A simple and rapid ultrasonic assisted-ionic liquid based-liquid–liquid microextraction (UA-IL-DLLME)
method has been developed for the enrichment and separation of Cu(II), Ni(II) and Pb(II). A two level
factorial design was used to determine the effect of key factors such as pH, volume of ionic liquid (IL),
carbon tetra chloride (CCl4) and sonication time (St). 1-Butyl-3-methylimidazolium hexafluorophosphate
([C4MIM][PF6]) and CCl4 were used as an extractant and dispersant solvent, respectively. The accuracy of
the proposed method was evaluated by analysing of SRM Apple Leaves 1515 certified reference material.
The limits of detections (LODs) were 0.17 lg/L, 0.49 lg/L and 0.95 lg/L for Cu, Ni and Pb, respectively. The
enrichment factor (EF) was 100. The method has been successfully applied for the analysis of the content
of Cu, Ni and Pb in spice, vegetable and fruit samples by flame atomic absorption spectrometry (FAAS).
A simple and rapid ultrasonic assisted-ionic liquid based-liquid–liquid microextraction (UA-IL-DLLME)
method has been developed for the enrichment and separation of Cu(II), Ni(II) and Pb(II). A two level
factorial design was used to determine the effect of key factors such as pH, volume of ionic liquid (IL),
carbon tetra chloride (CCl4) and sonication time (St). 1-Butyl-3-methylimidazolium hexafluorophosphate
([C4MIM][PF6]) and CCl4 were used as an extractant and dispersant solvent, respectively. The accuracy of
the proposed method was evaluated by analysing of SRM Apple Leaves 1515 certified reference material.
The limits of detections (LODs) were 0.17 lg/L, 0.49 lg/L and 0.95 lg/L for Cu, Ni and Pb, respectively. The
enrichment factor (EF) was 100. The method has been successfully applied for the analysis of the content
of Cu, Ni and Pb in spice, vegetable and fruit samples by flame atomic absorption spectrometry (FAAS).
การแปล กรุณารอสักครู่..
