High-performance aptapipette sensor for ultrasensitive and specific detection of perfluorooctanoic acid in environmental water samples

. The aptapipette sensor exhibits excellent specificity against perfluorinated compound analogs, ensuring minimal interference from structurally similar substances. It maintains remarkable stability over a one-week storage period, with consistent performance across repeated measurements. Validation in real environmental samples including river water, lake water and tap water yields favorable recovery rates and strong reproducibility. This technology overcomes the complexities of traditional methods such as cumbersome operations and elaborate pretreatment, offering a new strategy for monitoring environmental pollutants and holding potential in environmental toxicology and biomedical diagnostics.