Aliquots

Aliquots An aliquot is a portion of a larger whole, especially a sample taken for chemical analysis or other treatment. The term is often used in various scientific fields, including chemistry, biology, and pharmacology, to describe a measured sub-volume of a solution or mixture.

Usage in Chemistry

In chemistry, an aliquot is a known volume of a solution, typically used in titrations and other analytical procedures. The purpose of using an aliquot is to ensure that a representative sample is analyzed, which can then be used to infer the properties of the entire solution. For example, in a titration, an aliquot of the solution to be analyzed is mixed with a titrant to determine the concentration of a particular substance within the solution.

Usage in Biology

In biology, aliquots are often used in molecular biology and biochemistry experiments. For instance, when working with DNA, RNA, or protein samples, researchers may divide a larger sample into smaller aliquots to avoid repeated freeze-thaw cycles, which can degrade the sample. This practice helps maintain the integrity and reproducibility of experimental results.

Usage in Pharmacology

In pharmacology, aliquots are used to prepare doses of medication. This is particularly important in the preparation of intravenous solutions, where precise dosages are critical. By using aliquots, pharmacists can ensure that each dose contains the correct amount of active ingredient.

Mathematical Definition

In mathematics, an aliquot part (or simply an aliquot) of an integer is any of its divisors other than the integer itself. For example, the aliquot parts of 12 are 1, 2, 3, 4, and 6. The concept of aliquot parts is used in the study of number theory and perfect numbers.

Related Concepts

• Titration
• Solution
• Molecular biology
• Biochemistry
• Pharmacology
• Number theory
• Perfect number

See Also

• Sample (material)
• Dilution
• Concentration
• Analytical chemistry
• Laboratory techniques