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Updated: Jun 27, 2026
Determination of the Gas-phase Acidities of Oligopeptides
Published on: June 24, 2013
Determination of okadaic acid by micellar electrokinetic chromatography with ultraviolet detection
N Bouaïcha1, M C Hennion, P Sandra
1CEMATMA, Laboratoire de Chimie Analytique, ESPCI, Paris, France.
Abstract:
Micellar electrokinetic chromatography (MEKC) with ultraviolet (UV) detection was applied for the determination of non-derivatized phycotoxins associated with diarrhoetic shellfish poisoning. A detection limit for 40 pg of okadaic acid (OA) was achieved. The UV intensities of this toxin measured at 200 nm showed good linearity in the range 40-640 pg. OA was detected in mussels spiked with 10 ng/g whole tissue. The presence of OA and dinophysistoxin-2 was observed in the crude extract of the dinoflagellate Prorocentrum lima.
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