Element

Determined concentration, µg × g⁻¹ dry weight

Certified concentration, µg × g⁻¹ dry weight

Standard deviation, %

SRM

Na

300

298.8

0.4

1632c

Mg

4326

4320

0.1

1547

Al

9143

9150

0.1

1632c

S

13498

14620

7.7

1632c

Cl

590

600

1.67

1573a

K

27045

27000

0.2

1573a

Ca

15637

15600

0.2

1547

Sc

14.64

14.6

0.2

433

Ti

518

517

0.3

1632c

V

23.7

23.72

0.1

1632c

Cr

154

136

14

433

Mn

132

131.8

0.2

1633b

Fe

74492

77800

4.3

1633b

Co

12.8

12.9

0.1

433

Ni

39.3

39.4

0.1

433

Zn

202

210

3.7

1633b

As

18.92

18.9

0.1

433

Se

10.3

10.26

0.4

1633b

Br

17.1

18.7

8.5

1632c

Rb

98.9

99.9

1.0

433

Sr

301.6

302

0.1

433

Zr

140

148

5.4

433

Mo

0.43

0.46

6.5

1573a

Ag

0.131

0.133

0.7

433

Sb

1.95

1.96

0.1

433

I

0.29

0.3

3.2

1547

Cs

10.2

11

6.8

1633b

Ba

67.56

67.5

0.1

1632c

La

30.6

33.6

9.2

433

Ce

168

190

11.5

1633b

Sm

1.082

1.078

0.4

1632c

Eu

1.34

1.18

13.7

433

Tb

0.65

0.7

6

433

Yb

1.56

1.57

0.6

690cc

Hf

3.82

3.66

4.6

433

Ta

1.79

1.8

0.1

1633b

W

0.481

0.480

0.2

1632c

Au

0.015

0.016

6.3

667

Th

9.77

9.78

0.1

433

U

0.512

0.513

0.1

1632c