Skip to main content
. Author manuscript; available in PMC: 2015 Jan 5.
Published in final edited form as: J Agric Food Chem. 2013 Sep 19;61(39):9495–9501. doi: 10.1021/jf402400v

Table 3.

Quality Control results for Ni and C

Concentration (ug/L) Ni Mean %Recovery
Sample Type n Ni ± SD
Instrument Blank 16 BDL –
Reagent Blank 16 BDL –
10 ug/L Check Standard 9 10.4 ± 0.572 96.0%
20 ug/L Check Standard 5 21.2 ± 0.399 106%
Pre-digest Fortification 3 52.1 ± 1.01 104%
Concentration (ug/L) Cr Mean %Recovery
Sample Type n Cr ± SD
Instrument Blank 16 BDL –
Reagent Blank 16 BDL –
10 ug/L Check Standard 8 9.64 ± 0.870 96.4%
20 ug/L Check Standard 8 22.2 ± 0.566 111%
Pre-digest Fortification 3 52.3 ± 1.91 104%