Abstract:The contents of domoic acid (DA) poisoning in various aquatic products from South China Sea were detected by HPLC. The samples were firstly purified with LC-SAX (strong anion exchange)-SPE (solid phase extraction) and eluted with the mobile phase of acetonitrile-0.1% trifluoroacetate acid (19:81) using external standard method. A good linear range was found within 1-25.0 mg/L (r=1.0). The average recovery was 95.3%. And DA accumulation was detected in nine of the eleven samples. Higher DA accumulation was found in Chlamys farreri and Thalamita crenata, being of 10.113 μg/g and 18.202 μg/g respectively.
