Question

The determination of lithium (AW = 6.968), in a blood sample is performed as follows: 100 mL of blood, diluted 1 mL, producing a signal equal to 6.7 cm in the chromatogram. A solution similar to that described above was prepared, but 10 mL of 0.010 M LINO3 was also added. This solution was analyzed 6. producing a 14.6 cm signal. Assuming there is linearity between the chromatographic signal and the lithium concentration, what will be the lithium concentration in the patient's original blood sample, in parts per million?

1mL diluted from 100mL of blood

Answer 1