Simultaneous high-performance liquid chromatographic determination of norepinephrine, serotonin, acetylcholine and their metabolites in the cerebrospinal fluid of anaesthetized normotensive rats. |
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Authors: | M Matsumoto H Togashi M Yoshioka M Hirokami K Morii H Saito |
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Institution: | First Department of Pharmacology, Hokkaido University School of Medicine, Sapporo, Japan. |
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Abstract: | A high-performance liquid chromatographic method with electrochemical detection was developed for the simultaneous determination of the levels of norepinephrine (NE), serotonin (5-HT), acetylcholine (ACh) and their metabolites in the cerebrospinal fluid (CSF) of anaesthetized rats. The response curve for each compound was linear for the concentration way of interest. The within- and between-day coefficients of variation (C.V.) for NE, 5-HT and their metabolites were less than 7.85% and 15.67%, respectively, and those for ACh and choline were less than 3.08% and 6.27%, respectively. This simultaneous determination should be useful for elucidating the noradrenergic, serotonergic and cholinergic nerve activity in the central nervous system. |
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