Onderzoeker reageerbuisjes controleren. man draagt beschermende bril - Stockfoto’s en -afbeeldingen

Investigator checking test tubes. Man wears protective goggles

Man scientist holding a test tube with liquid

Investigator checking test tubes. Man wears protective goggles

Young male scientist making experiments in laboratory

Portrait of a chemist holding a tube with liquid. Investigator checking test tubes. Man wears protective goggles

Young male scientist making experiments in laboratory

Medical or scientific researcher or doctor using looking at a solution in a laboratory

Medical or scientific researcher or doctor using looking at a solution in a laboratory

Medical or scientific researcher or doctor using looking at a solution in a laboratory

Medical or scientific researcher or doctor using looking at a solution in a laboratory

Medical or scientific researcher or doctor using looking at a solution in a laboratory

Medical or scientific researcher or doctor using looking at a solution in a laboratory

Medical researcher using looking at a solution in a laboratory

Medical or scientific researcher or doctor using looking at a solution in a laboratory

Medical or scientific researcher or doctor using looking at a solution in a laboratory

Young blond woman looking into a conical flask of blue coloured solution (liquid).