SSensors and Actuators B Chemical3/28/2026A double-spiral microelectrode chip for reagent-free detection of mercury(II) in seawater based on in-situ pH modulationNan Qiu·Chao Bian·Zeqian Wei·Yang Li·Jiayi LiRead at Sensors and Actuators B ChemicalTagsElectrochemical Analysis and ApplicationsElectrochemistrySeawaterMicroelectrodeChipModulation (music)Analytical Chemistry (journal)