Sensitive and efficient determination of gabapentin in human serum based on capillary electrophoresis with laser-induced fluorescence detection
A sensitive and efficient analytical method for gabapentin ( GBP ) in human serum based on capillary electrophoresis ( CE ) with laser-induced fluorescence ( LIF ) detection has been established. 6-Oxy-( N -succinimidyl acetate)-9-(2′-methoxycarbonyl) fluorescein ( SAMF ), a new synthesized fluoresc...
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Published in | Journal of analytical chemistry (New York, N.Y.) Vol. 68; no. 7; pp. 639 - 645 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Dordrecht
SP MAIK Nauka/Interperiodica
01.07.2013
Springer |
Subjects | |
Online Access | Get full text |
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Summary: | A sensitive and efficient analytical method for gabapentin (
GBP
) in human serum based on capillary electrophoresis (
CE
) with laser-induced fluorescence (
LIF
) detection has been established. 6-Oxy-(
N
-succinimidyl acetate)-9-(2′-methoxycarbonyl) fluorescein (
SAMF
), a new synthesized fluorescent reagent, was used for precolumn derivatization of the non-fluorescent drug in serum. γ-Aminobutyric acid (
GABA
) was used as an internal standard (
I.S.
). The best derivative condition was obtained in phosphate buffer (pH 8) at room temperature for 10 min. Optimal separation and detection were obtained with a background electrolyte (
BGE
) of 3.5 × 10
−2
M phosphate buffer (pH 5.5) and laser-induced fluorescence detection excited at 473 nm. The method developed for GBP was linear over the concentration range of 4.0 × 10
−9
to 4.0 × 10-7 M. The concentration limit of detection was 2.0 × 10
−10
M (signal-to-noise ratio = 3). The sensitive method was used for the determination of GBP in serum samples. |
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ISSN: | 1061-9348 1608-3199 |
DOI: | 10.1134/S1061934813070071 |