Related Experiment Video
Updated: Jul 29, 2026

07:26
Metabolic Pathway Confirmation and Discovery Through 13C-labeling of Proteinogenic Amino Acids
Published on: January 26, 2012
PITC derivatives in amino acid analysis.
Nature
|April 24, 1986
Summary
New separation techniques for phenylthiocarbamyl-amino acids (PTC-amino acids) using reverse phase columns may outperform traditional ion exchange methods. This advancement offers improved analytical capabilities for researchers.
Area of Science:
- Analytical Chemistry
- Biochemistry
Background:
- Traditional ion exchange chromatography is a common method for amino acid analysis.
- Phenylthiocarbamyl-amino acid (PTC-amino acid) derivatization is frequently used for improved detection and separation.
- Existing separation techniques may have limitations in resolution and speed.
Purpose of the Study:
- To investigate the efficacy of refined reverse phase column methods for separating PTC-amino acids.
- To compare the performance of reverse phase chromatography against traditional ion exchange techniques for PTC-amino acid analysis.
Main Methods:
- Development and application of advanced reverse phase high-performance liquid chromatography (RP-HPLC) methods.
- Separation and analysis of PTC-amino acid standards and samples.
- Comparative analysis with established ion exchange chromatography protocols.
Main Results:
- Refined reverse phase methods demonstrate enhanced separation capabilities for PTC-amino acids.
- Reverse phase chromatography shows potential to overcome limitations of ion exchange techniques in terms of resolution and efficiency.
- Specific improvements in peak shape and retention time reproducibility were observed.
Conclusions:
- Advanced reverse phase column chromatography represents a promising alternative for PTC-amino acid separation.
- These refined methods offer a significant advantage over traditional ion exchange techniques for certain analytical applications.
- Further research is warranted to fully explore the potential of these novel separation strategies.
More Related Videos
Related Concept Videos
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...
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...
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.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...

