Medium Vertical Of Young Chinese Postgraduate Student Looking At Purple Solution In Retort On Stand In Laboratory Checking For Reaction Or Residue Writing In Checklist On ClipboardÂ
Medium shot of young Chinese female researcher standing at table with retort on stand in laboratory, looking at purple solution, observing chemical reaction and filling out checklist on clipboard
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Medium vertical of Chinese female chemist in white coat, goggles, gloves adding reagent to chemical solution in vial, holding it up, checking for reaction or residue, while performing assay
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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
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Medium vertical shot of young Chinese female diagnostic laboratory worker in goggles, white coat and gloves holding up flask with solution, stirring, checking for residue, while performing tests
Woman lab assistant is working with chemical solution at table in pharmaceutical laboratory spbd. Female chemist is watching reaction of colored liquid in glass flask during work day in modern company
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Close-up rear shot of multiethnic male and female chemists standing in laboratory, examining flask with purple permanganate solution, discussing colour, checking for residue
Laboratory assistant scientist laboratory tests chemicals for reactions in flask
A women look at the chemical reaction in medical laboratory
Clinical testing. Lab experiment in glass flask. Pouring blue reagent in pure solution. Closeup of chemical reaction in lab flask. Laboratory research. Lab research in lab flask. Chemical analysis
Chemical flasks and a mug with a solution on a table in the laboratory
Woman scientist looking through microscope in laboratory wearing protection equipment. Scientist taking a flask with reactive blue solution.
Laboratory assistant scientist laboratory tests chemicals for reactions in flask. Close up