Chimiste barbu dans des lunettes avec des réactifs dans des tubes et comprimé en laboratoire - Photo & image de stock

Bearded chemist in goggles with reagents in tubes and tablet in laboratory

Concentrated bearded chemist in goggles with reagents in tubes in laboratory

Professional chemist. Smart nice male researcher wearing a mask and protective glasses while conducting chemical experiment in the lab

Bearded chemist in goggles with reagents in tubes and tablet in laboratory

Important research. Adult smart concentrated explorer sitting in the lab in the environment of vials conducting the research and working with the test tubes.

Scientist working at the laboratory

Adorable little girl in goggles with reagents in tubes in laboratory

Smiling bearded scientist in protective goggles and gloves holding test tubes with reagents and making experiment

Smiling middle aged scientist in protective eyewear working with microscope and colleague standing behind

Portrait of focused scientist using microscope while working with reagents in lab

Smiling chemist in white coat holding test tubes with reagents and making experiment

Concentrated scientist using microscope while colleague holding reagent in tube in lab

Scientist in white coat and protective gloves looking at camera with colleague near by

Pensive scientist in lab coat looking at tube at laboratory