Organic acids

% Recovery (Mean ± SD)

LOD (mg/100 g)

LOQ (mg/100 g)

Oxalic acid

Citric acid

Malic acid

Succinic acid

Formic acid

Acetic acid

90.6 ± 11.5

91.8 ± 9.7

97.8 ± 5.4

98.1 ± 7.3

95.1 ± 2.3

99.4 ± 3.5

0.9

2.2

2

0.2

0.1

3

3

7.3

12

0.5

0.5

9