Sample number

Au (%)

Ag (%)

Pb (%)

Cu (%)

Zn (%)

Fe (%)

Time (min)

pH

1

49.64

53

4.21

24.83

24.38

13.82

10

7

2

60.65

61.13

13.05

31.2

38.42

16.16

20

7

3

68.85

64.31

17.06

26.9

40.78

24.33

10

8

4

75.87

72.08

23.49

36.56

44.62

37.8

20

8

5

76.11

77.66

31.32

44.46

51.03

36.56

10

9

6

82.2

85.03

39.75

51.83

58.8

43.42

20

9

7

84.3

91.69

41.96

76.92

73.95

65.61

10

10

8

92.74

95.74

64.85

82.28

82.39

78

20

10