Larutan Standar

Konsentrasi (ppm)

Absorbansi

5000 0,3906000 0,4867000 0,5888000 0,6759000 0,769

10000 0,877

Y=0,0001x – 0,0915

0,461=0,0001x – 0,0915

0,461+0,0915=0,0001x

X = 5525

Pengenceran 10x = 5525 x 10

= 55250

X = 55250 ppm

X = 25520 ppm

X mg =

X mg = 552,5 mg atau 0,5525 gram

%Kadar =

=

= 11,05 %