Validation Log
2026-05-03 08:05:37.556933
mwtab Python Library Version: 2.1.1
Source:        https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN008048/mwtab/json
Study ID:      ST004760
Analysis ID:   AN008048
File format:   json
Status: Contains Validation Issues
Number of Issues: 66

Number of Warnings: 0

Number of Value Errors: 63

Number of Consistency Errors: 0

Number of Format Errors: 3

Issue Log:
Error: Unknown or invalid subsection, "PUBLICATION_DOI", in ["PROJECT"].
Error: The required property, "STUDY_TITLE", in ["STUDY"] is missing.
Error: The value, "6-15", 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: The value, "20-44", in ["SUBJECT"]["WEIGHT_OR_WEIGHT_RANGE"] should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['g', 'mg', 'kg', 'lbs']. Ignore this when more complicated descriptions are required.
Error: The value, "116-152", in ["SUBJECT"]["HEIGHT_OR_HEIGHT_RANGE"] should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['cm', 'in']. Ignore this when more complicated descriptions are required.
Error: The value, "Male and female", in ["SUBJECT"]["GENDER"] should be one of "Male", "Female", "Male, Female", "Hermaphrodite", or "N/A". Ignore this when more complicated descriptions are required.
Error: The value, "320°C", in ["MS"]["CAPILLARY_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, "+3.8 kV (positive)", 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 ["MS"]["COLLISION_ENERGY"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["MS"]["COLLISION_GAS"] should be one of "Nitrogen" or "Argon". Ignore this when more complicated descriptions are required.
Error: The value, "N/A", in ["MS"]["DRY_GAS_FLOW"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['L/hr', 'L/min']. Ignore this when more complicated descriptions are required.
Error: The value, "N/A", in ["MS"]["DRY_GAS_TEMP"] should be a number 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, "N/A", in ["MS"]["FRAGMENT_VOLTAGE"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['V']. Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected in ["MS"]["FRAGMENTATION_METHOD"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["MS"]["GAS_PRESSURE"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['psi', 'psig', 'bar', 'kPa']. Ignore this when more complicated descriptions are required.
Error: The value, "N/A", in ["MS"]["HELIUM_FLOW"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['mL/min']. Ignore this when more complicated descriptions are required.
Error: The value, "N/A", in ["MS"]["ION_SOURCE_TEMPERATURE"] should be a number 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, "N/A", in ["MS"]["ION_SPRAY_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: The value, "N/A", in ["MS"]["IONIZATION_ENERGY"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['eV']. Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected in ["MS"]["IONIZATION_POTENTIAL"]. 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 ["MS"]["PRECURSOR_TYPE"]. 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 ["MS"]["REAGENT_GAS"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["MS"]["SOURCE_TEMPERATURE"] should be a number 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, "+3.8 kV", in ["MS"]["SPRAY_VOLTAGE"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['kV']. Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected in ["MS"]["ACTIVATION_PARAMETER"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["MS"]["ACTIVATION_TIME"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['ms']. Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected in ["MS"]["ATOM_GUN_CURRENT"]. 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 ["MS"]["BOMBARDMENT"]. 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 ["MS"]["CDL_TEMPERATURE"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["MS"]["DESOLVATION_GAS_FLOW"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['L/hr', 'L/min']. Ignore this when more complicated descriptions are required.
Error: The value, "N/A", in ["MS"]["DESOLVATION_TEMPERATURE"] should be a number 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 in ["MS"]["INTERFACE_VOLTAGE"]. 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 ["MS"]["LASER"]. 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 ["MS"]["MATRIX"]. 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 ["MS"]["NEBULIZER"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["MS"]["OCTPOLE_VOLTAGE"] should be a number followed by a space with a unit (ex. "5 V") from the following list: ['V']. Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected in ["MS"]["PROBE_TIP"]. 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 ["MS"]["SAMPLE_DRIPPING"]. 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 ["MS"]["SCANNING_CYCLE"]. 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 ["MS"]["TUBE_LENS_VOLTAGE"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "25°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.
Error: An empty value or a null value was detected in ["CHROMATOGRAPHY"]["METHODS_ID"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["CHROMATOGRAPHY"]["COLUMN_PRESSURE"] should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['psi', 'bar']. Ignore this when more complicated descriptions are required.
Error: The value, "5°C", in ["CHROMATOGRAPHY"]["INJECTION_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'] or "room temperature". Ignore this when more complicated descriptions are required.
Error: An empty value or a null value was detected in ["CHROMATOGRAPHY"]["INTERNAL_STANDARD"]. 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 ["CHROMATOGRAPHY"]["INTERNAL_STANDARD_MT"]. 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 ["CHROMATOGRAPHY"]["RETENTION_INDEX"]. 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 ["CHROMATOGRAPHY"]["RETENTION_TIME"]. 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 ["CHROMATOGRAPHY"]["SAMPLING_CONE"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "26 minutes", in ["CHROMATOGRAPHY"]["ANALYTICAL_TIME"] should be a number or range (ex. "5-6") followed by a space with a unit (ex. "5 V") from the following list: ['min']. Ignore this when more complicated descriptions are required.
Error: The value, "+3.8 kV (positive), -3.8 kV (negative)", in ["CHROMATOGRAPHY"]["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"]["MIGRATION_TIME"]. 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 ["CHROMATOGRAPHY"]["PRECONDITIONING"]. 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 ["CHROMATOGRAPHY"]["RUNNING_BUFFER"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["CHROMATOGRAPHY"]["RUNNING_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"]["SHEATH_LIQUID"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["CHROMATOGRAPHY"]["TRANSFERLINE_TEMPERATURE"] should be a number 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 in ["CHROMATOGRAPHY"]["WASHING_BUFFER"]. 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 ["CHROMATOGRAPHY"]["WEAK_WASH_SOLVENT_NAME"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["CHROMATOGRAPHY"]["WEAK_WASH_VOLUME"] 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.
Error: An empty value or a null value was detected in ["CHROMATOGRAPHY"]["STRONG_WASH_SOLVENT_NAME"]. Either a legitimate value should be provided for this key, or it should be removed altogether.
Error: The value, "N/A", in ["CHROMATOGRAPHY"]["STRONG_WASH_VOLUME"] 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.
Error: The value, "5°C", in ["CHROMATOGRAPHY"]["TARGET_SAMPLE_TEMPERATURE"] should be a number 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, "N/A", in ["CHROMATOGRAPHY"]["SAMPLE_LOOP_SIZE"] 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.
Error: The value, "N/A", in ["CHROMATOGRAPHY"]["SAMPLE_SYRINGE_SIZE"] 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.
Error: Unknown or invalid subsection, "SOLVENT_C", in ["CHROMATOGRAPHY"].