Scientist placing a red liquid sample with micro pipette into a test tubes.
Scientists use sample pipettes for test tubes. For scientific water research
Scientist placing a red liquid sample with micro pipette into a test tubes.
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 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