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Scientist holding a test tube above a rack with liquid-filled test tubes

Liquid-filled test tubes in rack

Liquid-filled test tubes in rack

Test tubes with colored liquid inside in rack, close-up

Test tubes with colored liquid inside in rack, close-up

Dropping liquid into test tubes with a pipette

Test tubes in rack, close-up

Test tubes in rack with one pipette inside, low angle.

Flasks, petri dish, rat tubes in rack, high angle

Pipette above flask with red liquid inside

Scientist with laboratory equipment, high angle

Blood Samples in Test Tubes

Overhead view of test tubes with colored liquid inside in rack

Test tubes in test tube rack

Blood Samples in Test Tubes

Test tubes in rack, close-up

Test tubes in rack, close-up

Test tubes in rack, overhead view

Test tubes in rack, overhead view

Test tubes in rack, close-up

Test tubes with different color liquid

Close-up of pipette and colored liquid in test tubes

Close-up of test tubes with colored liquid inside

Close-up of test tubes with colored liquid inside

Beakers and test tube with colored liquid, overhead view

Blood Samples in Test Tubes

Test tubes in a test tube rack

Lab technician with test tubes

Lab technician with test tube

Lab technician with test tube

Liquid in test tubes in a rack

Flasks, test tube,pipette,and graduated cylinder

Test tubes in a test tube rack

Test tubes in a test tube rack

Test tubes in a test tube rack

Test tubes in a rack

Test tubes in a rack

Test tubes in a rack

Test tubes in a rack

Test tubes in a rack

Test tubes in a rack

Test tubes in a rack

Empty tubes in a test tube rack

Empty tubes in a test tube rack

Test tubes in laboratory

Microscope and test tubes

pipet and test tube in biology lab

Rack of test tubes with solution on counter in lab

Rack of test tubes with solution on counter in lab

Rack of test tubes with solution on counter in lab

Rack of test tubes with solution on counter in lab

Rack of test tubes with solution on counter in lab

Rack of test tubes with solution on counter in lab

Rack of test tubes with solution on counter in lab

Pipette mixing liquid into flask

Close up of rack of test tubes with solution in lab

Close up of rack of test tubes with solution in lab

Close up of rack of test tubes with solution in lab

Empty test tubes in rack

Food samples in test tubes in a test tube rack

Food samples in test tubes in a test tube rack

Food samples in test tubes in a test tube rack

Close-up of glass stir stick above glass wear

Test tubes containing liquid in a rack

Rack of test tubes with solution on counter in lab

Set of tubes,hospital

Test tubes in rack

Test tubes in rack

Close up of pipette dropping solution into test tube in rack in lab

Healthcare And Medicine

Scientific glasswears,overhead view

Samples in test tubes

Samples being poured in test tube for research at laboratory

Germany, Bavaria, Munich, Test tubes in test tube rack

Measuring tubes, half filled

Measuring tubes, half filled

Samples and test tubes

Close up of test tubes with liquid

Blood samples in test tubes

Scientific samples in test tubes with microscope

Lentils in test tubes in a test tube rack

Pipette and test tubes

Test tubes with different coloured liquids in rack

DNA strand and liquid-filled test tube

Test tubes in rack

Healthcare And Medicine

Healthcare And Medicine

Laboratory equipment

Pipette adding sample to a test tube in a laboratory

Pipette adding sample to a test tube in a laboratory

Healthcare And Medicine

Liquid in test tubes

Microscope and test tubes

Microscope and test tubes

Microscope and test tubes

Row of test tubes

Rack of test tubes with solution on blue counter

Rack of test tubes with solution on blue counter

Rack of test tubes with solution on blue counter

Blood sample and test tubes

Healthcare And Medicine

Liquid in test tubes

Water dropping into measuring tubes

Healthcare And Medicine,Glassware,Utensil,Test Tube,Test Tube Rack

Blood samples in test tubes

Measuring tube and jar filled with green and orange liquid

Test tubes in a rack with pipette

Healthcare And Medicine,Glassware,Laboratory Glassware,Utensil,,Test Tube

Rack of test tubes filled with liquid, close-up

DNA structure in test tube (Digital Composite)

Pipette dripping liquid into test tube

Germany, Bavaria, Munich, Pipette pouring liquid into test tubes for medical research

Germany, Bavaria, Munich, Pipette pouring liquid into test tubes for medical research

Healthcare And Medicine,Glassware,Laboratory Glassware,Utensil,,Test Tube,Pipette

Germany, Bavaria, Munich, Test tube rack and petri dishes with green sample in laboratory

Close-up of test tubes on table

Close-up of test tubes on table

Close-up of test tubes on table

Test tubes in a tube rack

Test tubes in lab

Healthcare And Medicine

Healthcare And Medicine

Pipette and test tubes

Pipette and test tubes

Swab in a dish

Test tubes with blue liquid inside

Lab samples in test tubes

Test tube rack with test tubes

試験管

試験管

Biological samples in test tubes

1920s test-tube stand

Medical samples

試験管

実験器具

実験室

実験室

Healthcare And Medicine

Healthcare And Medicine

Test tubes

Blood samples in test tubes

Sample being pipetted into a rack of test tubes inside a fume cupboard during a scientific experiment in a laboratory

Sample being pipetted into a rack of test tubes inside a fume cupboard during a scientific experiment in a laboratory

Test tubes containing liquid

Laboratory Test & Medicines

High angle view of various laboratory experiment on table

High angle view of various laboratory experiment on table

Germany, Bavaria, Munich, Biocompatibility by test wiith blood in laboratory

Healthcare And Medicine

Healthcare And Medicine

Hand holding pipette above rack

Laboratory worker placing liquid filled test tube in rack. close-up

Technician holding test tube with liquid in greenhouse

Eppendorf tubes and pipette

Rack of test tubes with solution on counter in lab

Pouring from beaker into test tube

Laboratory glassware and DNA structure (Digital Composite)

Germany, Bavaria, Munich, Test tubes and petri dishes for medical research in laboratory

Germany, Bavaria, Munich, Test tubes and petri dishes for medical research in laboratory

Germany, Bavaria, Munich, Test tubes and petri dishes for medical research in laboratory

Germany, Bavaria, Munich, Photometric measuring of microtiter plate

Chemistry test tubes multi coloured

Medical equipment

Chemistry test tubes multi coloured

Germany, Bavaria, Munich, Droplet being dispensed from pipette into test tube

Germany, Bavaria, Munich, Droplet being dispensed from pipette into test tube

Germany, Bavaria, Munich, Droplet being dispensed from pipette into test tube

Girl pouring chemical into test tube

Glass tubes

Medical equipment

Test tubes in a rack

Test tubes in a rack

Blood sample in a virology tube

Pill in test tube

Hand on measuring tubes

試験管

Biological research

Biological research

Biological research

Healthcare And Medicine

Healthcare And Medicine

Healthcare And Medicine

Healthcare And Medicine

Measuring tube, close up

Medical measuring tube

Man holding test tube filled with liquid

Test tube in rack

Germany, Pipetting pink liquid into test tubes, close up

Laboratory Test & Medicines

Laboratory Test & Medicines

Hands holding measuring tube

Tweezers holding pill in water, bubbles

試験管

試験管

Pipette dropping liquid into a test tube

Test tubes in laboratory

tubes,hospital

Test tubes

Test tubes

Test tubes