Investigador masculino sosteniendo frasco con líquido azul en el laboratorio - Foto e imagen de stock

Scientist holding small erlenmeyer flask up to the light

Man checking a liquid through a magnifying glass

Male researcher holding flasks with blue liquids

Middle-aged male scientist examining liquid in glass flask

Scientists working in laboratory

Young chemist makes chemical test

Scientist looking at test tube through a magnifying glass

Glass laboratory chemical test tubes with blue liquidman wear

Scientist checking a solution in conical flask

Research worker doing experiments with chemical liquid at laboratory

Investigator checking test tubes portrait of male scientist

Man in the lab testing new cleaning solution

Measurement of sugar content in lab

Senior professor male researcher tests a chemical liquid tubes

Mature worker using a pipette

Male scientist examining red liquid in glass flask

Young male scientist doing experiments in laboratory

A young man writing notes while looking at flask