Scientist placing a red liquid sample with micro pipette into a test tubes.
Scientist placing a red liquid sample with micro pipette into a test tubes.
Scientists use sample pipettes for test tubes. For scientific water research
Scientists use sample pipettes for test tubes. For scientific water research
Pipette and test tube
Test tube and pipette close-up
Two biologist in biohazard suits and masks sampling water from a stream or river pipetting a sample into a test tube for chemical analysis of pollutants
Two men in biohazard suits and masks sampling water from a stream or river pipetting a sample into a test tube for chemical analysis of pollutants
Two biologist in biohazard suits and masks sampling water from a stream or river pipetting a sample into a test tube for chemical analysis of pollutants