Rapid Determination of Three Organic Acids in Polygonum Vivipari Rhizoma via One Marker by HPLC-UV at Equal Absorption Wavelength and Effervescence-Assisted Matrix Solid-Phase Dispersion
Table 5
The content of three organic acids in PVR samples (n = 2).
No.
Source
Chlorogenic acid
Neochlorogenic acid
Cryptochlorogenic acid
ESM (mg/g)
EAW (mg/g)
ESM (mg/g)
RSD (%)
EAW (mg/g)
ESM (mg/g)
RSD (%)
S1
Sichuan
8.83 ± 0.04
4.46 ± 0.04
4.45 ± 0.03
0.50
0.77 ± 0.01
0.76 ± 0.02
1.99
S2
Yunan
7.09 ± 0.13
8.25 ± 0.14
8.21 ± 0.16
1.65
2.10 ± 0.00
2.11 ± 0.00
0.21
S3
Sichuan
6.40 ± 0.01
4.23 ± 0.01
4.22 ± 0.00
0.12
0.86 ± 0.00
0.85 ± 0.00
0.74
S4
Sichuan
4.86 ± 0.04
2.95 ± 0.04
2.92 ± 0.02
0.83
0.81 ± 0.01
0.80 ± 0.01
1.14
S5
Guizhou
5.50 ± 0.01
2.05 ± 0.01
2.01 ± 0.01
1.02
0.65 ± 0.01
0.64 ± 0.01
1.93
S6
Yunan
8.61 ± 0.01
1.24 ± 0.01
1.20 ± 0.00
2.00
0.71 ± 0.00
0.70 ± 0.00
0.91
S7
Guizhou
4.29 ± 0.01
2.27 ± 0.01
2.24 ± 0.01
0.89
0.75 ± 0.01
0.74 ± 0.01
1.04
S8
Yunan
1.75 ± 0.00
2.32 ± 0.00
2.29 ± 0.01
0.86
0.72 ± 0.00
0.71 ± 0.00
0.89
S9
Guizhou
6.08 ± 0.05
2.48 ± 0.05
2.45 ± 0.01
0.79
0.66 ± 0.00
0.65 ± 0.00
0.95
S10
Sichuan
13.75 ± 0.09
3.55 ± 0.09
3.53 ± 0.03
0.67
1.44 ± 0.01
1.43 ± 0.01
0.67
RSD was obtained from the tested contents by the EAW method (n = 2) and the ESM method (n = 2).
