Validation Log
2025-12-14 22:33:03.242876
mwtab Python Library Version: 2.0.0
Source:        https://www.metabolomicsworkbench.org/rest/study/analysis_id/AN001511/mwtab/txt
Study ID:      ST000922
Analysis ID:   AN001511
File format:   txt
Status: Contains Validation Issues
Number of Issues: 16

Number of Warnings: 12

Number of Value Errors: 15

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, "MS_COMMENTS", in the "MS" section. Either a legitimate value should be provided for this subsection, or it should be removed altogether.
Error: The value 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, "50", 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: The value, "2 ul", for the subsection, "SAMPLE_INJECTION", in the "CHROMATOGRAPHY" section 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 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 "Molecular Weight" column at position 8 in the METABOLITES table, matches a standard column name, "mass". 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 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        C10 H19 N O
1        C8 H15 N O4
2        C8 H15 N O4
3        C8 H17 N O3
4        C8 H17 N O3
5        C8 H17 N O3
6        C8 H17 N O3
7       C13 H23 N O3
11         C3 H9 N O
13        C5 H7 N O2
14       C7 H15 N O3
21       C20 H39 N O
23        C5 H7 N O3
24        C9 H19 N O
25       C6 H11 N O4
32        C6 H15 N O
34       C10 H7 N O3
35       C9 H15 N O4
36      C12 H23 N O4
37        C7 H7 N O2
38       C7 H13 N O3
39       C7 H13 N O3
40       C7 H13 N O3
41       C7 H13 N O3
43       C7 H11 N O3
52      C16 H17 N O9
53      C16 H17 N O9
54        C6 H9 N O4
62       C11 H9 N O5
64      C10 H17 N O5
65       C9 H17 N O3
66       C9 H17 N O3
67       C9 H17 N O3
68       C9 H17 N O3
70       C9 H15 N O2
73       C8 H17 N O2
74       C7 H15 N O2
75       C7 H15 N O2
76       C7 H15 N O2
77       C9 H17 N O4
78       C9 H17 N O4
81       C6 H13 N O3
82      C10 H15 N O2
83       C8 H13 N O2
88       C5 H11 N O2
91      C11 H21 N O4
92        C6 H11 N O
94        C5 H13 N O
95        C5 H13 N O
96     C5 H13 N O4 S
97     C5 H13 N O4 S
99      C13 H25 N O2
100     C13 H25 N O2
103      C12 H17 N O
109     C12 H19 N O2
110      C7 H15 N O3
111      C7 H15 N O3
112      C7 H15 N O3
113      C7 H13 N O2
114      C7 H13 N O2
115      C9 H11 N O2
117      C22 H43 N O
118     C11 H21 N O3
119     C11 H21 N O3
121      C9 H17 N O2
122      C9 H17 N O2
131      C7 H11 N O2
133      C8 H15 N O3
134      C8 H15 N O3
139      C9 H19 N O2
143      C10 H7 N O3
144      C7 H15 N O3
146      C6 H13 N O2
147      C6 H13 N O2
149     C20 H37 N O2
152     C12 H17 N O2
154        C2 H6 O S
158     C10 H17 N O2
159     C10 H17 N O2
160     C10 H17 N O2
175       C6 H13 N O
176       C6 H13 N O
177       C6 H13 N O
180     C15 H29 N O3
181     C13 H25 N O3
182     C13 H25 N O3
183     C20 H39 N O2
184      C9 H17 N O5
185      C9 H17 N O5
186       C8 H9 N O2
187       C8 H9 N O2
Warning: The "PubChem ID" column at position 4 in the 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 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 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 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 table has all null values.
Warning: The "OB" column at position 7 in the MS_METABOLITE_DATA table has all null values.
Warning: The "PubChem ID" column at position 4 in the METABOLITES table has all null values.
Warning: The "KEGG ID" column at position 5 in the METABOLITES table has all null values.
Warning: The "ion" column at position 7 in the METABOLITES table may have incorrect values. 90% or more of the values are the same, but 10% or less are different.