210 / 658
4
Figure 4. Chromatograms showing quantifying and confirming ions with ion ratio at LOQ for each compound in this method.
Codeine LOQ = 2.5 ng/mL
Hydrocodone LOQ = 5 ng/mL
Hydromorphone LOQ = 5 ng/mL
Morphine LOQ = 5 ng/mL
Oxycodone LOQ = 2.5 ng/mL
Oxymorphone LOQ = 2.5 ng/mL