on the day of filming, the petergovs were covered with snow, we arrived at the institute of chemistry of st. petersburg university, where professor irina works. timothy immediately noticed the contrast. there's a snowstorm outside, a winter garden inside. this is such an oasis, a point of attraction for both students and teachers who develop the ideas of green analytical chemistry. green analytical chemistry, what is this direction and what are its main features? green analytical chemistry, it is aimed at protecting our the environment, including the analyst performing chemical analysis. use the minimum amount of reagents to create as little waste as possible. automate methods, use as many natural components as possible, here even in the laboratory it smells of menthol, employees say they get sick less often because of this, but the main thing is that they are based on efthectic solvents, a mixture of two or more components that melt at a minimum temperature and help to isolate substances of interest to researchers from food samples, fuel, building materials, soil and even air, that i