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Detection and quantification of neurotransmitters in dialysates
Agustin Zapata1, Vladimir I Chefer, Sandrine Parrot
1National Institute on Drug Abuse Intramural Research Program, National Institutes of Health, Baltimore, Maryland, USA.
Current Protocols in Neuroscience
|April 6, 2013
Summary
Sensitive analytical methods are crucial for quantifying neurotransmitters in microdialysate studies. This research details techniques for measuring monoamines, acetylcholine, and amino acids at nanomolar concentrations.
Area of Science:
- Neuroscience
- Analytical Chemistry
Background:
- Microdialysis is vital for studying neurotransmitter dynamics in vivo.
- Accurate quantification of neurotransmitters is essential for understanding brain function and disease.
Purpose of the Study:
- To describe sensitive analytical methods for neurotransmitter quantification in microdialysate samples.
- To enable the measurement of key neurochemicals at nanomolar concentrations.
Main Methods:
- High-performance liquid chromatography with electrochemical detection (HPLC-ECD) for monoamines and metabolites.
- HPLC coupled to an enzyme reactor for acetylcholine quantification.
- HPLC with fluorescence detection (HPLC-FLD) and capillary electrophoresis with laser-induced fluorescence detection (CE-LIF) for amino acids.
Main Results:
- Methods allow for the sensitive separation and quantification of neurotransmitters.
- Nanomolar concentrations of monoamines, acetylcholine, and amino acids can be accurately measured.
- The described techniques are suitable for microdialysate studies.
Conclusions:
- The presented analytical methods are effective for neurotransmitter analysis in microdialysis.
- These methods provide essential tools for neurochemical research.
- The study facilitates a deeper understanding of neurotransmitter systems.
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