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Pouring out mercury from a bottle to a test tube.
young woman holding in her hands without her face showing performing her experiment in the science laboratory
heating a chemical sample in a furnace in a research scientific laboratory. High quality photo
environmentalist use a chemical flask to collect the samples of toxic water for testing and check with quality of water from industrial
Pharmacist, scientist developing new medicines, medicaments, pharmacy, chemistry
The young adult male laboratory technician, wearing safety glasses, carefully places a beaker of liquid on a hot plate as part of his experiment.
Biology laboratory with ventilation hood.
An institution employee handling bottles with chemicals in a sterile environment of the laboratory. Chemistry, chemicals, lab
Contemporary scientist analyzing toxic liquids in laboratory.Confident chemist wearing coverall and respirator studying test tube with toxic liquid, interior of laboratory on background
Female science teacher preparing an experiment in laboratory classroom. She is in her thirties and is from middle-east. This is part of a series promoting diversity and equity in STEM. Horizontal waist up indoors shot with copy space. Focus on the preparation. This was taken in Montreal, Quebec, Canada.
Checking the condition of rivers or natural lakes. Water test for chemicals, bacteria, harmful substances, radiation. Collection of material in a test tube for further research. Water sample.
Testing the quality of water in the industrial estate's drainage sources by biologists using experimental kits.
Scientist hands researcher working in laboratory and test tube crude oil.
Technician's hand with green protective glove holding test tube with clear liquid and using universal indicator paper to measure pH of the solution by dipping the pH paper into a solution and observing the change in color of the paper in chemical laboratory.
The doctor takes a test tube with liquid, close-up. Work in a chemical laboratory. Laboratory analysis
Close-up of female biologist's hands adding reagent in water sample with pipette in laboratory.
Unrecognizable person in a military laboratory
Eco laboratory microbiology. Sample in a Microscope and comparing a plant or herb in test tube or glassware. Natural product and organic cosmetic health care.
Female Scientists wearing white Chemical protective and PPE with water analysis mobile laboratory equipment check toxic wastewater from industrial
Man taking water sample with test tube. Checking level of contamination. Wearing white protective clothes and gloves.
A hand of scientists arrange vials of samples in order before analysis with Fourier Transform Infrared Spectroscopy FTIR Instrument. Samples are analyzed to identify the chemical identity.
A closeup shot of the scientist doing chemical reactions and testing theories in the lab
Side view of blonde woman in late 50s wearing white lab coat and purple gloves reaching for amber glass bottle on lab station shelf.
Pouring chemicals for an analysis in a beaker, showcasing a typical process in a modern scientific laboratory
A woman is doing a lab test
A beaker of yellow fluid held by a scientist hand, prepare to pour into a petri dish, which displayed on the table next to a boiling flask, erlenmeyer flask and glass bottle. Copy space for text
Analysis of Dissolved Oxygen(OD),BOD and Alkalinity in Laboratory.
Environment Scientist examining water and collecting water samples
Free Images: "bestof:EPA GULF BREEZE LABORATORY, CHEMISTRY LAB. THE CHEMIST IS TESTING WATER SAMPLES FOR PESTICIDES - NARA - 546277.tif Scope and content General notes 546277 Local"
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