Validation Log 2025-12-15 01:29:18.548835 mwtab Python Library Version: 2.0.0 Source: https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN004670/mwtab/txt Study ID: ST002851 Analysis ID: AN004670 File format: txt Status: Contains Validation Issues Number of Issues: 1 Number of Warnings: 0 Number of Value Errors: 1 Number of Consistency Errors: 0 Number of Format Errors: 0 Issue Log: Error: An empty value or a null value was detected for the subsection, "FLOW_GRADIENT", in the "CHROMATOGRAPHY" section. A legitimate value should be provided for this required subsection.