Table 3. Recovery of Seven Bioactive Compounds in KXP (n = 6).

compound	initial amount (μg)	spiked amount (μg)	detected amount (μg, mean ± SD)	recovery (%)	RSD (%)
POL	0.75	0.75	1.47 ± 0.01	96.8	2.03
DISS	8.54	8.50	17.5 ± 0.19	105.5	1.94
AAS	7.97	8.00	16.1 ± 0.20	100.8	2.34
BAS	83.9	80.0	166 ± 1.61	102.5	2.77
DTU	24.4	24.0	49.5 ± 0.17	104.5	1.62
PAC	34.1	34.0	65.9 ± 0.50	93.6	1.57
DTR	0.96	0.96	1.91 ± 0.01	99.2	0.86