Tubo de ensayo con una muestra sobre fondo azul claro - Foto e imágenes de stock

Closeup of a pipette dropping a sample into a test tube on light blue background

Test tube with green sample on light blue background

Science laboratory test tubes, laboratory equipment

Science laboratory test tubes , laboratory equipment

Test tube with red sample on light blue background

Pipette adding fluid to the one of test-tubes on blue background

Pipette adding yellow fluid to one of several test-tubes with flasks on light background

Test-tubes with blue liquid on blue background

Test-tubes on blue background

Blue Test tubes close-up

Close up of a pipette dropping a sample into a test tube on blue background