We evaluated the performance of an imported microcystin ELISA(enzyme-linked-immuno-absborbed assay) kit in the study.The ELISA kit was evaluated by the precision test, MC-LR standard recovery test, cross-reactivity test and a test of comparison with an ELISA method based on the monoclonal antibodies(M8H5).The CVs for intra-assay was very low and that for inter-assay was relatively high.Recovery rate was from 73.5%to 97.8%.The kit showed a high cross-reactivity rate to MC-LR, but a low cross-reactivity rate to other microcystin variants such as MC-RR, MC-LW and MC-LF.ELISA analysis of water samples revealed that the results from two ELISA methods were nearly consistent.The Beacon microcystin plate kit can meet the requirements for qualitative and quantitative detection of MC-LR in water.
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