Medical Biochemistry and Molecular Biology Department
Chemicals Bottles
Used for: Storage of
different chemicals,
reagents, and even
strong corrosives. So,
they should always
carry an informative
label.
*Instruments used for handling Chemicals
Pipette pump
It is inserted into
the end of the glass
pipette to help the
delivery of liquid
without suction by
mouth.
Spatula
It resembles small paddles or teaspoons. It resists
corrosions. It is used to handle solid powdered chemicals.
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Medical Biochemistry and Molecular Biology Department
Plastic Pasteur
transfer Pipette
Droppers
& Plastic
transfer
pipette
They are used to transfer small amounts or drops of liquid
solutions.
Test Tube Racks
Test tube racks are for holding and
organizing test tubes on the laboratory
counter. Plastic racks may melt in
contact with very hot test tubes.
Test Tube Holder
A test tube holder is useful for holding a test tube
which is too hot to handle.
Petri dish
Used for culture studies and for
preparing agar plates.
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Medical Biochemistry and Molecular Biology Department
Watch Glass
Used as a surface to evaporate a
liquid. It may be used as a beaker
cover or as a weighing tray.
Rubber Stoppers
Rubber stoppers are used to close
containers to avoid spillage, evaporation
and /or contamination. Containers
should never be heated when there is a
stopper in place.
Well Plates
Well plates are used when we want to perform many small
scale reactions at one time.
Wash Bottle
A wash bottle has a spout that delivers a wash
solution to a specific area. Distilled water is the only
liquid that should be used in a wash bottle.
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Medical Biochemistry and Molecular Biology Department
Test Tube Brushes
Test tube brushes are used to clean test
tubes and graduated cylinders. Forcing a
large brush into a small test tube will
often break the tube.
Forceps
Forceps (or tweezers) are used to
pick up small objects.
Weighing Tray
Weighing boats are used to weigh solids
that will be transferred to another vessel.
Bunsen Flame
Tripod
Bunsen burners are used
for the heating of nonvolatile liquids and solids.
*Instruments used for Filtration
Funnels
A funnel is used to aid in the transfer of liquid
from one vessel to another. They are also used
to separate solids from liquids with the aid of filter papers.
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Medical Biochemistry and Molecular Biology Department
Filter
papers
*Instruments Used For Detecting pH And Recording
of Temperature And Specific Gravity
Litmus papers
Red litmus paper is used to
identify bases.
Blue litmus paper is used to
identify acids.
Thermometer
Calibration marks along it, allow the temperature to be
read by the length of mercury within it. It is used usually to
measure the temperature of water bath in lab.
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Medical Biochemistry and Molecular Biology Department
Urinometer (Hydrometer)
Used to measure
the specific
gravity of a liquid
e.g. urine
*Apparatuses and their parts Used in Lab
Balance
Used to weigh chemicals
Centrifuge
Spins liquid samples at
different high speeds to
sediment different fractions.
Gel Electrophoresis Apparatus:
Used to separate macromolecules as DNA , RNA and Protein
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Medical Biochemistry and Molecular Biology Department
Comb of Gel-Electrophoresis
Forms wells in the gel which are
needed to load samples in them.
Spectrophotometer
Cuvette
Used to measure the absorbance
(O.D) of different substances in
biological fluid; using it to calculate
the corresponding concentrations.
Bulb of pH
meter
pH-Meter Apparatus:
Used to measure the pH of a
solution.
Lab water bath
Water Bath provides precise temperature for lab
reactions control and is available with an analog or
digital operating system
Question: Identify the following instruments:
A------------------------------B-----------------------------C-------------------------Chose the proper instrument to measure 1l of solution: Answer is----------7