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"test tube"

lab tech with test tube

Scientist testing in laboratory for analysis or researching

Close-up footage of hands of anonymous technician in gloves pouring liquid from pipette into test tube, while performing tests in diagnostic laboratory

Close-up of female Asian scientist in safety mask and glasses looking at test tube with water and tiny piece of artificial cultured meat

dolly right doctor looking at test tube

Scientist testing in laboratory for analysis or researching.

male doctor work in laboratory, developing a vaccine. Coronavirus, COVID-19, 2019-ncov medicines research concept. Use Microscope

Close mid view of female scientist using dropper and test tubes for conducting experiment in laboratory

Woman agronomist examines sunflower on the background of the sunset using a test tube.

Medium close-up of busy Caucasian female laboratory researcher in protective goggles studying test tube with human blood sample next to microscope and observing its properties

Interaction between solutions of barium nitrate and sulfuric acid. Formation of a white precipitate of barium sulphate. Close-up

Female looking at computer screen and test tube in laboratory

Blood sample in micro tubes

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In a school science lab, a young African American girl smiles

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Portrait of female forensic technician in medical coat and gloves examining test tube containing blood and then posing for camera at work in crime lab

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Medical science lab: Female chemist in white coat takes test tubes for scientific research from the shelf with laboratory equipment while her African colleague is working in the background.

Over the shoulder view of person in protective gloves holding covid blood test tube

Doctor in gloves shakes blood test tube for analysis of chinese coronavirus. Scientist technician stirs sterile vacutainer in laboratory. Covid virus epidemic vaccine development, biotechnology.

Scientist using a pipette to put solution in flask. Stock footage. Concept of medicine and chemistry.

A nurse puts a barcode on a blood test tube.

Pipette drop the sample into test tube

African scientist male doctor conducting biochemical experiments, research two test tubes with red liquid, working in chemical lab

In the laboratory, a woman in a Bathrobe and gloves sets samples of human cells in test tubes in a centrifuge for unwinding and separating excess layers of cells

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Caucasian schoolmaster in safety and lab coat mixing liquids in test tubes for showing pupils chemical reactions during lesson. Scientific

Work in a medical laboratory. A man and a woman are talking using a laptop sitting at a table with a microscope. A woman sets up a blood

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Chemistry teacher in protective lab coat and teaching group of elementary school students at laboratory. Pupils examining reaction of mixing

Doctor shows a positive and negative results of test for coronavirus

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Medical science laboratory: Female chemist in white coat takes test tubes for chemical experiment from shelf with lab African American

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Advanced medical research laboratory: Close up of chemist or scientist wearing gloves putting test tubes with blue liquid in rack.

Portrait of medical scientist looking at chemical reactions in test tubes while working on vaccine in laboratory

Versatile laboratory glassware with blue liquid inside on a light background. Many different kinds of chemistry containers stacked

Medium shot of two chemists wearing protective clothing examining test tubes with liquid samples and making notes, working together in modern lab

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Cosmetics liquid dropper with skin care concept, 3d rendering.

Chemical reaction in flask at chemistry lab. Scientist conducting chemical experiment in chemistry laboratory

Male scientist experimenting in laboratory 4k

Test tubes with samples in a rack 4k

Students looking at person adding chemical agent to test tube

The scientific man does the test with chemical liquids. He uses a dropper pouring in test tube

Scientist placing samples under a microscope for inspection

Extreme close up of unrecognizable biology researcher dropping water into test tube with genetically modified sprout

Doctor hands taking sample vaccine in test tube working modern laboratory close up. Serious scientist in looking experimental drugs

Glassware equipment in laboratory for science or chemical experiments. Action. Flasks filled with liquid substances at the lab.

Scientist injecting chemicals into test tubes. Test tube of colored liquid on the lab table in the background of the glass flasks. poured from glass pipette into test tube illuminated with blue light

Young Asian doctor in robe analyzes blood sample in hospital lab

Scientist put test tubes with samples analysis on a rack. Close-up. 4K.

Glass flasks in medical laboratory. Closeup. Transparent chemical flasks. Laboratory glassware. Equipment for laboratory tests. Empty glass flasks in laboratory. Medical flasks

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dolly left blood test paperwork to test tube 4k

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over shoulder of doctor writing results of blood test 4k