Ritratto di una coppia di scienziati anziani sorridenti che guardano le provette in laboratorio - Foto e immagini stock

Senior chemists looking at test tube and writing notes in laboratory

Man scientist looking at smiling colleague holding green plant in test tube

Senior couple of scientists in white coats looking at chemical formula

Senior couple of scientists working with test tubes in laboratory

Smiling senior scientists working with digital tablet in lab

Smiling senior chemists working with test tubes in laboratory

Smiling senior scientists working with digital tablet and microscope

Senior couple of scientists working with digital tablet in lab

Professional chemists making experiment with reagents in test tubes

Young professional chemists in protective glasses and gloves making experiment in lab

Two young scientists at work looking at chemical sample in laboratory

Young female scientist looking at chemical samples in test tubes

Young female scientist looking at chemical sample in test tube with magnifier

Portrait of young professional scientists in protective eyewear looking at camera

Young professional chemists making experiment with reagent in flask

Young female scientist looking at chemical sample in test tube