Validation Log
2025-12-14 23:24:44.090466
mwtab Python Library Version: 2.0.0
Source:        https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN002498/mwtab/json
Study ID:      ST001507
Analysis ID:   AN002498
File format:   json
Status: Contains Validation Issues
Number of Issues: 6

Number of Warnings: 0

Number of Value Errors: 4

Number of Consistency Errors: 0

Number of Format Errors: 2

Issue Log:
Error: The value, "6 months (young) and 20-24 months (old)", in ["SUBJECT"]["AGE_OR_AGE_RANGE"] should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['weeks', 'days', 'months', 'years']. Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected in ["TREATMENT"]["ANIMAL_ANESTHESIA"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "0.2 ml/min", in ["CHROMATOGRAPHY"]["FLOW_RATE"] should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['mL/min', 'uL/min', 'μL/min']. Ignore this when more complicated descriptions are required.
Error: The value, "45", in ["CHROMATOGRAPHY"]["COLUMN_TEMPERATURE"] should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['°C', 'C']. Ignore this when more complicated descriptions are required.
Error: The required property, "FLOW_GRADIENT", in ["CHROMATOGRAPHY"] is missing.
Error: The ["MS_METABOLITE_DATA"]["Metabolites"] table does not have a column for "Metabolite". It is likely misspelled or using a common incorrect substitute.