lab equipment

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  1. a class of balance designed to measure small mass in the sub-milligram range.
    analytical balance
  2. Often called a "lab balance"
    analytical balance
  3. An instrument used to measure mass very precisely. The device has reading error of +/- 0.05 gram. The name refers to the three beams including the middle beam which is the largest size, the front beam which is the medium size, and the far beam which is the smallest size
    Triple Beam Balance
  4. An instrument that measures light intensity or the optical properties of solutions or surfaces.
  5. Commonly used for the measurement of transmittance or reflectance of solutions, transparent or opaque solids, such as polished glass, or gases. Although many biochemicals are colored, as in, they absorb visible light and therefore can be measured by colorimetric procedures, even colorless biochemicals can often be converted to colored compounds suitable for chromogenic color-forming reactions to yield compounds suitable for colorimetric analysis.
  6. Laboratory equipment made from a container filled with heated water. It is used to incubate samples in water at a constant temperature over a long period of time.
    Water Bath
  7. Are electrical devices which use dry heat to sterilize. They were originally developed by Pasteur. Generally, they can be operated from 50 to 300 °C, using a thermostat to control the temperature.
    Hot Air Oven
  8. A piece of equipment that puts an object in rotation around a fixed axis (spins it in a circle), applying a potentially strong force perpendicular to the axis of spin (outward).
  9. known as Beral pipettes, are similar to Pasteur pipettes but are made from a single piece of plastic and their bulb can serve as the liquid-holding chamber.
  10. is an instrument that measures the specific gravity (relative density) of liquids—the ratio of the density of the liquid to the density of water.
  11. Hydrometer aka
  12. Sealable enclosures containing desiccants used for preserving moisture-sensitive items such as cobalt chloride paper for another use. A common use for ....... is to protect chemicals which are hygroscopic or which react with water from humidity.
  13. Laboratory or field device for the measurement of an index of refraction (refractometry).
  14. The index of refraction is calculated from ....... while for mixtures, the index of refraction can be calculated from the composition of the material using several mixing rules such as the ...... and ......
    Snell's law , Gladstone–Dale relation, Lorentz–Lorenz equation
  15. common piece of laboratory equipment that produces a single open gas flame, which is used for heating, sterilization, and combustion
    Bunsen Burner
  16. Bunsen Burner was named after
    Robert Bunsen
  17. a piece of laboratory equipment used to produce an open flame. It can be made from brass, glass, stainless steel or aluminium.
    Alcohol Lamp
  18. alcohol lamp aka
    alcohol burner or spirit lamp
  19. are substances which change colour with pH. They are usually weak acids or bases, which when dissolved in water dissociate slightly and form ions
    Acid - Base indicators
  20. acid-base indicator is also known as
  21. An instrument that allows remote operation of a pipette, usually by the attachment of an extension tube
  22. Pipettor aka
    aspirator bulb
  23. It is a laboratory equipment used to hold or support the wire gauze and other containers during experiments .
    Iron Stand
  24. Is a piece of Laboratory equipment used to Hold things and is Placed in an iron stand
    Iron Clamp
  25. Used to hold or support beakers during experiments while connected to the iron stand.
    Iron Ring
  26. A device that measures temperature or a temperature gradient.
  27. A nearly ubiquitous laboratory instrument used for transferring milliliter volumes of liquid.
    Serological Pipet
  28. A nearly ubiquitous laboratory instrument used for transferring milliliter volumes of liquid.
    Serological Pipet
  29. aka bulb pipette allows extremely accurate measurement (to four significant figures) a volume of solution. These pipettes have a large bulb with a long narrow portion above with a single graduation mark as it is calibrated for a single volume (like a volumetric flask).
    Volumetric Pipet
  30. is shaped like a cone (flask)
  31. is used for preparing liquids with volumes of high precision. It is a flask with an approximately pear-shaped body and a long neck with a circumferential fill line.
    Volumetric flask
  32. flasks are shaped like a tube emerging from the top of a sphere. The flasks are often long neck; They can be used in distillations, or in the heating a product.
    florence flask
  33. florence flask aka
    Round-bottom flask
  34. A graduated glass tube with a tap/sto/stop cock at one end, for delivering known volumes of a liquid, especially in titrations
  35. A simple container for stirring, mixing and heating liquids commonly used in many laboratories.  ........ are generally cylindrical in shape, with a flat bottom.Most also have a small spout (or "beak") to aid pouring.
  36. Measuring cylinder or mixing cylinder is a common piece of laboratory equipment used to measure the volume of a liquid. It has a narrow cylindrical shape. Each marked line on the ....... represents the amount of liquid that has been measured.
    graduated cylinder
  37. A thin glass tube closed at one end, used to hold small amounts of material for laboratory testing or experiments.
    Test Tube
  38. A thin glass tube closed at one end, used to hold small amounts of material for laboratory testing or experiments.

    A small tube of circular or square cross section, sealed at one end, made of plastic, glass, or fused quartz (for UV light) and designed to hold samples for spectroscopic experiments.
  39. Calibrated, tube-shaped glass container used with laboratory centrifuges for volumetric analysis of separable (solid-liquid or immiscible liquid) samples.
    Centrifuge Tube
  40. In a simple counting chamber, the central area is where cell counts are performed
    Neubauer Counting Chamber
  41. A porcelain or glass plate usually with several small depressions for use in spot tests.
    Spot Plate
  42. A pipe with a wide (often conical) mouth and a narrow stem. It is used to channel liquid or fine-grained substances into containers with a small opening.
  43. To prepare ingredients or substances by crushing and grinding them into a fine paste or powder.
    Mortar and Pestle
  44. vessel material (such as porcelain) used for melting and calcining a substance that requires a high degree of heat.
  45. are scissor-like tools, but instead of having two blades, these tools are replaced with two pincers or pieces of metals that concave together, which allow the users to grasp a hot crucible, flasks, evaporating dishes, or even small beakers.
    Crucible tongs
  46. The principle of centrifuge is divided to
    • centrifugal filtering
    • centrifugal sedimentation.
  47. is made suspension become filtrate under the
    Centrifugal filtering
  48. is applied different density to separate suspension and emulsion and realize liquid-solid or liquid-liquid separation.
    centrifugal sedimentation

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lab equipment
2017-06-28 23:45:59
lab equipment
lab equipment-prelims
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