Técnico de laboratorio que sostiene un tubo de ensayo con muestra en el laboratorio médico o científico. Macro tiro - Foto e imágenes de stock

A male chemist holds test tube of glass in his hand overflows a liquid solution of potassium permanganate conducts an analysis reaction takes various versions of reagents using chemical manufacturing.

Closeup of a female scientist in a laboratory working on experiment with CBD oil extracted from a marijuana plant. Titration of the CBD oil in a glass tube.

View of stethoscope with a digital thermometer and hands with gloves holding a plastic container and a graduated glass pipette with out of focus test tubes in the back. vaccine research concept.

Asian scientific researcher working in laboratory holds test tube in hand a liquid solution analysis using chemical manufacturing

Filling the microcuvette with yellow solution by automatic pipette in chemical laboratory by scientist.

Cell culture at the medicine, medical and cell culture laboratory

Medical or scientific researcher or man doctor looking at a test tube of clear solution in a laboratory

Male medical or scientific laboratory researcher performs tests with blue liquid. Close up