Laboratory tests with test tube and small pipette filled with black liquid, water contamination, experiment. Black liquid in a test tube
Close up of scientist pouring blue acid into test tube. Close up of a pipette pouring liquid into a test tube. Performing a liquid at scientific laboratory.
Skilled lab technician conducts tests with blue liquid in science lab (slow motion)
A young laboratory technician conducts tests in a scientific lab. Slow motion.
Senior scientist in protective glasses and gloves using pipette for pouring blue liquid substance into test tubes while doing microbiology test in laboratory
African American male scientist in white coat and gloves pouring blue liquid substance into test tube with pipette during laboratory experiment
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Close-up shot of hands of anonymous female laboratory employee in gloves adding pink chemical solution from tube to clear liquid in vial while performing diagnostic test on biochemical probe
tubes tests laboratory medical
Female chemist in protective face mask, glasses and gloves pouring blue liquid into test tubes with pipette while doing scientific experiment in laboratory
Female chemical scientist in a modern laboratory pouring reagent with pipette from test tubes with blue liquid. Scientist in modern laboratory.
Senior chemist in sterile gloves and protective glasses holding petri dish and pouring blue liquid chemical into test tubes with pipette while working in laboratory
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