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Table 5 Results of ICP analysis: Zn, Ca and Sr content and their ratios

From: Archaeometric classification of ancient human fossil bones, with particular attention to their carbonate content, using chemometrics, thermogravimetry and ICP emission

Sample number

Zn (ppm)

Ca (ppm)

Sr (ppm)

Sr/Zn

Sr/Ca

1

162

4.24 105

620

3.83

1.46 10-3

2

194

3.80 105

535

2.76

1.41 10-3

3

124

4.28 105

600

4.84

1.40 10-3

4

178

4.09 105

542

3.04

1.33 10-3

5

284

4.15 105

620

2.18

1.49 10-3

6

160

4.20 105

632

3.95

1.50 10-3

7

182

4.09 105

600

3.30

1.47 10-3

8

222

4.32 105

590

2.66

1.37 10-3

9

370

4.40 105

620

1.68

1.41 10-3

10

104

4.16 105

634

6.10

1.52 10-3

11

264

4.22 105

486

1.84

1.15 10-3

12

158

4.36 105

656

4.15

1.50 10-3

13

190

4.20 105

578

3.04

1.38 10-3

14

160

4.02 105

561

3.51

1.40 10-3

15

132

4.14 105

620

4.70

1.50 10-3

16

120

4.26 105

582

4.85

1.37 10-3

17

182

4.20 105

626

3.44

1.49 10-3

18

146

4.08 105

620

4.25

1.52 10-3

19

162

4.41 105

575

3.55

1.30 10-3

20

134

4.30 105

575

4.29

1.34 10-3

21

230

4.09 105

670

2.91

1.64 10-3

22

114

4.12 105

536

4.70

1.30 10-3

  1. RSD% for all determinations is ≤ 1.3.