Table 2.

Values of precision, trueness and detection limit for different elements determined by using AAS.

Element	Precision (%CV) a: intra-day precision b: inter-day precision c: reproducibility	Trueness (%) a: calculated with CRM b: as recovery	Limit of detection a: in blank solution b: in real sample
CV AAS
Hg	a: below 3.746	a: 100.0–104.546 b: 89.9–99.246	a: 0.0003 μg/mL46 0.00019 μg/mL46
F AAS
Mg		b: 98.134	a: 0.05 μg/mL34
Ca		b: 102.434	a: 0.01 μg/g34
Cr		b: 102.434	a: 0.05 μg/g34
Mn	a: 3.264	a: 97.1–99.264 b: 99.464 99.364	a: 0.000097 μg/mL64
Fe		b: 97.834	a: 0.08 μg/g34
Ni		a: 98.863 99.263	a: 0.00052 μg/mL63
Cu		b: 104.134	a: 0.03 μg/g34
Zn		a: 95.9110* 95.1110* b: 95.234	a: 0.03 μg/g34
Cd	nd: 2.124	b: 96.0–99.024 94.634	a: 0.00011 μg/mL24 0.03 μg/g34
Pb	nd: 1.924	b: 95.8–101.224 96.034	a: 0.0003 μg/mL24 0.03 μg/g34
GF AAS
Be			b: 0.000007 μg/mL5 0.000002 μg/mL5
Al	a: 1.9–9.053 0.8–2.812 b: 5.8–7.212 nd:  ± 7.1515	a: 83.315 10015 42.851 97.651 5257 b: 67–9851 97.0 ± 3.8–103.4 ± 2.853 98–10912 10357	a: 0.9 μg/mL53 0.00023 μg/mL12 0.00035 μg/mL12 0.00048 μg/mL57 0.0011 μg/mL15 b: 0.000023 μg/mL12 0.001 μg/mL12
Si	nd: 8.455 5.955	b: 97–10455
Cr	a: 2.0–2.9108 c: 5.35–6.5959 1.9–4.1108 nd:  ± 4.3715	a: 101.215 107.715 99.0–99.959* 91.76–102.49108 b: 83.1–86.3108	a: 0.0000062 μg/mL59 0.00042 μg/mL15 nd: 0.001 μg/g108
Mn	a: 0.5–3.353 nd: 7.26–9.1760	a: 99–99.360* 9845* 99.1110* 95.3110* b: 99.5 ± 0.8–103.3 ± 1.253	a: 27.6 μg/g53 0.00013 μg/g60 nd: 0.6 μg/g45
Fe		a: 9745* 106105* 101105*	nd: 1.6 μg/g45
Co	nd: 7.6960 0.8060 6.3060	a: 98.9–99.660*	a: 0.0013 μg/g60
Ni	c: 3.06–8.2459 nd: 1.5219 (standard solution) 10.419 (sample) 4.3819 (sample)	a:  + 27.419# − 2.919#  + 52.519#  + 41.719#  + 8.119# − 24.319#  + 59.319# 99.8–100.359* b: 92.1–123.519	a: 0.00023 μg/mL19 0.000025 μg/g59
Cu	nd: 7.3560 1.2960 6.160	a: 96.4–99.860* 9945* 102.5110* 103.8110*	a: 0.00000017 μg/g60 nd: 0.2 μg/g45
Zn		a: 9745*	nd: 0.3 μg/g45
As	nd: 4.7360 6.260	a: 99.460* 103.260*	a: 0.0000159 μg/g60
Mo	nd:   ± 5.915	b: 95.3–103.015	a: 0.00081 μg/mL15
Cd	c: 4.72–7.6959 nd: 3.614 3.214 (standard material)	a: 100.3–10259* 8645* 10514 11514	a: 0.00018 μg/g56 0.00002 μg/g59 0.005 μg/mL14 nd: 0.02 μg/g45
Pb	c: 3.63–7.7659	a: 100.5–100.959* 10645*	a: 0.00157 μg/g56 0.001 μg/g59 nd: 0.1 μg/g45
Bi	nd: 4.344 4.744	a: 96.844 b: 97.744 101.144	a: 0.00002 μg/mL44 0.0015 μg/mL44

nd method of parameter determination was not defined;

^#Trueness expressed as a Bias;

*Calculated based on the literature data.