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Table 4 Anthraquinone and recovery in Indonesian commercial tea (n = 2)

From: Anthraquinone in Indonesian infusion tea: analysis by HPLC–UV and risk assessment

Real samples Anthraquinone (μg/L) Recovery (%)
SP-01 ND 95.78
SP-02 ND 101.73
SP-03 ND 97.92
SP-04 8.17 105.07
SP-05 ND 88.87
SP-06 0.57 106.75
SP-07 16.24 86.74
SP-08 7.06 97.53
SP-09 20.41 94.14
SP-10 ND 82.35
SP-11 22.80 117.53
SP-12 ND 105.39
SP-13 6.32 99.54
SP-14 6.12 89.52
SP-15 26.26 77.76
SP-16 44.23 84.18
SP-17 32.82 112.96
  1. ND non detected