Young female laboratory technician examining a conical glass Erlenmeyer flask filled with a green liquid solution while conducting chemical
Chemical reaction in flask. Closeup. Shaking liquid in flask. Laboratory glassware. Laboratory equipment. Close up. Laboratory research. Scientific experiment. Chemical test in a glass flask
Glass flask with liquid in scientist hands. Medical research in laboratory. Male doctor analyzing chemical reagent in flask. Clinician examining liquid at chemical flask. Lab worker looking at liquid
Male researcher carrying out scientific research in a lab. Flasks with liquids in a lab. Liquid in the flask changes color
Male researcher carrying out scientific research in a lab. Flasks with liquids in a lab. Liquid in the flask changes color