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Table 1 Validation results for determination of thujone in sage products

From: Determination of the biologically active flavour substances thujone and camphor in foods and medicines containing sage (Salvia officinalisL.)

  Repeatability conditions without sample preparation (n = 3) Repeatability conditions including sample preparation of different packages (n = 9) Recovery [%]
Sample Mean
(mg/L)
SD
(mg/L)
RSD
[%]
Mean
(mg/L)
SD
(mg/L)
RSD
[%]
 
Tea 1 11.43 0.03 0.2 11.43 0.49 4.3 97.4
Tea 2 12.78 0.06 0.5 12.78 0.68 5.3 104.0
Tea 3 14.66 0.08 0.5 14.66 0.65 4.4 92.8
Tea 4 4.27 0.03 0.7 4.27 0.54 12.6 101.4
Tea 5 16.12 0.05 0.3 16.12 1.63 10.1 93.7
Tea 6 * * * 7.00 0.06 0.8 *
Tea 7 * * * 18.00 0.78 4.3 102.5
Tea 8 * * * 17.42 0.39 2.2 102.0
  1. * not analyzed in this sample