Pulsed Current Anion Sensor Data for Multiple Nonspecific Ion Selective Electrodes - Mixed Ion Responses

Dataset Overview This dataset contains raw mixed-ion electrochemical time-series data for PAN, PVA, and PVC electrode sets. The data support the mixed-ion RC modeling workflow in which total resistance and capacitance were modeled using scaled parallel-combination assumptions: 1/R_T = alpha * (1/R_NO3 + 1/R_Cl + 1/R_HPO4) C_T = beta * (C_NO3 + C_Cl + C_HPO4) where alpha and beta were fit from experimentally measured mixed-ion responses. Experimental Scope Represented Polymers: PAN, PVA, PVC Electrodes: 01 to 03 per polymer Mixed-ion condition folders: mix_1 to mix_6 (NO3/Cl/HPO4 combinations) Current protocol files per condition: 11 files 1 OCV file (step_index=1) 10 CP files (step_index=2..11, nominal 0.1 to 100 uA) Data Organization Format: Parquet (columnar) Rows: 4,595,153 Columns: 27 Row unit: one raw timepoint from one .mpr file Identifier and condition columns record_id: unique row id file_id: anonymized file-level id (deterministic hash of relative source file path) polymer_name, electrode_name mix_id (mix_1..mix_6) mix_folder_label (original folder label) Ca_M, Cb_M, Cg_M: concentration fields in molar units pCa, pCb, pCg: -log10 transformed concentrations Protocol columns step_index: 1..11 step_type: OCV or CP nominal_current_uA: nominal current for CP steps (0.1, 0.2, 0.5, 1, 2, 5, 10, 20, 50, 100) Raw signal columns time_s potential_V analog_in1_V control_mA, I_mA dQ_C, QminusQo_C Q_charge_discharge_mAh half_cycle, Ns, flags, I_range Concentration Combinations Present The dataset contains six mixed-ion concentration sets (NO3, Cl, HPO4): (3e-2, 3e-6, 6e-4) (2e-4, 1e-2, 3e-6) (3e-6, 5e-4, 4e-2) (4e-2, 8e-2, 3e-2) (1e-4, 7e-4, 8e-4) (6e-6, 3e-6, 4e-6) Coverage Note All polymer/electrode combinations include mix_1, mix_2, mix_3, mix_5, and mix_6. PAN03 does not include mix_4 data. Public-Release Notes Absolute local/network file paths are not included. file_id enables file-level grouping and reproducible analysis without exposing source path strings.