Wetenschapper gieten chemische stof in reageerbuis, observeren reactie. Close-up zicht - Stockvideo’s

Extreme close-up of nurse hands filling flask with blood from syringe and closing sample. Unrecognizable doctor or lab assistant in uniform and gloves working in laboratory on Covid-19 pandemic

The alchemist, holds the flasks, tests the test tubes with a test of different compositions, in a white coat, a respirator, goggles, rubber white gloves, a green background.

Blood test - drop drowns in reagent.

In a futuristic laboratory, a scientist with a pipette analyzes a colored liquid to extract the DNA and molecules in the test tubes.

Young man studying liquid sample contained in a test-tube.

Young doctor in mask examines a pill. Man opens the tablet

Young man scientist in chemistry bright lab.