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Table 4 Method validation results

From: Tissue-specific chemical profiling and quantitative analysis of bioactive components of Cinnamomum cassia by combining laser-microdissection with UPLC-Q/TOF–MS

Analyte Calibration curve Linear range (ng/mL) r2 LODs (ng/mL) LOQs (ng/mL) Repeatability (n = 6, RSD, %) Stability (n = 5, RSD, %) Precision RSD (%)
Intra-day (n = 5) Inter-day (n = 3)
Coumarin y = 905852x − 26008 51.525–1030.5 0.9981 19.1 56.1 17.43 5.99 3.17 2.81
Cinnamyl alcohol y = 1486.4x − 350.23 267.6–11339 0.9970 29.0 147.3 27.56 2.03 6.13 32.66
Cinnamic acid y = 66690x − 2038 66.35–1327 0.9982 159.3 334.2 5.34 7.34 4.31 5.27
Cinnamaldehyde y = 539.3x + 833.7 2615.6–111058 0.9996 513.2 1053.0 10.37 3.40 2.45 30.50
2-Methoxycinnamaldehyde y = 1*106x − 5380.3 39.4–394 0.9953 9.3 52.7 9.26 11.66 23.97 28.40