The magnitude of potential carryover was not calculated; but was judged to be acceptable based on chromatographic results. Mean precision and accuracy at the LLOQ (n=3) ranged from 7.1 to 13.1% and from 91.0 to 105.3% (intra-day) and from 11.6 to 96.0%, respectively (inter-day, n=18). Mean inter-day precision and accuracy (n=18) for QCs ranged from 3.4 to 8.5% and from 94.0 to 104.9%, respectively. Mean intra-day precision and accuracy ranged from 2.3 to 10.2% and from 88.0 to 108.4%, respectively. Samples were stable for 5 F/T cycles, and for 12 h on wet ice. Matrix stability was demonstrated for 4 h at 15 to 25°C, and processed sample stability and reinjection reproducibility were acceptable after 104 h at 2 to 8°C. Samples were stable for up to 196 days frozen at -60 to -80°C. The maximum batch size was 96 injections.