Determination of Inorganic Elements in the Rhizome of Paris polyphylla Smith Var. chinensis (Franch.) Hara by Using Inductively Coupled Plasma Mass Spectrometry

Table 4

Accuracy assessment by analysis of the citrus leaves certified reference material (CRM, GBW10020; n = 3).

Element	Certified value (μg/g)	Obtained value (μg/g)
Al	1150 (8.7%)^a	1090 (7.3%)^a
As	1.1 (18.2%)^a	1.0 (20%)^a
B	32 (9.4%)^a	31 (16.1%)^a
Ba	98 (6.1%)^a	96 (9.4%)^a
Be	0.031 (22.6%)^a	0.033 (18.2%)^a
Bi	0.23 (10.9%)^a	0.228 (11.1%)^a
Ca	42000 (9.5%)^a	41800 (9.7%)^a
Cd	0.17 (11.8%)^a	0.16 (18.8%)^a
Co	0.23 (26.1%)^a	0.24 (33.3%)^a
Cr	1.25 (8.8%)^a	1.27 (8.7%)^a
Cu	6.6 (7.6%)^a	6.4 (10.9%)^a
Fe	480 (6.3%)^a	492 (11.4%)^a
K	7700 (5.2%)^a	7920 (8.2%)^a
Li	1.0 (10%)^a	0.9 (11.1%)^a
Mg	2340 (3%)^a	2280 (7.1%)^a
Mn	30.5 (4.9%)^a	30.1 (14%)^a
Na	130 (15.4%)^a	124 (25%)^a
Ni		1.0 (10%)^a
P	1250 (7.2%)^a	1220 (9%)^a
Pb	9.7 (9.3%)^a	9.5 (8.4%)^a
Se	0.17 (17.6%)^a	0.18 (27.8%)^a
Sr	170 (5.9%)^a	175 (13.7%)^a
Ti	38 (26.3%)^a	40 (22.5%)^a
V	1.16 (11.2%)^a	1.12 (25%)^a
Zn	18 (11.1%)^a	19 (15.7%)^a

% differences between the theoretical and experimental values are given in brackets. ^aValues within each line followed by the same character is not statistically different (). Reference value.