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Table 5 Analysis results of FG and CG in processed olive and non-carbonated beverages

From: Simultaneous quantification of ferrous gluconate and calcium gluconate in foods using liquid chromatography–tandem mass spectrometry (LC–MS/MS)

Sample information (originated location)

Contents of ferrous gluconate (g/kg)

Contents of calcium gluconate (g/kg)

Processed olive 1 (Spain)

0.031 ± 0.00

ND

Processed olive 2 (Spain)

0.065 ± 0.007

ND

Processed olive 3 (Spain)

0.065 ± 0.004

ND

Processed olive 4 (Spain)

0.048 ± 0.003

ND

Processed olive 5 (Spain)

0.043 ± 0.003

ND

Processed olive 6 (Italy)

0.043 ± 0.013

ND

Processed olive 7 (Italy)

0.061 ± 0.013

ND

Processed olive 8 (Italy)

0.039 ± 0.007

ND

Processed olive 9 (Italy)

0.052 ± 0.001

ND

Processed olive 10 (Italy)

0.038 ± 0.003

ND

Beverage 1 (Korea)

ND

3.9 ± 0.0

Beverage 2 (Korea)

ND

3.8 ± 0.0

Beverage 3 (Korea)

ND

7.8 ± 0.5

Beverage 4 (Korea)

ND

3.8 ± 0.1

Beverage 5 (Korea)

ND

3.8 ± 0.0

Beverage 6 (Korea)

ND

3.8 ± 0.0

Beverage 7 (Korea)

ND

3.9 ± 0.1

Beverage 8 (Korea)

ND

5.7 ± 0.0

Beverage 9 (Korea)

ND

3.8 ± 0.0

Beverage 10 (Korea)

ND

3.8 ± 0.0

  1. ND not detected