Hombre científico concentrado en gafas protectoras analizando tubos de ensayo en laboratorio - Foto e imágenes de stock

Selective focus on a drop of a blue liquid substance, dripping from a glass laboratory pipette and test tube on a tripod, over blurred scientist conducting experiment in a clinical research laboratory

Young scientists are experimenting with science at Asian scientist holding a test tube in a laboratory. Scientists are working in science labs.

Woman scientist working in laboratory

A gloved scientist pours blue acid into a test tube with clear liquid. Scientific research in the chemical industry The doctor examines the analysis in a test tube with a microscope.

Closeup of unrecognizable woman taking test tube with colored liquid while working on research in medical laboratory, copy space

Scientist holds eppendorf tube and pipette. Focus on test tube