Validation Log
2025-12-14 23:43:15.433289
mwtab Python Library Version: 2.0.0
Source:        https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN002887/mwtab/json
Study ID:      ST001778
Analysis ID:   AN002887
File format:   json
Status: Contains Validation Issues
Number of Issues: 11

Number of Warnings: 2

Number of Value Errors: 5

Number of Consistency Errors: 0

Number of Format Errors: 6

Issue Log:
Error: The required property, "SUBJECT_SPECIES", in ["SUBJECT"] is missing.
Error: The value, "-4.5kV", in ["MS"]["CAPILLARY_VOLTAGE"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['V', 'kV']. Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected in ["CHROMATOGRAPHY"]["INSTRUMENT_NAME"]. A legitimate value should be provided for this required key.
Error: An empty value or a null value was detected in ["CHROMATOGRAPHY"]["COLUMN_NAME"]. A legitimate value should be provided for this required key.
Error: The required property, "FLOW_GRADIENT", in ["CHROMATOGRAPHY"] is missing.
Error: The required property, "FLOW_RATE", in ["CHROMATOGRAPHY"] is missing.
Error: The required property, "COLUMN_TEMPERATURE", in ["CHROMATOGRAPHY"] is missing.
Error: The required property, "SOLVENT_A", in ["CHROMATOGRAPHY"] is missing.
Error: The required property, "SOLVENT_B", in ["CHROMATOGRAPHY"] is missing.
Warning: The "Theoretical Mass (Neg)" column at position 3 in the ["MS_METABOLITE_DATA"]["Metabolites"] table, matches a standard column name, "mass". If this match was not in error, the column should be renamed to the standard name or a name that doesn't resemble the standard name.
Warning: The "Elemental Formula" column at position 2 in the ["MS_METABOLITE_DATA"]["Metabolites"] table, matches a standard column name, "formula". If this match was not in error, the column should be renamed to the standard name or a name that doesn't resemble the standard name.