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Related Concept Videos

Quantitative Analysis01:12

Quantitative Analysis

Quantitative analysis is a technique for measuring the amount of specific constituents in a sample. When the sample's composition is unknown, qualitative analysis is performed first to identify its components, which ensures that the correct substances are measured during the quantitative phase.
In quantitative analysis, two key measurements are made: the sample quantity and a property proportional to the amount of the analyte (the substance being analyzed). This forms the basis of the method...
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Peptide Identification Using Tandem Mass Spectrometry

Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
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Mass Spectrometry of Amines

In mass spectroscopy, amines undergo fragmentation to give parent ions with odd molecule weights. This observed mass spectrum follows the nitrogen rule; a molecule with an odd number of nitrogen atoms produces a molecular ion with an odd molecular weight. Amines undergo fragmentation through α cleavage, producing nitrogen-containing cations—iminium ions—and alkyl radicals. Mass spectra of aromatic and cyclic aliphatic amines exhibit strong molecular ion peaks, but acyclic aliphatic amines show...
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Qualitative analysis is the process of identifying elements, ions, or compounds in an unknown sample. It is the first and most fundamental type of analysis based on the hierarchy of analytical goals. This hierarchy is significant as it provides a structured approach to scientific research, with qualitative analysis serving as the initial step, providing essential information before moving on to quantitative or other forms of analysis.
There are two main approaches to qualitative analysis:...

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Quantitative amino acid analysis.

Ben Dunn1

  • 1University of Florida, Gainesville, Florida, USA.

Current Protocols in Molecular Biology
|May 9, 2009
PubMed
Summary
This summary is machine-generated.

Quantitative amino acid analysis provides valuable data. This overview covers sample preparation and necessary calculations for deriving information from this technique.

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Area of Science:

  • Biochemistry
  • Analytical Chemistry

Background:

  • Amino acid analysis is a crucial technique in biochemistry and related fields.
  • Understanding the methodology is key to accurate data interpretation.

Purpose of the Study:

  • To outline the information obtainable through quantitative amino acid analysis.
  • To detail essential sample preparation steps.
  • To provide examples of calculation procedures.

Main Methods:

  • Overview of quantitative amino acid analysis principles.
  • Description of sample preparation protocols.
  • Illustrative examples of data calculation.

Main Results:

  • Demonstrates the types of biochemical information derived from amino acid quantification.
  • Highlights critical aspects of sample handling for reliable results.
  • Presents practical calculation examples for data analysis.

Conclusions:

  • Quantitative amino acid analysis offers significant insights into molecular composition.
  • Proper sample preparation and calculation are vital for accurate results.