Validation Log
2025-12-14 22:33:07.516894
mwtab Python Library Version: 2.0.0
Source:        https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN001512/mwtab/json
Study ID:      ST000922
Analysis ID:   AN001512
File format:   json
Status: Contains Validation Issues
Number of Issues: 14

Number of Warnings: 10

Number of Value Errors: 13

Number of Consistency Errors: 0

Number of Format Errors: 0

Issue Log:
Error: An empty value or a null value was detected in ["MS"]["MS_COMMENTS"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value 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, "50", 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 value, "2 ul", in ["CHROMATOGRAPHY"]["SAMPLE_INJECTION"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['μL', 'uL']. Ignore this when more complicated descriptions are required.
Warning: The "quantified m/z" column at position 3 in the ["MS_METABOLITE_DATA"]["Metabolites"] table, matches a standard column name, "moverz_quant". 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 "Formula" column at position 6 in the ["MS_METABOLITE_DATA"]["Metabolites"] table, matches a standard column name, "formula", and some of the values in the column do not match the expected type or format for that column. The non-matching values are:
0        C6 H9 N O5
4       C10 H7 N O3
5       C10 H7 N O3
6        C9 H7 N O2
7        C9 H7 N O2
10     C16 H17 N O9
17    C5 H11 N O4 S
19      C6 H11 N O6
21    C5 H13 N O4 S
22    C5 H13 N O4 S
26     C11 H21 N O3
28     C4 H9 N O5 S
30     C12 H11 N O6
31     C13 H25 N O3
32      C9 H17 N O5
33     C6 H7 N O3 S
36    C5 H11 N O5 S
37    C8 H11 N O4 S
38    C8 H11 N O4 S
40      C10 H7 N O4
41      C10 H7 N O4
42      C10 H7 N O4
Warning: The "PubChem ID" column at position 4 in the ["MS_METABOLITE_DATA"]["Metabolites"] table, matches a standard column name, "pubchem_id". 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 "KEGG ID" column at position 5 in the ["MS_METABOLITE_DATA"]["Metabolites"] table, matches a standard column name, "kegg_id". 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 "retention index" column at position 2 in the ["MS_METABOLITE_DATA"]["Metabolites"] table, matches a standard column name, "retention_index". 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 column "retention index" was found in the ["MS_METABOLITE_DATA"]["Metabolites"] table, but this column implies that another column, "retention_index_type", should also exist, and that column was not found.
Warning: The "MC" column at position 4 in the ["MS_METABOLITE_DATA"]["Data"] table has all null values.
Warning: The "OB" column at position 7 in the ["MS_METABOLITE_DATA"]["Data"] table has all null values.
Warning: The "PubChem ID" column at position 4 in the ["MS_METABOLITE_DATA"]["Metabolites"] table has all null values.
Warning: The "KEGG ID" column at position 5 in the ["MS_METABOLITE_DATA"]["Metabolites"] table has all null values.