0 2 4 6 8 10 120

0.02

0.04

0.06

0.08

0.1

0.12

0.14

f(x) = 0.0119428571428571 x + 0.00195238095238096R² = 0.998289751842612

kurva kalibrasi NI C vs A

0 2 4 6 8 10 120

0.02

0.04

0.06

0.08

0.1

0.12

0.14f(x) = 0.01505 x + 0.0016R² = 0.99860021162155

Kurva kalibrasi C vs A

3 4 5 6 7 8 9 10 11 12 13

-0.5

0

0.5

1

1.5

2

f(x) = 0.277257976325929 x − 1.49651378615765R² = 0.917599884548573

Ni PH vs log D

0 2 4 6 8 10 12 14

-1.5

-1

-0.5

0

0.5

1

1.5

2

f(x) = 0.275579888971078 x − 1.96826870689811R² = 0.846705994510064

Co PH vs Log D

3 4 5 6 7 8 9 10 11 12 130

20

40

60

80

100

120

PH optimum Ni

0 2 4 6 8 10 12 140

20

40

60

80

100

120

ph OptimumCo