Table 1 The QA/QC results of analytical method for heavy metal concentrations.

From: Investigation of heavy metal levels in canned tomato paste, olives, and pickled

Metal

LOD,

Āµg kgāˆ’1

LOQ,

Āµg kgāˆ’1

LDR,

Āµg kgāˆ’1

R2

RE

RR%

Cd

0.09

0.3

1.0ā€“100

0.9997

y =ā€‰825.82x āˆ’ā€‰365.6

93.8

As

0.8

3.0

3.0ā€“100

0.9994

y =ā€‰490.99x āˆ’ā€‰290

97.3

Pb

0.7

2.3

2.5ā€“100

0.9981

y =ā€‰3396.7x +ā€‰1957.2

92.7

Hg

0.5

1.8

2.0ā€“100

0.9999

y =ā€‰244.21x āˆ’ā€‰111.46

95.0

Sn

1.4

4.6

5.0ā€“100

0.9977

y =ā€‰165.04x āˆ’ā€‰320.66

99.2

Metal

LOD,

mg kgāˆ’1

LOQ,

mg kgāˆ’1

LDR,

mg kgāˆ’1

R2

RE

RR%

Cu

0.05

0.15

1.0ā€“10

0.9987

y =ā€‰0.0314x +ā€‰0.0056

94.5

Fe

0.2

0.8

1.0ā€“10

0.9983

y =ā€‰0.0166x +ā€‰0.0077

98.3

Zn

0.1

0.4

0.5ā€“50

0.9964

y =ā€‰0.0088x āˆ’ā€‰0.0053

96.4

  1. Note: LOD: limit of detections, R2: R-squared, LOQ: limit of quantifications, RE: Regression equation, LDR: linear dynamic range, RR: Relative ratio.
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