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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Forensic Sci Int. 2015 Oct 26;257:435–441. doi: 10.1016/j.forsciint.2015.10.021

Table 2.

One-Way Analysis of Variation (ANOVA) Approach to Calculate Combined Within-Run and Between-Run Precision (% CV)

Fentanyl (% CV) LOQC (0.0005 mg/L) LQC (0.0015 mg/L) MQC (0.0075 mg/L) HQC (0.040 mg/L) DQC (0.50 mg/L)
Within-Run 6 11 6 8 5
Between-Run 11 10 7 9 5
Norfentanyl (% CV) LOQC (0.0005 mg/L) LQC (0.0015 mg/L) MQC (0.0075 mg/L) HQC (0.040 mg/L) DQC (0.50 mg/L)
Within-Run 11 4 7 7 5
Between-Run 10 6 7 7 5
Acetyl Fentanyl (% CV) LOQC (0.0010 mg/L) LQC (0.0030 mg/L) MQC (0.0150 mg/L) HQC (0.080 mg/L) DQC (1.00 mg/L)
Within-Run 9 4 7 4 4
Between-Run 9 5 6 4 4
Acetyl Norfentanyl (% CV) LOQC (0.0010 mg/L) LQC (0.0030 mg/L) MQC (0.0150 mg/L) HQC (0.080 mg/L) DQC (1.00 mg/L)
Within-Run 5 5 5 4 9
Between-Run 8 7 7 5 9
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