Validation Log
2026-01-11 07:49:13.054023
mwtab Python Library Version: 2.0.0
Source:        https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN007398/mwtab/txt
Study ID:      ST004421
Analysis ID:   AN007398
File format:   txt
Status: Contains Validation Issues
Number of Issues: 9

Number of Warnings: 2

Number of Value Errors: 9

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, "INSTRUMENT_NAME", in the "CHROMATOGRAPHY" section. A legitimate value should be provided for this required subsection.
Error: An empty value or a null value was detected for the subsection, "COLUMN_NAME", in the "CHROMATOGRAPHY" section. A legitimate value should be provided for this required subsection.
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.
Error: The value, "N/A", for the subsection, "FLOW_RATE", in the "CHROMATOGRAPHY" section 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, "N/A", for the subsection, "COLUMN_TEMPERATURE", in the "CHROMATOGRAPHY" section 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: An empty value or a null value was detected for the subsection, "SOLVENT_A", in the "CHROMATOGRAPHY" section. A legitimate value should be provided for this required subsection.
Error: An empty value or a null value was detected for the subsection, "SOLVENT_B", in the "CHROMATOGRAPHY" section. A legitimate value should be provided for this required subsection.
Warning: The "NB_2025_015 - Blank_3" column at position 147 in the MS_METABOLITE_DATA table may have incorrect values. 90% or more of the values are the same, but 10% or less are different.
Warning: The "NB_2025_015 - QC_Ams_3" column at position 152 in the MS_METABOLITE_DATA table may have incorrect values. 90% or more of the values are the same, but 10% or less are different.