方法：样品溶解后，采用固相萃取法去除大部分水溶性大分子，通过离子色谱分离，柱后衍生化-紫外检测器法测定溴酸盐。
Methods: A Solid Phase Extraction was used to purify the dissolved sample. The extracts were separated and detected by ion chromatography post-column derivation with ultraviolet detector.
本文用过程繁杂的HPLC柱后衍生法测定黄曲霉毒素的不确定度，依据分层建模评定理论进行了评定。
The uncertainty of determination of aflatoxin by HPLC post column derivation method, whose process is relatively complex, is evaluated based on the theory of layer modeling evaluation.
实验结果表明，柱后衍生高效液相色谱法适用于水产品中河豚毒素的检测。
From the results of above, detection of TTX in aquatic products by post column derivation HPLC is feasible.
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