Validation Log
2026-02-22 08:06:43.949298
mwtab Python Library Version: 2.0.0
Source:        https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN007677/mwtab/json
Study ID:      ST004570
Analysis ID:   AN007677
File format:   json
Status: Contains Validation Issues
Number of Issues: 25

Number of Warnings: 0

Number of Value Errors: 24

Number of Consistency Errors: 0

Number of Format Errors: 1

Issue Log:
Error: An empty value or a null value was detected in ["PROJECT"]["PUBLICATIONS"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["PROJECT"]["CONTRIBUTORS"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["STUDY"]["PUBLICATIONS"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The required property, "SUBJECT_SPECIES", in ["SUBJECT"] is missing.
Error: An empty value or a null value was detected in ["COLLECTION"]["COLLECTION_PROTOCOL_ID"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["COLLECTION"]["COLLECTION_PROTOCOL_FILENAME"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["COLLECTION"]["COLLECTION_PROTOCOL_COMMENTS"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["TREATMENT"]["TREATMENT_PROTOCOL_ID"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["TREATMENT"]["TREATMENT_PROTOCOL_FILENAME"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["TREATMENT"]["TREATMENT"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["TREATMENT"]["TREATMENT_COMPOUND"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["TREATMENT"]["TREATMENT_ROUTE"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["TREATMENT"]["TREATMENT_DOSE"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["TREATMENT"]["TREATMENT_DOSEVOLUME"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "NA", in ["TREATMENT"]["TREATMENT_DOSEDURATION"] should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['h', 'weeks', 'days']. Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected in ["TREATMENT"]["TREATMENT_VEHICLE"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["SAMPLEPREP"]["SAMPLEPREP_PROTOCOL_ID"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["SAMPLEPREP"]["SAMPLEPREP_PROTOCOL_FILENAME"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["SAMPLEPREP"]["EXTRACT_ENRICHMENT"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["SAMPLEPREP"]["EXTRACT_CLEANUP"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["SAMPLEPREP"]["SAMPLE_DERIVATIZATION"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["SAMPLEPREP"]["SAMPLE_SPIKING"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: An empty value or a null value was detected in ["SAMPLEPREP"]["SUBCELLULAR_LOCATION"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "0.3", 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, "40°C", 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.