Multielement Principal Component Analysis and Origin Traceability of Rice Based on ICP-MS/MS

Table 6

The spike recovery and reproducibility of the spiked sample (n = 6).

Element	Background (mg/kg)	Added (mg/kg)	Recovery (%)	RSD (%)
As	0.127	10	105.3	3.5
		1	108.1	3.2
		0.1	104.6	1.1
B	0.506	10	98.6	0.6
		1	86.1	2.8
		0.1	105.8	1.6
Ba	0.351	10	94.3	2.8
		1	95.2	2.6
		0.1	82.8	8.9
Ca	41.6	100	93.6	0.9
		50	95.4	2.2
		10	102.5	1.6
Cd	0.0272	10	107.6	5.8
		1	92.5	0.9
		0.1	108.6	3.5
Co	0.00675	10	91.6	4.5
		1	95.3	4.1
		0.1	106.8	0.9
Cr	0.0138	10	84.3	5.0
		1	93.5	1.5
		0.1	89.6	1.1
Cs	0.00152	10	110.5	0.6
		1	92.3	2.8
		0.1	94.2	2.3
Cu	2.06	10	95.1	0.5
		1	96.7	4.1
		0.1	97.6	4.8
Fe	2.45	10	105.6	2.3
		1	103.9	6.8
		0.1	107.5	0.5
Ge	0.00261	10	85.3	2.4
		1	96.4	2.9
		0.1	95.8	6.3
K	510	100	84.3	2.5
		50	82.2	2.7
		10	93.6	4.1
Li	0.00365	10	109.5	0.9
		1	106.4	2.2
		0.1	93.6	5.4
Mg	105	100	104.3	3.6
		50	106.4	1.1
		10	83.2	1.8
Mn	7.46	10	92.6	2.0
		1	91.1	1.5
		0.1	93.7	2.9
Mo	0.496	10	94.5	0.4
		1	105.6	7.1
		0.1	93.2	3.8
Na	1.97	10	108.9	4.5
		1	103.7	4.8
		0.1	82.6	1.5
Ni	0.168	10	91.6	0.5
		1	106.3	0.8
		0.1	87.5	1.6
P	448	100	101.2	1.3
		50	104.5	2.9
		10	93.4	3.5
Pb	0.00152	10	89.9	6.6
		1	104.2	1.7
		0.1	106.6	0.9
S	552	100	80.6	1.1
		50	85.9	0.7
		10	93.8	2.5
Sb	0.000154	10	106.4	3.9
		1	95.3	3.3
		0.1	92.8	0.6
Se	0.0274	10	94.7	2.5
		1	95.9	2.1
		0.1	84.6	0.8
Sr	0.163	10	106.4	0.7
		1	108.5	0.9
		0.1	84.9	5.3
Sn	ND	10	104.3	1.4
		1	96.1	5.6
		0.1	95.6	2.0
Ti	0.0865	10	85.3	1.7
		1	91.8	0.8
		0.1	85.9	7.6
V	0.00594	10	92.7	1.6
		1	108.5	1.5
		0.1	106.9	0.8
Al	ND	10	94.5	2.6
		1	93.7	2.1
		0.1	105.2	1.0
Zn	10.9	100	92.3	6.8
		50	82.8	4.6
		10	94.6	3.7
In	ND	10	91.5	2.5
		1	85.4	8.9
		0.1	96.3	1.9

^∗ND means not detected.