Medium shot of middle-aged female chemist working in biochemical laboratory - stirring green liquid in flask, picking it up with pipette, carefully dropping into Petri dish and observing reaction
Dropping of blue liquid in test tube with glass dropper
scientist is experimenting in chemical laboratory with dangerous reagents, dropping liquid by pipet in plate
Slowmo close-up of unrecognizable scientist dropping liquid substance on petri dish with seedling sample using pipette
Scientist conducting research on medicine to fight coronavirus.
Chemist pouring liquids in test tubes on table with pipette. Researcher dropping chemical liquid in test tubes. Close up of scientist hands working with chemical reagents at research laboratory
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Waist-up shot of young Chinese female laboratory employee dropping pink chemical reagent into flask with clear solution and stirring in circular motion, while performing diagnostic probe
