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. 2015 Apr 8;10(4):e0121937. doi: 10.1371/journal.pone.0121937

Table 2. Estimated limits of detection (LOD), quantification (LOQ), and linearity of LC-MS/MS method for urinary naphthalene metabolite analysis.

Metabolite LOD (ng/10μl injected) LOQ (ng/10μl injected) Linearity
Range (ng/10μl injected) Correlation Coefficient (R2) a
Mercapturic Acid 3.40 6.79 5–500 0.9989
N-Acetyl GSH 1.29 2.58 1–100 0.9930
Naphthol Glucuronide 2.30 4.60 1–100 0.9973
Naphthol Sulfate 0.91 1.82 1–100 0.9940

a Average correlation coefficient (n = 5 calibration curves)