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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