Analyte
Definition
An analyte is a substance or chemical constituent that is being measured and analyzed in a laboratory sample. It is the target of quantitative chemical analysis to determine its concentration within a mixture.
5 Must Know Facts For Your Next Test
- The analyte's concentration can be determined using various methods such as titration, spectrophotometry, or chromatography.
- In a chemical reaction, the analyte is often the reactant whose quantity is of interest.
- Accuracy in measuring the analyte's concentration is critical for stoichiometric calculations in reactions.
- Different analytical techniques may require different preparation methods for the sample containing the analyte.
- Calibration curves are often used to relate instrument response to analyte concentration.
Review Questions
- What role does an analyte play in quantitative chemical analysis?
- Name two methods commonly used to determine the concentration of an analyte.
- Why is it important to accurately measure the concentration of an analyte in stoichiometric calculations?
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Related terms
Titration: A technique where a solution of known concentration (titrant) is used to determine the concentration of an unknown solution (analyte).
Spectrophotometry: An analytical method used to measure how much light a chemical substance absorbs by measuring the intensity of light as a beam passes through sample solution.
Chromatography: A laboratory technique for separating mixtures into their individual components based on their movement through a stationary phase under the influence of a mobile phase.
