Table 5.

Determination of 5 constituents using different instruments (mg/g, n = 3).

Regions	C1		C2		C3		C4		C5
	UPLC	HPLC	UPLC	HPLC	UPLC	HPLC	UPLC	HPLC	UPLC	HPLC
Beihai	1.918	1.940	0.356	0.346	1.073	0.955	0.144	0.146	0.225	0.229
Qinzhou	2.679	2.796	0.341	0.363	2.438	2.425	0.157	0.161	0.561	0.639
Wuzhou	1.828	1.824	0.237	0.225	1.842	1.835	0.148	0.150	0.460	0.469
Yulin	1.631	1.698	0.261	0.264	1.799	1.799	0.140	0.148	0.425	0.421
Nanning	2.587	2.617	0.289	0.276	1.601	1.613	0.172	0.167	0.471	0.469
Chongzuo	1.850	1.827	0.266	0.243	0.426	0.443	0.109	0.115	0.213	0.210
Liuzhou	1.259	1.234	0.303	0.309	3.521	3.372	0.145	0.143	0.892	0.931
Guigang	1.880	1.882	0.220	0.216	2.589	2.410	0.189	0.194	0.751	0.798
Hezhou	2.915	3.002	0.260	0.262	1.936	1.918	0.192	0.184	0.522	0.571
Fangchenggang	1.462	1.490	0.286	0.280	0.699	0.685	0.129	0.128	0.358	0.392
Pearson's coefficient (r)	0.998∗∗		0.970∗∗		0.998∗∗		0.982∗∗		0.995∗∗

^∗∗At level 0.01 (two-tailed), the correlation was significant.