Metals

Conc. in sample

(mg/100g)

Amount added (ppm)

Conc. in spiked sample (mg/100g)

Recovery (%)

RSD (%)

K

123.6 ±2.4

61.8

184.1 ± 3.5

97.8 ± 1.8

1.83

Mg

10.2 ± 0.12

5.1

15.6 ± 0.53

105.8 ± 4.2

3.97

Ca

9.7 ± 0.19

4.85

14.1 ± 1.1

90.7 ± 2.5

2.2

Fe

0.36 ± 0.04

0.18

0.55 ± 0.06

105.6 ± 7.3

6.9

Zn

0.23 ± 0.01

0.11

0.33 ± 0.03

90.9 ± 1.2

1.3

Mn

0.2 ± 0.013

0.1

0.29 ± 0.01

90 ± 6.7

7.4

Cu

0.1 ± 0.005

0.05

0.147 ± 0.08

94 ± 2.9

3.1

Cr

0.002 ± 0.0001

1.0

1.001 ± 0.07

99.9 ± 8.2

8.2

Cd

ND

ND

ND

ND

ND