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A simple, reliable, and reproducible method for separation and determination of five enkephalin-related peptides based on CE with amperometric detection (AD) is described in this paper. A potential of 1.0 V was applied to the carbon disk electrode, which was used as a working electrode in this system. At 15 kV of applied voltage, the five compounds were separated within 18 min in a 20 mmol/L phosphate buffer solution (PBS, pH 7.6) including 2.5% methanol v/v. LOD for five enkephalins were ranged from 6.31 to 54.3 nmol/L. The method was applied successfully to determine the five compounds added in the human cerebrospinal fluid (CSF) and the recoveries were in the range of 95.8-98.2%. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
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Journal of Separation Science
ISSN: 1615-9306
Year: 2008
Issue: 3
Volume: 31
Page: 574-578
2 . 7 4 6
JCR@2008
2 . 8 0 0
JCR@2023
JCR Journal Grade:1
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0
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