Sample code

238U

(Bq∙Kg−1)

232Th

(Bq∙Kg−1)

40K

(Bq∙Kg−1)

Sample code

238U (Bq∙Kg−1)

232Th (Bq∙Kg−1)

40K (Bq∙Kg−1)

WF1

45.67

58.99

100.7

JF1

127.6

259.09

332.17

WF2

47.35

157.12

164.44

JF2

98.12

140.34

580.64

WF3

10.55

64.94

340.24

JF3

20.2

126.11

450.45

WF4

8.06

94.67

140.26

JF4

84.62

94.64

1252.05

WF5

15.2

60.44

250.4

JF5

25.45

85.56

550.35

Average

25.37 ± 8.71

87.23 ± 18.64

199.21 ± 42.95

Average

71.20 ± 20.95

141.14 ± 31.14

633.13 ± 160.72