Table 2: Analytical parameters obtained for the developed methodology.

On-Line-SPE-UHPLC-MS/MSe
Compound LODa (ng L−1) LOQb (ng L−1)RSDc (%, peak area)Recoveryd (%)
5 ng L−1 ( )50 ng L−1 ( )10 ng L−1 ( )500 ng L−1 ( )

NP1.34.31.75.293.195.3
OP1.86.02.49.889.995.0
NPEOs0.3–1.81.0–6.01.1–3.92.0–8.183.1–100.284.1–104.0
OPEOs0.7–2.12.3–7.00.9–4.81.5–7.386.2–104.285.3–95.7
BPA1.96.35.08.590.788.4
E21.04.06.45.789.788.4
E11.34.32.14.984.598.3
E31.34.37.710.186.985.4
EE0.93.06.09.188.390.9
DES0.62.07.56.2102.590.3

MAE-On-Line-SPE-UHPLC-MS/MS
Compound LODa (ng g−1) LOQb (ng g−1)RSDc (%, peak area)Recoveryd (%)
5 ng g−1 ( )250 ng g−1 ( )5 ng g−1 ( )250 ng g−1 ( )

NP0.10.38.99.279.578.2
OP0.10.37.08.182.688.1
NPEOs0.1–0.40.3–1.31.3–7.12.1–8.774.3–99.776.7–102.0
OPEOs0.1–0.60.3–20.9–5.71.9–6.382.5–100.780.3–95.1
BPA0.20.73.33.379.382.2
E20.31.05.08.195.390.4
E10.51.74.85.775.180.9
E30.10.22.34.088.883.9
EE0.31.08.35.998.197.2
DES0.10.35.85.492.997.0

UAE-On-Line-SPE-UHPLC-MS/MS
Compound LODa (ng g−1) LOQb (ng g−1)RSDc (%, peak area)Recoveryd (%)
25 ng g−1 ( )250 ng g−1 ( )25 ng g−1 ( )250 ng g−1 ( )

NP1.34.33.73.171.573.2
OP0.93.06.18.477.780.9
NPEOs0.3–1.81.0–6.00.9–5.00.7–4.281.2–102.677.3–96.5
OPEOs0.6–1.92.0–6.31.2–6.10.5–4.279.9–103.580.9–98.4
BPA0.51.33.36.185.290.0
E21.34.35.04.694.396.4
E11.04.04.88.085.192.4
E30.93.02.37.3100.298.6
EE1.96.38.34.991.487.3
DES0.51.35.83.586.190.2

Limit of detection; blimit of quantification; crepeatability (intraday assays) expressed as relative standard deviation (RSD); drecovery percentages obtained for different matrices spiked at two different concentration levels; edata already published in Vega-Morales et al., 2012 [19].