Determination of trace RA by capillary electrophoresis-solid-phase microextraction with direct UV detection.
نویسندگان
چکیده
A new method of offline solid-phase microextraction coupled with capillary electrophoresis (CE) [in an uncoated capillary using borax and boric acid in acetonitrile-water (40:60) as the running buffer] with UV detection at 254 nm is presented and used for direct determination of trace biomedically important retinoic acid (RA) without any derivation. As low as 138 ng/mL RA in aqueous solution can be determined using CE with UV detection with a concentration factor of 19.6 times.
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ورودعنوان ژورنال:
- Journal of chromatographic science
دوره 41 6 شماره
صفحات -
تاریخ انتشار 2003