In a laboratory, a scientist with a pipette analyzes a colored liquid. Video can be used in laboratory, medicine, research, science, chemical, equipment, liquid, chemistry, experiment, lab, medical, test, biology, glass, health, scientific, scientist, technology, drop, dropper, pharmaceutical, pipette, solution, transparent, tube, background, biotechnology, discovery, industry, sample, drip, instrument, medication, microbiology, pharmacology, pour, water, analysis, biochemistry, bottle, development, forensics, glassware, preparation, reagents, studying, toxic, blue, closeup, dna