worker chemist filling pouring test tube with liquid reagent flask Spbd. Closeup. drip liquid in a pipette with measuring numbers. concept chemistry, laboratory. pharmaceutical analysis
crime expert is researching chemical in test tube in chemistry laboratory, portrait of male scientist
A lab technician in glasses at a table dials liquid reagents from a vial into a syringe. Laboratory studies in the clinic.
Woman chemist adding chemical reagent in pure liquid at glass flask. Close up of scientist hands put lab flask on table
Chemical reaction in flask. Female scientist carrying out scientific research. Scientist woman dropping reagent in glass flask. Lab woman pouring liquid for chemical experiment in laboratory
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Medium portrait shot of young Chinese woman in white lab coat, goggles and gloves adding drops of reagent to test vial with long glass pipette, then looking at camera and smiling
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Lab testing of milk
Chemist in coverall equipment typing formula on laptop. Scientist doing lab analysis using microscope.
science, chemistry, medicine and people concept - close up of scientist with pipette, flask and beakers making research or experiment in clinical laboratory
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
Medium footage of Chinese female scientist in white coat, goggles, gloves adding drops of reagent to chemical solution in vial, holding it up, checking for reaction or residue, while conducting tests
Close-up footage of hand of anonymous male chemist in glove and white coat adding drops of chemical reagent to pink solution in test vials in rack with pipette
Lab assistant working with drug samples at pharmaceutical company
Hand and flask with liquid. Yellow fluid dripping into beaker. Mixture of dangerous reagents. Experiment in a lab.
Man employee is working with equipment and chemicals in modern pharmaceutical laboratory spbas. Male chemist pours white powder into compartment of metal facilities standing in factory workshop
Woman working with flasks in a laboratory
Close-up footage of gloved hands of unrecognizable laboratory technician filling long glass bulb pipette with pink chemical reagent, adding to clear liquid in flask, then stirring in circular motion
Close up of scientist adding solution with pipette on smoking blue fluid in test tubes. Chemist in research lab.
Tubes in a laboratory
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Zoom in selective focus shot of male scientist pouring reagent into transparent substance and examining chemical reaction in glass cylinder while conducting research in laboratory
Close-up low angle shot of gloved hands of female research scientist carefully adding drops of purple reagent in various concentration to liquid in sample tray, using pipette, during experiment
Medium close-up tilting footage of busy Chinese female laboratory worker in safety goggles, white coat, gloves adding reagent to vial then carefully pouring solution into test tube during experiment
Scientist hands working with liquid in medical lab. Close up of glassware in doctor hands at medical laboratory. Pharmacist doing medical research. Hands shaking liquid in lab flask. Biotechnology
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Close-up shot of hands of biochemical laboratory technician in gloves adding drops of chemical reagent to pink fluid in test vials with pipette from glass of blue solution
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Chemical liquid in laboratory close up. Lab petri dishes with various colorful liquids. Scientific researches concept.
Chemist hands mixed substance of red color in test tubes. Doctor Pours red Chemicals Into In Flask. Close Up
Bottles of solutions stored on shelf in laboratory. Bottles with chemical solutions of NaOH, H2so4 and HNO3. Sulfuric acid, sodium hydroxide
Medium low angle footage of Chinese female chemist carefully adding drops of reagent in different concentration to liquid in sample tray, using pipette, while working in laboratory
Colored beautiful chemical reaction in flask. Pink or red liquid dissolves in flask. Pink matter in the flask. Pink or red liquid dissolves
Russians develop chemical weapons
Doubting Asian student looks at tubes with materials sample through magnifier glass doing tests in scientific laboratory close view
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Medium side shot of African American male researcher in white lab coat studying specimen under microscope, adjusting focus, while Asian female colleague is working with reagents in background
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Researcher works with fluids in chemical laboratory
Medium vertical of Asian female researcher adding reagent to test tube, black male colleague with tablet approaching, sharing result of experiment, both discussing data
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