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. 2016 Aug 7;22(29):6690–6705. doi: 10.3748/wjg.v22.i29.6690

Table 1.

Calibration data of the chromatographic methods

Cholesterol			Hypericin
Conc.	PA ± SD	RT ± SD (min)	Conc.	PA ± SD	RT ± SD (min)
(×10^-3 M)	(n = 4)	RT ± SD (min)	(×10^-6 M)	(n = 4)	RT ± SD (min)

2.6	32715275 ± 532288	19.60 ± 0.19	0.6	961398 ± 14312	9.85 ± 0.14
5.2	64995700 ± 622439	19.83 ± 0.26	1.3	3120453 ± 33528	9.63 ± 0.03
7.8	91376450 ± 1113357	19.79 ± 0.14	2.5	5782945 ± 90738	9.41 ± 0.13
10.3	124007250 ± 2116420	19.97± 0.11	5.0	10563681 ± 134692	9.75 ± 0.11
12.9	151245250 ± 2660042	20.03 ± 0.12	10.0	20814150 ± 226368	9.61 ± 0.07

Conc.: Concentration; PA: Peak area; RT: Retention time; SD: Standard deviation.