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. 2015 Mar 20;10(3):e0118553. doi: 10.1371/journal.pone.0118553

Table 3. Recovery of QC Samples for Exe, Exe-d3, 17DhExe, 17DhExe-d3, Exe17Oglu, and Exe17Oglu-d3.

Compound Nominal Concentration (ng/mL) *Recovery (%)
Exe 3.0 109.5
7.5 98.3
25.0 109.1
Exe-d3 10.0 107.9
17DhExe 1.5 106.8
4.0 102.8
10.0 108.3
17DhExe-d3 10.0 109.4
Exe17Oglu 1.5 86.4
4.0 85.3
10.0 84.7
Exe17Oglu-d3 10.0 86.0

*Expressed as mean percentage (n = 4) of peak area of analyte in the tube spiked before extraction to that in the tube spiked after extraction