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Table 3 Estimation of the number of similar compounds in the Adams (Ad-L) and the Terpenoids library (Te-L), and in VocBinBase (Vo) against NIST05

From: Unbiased profiling of volatile organic compounds in the headspace of Allium plants using an in-tube extraction device

Library name Number of EI spectra Number of identified compounds ≥850a SD of RI diff (≥850) ≥900a SD of RI diff (≥900)
Ad-L (3rd ed.) 1607 1607 794 8.36 555 8.29
Ad-L (4th ed.) 2205 2205 1077 8.73 765 8.69
Te-L 1982 1982 91 8.48 4 5.56
Vob 1632 212 258 8.67 143 8.09
NIST05 190,825 163,198
  1. The RI difference (diff) was calculated by subtracting the RI of a compound peak in the query library from that in the reference library (NIST05). The values were transformed into absolute values
  2. SD standard deviation; RI diff absolute RI difference
  3. aThe value represents similarity defined as described in “Methods
  4. bVocBinBase contains 1420 unidentified EI spectra