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. 2023 May 22;415(17):3415–3434. doi: 10.1007/s00216-023-04724-5

Table 5.

InChIkey recovery comparing YMDB and HMDB with the annotated features from the HILIC-HRMS data analysis. “POS” and “NEG” refer to the positive and negative ionization modes, respectively. Absolute values (Abs. value) and percentage matches to the total unique Level 2A annotated features per experimental setup are reported

Unique Level 2A MS-DIAL per experimental setup Level 2A MS-DIAL POS/NEG
D48 SF
112 115
InChIKey match Abs. value [%] Abs. value [%]
Exact InChIKey match in YMDB 31 27.4 30 26.1
Exact InChIKey First Block (skeleton) match in YMDB 81 71.7 83 72.2
Exact InChIKey match in HMDB 44 38.9 42 36.5
Exact InChIKey First Block (skeleton) match in HMDB 101 89.4 103 89.6