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Table 4 Accuracy of the HPLC method for the determination of the four flavonoids (1–4)

From: Flavonoids with α-glucosidase inhibitory activities and their contents in the leaves of Morus atropurpurea

Flavonoids

Original (mg)

Spiked (mg)

Found (mg)

Recoverya(%)

RSDb(%)

  

0.13

0.27

97.8

1.99

1

0.14

0.15

0.29

96.0

0.38

0.18

0.32

100.1

2.55

0.11

0.24

102.2

2.06

2

0.13

0.13

0.27

103.5

3.49

0.16

0.29

104.0

5.51

0.07

0.16

104.6

2.56

3

0.08

0.09

0.17

96.1

4.55

0.10

0.19

101.9

0.96

0.04

0.09

97.4

3.62

4

0.05

0.05

0.10

104.6

0.65

0.06

0.11

97.4

3.20

  1. aRecovery (%) = 100 × (amount found - original amount) / amount spiked.
  2. bRSD (%) = 100 × SD / mean.
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Chinese Medicine

ISSN: 1749-8546

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