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. 2014 Aug 7;9(8):e103648. doi: 10.1371/journal.pone.0103648

Table 4. Accuracy, precision, recovery and matrix effects for the determination of p-tyrosol in different matrixes (n = 6).

Analyte Concentration(ng/mL) Intra-day Inter-day Recovery Matrix effects
Mean±SD (ng/mL) Precision (%) Accuracy (%) Mean±SD (ng/mL) Precision (%) Accuracy (%) Mean±SD RSD (%) Mean±SD RSD (%)
Heart 50 50.95±5.25 10.30 101.90 48.51±3.90 8.04 97.03 102.82±14.73 14.32 90.98±9.79 10.76
500 496.62±37.18 7.49 99.32 516.32±35.97 6.97 103.26 102.93±7.76 7.54 101.16±9.21 9.11
2000 2046.91±215.38 10.52 102.35 2950.35±1170.56 6.03 97.52 103.93±14.89 14.33 89.88±3.89 4.33
Liver 50 49.16±5.13 10.44 98.33 46.19±3.85 8.54 92.38 105.44±1.99 1.88 85.61±8.71 10.17
500 481.62±31.32 6.80 96.32 467.05±30.99 6.64 93.41 105.50±3.63 3.44 87.13±1.78 2.04
2000 1991.17±50.72 2.55 99.56 2011.83±12.92 0.64 100.59 113.04±15.43 13.65 92.49±3.27 3.53
Spleen 50 54.57±5.88 10.78 109.14 48.96±6.31 12.89 97.93 97.93±12.62 12.89 89.07±15.18 17.04
500 469.79±56.20 11.96 93.96 445. 19±62.74 14. 09 89.04 89.04±12.55 14.09 91.25±4.23 4.63
2000 2059.49±276.27 13.41 102.97 1889.66.59±170.54 9.03 94.48 94.48±8.53 9.03 94.80±5.88 6.20
Lung 50 52.37±4.40 8.41 104.73 50.13±1.74 3.47 100.27 97.98±2.74 2.80 90.88±9.39 11.61
500 510.24±50.35 9.87 102.70 553. 41±11. 00 1. 99 110.68 99.15±11.34 11.44 114.72±14.60 10.33
2000 2032.63±189.52 8.87 106.63 2073. 51±76.06 3.67 103.68 99.69±6.40 6.42 101.75±6.80 6.68
kidney 50 47.20±5.65 11.97 94.40 49.28±3.24 6.59 98.55 98.55±6.47 6.86 112.83±16.16 14.32
500 516.96±54.33 10.51 103.39 491. 53±23.65 4. 81 98.31 98.31±4.73 4.81 90.07±3.99 4.42
2000 2016.55±278.20 13.80 100.83 2017.59±140.74 6.68 105.40 100.83±13.91 13.80 83.371±11.31 13.51
Brain 50 55.42±3.63 6.55 110.84 56.24±1.28 2.28 112.49 114.19±3.46 3.03 82.72±2.50 3.02
500 511.34±60.19 11.77 102.27 555. 59±54.78 9. 86 111.12 105.49±12.45 11.81 115.60±12.28 10.62
2000 2020.71±142.69 7.06 101.04 2114.32±141. 42 6.69 105.72 105.93±5.01 4.73 101.57±1.96 1.93
Urine 50 54.18±4.96 9.15 108.37 56.22±1.51 2.69 112.44 112.25±7.57 6.75 85.06±15.06 17.70
500 487.52±30.93 6.34 97.50 513. 81±4.31 0. 84 102.38 99.70±5.34 5.36 92.95±3.75 4.04
2000 1998.81±78.17 3.91 99.94 2027.51±108. 47 5.35 101.38 99.74±4.76 4.77 93.57±8.09 8.65
Faeces 50 55.42±3.63 6.55 110.84 53.78±6.36 11.83 107.56 105.85±9.47 8.95 91.32±3.01 3.29
500 511.34±60.19 11.77 102.27 507. 35±22.97 4. 53 101.47 100.81±3.45 3.42 91.90±3.18 3.46
2000 2020.71±142.69 7.06 101.04 1929.98±29. 91 1.55 96.50 96.38±1.08 1.17 95.09±2.04 2.15
Bile 20 20.87±1.51 7.21 104.36 19.93±1. 27 6.38 99.66 104.30±9.22 8.84 109.01±24.35 22.34
100 94.24±9.72 10.32 94.24 99.39±13.03 13.11 99.39 95.31±11.61 12.18 91.39±7.34 8.07
200 199.43±5.56 2.79 99.72 200.01±1.72 0.86 100.01 98.70±2.33 2.37 106.50±9.39 8.81