Comparison Log 2024-12-01 01:45:52.186961 mwtab Python Library Version: 1.2.5 Source: https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN000552/mwtab/... Study ID: ST000340 Analysis ID: AN000552 Status: Inconsistent Sections "CHROMATOGRAPHY" contain missmatched items: {('COLUMN_NAME', 'Waters Acquity BEH Amide (150 x 2.1mm, 1.7um) Waters Acquity UPLC BEH Amide VanGuard pre-column (1.7 μm , 5 mm × 2.1 mm;)"'), ('COLUMN_NAME', 'Waters Acquity BEH Amide (150 x 2.1mm, 1.7um) Waters Acquity UPLC BEH Amide VanGuard pre-column (1.7 μm , 5 mm × 2.1 mm;)')} Sections "SAMPLEPREP" contain missmatched items: {('SAMPLEPREP_SUMMARY', '"1. Weigh 4mg tissue sample in to a 2mL Eppendorf tube. 2. Add 1mL extraction solvent to the tissue sample and homogenize for 45 seconds ensuring that sample resembles a powder. In between samples, clean the homogenizer in solutions of methanol, acetone, water, and the extraction solvent in the order listed. 3. Vortex samples for 10 seconds, then 5 minutes on 4°C shaker. 4. Centrifuge the samples for 2 minutes at 14,000 rcf. Aliquot 500μL supernatant for analysis, and 500μL for a backup. Store backup aliquots in the -20°C freezer. 5. Evaporate one 500μl analysis aliquot in the Labconco Centrivap cold trap concentrator to complete dryness (typically overnight). 6. The dried aliquot is then re-suspended with 500l 50% acetonitrile (degassed as given) 7. Centrifuge for 2 minutes at 14,000 rcf using the centrifuge Eppendorf 5415. 8. Remove supernatant to a new Eppendorf tube. 9. Evaporate the supernatant to dryness in the the Labconco Centrivap cold trap concentrator. 10. Submit to derivatization."'), ('SAMPLEPREP_SUMMARY', '1. Weigh 4mg tissue sample in to a 2mL Eppendorf tube. 2. Add 1mL extraction solvent to the tissue sample and homogenize for 45 seconds ensuring that sample resembles a powder. In between samples, clean the homogenizer in solutions of methanol, acetone, water, and the extraction solvent in the order listed. 3. Vortex samples for 10 seconds, then 5 minutes on 4°C shaker. 4. Centrifuge the samples for 2 minutes at 14,000 rcf. Aliquot 500μL supernatant for analysis, and 500μL for a backup. Store backup aliquots in the -20°C freezer. 5. Evaporate one 500μl analysis aliquot in the Labconco Centrivap cold trap concentrator to complete dryness (typically overnight). 6. The dried aliquot is then re-suspended with 500l 50% acetonitrile (degassed as given) 7. Centrifuge for 2 minutes at 14,000 rcf using the centrifuge Eppendorf 5415. 8. Remove supernatant to a new Eppendorf tube. 9. Evaporate the supernatant to dryness in the the Labconco Centrivap cold trap concentrator. 10. Submit to derivatization.')} 'Metabolites' section of 'MS_METABOLITE_DATA' block do not match.