due to evaporation of the solvent. After such a skin is formed, further extraction of the solvent from the solution caused by evaporation has generally been considered to reduce the pressure in the solution. We have found that, in PMMA/acetone dro...

muscle twitches and the increase in the frequency and amplitude of individual eye movements. While exhaustive observations of these phenomena were not made in this study, it was evident that the intensification of twitching and ocular motility seen in the controls was not present in the convulsed cats. On the other hand, the EOG components of the recordings on the 1st recovery day from the conv...

The use of solvents and other volatile organic chemicals is a significant source Non-Methane Volatile Organic Compounds (NMVOCs) emissions. Due to the wide spectrum applications numerous locations where these occur, estimation NMVOCs emissions can be challenging. aim this paper present methodological framework used in Greece for It covers processes products that several industries, as well hous...

Ascomata of two truffle species, Tuber borchii and T. asa-foetida, both naturally growing in woodlands of the Basilicata region (southern Italy), were identified on the basis of ascospore morphology and compared under a volatile organic compound profile to determine the particular volatile organic compounds that characterize each taxon. Solid-phase microextraction-gas chromatography-mass spectr...