Table 3.

Recoveries of the six compounds.

Analytes	Sample (g)	Origin (μg)	Spiked (μg)	Found (μg)	Mean Recovery (%) (RSD, %)
Monotropein	0.5	1848.45	1480	3304.33	98.37 (3.23)
			1850	3680.69	99.04 (2.15)
			2220	4059.13	99.58 (3.06)
Deacetyl asperulosidic acid	0.5	1883.74	1500	3351.19	97.83 (4.07)
			1880	3731.03	98.26 (2.38)
			2260	4113.01	98.64 (1.95)
Asperulosidic acid	0.5	174.43	140	310.70	97.33 (2.84)
			175	346.00	98.04 (3.37)
			210	384.14	99.86 (3.69)
Asperuloside	0.5	56.32	45	100.61	98.41 (4.23)
			55	110.13	97.83 (3.94)
			67.5	122.63	98.23 (2.78)
Rubiadin-1-methyl ether	0.5	69.53	55	122.58	96.47 (2.94)
			70	136.56	95.77 (2.62)
			84	149.59	95.32 (3.15)
Rubiadin	0.5	17.62	14	31.27	97.48 (1.75)
			17.5	34.63	97.17 (2.77)
			21	37.88	96.48 (3.28)