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    Lab technician holding sample in flame — Stock Photo
    Lab technician holding sample in flame
    Lab chemist placing a sample slide on a microscope stage — Stock Photo
    Lab chemist placing a sample slide on a microscope stage
    Lab chemist collecting a small amount of liquid with a dropper — Stock Photo
    Lab chemist collecting a small amount of liquid with a dropper
    Hands of scientist in laboratory mixing samples of soil with reagent. — Stock Photo
    Hands of scientist in laboratory mixing samples of soil with reagent.
    Close-up of scientist hand pouring reagent into bottle for chemistry research. — Stock Photo
    Close-up of scientist hand pouring reagent into bottle for chemistry research.
    Close-up of scientist hand pouring reagent into flask for chemical research. — Stock Photo
    Close-up of scientist hand pouring reagent into flask for chemical research.
    Laboratory scientist adding a small amount of solid reagent to a container on a scale — Stock Photo
    Laboratory scientist adding a small amount of solid reagent to a container on a scale
    Lab technician adding liquid from graduated cylinder to beaker — Stock Photo
    Lab technician adding liquid from graduated cylinder to beaker
    Lab technician igniting Bunsen burner — Stock Photo
    Lab technician igniting Bunsen burner
    Lab chemist preparing graduated cylinder for standard solution — Stock Photo
    Lab chemist preparing graduated cylinder for standard solution
    Tooth enamel palette — Stock Photo
    Tooth enamel palette
    Close-up of pink liquid in test tube on table with laboratory glassware. — Stock Photo
    Close-up of pink liquid in test tube on table with laboratory glassware.
    Close-up of scientist hand pouring reagent into flask for chemical research. — Stock Photo
    Close-up of scientist hand pouring reagent into flask for chemical research.
    Close-up of scientist hand agitating liquid in flask for chemical research. — Stock Photo
    Close-up of scientist hand agitating liquid in flask for chemical research.
    Tooth enamel palette — Stock Photo
    Tooth enamel palette
    Lab technician adding reagent to sample while measuring pH — Stock Photo
    Lab technician adding reagent to sample while measuring pH
    Mid section of scientist in laboratory mixing samples of soil with reagent. — Stock Photo
    Mid section of scientist in laboratory mixing samples of soil with reagent.
    Lab technician removing sample vial cap — Stock Photo
    Lab technician removing sample vial cap
    Lab chemist handling water sample — Stock Photo
    Lab chemist handling water sample
    Lab technician adding liquid to graduated cylinder — Stock Photo
    Lab technician adding liquid to graduated cylinder
    Lab chemist placing paper filter for sample testing — Stock Photo
    Lab chemist placing paper filter for sample testing
    Close-up of scientist hand pouring reagent into flask for chemical research. — Stock Photo
    Close-up of scientist hand pouring reagent into flask for chemical research.
    Lab technician using flame test probe to gather sample from vile — Stock Photo
    Lab technician using flame test probe to gather sample from vile
    Close-up of scientist hand pouring reagent into flask for chemical research. — Stock Photo
    Close-up of scientist hand pouring reagent into flask for chemical research.