The chemistry of beer flavor instability remains shrouded in mystery, despite decades of
extensive research. It is, however, certain that aldehydes play a crucial role because their …

The carbonyl function of volatile aldehydes is discussed from methodological point of view
(reactivity and analysis method). From this presentation, an inventory of volatile aldehydes …

Hydrodistillation (HD), simultaneous distillation solvent extraction (SDE), microwave-
assisted hydrodistillation (MWHD), and supercritical fluid (CO2) extraction (SFE) were …

Solid-phase microextraction (SPME) is a relatively new sampling technique wherein sample
extraction and pre-concentration could be achieved in a single step. The handling of an …

During the last decade, solid-phase microextraction (SPME) has gained widespread
acceptance for analyte matrix separation and preconcentration. Relatively few data are …

Solid‐phase microextraction (SPME) is a modern, solvent‐free sample preparation
technique, commonly used in trace analysis. This technique has been developed to …

Poetry is alive in our culture, but in its own world: Never have there been so many poets and
poetry readings, books, journals, and online sites. Poetry has certainly seemed threatened …

The beginning of green chemistry is frequently considered as a response to the need to
reduce the damage of the environment by man-made materials and the processes used to …

In this review a new approach to the food aroma analysis using various instrumental
techniques is described. In the last decade extensive studies have been performed …

The paper presents recent trends in solventless sample preparation techniques for
environmental analysis. First, a general classification of solventless methods is given. Next …