3.1.9. Real sample analysis
Two water samples (from Hamoon Lake and Hirmand River
in IRAN) were analyzed by the proposed DLLME combined
with UV–Vis spectrophotometry. All the samples were spiked
with dye standard at two levels, and were extracted subsequently
by using the DLLME technique and finally the extracts
were analyzed by UV–Vis method. Three replicate
experiments were carried out for each concentration level.
The results are shown in Table 3. These results demonstrate
that the waters matrices have a little effect on the DLLME
procedure.
4. Conclusion