Datum, i

²³⁵U mass, m, grams

Net counting rates, s, cps

Standard deviation

1

1

33.06; 28.60; 26.62; 25.85

3.23

2

4

117.95; 110.52; 115.68; 120.28

4.17

3

7

184.03; 190.86; 188.65; 159.32

14.54

4

10

274.82; 273.49; 278.63; 275.22

2.19

5

15

405.94; 375.63; 399.78; 364.60

19.60

6

20

540.70; 523.34; 539.95; 534.57

8.01