Het gevoel van de vooruitgang. Blij mannelijke persoon houden glimlach op zijn gezicht, glas in de linkerhand houden terwijl het gieten neer wat vloeistof - Stockfoto’s en -afbeeldingen

Keep concentration. Focused picture on male hands that holding pipette and piece of glass while going to do experiment

Open eyes wide. Very attentive scientist wearing blue rubber gloves and looking at test glass while taking liquid

Viorolog researcher examining a sample from test tube working in a modern equipped laboratory.

Young scientist working with fluid sample, closeup. Laboratory analysis

Careful measurement. Selective focus of a small drop of blue liquid being used for biological analysis

Controlled experiment. Selective focus on hands of a male scientist holding a microscope slide and sampling aa navy blue chemical substance.

Keeping in a right proportion. Scaled up look on female lab worker holding a test tube and using a pipette while pouring blue chemical liquid during an experiment.

Sterile instrument. Positive delighted practitioner keeping smile on his face and holding test tube while taking sample of blue liquid

Keep silent. Attentive bearded man wrinkling his forehead and pressing lips while looking forward at pipette

Be careful. Serious scientist covering his face while looking at glass tube with chemical reagent and taking some drops

Accuracy of analysis. Very attentive practitioner sitting at his workplace and keeping medicine dropper in left hand while going to do analysis

Modern agro engineering. Nice smart man pointing at the test tube while working in the agro engineering laboratory