Disadvantages Of Refractometer

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INTRODUCTION
A refractometer is aneoptical device that takes advantage of the fact that light passing through a liquid bends or refracts. The refractometer is a tool. It is used to help you select higher quality of foods containing more vitamins and minerals. They are also used to determine the concentration of dissolved solids in a solution. Cooking oil, molasses, syrup, and other thick liquids require a refractometerqcalibrated to read 30-90 Brix. Refractometer also is used in wine making. (Harrill, 1998) refractometer is also used to test to quality of fruits and vegetables.
A hydrometer is an instrument used to measure the density of a liquid as compared to that of water. Hydrometers usually consist of a calibrated glass tube ending in
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Why?
Temperature is an essential parameter because the index of refraction is affected by temperature. The speed of light in a liquid will increase when the temperature increases. For instance, according to Hanson (2006), when there is 1°C increasing in temperature, many organic liquids the index of refraction decreases by nearly %0.05

What are the advantages and disadvantages of both instruments in measuring total soluble solid content? Refractometer advantages: İnexpensive instrument
Refractometer disadvantages: Tedious calibration No instrument protocol Operator dependent readings( limited accuracy) Long and difficult thermosetting (water bath is required after each experiment)
Hydrometer advantages: Quick instrument Simple method Inexpensive instrument
Hydrometer disadvantages; Breakable glassware especially be careful when it is dropped into solution Difficult to clean and dry it needs to be sure that it is cleaned well because not enough to clean can cause measurement mistake Operator dependent readings Large sample volume required
(“Comparision of different measuring techniques for density and

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