Vědecká expertiza. Vrchní pohled na zkumavku, která se bere ze stojanu pro analýzu - Stock fotografie a obrázky

Scientific tests. Close up of a scientist hand above test tubes while taking a sample

Test tubes in clinic, pharmacy and medical research laboratory and new chemical substances.

Cropped view of scientist holding test tube with blue liquid on blurred background

For the analysis. Close up of a test sample being taken from a test tube for professional biological analysis

Chemical samples. Close up of a rack with test tubes being in hands of a smart professional scientist

Scientist with equipment holding tools during scientific experiment science concept

Medical research. Selective focus of a pipette being in the laboratory workers hands while doing the research

Biological research. Close up of test samples of new vaccine being used in biological research

Chemical lab. Top view of test tubes with special samples standing in the test tube rack

Let me think. Competent medical worker sitting at her workplace while doing chemical research

At the medical lab. Close up of test tubes standing in the special rack while being used for medical analysis

Controlled experiment. Close up of a researcher in gloves holding a pipette while pouring a drop of a chemical liquid in one of the test tubes.

Cropped photo of a virologist removing a test tube with a biohazard sign out of the rack

Pink liquid. Close up of female hands being in protective gloves while working with reagents