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Glass beakers filled with test tubes, still life, close-up

Rack of test tubes filled with liquid, close-up

Rows of test tubes in laboratory, close-up

Test tubes

Laboratory tubes

Nitrogen inside tubes in laboratory, close-up

Test tubes

Liquid in test tubes

Liquid in test tubes

Test tubes

Test tubes

Test tubes

Test tubes

Test tubes

Test tubes

Measuring tubes, half filled

Measuring tubes, half filled

Microscope and test tubes

Microscope and test tubes

Man in laboratory, holding test tubes, close-up

Germany, Pipetting pink liquid into test tubes, close up

Mid adult man in laboratory, holding rack of test tubes

Woman taking test tube from row of test tubes, close-up

Test tubes in a test tube rack

Test tubes in a test tube rack

Woman adjusting lab tubes in laboratory, focus on tubes

Woman in laboratory, holding tray of test tubes

Woman in laboratory, holding test tube, close-up

Laboratory equipment, close-up

Microscope and test tubes

Wheat seedlings growing in test tubes, close-up

Empty tubes in a test tube rack

Test tubes, close up

Water dropping into measuring tubes

Test tubes in a holder

Test tubes in a holder

Man holding test tube filled with liquid

Man taking tube from laboratory machinery, close-up

ガラス器具

Woman in laboratory, holding rack of test tubes

Mid adult woman in laboratory inserting test tube into tray

Man in laboratory, tightening lid on test tube, close-up

Man in laboratory, wearing protective gloves, holding test tube

Glass tubes

ガラス器具

Test tubes filled with coloured liquid

Test tubes and pipette

Empty test tubes in a holder

tubes,hospital

Micropipette and eppendorf tubes

Micropipette and eppendorf tubes

Micropipette and eppendorf tubes

Blue test tubes

Test tubes in rack

Empty tubes in a test tube rack

Liquid-filled test tubes in rack

Liquid-filled test tubes in rack

Test tubes

Test tubes and pipette

Chemist adding liquid to test tubes in rack, close-up

Man in laboratory, pouring liquid into row of test tubes

Row of test tubes

実験器具

実験室

実験室

Mid adult man in laboratory, holding test tube

Mid adult man in laboratory, holding test tube

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

Test tubes, close up

Test tubes in rack

Test tubes in rack

Test tubes in rack

Test tubes in rack

Man in laboratory, pouring liquid into row of test tubes

ガラス器具

Close up of test tubes filled with solution in lab

Test tubes containing liquid

Plants in beakers

Mid adult man in laboratory, holding rack of test tubes

Test tubes in centrifuge

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

Mid adult woman injecting liquid into test tube

Man in laboratory, tightening lid on test tube, close-up

Mid adult woman inserting test tube in laboratory

Mid adult woman inserting test tube in laboratory

Mid adult woman in laboratory, examining test tube

Mid adult woman in laboratory inserting test tube into tray

Mid adult woman in laboratory inserting test tube into tray

Woman working in laboratory, close-up

Test tubes in a holder

Test tubes in a holder

Test tubes

Portrait of smiling female teacher wearing protective eyewear, standing behind desk with microscope and test tubes in rack

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

Hand on measuring tubes

実験イメージ

Test tubes in a volumetric flask

Green test tubes

Red test tubes

Test tubes with different coloured liquids in rack

Set of tubes,hospital

Test tubes in beaker

Test tubes in beaker

Test tubes in beaker

Beakers and test tube with colored liquid, overhead view

Samples and test tubes

Chemistry research

Chemistry research

Test tubes in beaker

DNA strand and liquid-filled test tube

Lab technician with test tubes

Test tubes

Test tubes

Test tubes

Test tubes

Robotic arm holding test tube

Robotic arm and test tube

Test tubes with different color liquid

Test tubes in rack, close-up

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

Measuring tube and jar filled with green and orange liquid

Multi well plate with pipette

Multi well plate with pipette

pipet and test tube in biology lab

Healthcare And Medicine

Vanadium (V) solution

Blood Samples in Test Tubes

Eppendorf tube with pipette

Eppendorf tube with pipette

Micropipette and eppendorf tube

Micropipette and eppendorf tube

Measuring tube, close up

Medical measuring tube

Pipetting into microtubes

Pipetting into microtubes

Liquid in test tubes in a rack

Dropping liquid into test tubes with a pipette

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

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

Close-up of pipette and colored liquid in test tubes

Close-up of test tubes with colored liquid inside

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

Close-up of test tubes with colored liquid inside

Test tubes and pipette

Liquid-filled petri dish and molecular structure

Rack of test tubes with solution on counter in lab

Overhead view of test tubes with colored liquid inside in rack

Test tubes in rack

Lab glass, sandwich, close-up

Montage of microscope and test tubes

Vanadium (IV) solution

Test tubes in lab

Man in laboratory, holding tube of liquid, close-up

Man in laboratory, holding tube of liquid, close-up

Test tubes

A scientist holding a test tube

Mid adult woman injecting liquid into test tube

Mid adult woman injecting liquid into test tube, mid section

Mid adult woman injecting liquid into test tube

Mid adult man adjusting laboratory equipment, holding test tube

Teacher and students during chemistry lesson, wearing protective eyewear and looking at test tubes

Test tubes

Pipette dropping liquid into test tubes

Scientist holding test tubes

Sample tubes on ice

laboratory/ hand hold test tube with liquid

Man injecting liquid into test tube, close-up

Mid adult woman in laboratory, examining test tube

Pipette dripping liquid into test tube

Test tubes

試験管

Corn on the cob in test tubes

ガラス器具

Pipette and test tubes

Pipette and test tubes

Chemistry experiment

Chemistry experiment

Scientist doing experiment

実験器具

実験室

Pipette and sample holder

Scientist holding test tube

Scientist holding test tube

Scientist holding test tube

Test tubes in test tube rack

ピペット

ガラス器具

Scientist writing on test tube