crime expert is researching chemical in test tube in chemistry laboratory, portrait of male scientist
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
Close-up vertical of hands of unrecognizable laboratory technician in gloves adding pink chemical reagent from tube to liquid in vial while performing in vitro diagnostic assay on biochemical probe
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
Scientist hand warming tweezers. Science laboratory research. Research laboratory experiment. Chemical experiment with candle flame. Sterilize equipment before experiment
Close-up no people shot of cell specimen on glass slide under microscope, and tip of pipette adding drops of nutritious substrate to sample, during biochemistry study in laboratory
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
Researcher's Gloved Hand Dripping Liquid on Soil with Growing Seedlings
Woman chemist adding chemical reagent in pure liquid at glass flask. Close up of scientist hands put lab flask on table
Woman researcher in lab. Research scientist working in research laboratory. Female researcher analyzing chemical liquid in laboratory glassware. Laboratory research concept. Researcher in laboratory
Russians develop chemical weapons
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
Medical researcher in medical research lab. Clinical research. Medical lab technician working in chemical laboratory. Lab doctor writing test result. Medical scientist working at the lab
A canister with a dangerous liquid at the plant
A lab technician in glasses at a table dials liquid reagents from a vial into a syringe. Laboratory studies in the clinic.
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
Woman scientist looking and holding a smoking blue fluid in a test tube. Team of scientist working in the background.
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
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
Pipette adding fluid to one of several test tubes
Chemist mixing reagents and checking pH
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 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
shot of equipment for chemical experiments with liquids Spbd. medical tools, flasks, bottles, beaker and bottles. concept pharmaceutical container with transparent reagent in the laboratory
Close-up of Caucasian female scientist in goggles, gloves adding drops of nutritional liquid to strand of green algae in test tube, while performing laboratory experiment in biology
Young employee conducting experiments in scientific laboratory with colored liquid and crystals
Laboratory technician mixes the reagent with liquid in flasks. Research of medicinal properties of plants. Natural cosmetics production
Lab testing of milk
Adding purple powder into flask with green solution close-up, making a mixture. Modern laboratory concept. Chemistry reaction and experiments, chemical researching.
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
Full high angle shot of Asian female employee of research chemical laboratory working on new synthetic compounds - typing on laptop, then walking over to flasks with liquids and adding reagent
Close-up shot of hands of anonymous male laboratory technician in gloves and white coat holding glass flask and adding drops of chemical reagent to pink liquid in test vials with pipette
Lab assistant with goggles drips blood into test tube with reagent in laboratory slow motion. Probe lens shot of medical examining extreme closeup
A light chemical laboratory with glass bottles
Scientist dropping the reagent into test tube for reaction testing in chemical laboratory
Chemical experience on black background, Fluorescent chemical reaction in flask
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 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
Woman working with flask 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
Researcher works with fluids in chemical laboratory
Macro shot of lab glassware with blood sample. Red chemical reagent flowing in water. Medical blood experiment. Coronavirus vaccine research in laboratory. Chemical analysis of blood
Chemist takes material piece covered with white crystals with tongs during researching in laboratory of pharmaceutical plant closeup
Asian woman scientist with protective goggles drips catalyzer into test tube with liquid in clinic slow motion. Probe lens shot of vaccine closeup
Forceps put substance into equipment. Stock footage. Chemist puts substance into equipment with forceps. Laboratory chemical and experiments
Full high angle CCTV camera shot of Asian female employee of research laboratory working alone - typing on laptop, then walking over to table and handling chemical liquids and reagents
Female scientist in protection gear using a pipette to take a sample of smoking blue fluid. Test tubes with blue solution.