Table 2. Analytical Results of AA in Different Samples (n = 3).

samples	initial amount (mg/100 g)	standard added (μM)	standard detected (μM)	recovery (%)	RSD (%)
kiwi	46.2	30	31.3	104.3	1.9
		50	49.9	99.8	1.0
lemon	27.1	30	29.6	98.6	1.2
		50	50.2	100.4	1.1
orange	29.2	30	31.1	103.7	1.8
		50	50.9	101.8	0.8
pineapple	35.5	30	28.7	95.7	2.2
		50	50.2	100.4	0.9
juice drink	6.5	30	30.3	101.0	0.9
		50	50.1	100.2	1.3