The Okadaic Acid ELISA is an immunoassay for the quantitative and sensitive detection of Okadaic Acid. Okadaic Acid is one of the toxins associated with diarrheic shellfish poisoning (DSP). This test is suitable for the quantitative and/or qualitative detection of Okadaic Acid in water samples as well as shellfish samples. For shellfish samples a sample preparation is required. If necessary, positive samples can be confirmed by HPLC, GC/MS, or other conventional methods.