New Applications and Analysis of (E)-Azastilbenes in Environmental Samples.

The paper collates and summarizes information on stilbene derivatives, i.e. (E)-azastilbenes, taking into account the new possibilities of their applications, inter alia, in the natural environment. (E)-azastilbenes are biologically active, which is of great importance to humans and the whole ecosystem. As evidenced by a number of studies, they show fungistatic, fungitoxic and, depending on the concentration, estrogenic properties. Due to their properties, (E)-azastilbenes are still of great interest to researchers, who have high hopes for their pharmacological use or the possibility of using them as antiseptics, disinfectants, or preservatives in various products, including the environmental ones. Because of the difficulties with their determination, the study assumes optimal conditions of (E)-azastilbenes extraction from environmental samples and the technique of isotachophoresis is employed for the first time in this type of analysis. The highest recovery values ranging from 83 to 97% were obtained on the aryl extraction columns. The range of linearity of the developed method on the naphthylpropyl column ranged from 5 to 300 µg/mL.