Table 2 Limit of quantification for engineered sample mixtures of A. racemosa using qPCR and dPCR.

From: Quantification of Actaea racemosa L. (black cohosh) from some of its potential adulterants using qPCR and dPCR methods

Actual mix ratio of A. racemosa (%)

qPCR

dPCR

LC-480

bCUBE

Measured ratio (%)

RSD (%)

Bias (%)

Measured ratio (%)

RSD (%)

Bias (%)

Measured ratio (%)

RSD (%)

Bias (%)

100%

100

0.20

0.00

100

0.48

0.00

100

0.67

0.00

90%

98

0.45

8.90

93

0.64

3.52

88

0.88

− 2.20

80%

74

0.36

− 7.90

77

0.16

− 3.75

74

0.44

− 11.70

50%

54

0.27

8.00

53

0.19

6.33

36

1.30

− 28.00

10%

11

1.47

10.00

12

0.50

15.00

11

3.30

10.00