ArticleFrontiers in microbiology2026
Comparative evaluation of ELISA, PPIA, and HPLC/MS for microcystin quantification in seven lakes of western Michigan.
Article in Frontiers in microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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6 authors.
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Abstract
Cyanobacterial harmful algal blooms (cHABs) pose escalating risks to aquatic ecosystems and public health through the release of microcystins (MCs), emphasizing the need for accurate detection and quantification. This study compared three widely used MC detection methods-enzyme-linked immunosorbent assay (ELISA), protein phosphatase inhibition assay (PPIA), and high-performance liquid chromatography coupled with mass spectrometry (HPLC/MS)-across about 200 samples from seven drowned river mouth lakes in western Michigan, USA. Results revealed that PPIA and ELISA overestimated the concentration of MC-LR. Specifically, the measurement error of MC-LR equivalent by ELISA and PPIA increased at low concentrations (<0.15 μg/L HPLC/MS-quantified MC-LR) but remained relatively stable at higher levels. Further analysis revealed that among the MC congeners, MC-RR showed the highest contribution rate (60%) to the measurement error by ELISA, while MC-YR showed the highest contribution rate (69%) for PPIA. These discrepancies correlated strongly (
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