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The Scientific World Journal
/
2014
/
Article
/
Tab 3
/
Research Article
Dispersive Liquid-Liquid Microextraction Combined with Ultrahigh Performance Liquid Chromatography/Tandem Mass Spectrometry for Determination of Organophosphate Esters in Aqueous Samples
Table 3
Recoveries and precisions of OPEs.
Analyte
Spiked (
µ
g/L)
Recovery (%)
RSD (%,
)
Interday variability (%,
)
TEP
0.3, 0.6, 3.0
48.7, 52.8, 58.3
6.9, 6.2, 6.9
6.8, 5.6, 5.3
TCEP
0.3, 0.6, 3.0
85.9, 86.8, 91.4
9.3, 8.1, 5.9
12.3, 10.2, 5.8
TCPP
0.2, 0.4, 2.0
107, 94.2, 95.6
7.3, 5.3, 4.1
7.0, 5.7, 4.3
TBP
0.1, 0.2, 1.0
90.8, 86.4, 89.4
3.9, 3.0, 4.3
2.6, 2.8, 3.0
TBEP
0.1, 0.2, 1.0
113, 95.6, 102
7.4, 3.2, 3.8
7.5, 5.6, 3.9
TPhP
0.1, 0.2, 1.0
101, 97.2, 95.8
6.5, 5.7, 4.5
4.6, 4.5, 3.8
o-TTP
0.1, 0.2, 1.0
103, 94.6, 98.8
6.9, 3.7, 3.2
3.2, 4.5, 6.4
TEHP
0.1, 0.2, 1.0
107, 99.8, 102
5.0, 3.0, 3.6
4.3, 3.3, 2.7