首页> 美国政府科技报告 >Determination of Ochratoxin A in Grain by Monoclonal Antibody-Based Enzyme-Linked Immunosorbent Assay.
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Determination of Ochratoxin A in Grain by Monoclonal Antibody-Based Enzyme-Linked Immunosorbent Assay.

机译:单克隆抗体酶联免疫吸附法测定谷物中赭曲霉毒素a的含量。

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摘要

The simple rapid and sensitive enzyme-linked immunosorbent assay (ELISA) methods, direct and indirect ELISA, for quantitation of ochratoxin A in cereal had been developed by the utilization of monoclonal antibody on immunomicroplate. Direct ELIAS was found to be less time consuming than indirect ELISA. For direct ELISA, recovery of 1-500 parts per billion (ppb) OA added to wheat was 78.9-100.0% and rice was 88.9-120.0%. For indirect ELISA, recovery of 1-500 ppb OA added to wheat was 79.0-110.0% and rice was 82.0-120.0%. The minimal detection level for OA was 1 ppb. Analyses of 31 samples that caused humanintoxicant for OA showed that the ELISA results agreed well with those obtained by thin-layer chromatography.

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