one hand holding an eppendorf test tube with sample and a lab technician taking liquid with a micropipet in a laboratory.

analysis arm art assay background biochemistry biology biotechnology blue chemical chemistry clothing design development employee eppendorf equipment experiment expert finger gadget glasses glove gloves hand health holding indoors iron lab laboratory light lighting limb liquid machine medical medicine micropipet nitril nitrile occupation one pcr person pipet pipette plastic plate professional rack research room sample samples science scientist taking technician technology test tips toy tube tubes white work yellow