Samples

Original Chromium conc. in sample (mg/L)

Amount of Chromium added

(mg/L)

% Recovery

Residual Chromium conc. in sample (mg/L)

1

0.067

-

82.00

0.012

2

0.043

-

76.74

0.010

3

0.067

10

92.15

0.790

4

0.043

10

92.03

0.800